Journal articles: 'Sol-gel approach'

1

Wu, Hwai Chung, and Peijiang Sun. "On sol-gel approach to geopolymerisation." International Journal of Environmental Engineering 3, no. 2 (2011): 103. http://dx.doi.org/10.1504/ijee.2011.039449.

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Belleville, Philippe. "Functional coatings: The sol-gel approach." Comptes Rendus Chimie 13, no. 1-2 (January 2010): 97–105. http://dx.doi.org/10.1016/j.crci.2009.12.005.

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Seddon, A. B., S. N. B. Hodgson, and M. G. Scott. "Sol-gel approach to preparing germanium disulphide." Journal of Materials Science 26, no. 10 (May 1991): 2599–602. http://dx.doi.org/10.1007/bf02387724.

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4

Safaryan, Sofia M., Aleksandr V. Yakovlev, Evgeny A. Pidko, Alexandr V. Vinogradov, and Vladimir V. Vinogradov. "Reversible sol–gel–sol medium for enzymatic optical biosensors." Journal of Materials Chemistry B 5, no. 1 (2017): 85–91. http://dx.doi.org/10.1039/c6tb02559e.

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In this paper we for the first time report a reversible sol–gel–sol approach to obtain optical enzymatic biosensors with improved enzyme stability and good sensitivity by using desktop inkjet printing.

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5

Sacco, Hérica C., Katia J. Ciuffi, Juliana C. Biazzotto, Cesar Mello, Daniela C. de Oliveira, Ednalva A. Vidoto, Otaciro R. Nascimento, Osvaldo A. Serra, and Yassuko Iamamoto. "Ironporphyrins trapped sol–gel glasses: a chemometric approach." Journal of Non-Crystalline Solids 284, no. 1-3 (May 2001): 174–82. http://dx.doi.org/10.1016/s0022-3093(01)00398-2.

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6

Zhao, Lan, Dao Li Zhang, Gang Du, Jian Mei Xu, and Dong Xiang Zhou. "The Properties of Antimony-Doped Tin Oxide Thin Films by the Sol-Gel Approach." Key Engineering Materials 280-283 (February 2007): 831–34. http://dx.doi.org/10.4028/www.scientific.net/kem.280-283.831.

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Antimony-doped tin oxide thin films have a range of technical applications as conductive coatings, and sol-gel processing seems to offer some advantages over other coating techniques. In this study, the sol was prepared by sol-gel approach from SnO2·H2O and SbCl3 in alcohol. It was found that the heat-treatment temperature and doping level have strong influences on the microstructure and composition of Sb: SnO2 films. The SnO2 crystals exist mainly as tetragonal rutile structure. The optimum heat-treatment temperature is about 450 ~ 500°C, and the film is composed with nanocrystals and nano-pores. Microstructure and the electrical behaviors of Sb-doped SnO2 thin films derived by sol-gel process were investigated.

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7

Duan, Zhiying, Zhichao Wang, Chufeng Sun, Lianbiao Zhao, and Yanbin Wang. "Facile synthesis of AC@TiO2-S with improved visible light photocatalytic activity and recyclability through a controllable sol–gel approach." RSC Advances 5, no. 70 (2015): 56808–14. http://dx.doi.org/10.1039/c5ra07020a.

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AC@TiO₂-S prepared by controlled sol–gel approach exhibits improved photocatalytic activity over AC@TiO₂-G prepared by sol–gel approach for the degradation of methyl orange under visible light irradiation and has excellent recyclability.

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Lim, Eun Seob, Min-Cheol Lim, Kisang Park, Gaeul Lee, Jeong-A. Lim, Min-Ah Woo, Nari Lee, Sung-Wook Choi, and Hyun-Joo Chang. "Selective Binding and Elution of Aptamers for Pesticides Based on Sol-Gel-Coated Nanoporous Anodized Aluminum Oxide Membrane." Nanomaterials 10, no. 8 (August 5, 2020): 1533. http://dx.doi.org/10.3390/nano10081533.

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Sol-gel-based mesopores allow the entry of target small molecules retained in their cavity and aptamers to bind to target molecules. Herein, sol-gel-based materials are applied to screen-selective aptamers for small molecules, such as pesticides. To enhance the efficiency of aptamer screening using a sol-gel, it is necessary to increase the binding surface. In this study, we applied the sol-gel to an anodized aluminum oxide (AAO) membrane, and the morphological features were observed via electron microscopy after spin coating. The binding and elution processes were conducted and confirmed by fluorescence microscopy and polymerase chain reaction. The sol-gel coating on the AAO membrane formed a hollow nanocolumn structure. A diazinon-binding aptamer was bound to the diazinon-containing sol-gel-coated AAO membrane, and the bound aptamer was effectively retrieved from the sol-gel matrix by thermal elution. As a proof of concept, a sol-gel-coated AAO disc was mounted on the edge of a pipette tip, and the feasibility of the prepared platform for the systematic evolution of ligands by exponential enrichment (SELEX) of the aptamer binding was also confirmed. The proposed approach will be applied to an automated SELEX cycle using an automated dispenser, such as a pipetting robot, in the near future.

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Armelao, Lidia, Davide Barreca, Gregorio Bottaro, Alberto Gasparotto, Eugenio Tondello, Matteo Ferroni, and Stefano Polizzi. "Au/TiO2Nanosystems: A Combined RF-Sputtering/Sol−Gel Approach." Chemistry of Materials 16, no. 17 (August 2004): 3331–38. http://dx.doi.org/10.1021/cm0353308.

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Gado, Emanuela Del, Lucilla de Arcangelis, and Antonio Coniglio. "A percolation dynamic approach to the sol-gel transition." Journal of Physics A: Mathematical and General 31, no. 8 (February 27, 1998): 1901–10. http://dx.doi.org/10.1088/0305-4470/31/8/004.

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11

Riaz, S., and S. Naseem. "Controlled nanostructuring of TiO2 nanoparticles: a sol–gel approach." Journal of Sol-Gel Science and Technology 74, no. 2 (November 5, 2014): 299–309. http://dx.doi.org/10.1007/s10971-014-3557-4.

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12

Gutiérrez-Climente, Raquel, Margaux Clavié, Pascal Dumy, Ahmad Mehdi, and Gilles Subra. "Sol–gel process: the inorganic approach in protein imprinting." Journal of Materials Chemistry B 9, no. 9 (2021): 2155–78. http://dx.doi.org/10.1039/d0tb02941f.

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13

Abebe, Buzuayehu. "Polymer assisted colloidal nanocrystal framework synthesis: sol-gel approach." Materials Research Express 8, no. 12 (December 1, 2021): 125005. http://dx.doi.org/10.1088/2053-1591/ac3e26.

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Abstract The porous colloidal nanocrystal framework material was synthesized by sol-gel assembly followed by a self-propagation procedure. The characteristics of the synthesized nanocrystal were confirmed by advanced instruments. From the DTG analysis, the poly (vinyl alcohol) was completely degraded at 400 °C. The XRD pattern and TEM image confirmed the nanoscale crystallite size of the material. BET and SEM analysis showed the mesoporous type pore size distribution. The predictable compositional analysis was confirmed from EDