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Статті в журналах з теми "Inorganic Nano-particles"
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Kuroda, Akihiro, Kenji Sugibayashi, Hiroaki Todo, Kiminori Ito, Takashi Amemiya, Takashi Abe, and Isoji Miyagi. "Natural-Origin Inorganic Nano-Particles." Journal of Society of Cosmetic Chemists of Japan 51, no. 4 (2017): 317–25. http://dx.doi.org/10.5107/sccj.51.317.
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Hou, Jianfeng, and Haiwang Wang. "Synthesis and Characterization of Organic–Inorganic Complex." Journal of Nanoelectronics and Optoelectronics 16, no. 3 (March 1, 2021): 466–70. http://dx.doi.org/10.1166/jno.2021.2947.
Повний текст джерелаАнотація:
An new method is described for fabricating BiFeO3@PVDF composites using sultraviolet light to motivate the surface electronic of BFO conduct reduction system. The synthesis scheme consists of: (a) preparation of BiFeO3 nano particles using Hydrothermal synthesis method. (b) oxidation of the PVDF powders in the effect of the mixed gas (ozone and dioxygen) and sultraviolet light. (c) redox reaction of the oxidated PVDF and BiFeO3 nano particles in the effect of sultraviolet light. The synthesized BiFeO3@PVDF composites show that this method could increase the compatibility between PVDF and BiFeO3 nano particles. Moreover, a formation mechanism for the composite is proposed.
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Cheng, Yujia, Guang Yu, Xiaohong Zhang, and Boyang Yu. "The Research of Crystalline Morphology and Breakdown Characteristics of Polymer/Micro-Nano-Composites." Materials 13, no. 6 (March 21, 2020): 1432. http://dx.doi.org/10.3390/ma13061432.
Повний текст джерелаАнотація:
In this article, low-density polyethylene (LDPE) was used as a matrix polymer, the Micro-ZnO and Nano-ZnO particles were used as the inorganic filler. With the melt blending method, the Nano-ZnO/LDPE(Nano-ZnO particles doping into LDPE), Micro-ZnO/LDPE(Micro-ZnO particles doping into LDPE) and Micro-Nano-ZnO/LDPE (Nano-ZnO and Micro-ZnO particles doping into LDPE in the same time) composites were prepared. Then, the inorganic filler and the composites were dealt with structural characterizations and analysis by Fourier transform infrared (FTIR), Polarization microscope (PLM), and Differential scanning calorimeter (DSC). Besides, these samples were dealt with (alternating current) AC breakdown performance test. The micro-experimental results showed that the Micro-ZnO and Nano-ZnO particles doping reduced the crystal size and increased the crystallization rate. With the change of cell structure, the crystallinity of composites increased. The crystallinity order of different samples was as follows: LDPE < Micro-ZnO/LDPE < Nano-ZnO/LDPE < Micro-Nano-ZnO/LDPE. From the breakdown of the experimental result, with the same mass fraction of the different inorganic doping of particles, the breakdown strength of these composites was different. The Nano-ZnO particle doping could improve the breakdown strength of composites effectively. Among them, the breakdown strength of Nano-ZnO/LDPE and Micro-Nano-ZnO/LDPE were 11% higher and 1.3% lower than that of pure LDPE, respectively. Meanwhile, the breakdown strength of Micro-composite was the lowest but its Weibull shape coefficient was the highest. Therefore, the Micro-ZnO doping was helpful for the Nano-ZnO dispersing in the matrix, which produced the Micro-Nano-synergy effects better.
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Cheng, Yujia, and Guang Yu. "The Research of Interface Microdomain and Corona-Resistance Characteristics of Micro-Nano-ZnO/LDPE." Polymers 12, no. 3 (March 4, 2020): 563. http://dx.doi.org/10.3390/polym12030563.
Повний текст джерелаАнотація:
In this article, the melting blend was used to prepare the Micro-ZnO/LDPE, Nano-ZnO/LDPE and Micro-Nano-ZnO/LDPE with different inorganic particles contents. The effect of Micro-ZnO and Nano-ZnO particles doping on interface microdomain and corona-resistance breakdown characteristics of LDPE composite could be explored. Based on the energy transfer and heat exchange theory of energetic electrons, the inner electrons energy transfer model of different ZnO/LDPE composites was built. Besides, the microstructure and crystalline morphology of inorganic ZnO-particles and polymer composites were detected by SEM, XRD, FTIR, PLM and DSC test, and the AC breakdown and corona-resistance breakdown characteristics of composites could be explored. From the experimental results, the Nano-ZnO particles after surface modification dispersed uniformly in LDPE matrix, and the nanoparticles agglomeration almost disappeared. The inorganic particles doping acted as the heterogeneous nucleation agent, which improved the crystallization rate and crystallinity of polymer composites effectively. The ZnO particles with different size doping constituted the different interface structure and crystalline morphology, which made different influence on composites macroscopic properties. When the Nano-ZnO particle size was 40nm and the mass fraction was 3%, the breakdown field strength of Nano-ZnO/LPDE was the highest and 15.8% higher than which of pure LDPE. At the same time, the shape parameter β of Micro-Nano-composite was the largest. It illustrated the microparticles doping reduced the probability of nanoparticles agglomeration in matrix. Besides, both Micro-ZnO and Micro-Nano-ZnO particles doping could improve the ability of corona corrosion resistance of LDPE in varying degrees. The corona-resistant breakdown time order of four samples was as follows: LDPE < Micro-ZnO/LDPE < Nano-ZnO/LDPE < Micro-Nano-ZnO/LDPE. When the mass fraction of Micro-ZnO and Nano-ZnO particles was 2% and 3% respectively, the corrosion depth and area of Micro-Nano-ZnO/LDPE was the least, and the ability of corona corrosion resistance was the strongest.
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Gupta, Nishu, and K. M. Gupta. "Emerging Scope of Hybrid Solar Cells in Organic Photovoltaic Applications by Incorporating Nanomaterials." Advanced Materials Research 548 (July 2012): 143–46. http://dx.doi.org/10.4028/www.scientific.net/amr.548.143.
Повний текст джерелаАнотація:
In recent years, semiconductor nanomaterials have been extensively studied and reports are available for their preparation methods, physical and chemical properties of nanoparticles and their characterization techniques. Because of their potential applications, ZnS nanoparticles are recently major area of research. It is an important inorganic material for a variety of applications including photoconductors, solar cells, field effect transistors, sensors, transducers optical coatings and light-emitting materials. Inorganic nano-particles have found potential application in various electronic devices. Synthesis, shape and size control are important issues for nano-particles research. Various nano-structured materials have found potential applications in optical and electrical devices such as photoconductors, LEDs, solar cells, field effect transistors, optical coatings etc. ZnS has wide band gap ranging from 3.5 to 3.8 eV at room temperature and the band gap can be tuned in the UV region by controlling the size of the nano-particles. In the present work we have studied the synthesis of ZnS nano-particles, their characterization to investigate various properties such as size, structure, band gap and luminescence via different characterization tools. The particles were then used as acceptors for fabrication of organic hybrid solar cells.
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Wang, Huan, Xiao Jin, and Jian Wei Cui. "Study of Organic/Inorganic Hybrid Nanoparticles in Sizing Agents for Mechanism and Effect of Fiber Adhesion." Advanced Materials Research 821-822 (September 2013): 511–17. http://dx.doi.org/10.4028/www.scientific.net/amr.821-822.511.
Повний текст джерелаАнотація:
This paper stated the preparation of nano-modified polyacrylic acid sizing agents by adding self-made hybridized nano-TiO2(titanium dioxide)/PSt(Polystyrene) and nano-SiO2(silica dioxide)/PSt emulsion respectively into self-made polyacrylic acid sizing agents which called SW. Influences of two kinds of nano hybrid particles in nano-modified SW with different dosages on the strength of sizing yarns and mechanisms of increasing adhesion were analyzed. Experimental results showed that: 1. when two kinds of nano particles’ weight was about 1.1% of SW solid content, adhesion force of nano-modified sizing agents with Terylene/Cotton(T/C)fibers will reach the maximum,while when the weight of nano particles were less than 1.1% or more than 1.1%, the adhesion force between sizes and (T/C)fibers increased obviously or declined evidently; 2. scanning electronic microscope(SEM) photograph of roving chips displayed that fibers’ surface were completely covered by smooth size film and many hybrid nanoparticles between macromolecules of sizes, thus engendering huge bonding force between sizes and fibers, and increasing the slip resistance between fibers.
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Wang, Jian, Wenjie Zhang, Yating Zhang, and Haolin Li. "Preparation of Polymer-Based Nano-Assembled Particles with Fe3O4 in the Core." Polymers 15, no. 11 (May 29, 2023): 2498. http://dx.doi.org/10.3390/polym15112498.
Повний текст джерелаАнотація:
Organic–inorganic nanocomposite particles, possessing defined morphologies, represent the next frontier in advanced materials due to their superior collective performance. In this pursuit of efficient preparation of composite nanoparticles, a series of diblock polymers polystyrene-block-poly(tert-butyl acrylate) (PS-b-PtBA) were initially synthesized using the Living Anionic Polymerization-Induced Self-Assembly (LAP PISA) technique. Subsequently, the tert-butyl group on the tert-butyl acrylate (tBA) monomer unit in the diblock copolymer, yielded from the LAP PISA process, was subjected to hydrolysis using trifluoroacetic acid (CF3COOH), transforming it into carboxyl groups. This resulted in the formation of polystyrene-block-poly(acrylic acid) (PS-b-PAA) nano-self-assembled particles of various morphologies. The pre-hydrolysis diblock copolymer PS-b-PtBA produced nano-self-assembled particles of irregular shapes, whereas post-hydrolysis regular spherical and worm-like nano-self-assembled particles were generated. Utilizing PS-b-PAA nano-self-assembled particles that containing carboxyl groups as polymer templates, Fe3O4 was integrated into the core region of the nano-self-assembled particles. This was achieved based on the complexation between the carboxyl groups on the PAA segments and the metal precursors, facilitating the successful synthesis of organic–inorganic composite nanoparticles with Fe3O4 as the core and PS as the shell. These magnetic nanoparticles hold potential applications as functional fillers in the plastic and rubber sectors.
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Yang, Ming Shan, and Ying Quan. "Surface Encapsulation of Nano-CaCO3 Particle by In Situ Emulsion Polymerization." Advanced Materials Research 58 (October 2008): 163–67. http://dx.doi.org/10.4028/www.scientific.net/amr.58.163.
Повний текст джерелаАнотація:
The nano-CaCO3/polyacrylate core-shell inorganic-organic complex nano-particles were prepared by in situ emulsion polymerization based on fresh slush pulp of calcium carbonate (CaCO3) nanoparticles in this paper. The dispersion and encapsulation of nanoparticles were investigated by transmission electron microscopy (TEM) and electron spectroscopy for chemical analysis(ESCA). The results showed that in the presence of nano-CaCO3 particles, the in situ emulsion polymerization of acrylates was carried out smoothly, and polyacrylates successfully encapsulated on the surface of nano-CaCO3.
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WANG, WEI, JIACHENG GAO, YONG WANG, and JIAN ZHOU. "PREPARATION OF VANADIUM CATALYST CONTAINING NANO-V2O5 PARTICLES." International Journal of Modern Physics B 19, no. 01n03 (January 30, 2005): 659–62. http://dx.doi.org/10.1142/s0217979205029262.
Повний текст джерелаАнотація:
A new preparation process of the vanadium catalyst with nano- V 2 O 5 particles was introduced in this paper. The inorganic sol-gel method is used to prepare the sols and gels with p nano- V 2 O 5 particles. The morphology, size and distribution of the nano- V 2 O 5 particles in the sols-gels and vanadium catalyst had been studied by TEM, SEM, XRD and DSC. The results show that with the w/v (the ratio of water and vanadium) declining, the morphology of the nano- V 2 O 5 particles varies from needle to near-ball then to sphere; the better process parameter to prepare the sols and gels with nano- V 2 O 5 particles is 800~860°C×10~15min; the sols and gels and catalyst with 30~60nm V 2 O 5 particles had been obtained by this process.
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Cheng, Yujia, Guang Yu, Boyang Yu, and Xiaohong Zhang. "The Research of Conductivity and Dielectric Properties of ZnO/LDPE Composites with Different Particles Size." Materials 13, no. 18 (September 17, 2020): 4136. http://dx.doi.org/10.3390/ma13184136.
Повний текст джерелаАнотація:
Nanocomposites exhibit a high dielectric strength, whereas microcomposites exhibit a high thermal conductivity. In this study, good insulating materials were developed on the basis of the synergetic effect of micro- and nanoparticles, which were used as inorganic fillers. With a double-melting blend, nano-ZnO/low density polyethylene (LDPE), micro-ZnO/LDPE, and micro-nano-ZnO/LDPE composites were prepared, according to the scanning electron microscope test, polarization microscope test, conductivity test, breakdown test, and dielectric spectrum test, the dielectric property of micro-nano-ZnO/LDPE was explored. The SEM test results showed that by adding a suitable proportion of ZnO particles, the inorganic particles could disperse uniformly without reuniting. The PLM test results showed that the micro- and nano-ZnO particles adding decreased the crystal size. The arrangement was regular and tight. The macroscopic results showed that the mass fraction of nanoparticles and microparticles were 3% and 2%, the samples conductivity was the lowest. The breakdown field strength of the nanocomposites increased. The breakdown field strength of nanocomposites with 1%, 3%, and 5% nanoparticle contents were 5%, 15%, and 10% higher than that of pure LDPE. The addition of inorganic particles resulted in new polarization modes: Ionic displacement polarization and interfacial polarization. The ZnO/LDPE composites exhibited a higher dielectric constant and dielectric loss factor than pure LDPE. However, with the increasing frequency, it took considerable time to attain interfacial polarization in the nanocomposite and micro-nanocomposite, thus decreasing the dielectric constant.
Дисертації з теми "Inorganic Nano-particles"
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Tooley, Ian Robert. "Surface charaterisation of TiOâ‚‚ Nano-particles." Thesis, University of Newcastle Upon Tyne, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268438.
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D'Amen, Eros <1985>. "Synthesis and Characterization of Functional Inorganic Nano-Micro Particles and their Role in Innovative Practical Applications." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7622/1/TESI_Eros_DAmen.pdf.
Повний текст джерелаАнотація:
In this thesis, the synthesis of nano-micro particles of crystalline inorganic materials and four different applications involving their use, are presented . Inorganic particles have been synthesized following two main criteria: i) the particle’s dimensions, specific surface area and crystalline phase of the product have been optimized for the practical application; ii) both the synthesis and application should be based on a simple procedure, environmental low impact, economical affordability.
In particular, Titanium dioxide nanoparticles have been synthesized by sol-gel hydrolysis of Titanium(IV) isopropoxide in an isopropyl alcohol/water solution. The isopropyl alcohol contained in the solvent mixture act as a capping agent stabilizing the forming nanometric particles, and play also a role in the suspension stability. Synthesized Titanium dioxide reveals good photocatalytic properties directly as synthesized, without needing further thermal treatment. Photoactive Titanium dioxide have been used for NOx pollutants abatement on waste gases produced by a working plant and as self-cleaning coating on photovoltaic Silicon panels, showing good results.
Crystalline calcium phosphate nano and micro particles, in particular Hydroxyapatite, Brushite, Monetite and Mg-doped β-Tricalcium phosphate have been synthesized. Two applications of the synthesized Calcium phosphates are reported, both based on the drug delivery concept. Hydroxyapatite nanocrystals were used to adsorbe and retain on their surface anticancer drugs based on a Platinum complex, and release them in response to a pH variation.
Phytotherapics active elements have been stabilized by physisorption on Calcium phosphates particles surface. The administration of the obtained suspensions shows good results in terms of plant’s healing, using a lower amount of phytotherapic elements compared to the commercial products.In questa tesi sono riportate sintesi e caratterizzazione di nano-micro particelle di materiale cristallino inorganico, e quattro loro applicazioni. Le particelle inorganiche sono state preparate seguendo due criteri principali: i) le proprietà chimico-fisiche delle particelle devono essere ottimizzate in funzione dell’applicazione; ii) sintesi e applicazione devono essere basate su procedure semplici, con basso impatto ambientale ed economicamente sostenibili. In particolare, nano particelle di Titanio biossido sono state sintetizzate tramite reazione di idrolisi di Titanio(IV) isopropossido in una soluzione di acqua a alcol isopropilico. L’alcol isopropilico presente nella miscela di solventi agisce da agente cappante stabilizzando le nanoparticelle in formazione e dimostra un ruolo nella stabilità della sospensione. Il Titanio biossido prodotto ha rivelato buone proprietà foto catalitiche senza bisogno di ulteriori trattamenti termici. Il Titanio biossido foto attivo è stato applicato con buoni risultati nell’abbattimento di NOx dalle emissioni di uno stabilimento e come strato autopulente su dei pannelli fotovoltaici. Sono state sintetizzate nano e micro particelle di calcio fosfati cristallini, nello specifico Idrossiapatite, Brushite, Monetite and β-Tricalcio fosfato Mg-sostituito. Ne sono riportate due applicazioni, entrambe basate sul concetto di drug delivery. Nanocristalli di Idrossiapatite sono stati utilizzati per adsorbire e ritenere sulla loro superficie farmaci chemioterapici basati su complessi di Platino, e successivamente rilasciare il farmaco in risposta ad una variazione di pH. Alcuni principi attivi fitoterapici sono stai stabilizzati tramite fisisorbimento sulla superficie di particelle di Calcio fosfati in sospensione. La loro applicazione ha dimostrato buoni risultati curativi sulle piante, utilizzando quantitativi di principio attivo molto ridotti rispetto ai prodotti commerciali.
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D'Amen, Eros <1985>. "Synthesis and Characterization of Functional Inorganic Nano-Micro Particles and their Role in Innovative Practical Applications." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7622/.
Повний текст джерелаАнотація:
In this thesis, the synthesis of nano-micro particles of crystalline inorganic materials and four different applications involving their use, are presented . Inorganic particles have been synthesized following two main criteria: i) the particle’s dimensions, specific surface area and crystalline phase of the product have been optimized for the practical application; ii) both the synthesis and application should be based on a simple procedure, environmental low impact, economical affordability.
In particular, Titanium dioxide nanoparticles have been synthesized by sol-gel hydrolysis of Titanium(IV) isopropoxide in an isopropyl alcohol/water solution. The isopropyl alcohol contained in the solvent mixture act as a capping agent stabilizing the forming nanometric particles, and play also a role in the suspension stability. Synthesized Titanium dioxide reveals good photocatalytic properties directly as synthesized, without needing further thermal treatment. Photoactive Titanium dioxide have been used for NOx pollutants abatement on waste gases produced by a working plant and as self-cleaning coating on photovoltaic Silicon panels, showing good results.
Crystalline calcium phosphate nano and micro particles, in particular Hydroxyapatite, Brushite, Monetite and Mg-doped β-Tricalcium phosphate have been synthesized. Two applications of the synthesized Calcium phosphates are reported, both based on the drug delivery concept. Hydroxyapatite nanocrystals were used to adsorbe and retain on their surface anticancer drugs based on a Platinum complex, and release them in response to a pH variation.
Phytotherapics active elements have been stabilized by physisorption on Calcium phosphates particles surface. The administration of the obtained suspensions shows good results in terms of plant’s healing, using a lower amount of phytotherapic elements compared to the commercial products.In questa tesi sono riportate sintesi e caratterizzazione di nano-micro particelle di materiale cristallino inorganico, e quattro loro applicazioni. Le particelle inorganiche sono state preparate seguendo due criteri principali: i) le proprietà chimico-fisiche delle particelle devono essere ottimizzate in funzione dell’applicazione; ii) sintesi e applicazione devono essere basate su procedure semplici, con basso impatto ambientale ed economicamente sostenibili. In particolare, nano particelle di Titanio biossido sono state sintetizzate tramite reazione di idrolisi di Titanio(IV) isopropossido in una soluzione di acqua a alcol isopropilico. L’alcol isopropilico presente nella miscela di solventi agisce da agente cappante stabilizzando le nanoparticelle in formazione e dimostra un ruolo nella stabilità della sospensione. Il Titanio biossido prodotto ha rivelato buone proprietà foto catalitiche senza bisogno di ulteriori trattamenti termici. Il Titanio biossido foto attivo è stato applicato con buoni risultati nell’abbattimento di NOx dalle emissioni di uno stabilimento e come strato autopulente su dei pannelli fotovoltaici. Sono state sintetizzate nano e micro particelle di calcio fosfati cristallini, nello specifico Idrossiapatite, Brushite, Monetite and β-Tricalcio fosfato Mg-sostituito. Ne sono riportate due applicazioni, entrambe basate sul concetto di drug delivery. Nanocristalli di Idrossiapatite sono stati utilizzati per adsorbire e ritenere sulla loro superficie farmaci chemioterapici basati su complessi di Platino, e successivamente rilasciare il farmaco in risposta ad una variazione di pH. Alcuni principi attivi fitoterapici sono stai stabilizzati tramite fisisorbimento sulla superficie di particelle di Calcio fosfati in sospensione. La loro applicazione ha dimostrato buoni risultati curativi sulle piante, utilizzando quantitativi di principio attivo molto ridotti rispetto ai prodotti commerciali.
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Alfinaikh, Reem. "Preparation and Characterization of Poly(Ethylene Oxide)(MW 35K and 100K)/ Silica Nanoparticle Composites." DigitalCommons@Robert W. Woodruff Library, Atlanta University Center, 2017. http://digitalcommons.auctr.edu/cauetds/109.
Повний текст джерелаАнотація:
In recent years, polymer-inorganic nanoparticle compositions have been a subject of considerable interest in order to achieve desired chemical, physical properties and mechanical properties. In this study a polymer nanocomposites have been prepared by incorporating silica nanoparticles (~20 nm) as fillers into poly(ethylene oxide) matrix. The composites of poly(ethylene oxide) and silica nanoparticles were prepared by solution blending. The product composites were powders. The thermal properties of the composites were investigated using the Differential Scanning Calorimetry. The Nuclear Magnetic Resonance (13C solid state, T1ρ), Atomic Force Microscopy, X-ray diffraction and Fourier Transform Infrared Spectroscopy were used to investigate the effect of the nanoparticles on the polymer matrix. The results suggest that the silica nanoparticles were reasonably well dispersed in the PEO 35K. The dispersion was accompanied by slightly reduced the crystallinity. However, with increasing the SiO2 nanoparticles the aggregation Phenomenon appears. Moreover, with increase in the MW of the PEO to 100K the dispersion of the nanoparticles decreased and aggregation phenomenon is observed even at lower of SiO2 contents.
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Cherednik, Avital, Anders Abrahamsson, and Bjarne Falk. "Oxygen Reduction Catalysts in Alkaline Electrolyte." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277116.
Повний текст джерелаАнотація:
Alkaline fuel cells are a promising technology, with their sturdy design and many applications they are held back mostly by their cost. By introducing a catalyst, the activation energy of the cell can be reduced to an overcomable amount. Unfortunately, due to the high cost and sparse availability of the most used catalyst metal today, platinum, it has become apparent that a new suitable catalyst must be found in order to make the fuel cells economically feasible. Silver and palladium have been proposed as promising alternatives, sharing a majority of the traits but with a fraction of the cost. The original aim of this project was to study the performance of electrodes in an alkaline electrolyte loaded with different ratios of palladium and silver. However, due to the COVID-19 situation the project was not able to be completed and the aim of the project changed. The new aim was divided into two parts. The first one being to study how the initial concentration of silver ions affects the size of the obtained particles. This was achieved by a radiolysis-based method of synthesis in an aqueous solution. The second aim was to study the performance of the electrodes loaded with different amounts of silver and different average particle size. However, this part was not possible to conduct either. Therefore, results from a previous study performed by I. L. Soroka et al. was used for discussion. The results point towards a lower initial concentration achieving a smaller average particle size and a lower loading of catalyst on the electrode can be compensated by a smaller average particle size of the catalyst.
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Pryor, Donald Edward. "Synthesis and Bioactivity Studies of Nanoparticles Based on Simple Inorganic and Coordination Gallium Compounds as Cellular Delivering Vehicles of Ga(III) Ions for Potential Therapeutic Applications." Kent State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=kent1543554532063877.
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Chou, Berryinne. "Nano-Scale Modified Inorganic/Organic Hybrid Materials as Proton Conductors." Case Western Reserve University School of Graduate Studies / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=case1144419661.
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Wu, cheng-han, and 吳承翰. "The modification of the organic resist after incorperate inorganic nano particles." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/74660578474600974542.
Повний текст джерелаАнотація:
碩士國立中央大學
化學工程與材料工程研究所
90
ABSTRACT In this paper, we characterize DES-1010 E-Beam resist for high-resolution electron beam lithography from low to high dose energy. Results indicate the DSE-1010 is very high sensitive for high throughput E-Beam lithography applications. In general, at optimum condition, the trench-width can be easily down to 80 nm. When the dose increased, the character of DES-1010 had been changed from positive to negative, the change of chemical structure was observed by FTIR. It could get 500 nm trench also. Many factors influence performance of resists such as soft bake, post exposure bake, and exposure dose, which are discussed and optimize.
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Lin, Yu-Yan, and 林育彥. "Precision Coating Die Design for Suspensions: Organic/Inorganic Particles in Micro/Nano Scale." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/67278430716893472625.
Повний текст джерелаАнотація:
碩士國立清華大學
化學工程學系
98
Coating solutions with a significant amount of solid particles added are not unusual for many industrial applications. Products such as backlit films, diffusers for LCD panels, CIGS solar cells are just a few examples. Two issues arise for delivering such solutions, i.e. the solutions may have yield stress and particle sedimentations may appear in the manifolds for conventional coat-hanger or T-dies. There are experimental evidences that clearly indicate that particle sedimentation can be serious in the manifold on the die. A die that can maintain relatively high shear ratse in the manifold can improve this precipitation problem. The purpose of this research is to design a coat-hanger die which has a shallow manifold with rectangular cross-sectional area. Therefore, flow field with high shear rate can be achieved. Due to the high cost of traditional coat-hanger die, this research also propsed a new idea-using two easily-replaced shims to make a die, this design can effectively reduce the cost of manufacture. Both the theoretical modeling and the experimental verifications were carried out for die design. The coating solutions were assumed to obey the Bingham viscoplastic model. A mathematical model based on the 1D lubrication approximation, 2D Hele-Shaw flow and 3D flow simulations were developed to predict the performance of the new design, the computer-aided solutions by the finite difference (FDM) and the finite element method (FEM) could be obtain. The performance of the design based on the lubrication approach is in agreement with the 3D simulation and experimental results, therefore the new die can develop uniform flow and no stagnent zone can exist in the end of the manifold, so that the sedimentation can be avoided. We also compared the sedimentation and uniformity of our design to a commercial T-die and fishtail die experimentally, the results indicated the performance of our design is excellent, sedimentation and uniformity problem appeared in both the T die and fishtail die. The design of our research can be applied to the wet coating process of CIGS solar cell & TCO films.
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Liu, Chia-Hong, and 劉家宏. "Adding Inorganic Nano-Silica Particles into the Organic PS Phase of PS-b-PMMA Diblock Copolymer." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/76845319101442466825.
Повний текст джерелаАнотація:
碩士國立中正大學
化學工程所
97
Using the self-assembly characteristic of diblock copolymer and its unique phase separation morphology, we blend the surface modified nano-silica into the diblock copolymer in order to disperse these nano-particles selectively and uniformly in polymer film. In this study, the diblock copolymer (PS-b-PMMA) and short chain PS capped with coupling agent 3-CPTMOS were prepared firstly via anionic polymerization. Then the capped PS was bonded with nano-SiO2 by the sol-gel reaction. Finally, various amounts of PS-SiO2 was blended into PS-b-PMMA and spin-casted to films. After annealing the morphology of these films was thoroughly studied by AFM and SEM.
Книги з теми "Inorganic Nano-particles"
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Rapid production of micro- and nano-particles using superficial water. Heidelberg: Springer, 2010.
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Gold Clusters, Colloids and Nano-Particles I. Springer, 2014.
Знайти повний текст джерелаЧастини книг з теми "Inorganic Nano-particles"
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Tadaki, T., T. Kinoshita, Y. Nakata, T. Ohkubo, and Y. Hirotsu. "Monte Carlo simulation of order-disorder transformation in nano particles of Cu3Au alloy." In Small Particles and Inorganic Clusters, 493–95. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-642-60854-4_118.
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Hasegawa, H., N. Satoh, K. Tsujii, and K. Kimura. "Fractal analysis of the coalescence process of Au nano-meter particles dispersed in 2-propanol." In Small Particles and Inorganic Clusters, 775–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76178-2_185.
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Tenne, R. "Inorganic Nanotubes and Fullerene-Like Nano-particles: From the Lab to Applications." In NATO Science for Peace and Security Series B: Physics and Biophysics, 299–302. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7003-4_27.
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Zheng, Hua De, Ying Jun Wang, Chun Rong Yang, Xiao Feng Chen, and Na Ru Zhao. "Investigation on the Porous Biomaterial for Bone Reconstruction with Addition of Bio-Mimetic Nano-Sized Inorganic Particles." In Key Engineering Materials, 1534–37. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-410-3.1534.
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Tamura, Ryo, and Masaru Tsukada. "Conductance of nano-tube junctions and its scaling law." In Small Particles and Inorganic Clusters, 432–35. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-642-60854-4_102.
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"LIQUID-CRYSTALLINE INORGANIC NANO AND FINE PARTICLES." In Nanoparticle Technology Handbook, 509–15. Elsevier, 2008. http://dx.doi.org/10.1016/b978-044453122-3.50033-7.
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Kanie, Kiyoshi, and Atsushi Muramatsu. "Liquid-crystalline inorganic nano and fine particles." In Nanoparticle Technology Handbook, 509–15. Elsevier, 2012. http://dx.doi.org/10.1016/b978-0-444-56336-1.50036-9.
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Kanie, Kiyoshi, and Atsushi Muramatsu. "Liquid–Crystalline Inorganic Nano- and Fine Particles." In Nanoparticle Technology Handbook, 731–37. Elsevier, 2018. http://dx.doi.org/10.1016/b978-0-444-64110-6.00069-x.
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Chole, Pranjali, Camil Rex, Sabia Imran, Kasi Gopinath, and Lokesh Ravi. "Nano-particles for Microbial Growth and Drug Delivery." In Frontiers in Antimicrobial Agents, 273–303. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815080056123020013.
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The development of drug resistance in microorganisms has become one of the greatest global health challenges, as microorganisms tend to adapt to organic drugs via several mechanisms. Multi-drug resistance (MDR) in microorganisms not only increases the mortality rate of humans, but clinicians are also running out of options to treat MDR infections. A solution to this problem could be found in inorganic chemistry, where metal elements are converted in to nanoparticles that function as both drug and drug delivery agents to control microbial growth and overcome the resistance imposed on organic drugs. Nanoparticles have a high surface area to volume ratio, making them highly reactive with selective types of molecules such as bacterial/fungal cell walls. This makes nanoparticles an effective alternative to traditional chemical drugs. The development of resistance in the case of nanoparticles is almost nil. Nanoparticles of various elements have proven to be effective anti-microbial agents with several other pharmaceutical activities. Nanoparticles are also effective drug delivery agents that increase the bioavailability of drugs, enhance bioactivity, and increase drug flux into and through skin and biofilms. This chapter provides a compilation of various types of organic and inorganic nanoparticles, with their bioactivity, mode of action, synthesis, side effects, and mode of administration. Different types of nanoparticle-based drug delivery systems are summarised in this chapter, along with a summary of their organ-specific drug delivery. This report can provide a detailed understanding of nanoparticles in anti-microbial applications and aid in R&D to yield future nanomedicine.
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Bhatt, Rakesh, and Sandeep Gupta. "Nano Particles and Their Mode of Action in Environment." In Advances in Environmental Engineering and Green Technologies, 212–19. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-3126-5.ch013.
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Nano particles are particles that exist on a nanometer scale. Nanoparticles exist in our surrounding either naturally or created by human activities. As per Commission of European Union (2011), a nano-object needs only one of its characteristic dimensions to be in the range of 1-100nm to be classed as a nanoparticle even if its other dimensions are outside that range. Nanoparticles have revolutionized the world through the introduction of a unique class of material and consumer products in many fields due to production of innovative materials and devices. Despite their unique benefits and utility in daily activities, this could result in undesirable changes in the environment and affect the workplace. Carbon-based nanoparticles, oxides of metals, and natural inorganic compounds can have biological effects on the environment and human health. This chapter deals with the nanoparticles and their mode of action in the environment.
Тези доповідей конференцій з теми "Inorganic Nano-particles"
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Liu, Chia-Hsin, Chyung Ay, Jo-Chuan Kan, and Maw-Tien Lee. "Improving greenhouse cladding by the additives of inorganic nano-particles." In 2018 IEEE International Conference on Applied System Innovation (ICASI). IEEE, 2018. http://dx.doi.org/10.1109/icasi.2018.8394346.
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Zhu, Yimin, Ionel Stefan, Baixin Qian, Jay Goldman, Jurgen Hofler, and Jason Hartlove. "Inorganic-Nano-Fiber-Based Catalyst for Hydrogen Fuel Cells With Superior Performance." In ASME 2009 7th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2009. http://dx.doi.org/10.1115/fuelcell2009-85130.
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In this paper we report on a novel, cost-effective fuel cell catalyst solution that meets performance as well as reliability goals set forth by the Department Of Energy for transportation applications for 2010. Our fuel cell catalyst technology is based on an inorganic, conductive nano-fiber network decorated with Pt or Pt-alloy nano-particles. The nano-fibers have diameters in the 10s of nanometers and aspect ratios of ∼100:1. The resulting large surface area, high chemical activity, and efficient electron and proton transport in the membrane electrode assembly (MEA) allow for ultra-low material loading at very high performance. Specifically, with a total loading (anode and cathode) of only 0.2mg/cm2, we have demonstrated a performance of 0.25g/kW at 0.65V exceeding the 2010 DOE goal of 0.3g/kW. We also met the DOE target for power density of 0.25 W/cm2 at 0.8V. Very important for practical applications, the initial reliability tests show that our inorganic nano-fiber-based catalysts have a lifetime performance far superior to carbon-based approaches.
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Lee, Minyung. "Nonlinear Optical Properties of Au Nanocrystals Embedded in Silicate Thin Films." In Nonlinear Optics: Materials, Fundamentals and Applications. Washington, D.C.: Optica Publishing Group, 1996. http://dx.doi.org/10.1364/nlo.1996.nthe.3.
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A lot of nanometer-sized metal particles exhibit high optical nonlinearity and fast time response in the surface plasmon absorption region,1 so they have potential application in nonlinear optical devices in the future. Especially, gold nano crystals were most intensively studied and their linear and nonlinear optical properties are relatively well known.2 However, preparation techniques for gold nano particles in inorganic oxide glass are not well established yet and controlling the nanocrystal size has to be elaborated for the systematic study on the nonlinear optical properties of metal nanocrystals.
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Akinyede, Oladapo, Ram Mohan, Ajit Kelkar, and Jag Sankar. "Effect of Grafting Methodology of Nano-Particle Reinforcement on the Performance of Structural Hybrid Composite." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-13783.
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Inclusion of nano-sized alumina by the surface treatment of S2 fiberglass (fiber modification) or ultrasonically exfoliated in epoxy resin system (resin modification) has been shown to provide epoxy-fiberglass hybrid composite systems with changes in their mechanical/ damage behavior under static tensile loading conditions. Integration of alumina nano-particles in epoxy-S2 fiberglass to form hybrid composites has not only shown improvements in the material properties, but also changes in the failure mechanism of the material system. This phenomenon is influenced by the changes in constituent interaction and its load transfer mechanism. In the processing of these hybrids composite systems, alumina nano-particles (sized at 110nm) are functionalized and grafted into epoxy composite material system during material processing via resin solution treatment and fabric surface treatment. These alumina embedding methodologies to form hybrid composites employed are the resin modification and fiber modification in conjunction with the conventional vacuum assisted resin transfer molding (VARTM) process for the manufacture of composite laminates. The chemical bonding and adhesion between the inorganic alumina and the organic resin is also enhanced via the functional treatment of the alumina particles with a coupling agent in the form of tris-2-methyoxyethoxy vinylsilane- T2MEVS (silane coupling agent). Processing methodologies are used to fabricate particulate reinforcement for various (<5%wt) compositions. Performance evaluation is carried to study the effect of the nano-particulate alumina on mechanical properties. Thermo-physical properties changes caused by particulate inclusion in hybrid material matrix phase are studied via Differential Scanning Calorimetry (DSC) and are also discussed.
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Khalifeh, Mahmoud, Saeed Salehi, Aleksandra Jamrozik, Raymos Kimanzi, and Saeid Abdollahpour. "Nano-Modified Rock-Based Geopolymers As Supplement to Portland Cement for Oil Well Cementing." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-95380.
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Abstract Geopolymers being inorganic polymers, pumpable, gaining compressive strength, bonding to steel and formation, and showing durability at downhole conditions make them a possible barrier material. However, having low tensile strength, and being contaminated severely with water-based fluids are the challenges to be mitigated. These challenges have also been observed in recently developed rock-based geopolymers. Different researchers have suggested the application of nanoparticles as additive to geopolymers for increasing the mechanical properties. Of these one could list nanosilica, nano titanium di-oxide, nanocarbon graphene, carbon nanotubes, and nano aluminium. However, their reasoning for utilization of these nano particles originated from their effect on properties of Portland cement. In this study, the effect of nano titanium di-oxide and nanocarbon graphene is considered on the rock-based geopolymers. The two main criteria for selection of these materials are in-house availability, and the published prior art. The effect of the nano materials on rheological behavior, mechanical strength and microstructure of the geopolymers are the main investigated parameters. The obtained result shows that the nano materials improve the pumpability of the geopolymers but not improving the tensile strength effectively.
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Hussain, Farzana, Derrick Dean, and Anwarul Haque. "Structures and Characterization of Organoclay-Epoxy-Vinylester Nanocomposites." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33552.
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The field of polymer-clay nanocomposites has attracted considerable attention as a method of enhancing polymer properties and extending their utility. Layered silicates dispersed as a reinforcing phase in a polymer matrix are one of the most important forms of such inorganic-organic nanocomposites, making them the subject of intense research. We have recently prepared several thermoset-based nanocomposites with improved thermal and mechanical properties. This paper is primarily focused in studying the effects of nano clay particles such as montmorillonite on improving mechanical and thermal properties of the polymer matrix composite. Epoxy and vinyl ester nanocomposites were prepared by adding different weight percentages (0.5%, 1%, 2%, 5% and 10%) of montmorillonite nano clay particles to epoxy and vinyl ester matrices. The results show significant improvements in mechanical and thermal properties of the nanostructured materials with low loading of organo silicates. Thermal property measurement includes dynamic mechanical analysis (DMA). Mechanical properties such as flexural strength and flexural modulus of polymer matrix were improved in nano structured materials owing to their unique phase morphology and improved interfacial interactions. Molecular dispersion of the layered silicate within the cross-linked matrix was verified using Wide Angle X-Ray Diffraction (WAXD) and Transmission Electron Microscopy (TEM) revealing the intercalated nanocomposites were formed.
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Hsu, Yi, and Yingtao Liu. "Investigation of Hydrophobic Nanoporous Particle Liquids for Impact Protection." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-67342.
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Recently, the development of hydrophobic nanoporous liquids has drawn increased attention, especially for the applications of energy absorption and impact protection. Although significant amount of research has been conducted to synthesis and characterize materials to protect structures from impact damage, the tradition methods needed to convert kinetic energy to other forms, such as heat and cell bulking, during impact protection. Due to their high energy absorption efficiency, hydrophobic nanoporous particle liquids are one of the most attractive impact mitigation materials. When impacted, such particles directly trap liquid molecules inside the non-wetting surface of nanopores in the particles. The captured impact energy is simply stored temporarily and isolated from the original energy transmission path. In this paper we investigate the energy absorption efficiency of multiple nanoporous particles and liquids. Inorganic nanoporous silica nanoparticles are investigated as the hydrophobic materials. Nanoporous particle liquids are prepared by dispersing the nano-materials in deionized water. The effects of small molecular promoters, such as methanol and ethanol, on energy absorption efficiency, are studied in this paper. The energy absorption efficiency of these liquids is experimentally characterized using an Instron mechanical testing frame and in-house develop stainless steel hydraulic cylinder system under quasi-static load conditions.
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Visileanu, Emilia, Marian Catalin Grosu, Paul Tiberiu Miclea, Korinna Altmann, and Dirk Brossell. "Methods for the collection and characterization of airborne particles in the textile industry." In 5th International Conference on Human Systems Engineering and Design: Future Trends and Applications (IHSED 2023). AHFE International, 2023. http://dx.doi.org/10.54941/ahfe1004132.
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Airborne particulate matter is one of the main air pollutants. Their impact on mortality, and the occurrence of pulmonary and cardiovascular complications, have been the subject of numerous studies. Airborne particles are complex mixtures of organic and inorganic substances from different sources of particle emissions. Particulate Matter (PM) particles are classified according to their aerodynamic diameter expressed in µm and can vary from coarse (PM 10) to fine (less than PM 2.5). These diameter considerations are fundamental because they condition the penetration of particles into the bronchopulmonary system and the body. In recent years, there has been an interest in so-called “ultra-fine” particles, with a diameter of 0.1 µm (or 100 nm), or PM 0.1. They are nanoparticles and their impact on human health is not yet clear.With more than 1.5 million employees, textiles and clothing is a diverse sector that plays an important role in the European manufacturing industry, producing a turnover of €162 billion.An important component of the solid particles that generate air pollution in the textile industry is microplastics (MP) and nano plastics (NP), which also include microfibers (<5mm) and nanofibers (<100 nm), respectively. The particles released into the air during fiber and yarn processing range from 1 µg/m3 to 50 µg/m3.The paper presents the results of the determination of indoor and outdoor air concentration levels in textile companies, to identify the areas with the highest concentration level, by using an online recording system such as the Laser Aerosol Spectrometer MINI LAS model 11-E. The total concentration level TSP (µg/m3), the fractions PM 10(µg/m3), PM 2.5(µg/m3), PM1(µg/m3), as well as the total number of particles TC (1/l), were shown. It was noted that TSP is approximately at the same level both indoors and outdoors, but the fractions of PM10, PM2.5, and PM1 have much higher values indoors than outdoors with possible consequences on workers' health.The next step was the collection of fibers, namely micro and nano plastic particles from the vicinity of the workplaces of polyester, polyamide, and polypropylene fibers processing units in the textile industry in Romania, to obtain a sufficient quantity for laboratory analysis to determine the size and shape of the particles as well as their chemical composition. Two types of pumps were used, differentiated by their operating parameters: TECORA SKYPOST with airflow of 38 l/min and GILAIRPLUS with airflow 2l/min. Filters made of different materials with different diameters and pore sizes were used, namely: quartz filters (ø 47 mm, and ø 37 mm) on a TECORA SKYPOST type pump, polycarbonate nucleopore coated with a gold membrane (ø 25 mm) and silica filter (ø 9 mm) on GILAIRPLUS type pump.Using descriptive statistics, the calculation of correlation coefficients highlighted a strong correlation between the variables: "Collected mass/ Air concentration" and "Collected mass/ Air volume" for all diameters of the filters.The highest collected particle volume, determined by weighing the filters before and after collection, was obtained with the quartz filters (ø 47 mm) at an airflow of 38 l/min. The particles collected (polyester, polyamide, polypropylene) in the first stage were analyzed by SEM and thermogravimetric and it was found that the quartz filters absorbed the particles inside, with very few remaining on the surface. Thus no known methods can be used to perform analysis for particles collected on quartz filters. The number of particles on the filters was insufficient for analysis either because of the collection parameters used or because of the loss of particles during transport. As a result, in the next step, the use of 9 mm Si filters using the GILAIRPLUS pump at an airflow rate of 2l/min was chosen.To improve the transport conditions and avoid the loss of the particles and keep them on the surface of the filters, two methods were applied:- after weighing the filters were reintroduced into the collection pump holder;- a filtration system for airborne micro-nano plastics was designed and manufactured to selectively collect and transport PM10 and PM1 particles collected on SI filters.In both cases, SEM, Raman mapping, and GS-MS microscopy were used for analysis.Several times more PM10 than PM1 (74.5µg compared to 12.5 µg) was found. In all cases, both particles and fibers showed the same Raman fingerprint.The GS-MS analyses showed some contamination of the workspaces with particles other than the processed fibers. The presence of non-notifiable substances was also observed.The most viable filters are Si filters with a pore size of 10 microns to 1 micron and the use of the selected collection and transport filter system. In the following a filter system will be applied for collection on Au membrane-coated polycarbonate filters.
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Shin, Donghyun, Byeongnam Jo, Hyun-eun Kwak, and Debjyoti Banerjee. "Investigation of High Temperature Nanofluids for Solar Thermal Power Conversion and Storage Applications." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-23296.
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The aim of this study is to investigate the enhancement of thermal properties of various high temperature nanofluids for solar thermal energy storage application. In concentrating solar power (CSP) systems, the thermo-physical properties of the heat transfer fluids (HTF) and the thermal energy storage (TES) materials are key to enhancing the overall system efficiency. Molten salts, such as alkali nitrates, alkali carbonates, or eutectics are considered as alternatives to conventional HTF to extend the capabilities of CSP. However, there is limited usage of molten salt eutectics as the HTF material, since the heat capacity of the molten salts are lower than that of conventional HTF. Nanofluid is a mixture of a solvent and nanoparticles. Well dispersed nanoparticles can be used to enhance thermo-physical properties of HTF. In this study, silica (SiO2) and alumina (Al2O3) nanoparticles as well as carbon nanotubes (CNT) were dispersed into a molten salt and a commercially available HTF. The specific heat capacity of the nanofluids were measured and applicability of such nanofluid materials for solar thermal storage applications were explored. Measurements performed using the carbonate eutectics and commercial HTF that are doped with inorganic and organic nano-particles show specific heat capacity enhancements exceeding 5–20% at concentrations of 0.05% to 2.0% by weight. Dimensional analyses and computer simulations were performed to predict the enhancement of thermal properties of the nanofluids. The computational studies were performed using Molecular Dynamics (MD) simulations.
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Kang, Ki Moon, Hyo-Won Kim, Il-Wun Shim, and Ho-Young Kwak. "Syntheses of Specialty Nanomaterials at the Multibubble Sonoluminescence Condition." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-68320.
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In recent years, a large number of nano-size semiconductors have been investigated for their potential applications in photovoltaic cells, optical sensor devices, and photocatalysts [1, 2, 3]. Nano-size semiconductor particles have many interesting properties due mainly to their size-dependent electronic and optical properties. Appropriately, many speciality of nanomaterials such as CdS and ZnS semiconductor particles, and other metal oxides such as ZnO and lithium-titanate oxide (LTO) have been prepared. However, most of them were prepared with toxic reactants and/or complex multistep reaction processes. Particularly, it is quite difficult to produce LTO nanoparticles, since it typically requires wearisome conditions such as very high temperature over 1000 °C, long producing times, and so on. To overcome such problems, various core/shell type nanocrystals were prepared through different methods such as the hydrothermal synthetic method, microwave, and sonochemistry. Also many coating methods on inorganic oxide nanoparticles were tried for the preparations of various core-shell type nanocrystals. Sonoluminescence (SL) is a light emission phenomenon associated with the catastrophic collapse of a gas bubble oscillating under an ultrasonic field [4]. Light emission of single bubble sonoluminescence (SBSL) is characterized by picosecond flashes of the broad band spectrum extending to the ultraviolet [5, 6]. The bubble wall acceleration has been found to exceed 1011 g at the moment of bubble collapse. Recently observed results of the peak temperature and pressure from the sonoluminescing gas bubble in sulfuric acid solutions [9] were accurately predicted by the hydrodynamic theory for sonoluminescence phenomena [7, 10, 11, 12], which provides a clue for understanding sonochemical reactions inside the bubble and liquid layer adjacent to the bubble wall. Sonochemistry involves an application of sonoluminescence. The intense local heating and high pressure inside the bubbles and liquid adjacent bubble wall from such collapse can give rise to unusual effects in chemical reactions. The estimated temperature and pressure in the liquid zone around the collapsing bubble with equilibrium radius 5 μm, an average radius of bubbles generated in a sonochemical reactor at a driving frequency of 20 kHz with an input power of 179 W, is about 1000 °C and 500 atm, respectively. At the proper condition, a lot of transient bubbles are generated and collapse synchronistically to emit blue light when high power ultrasound is applied to liquid, and it is called multibubble sonoluminescence (MBSL). Figure 1 shows an experimental apparatus for MBSL with a cylindrical quartz cell, into which a 5 mm diameter titanium horn (Misonix XL2020, USA) is inserted [13]. The MBSL facilitates the transient supercritical state [14].in the liquid layer where rapid chemical reactions can take place. In fact, methylene blue (MB), which is one of a number of typical textile dyestuffs, was degraded very fast at the MBSL condition while MB does not degrade under simple ultrasonic irradiation [13]. MBSL has been proven to be a useful technique to make novel materials with unusual properties. In our study, various metal oxides such as ZnO powder [15], used as a primary reinforcing filler for elastomer, homogeneous Li4Ti5O12 nanoparticles [16], used for electrode materials, and core/shell nanoparticles such as CdS coating on TiO2 nanoparticles [17] and ZnS coating on TiO2 nanoparticles [18], which are very likely to be useful for the development of inorganic dye-sensitized solar cells, were synthesized through a one pot reaction under the MBSL condition. Figure 2 shows the XRD pattern of ZnO nanoparticles synthesized from zinc acetate dehydrate (Zn(CH3CO2)2 · 2H2O, 99.999%, Aldrich) in various alcohol solutions with sodium hydroxide (NaOH, 99.99%, Aldrich) at the MBSL condition. The XRD patterns of all powers indicate hexagonal zincite. The XRD pattern for the ZnO nanoparticles synthesized is similar to the ZnO powder produced by a modified sol-gel process and subsequent heat treatment at about 600 °C [19] as shown in Fig.3. The average particle diameter of ZnO powder is about 7 nm. A simple sonochemical method for producing homogeneous LTO nanoparticles, as shown schematically in Fig. 4. First, LiOH and TiO2 nanoparticles were used to prepare LiOH-coated TiO2 nanoparticles as shown in Fig.5. Second, the resulting nanoparticles were thermally treated at 500 °C for 1 hour to prepare LTO nanoparticles. Figure 6 shows a high resolution transmission electron microscope image of LTO nanoparticles having an average grain size of 30–40 nm. All the nanoparticle synthesized are very pure in phase and quite homogeneous in their size and shape. Recently we succeeded in synthesizing a supported nickel catalyst such as Ni/Al2sO3, MgO/Al2O3 and LaAlO3, which turned out to be effective for methane decomposition [20]. Sonochemistry may provide a new way to more rapidly synthesize many specialty nanoparticles with less waste [21]. This clean technology enables the preparation of new materials such as colloids, amorphous particles [22], and various alloys.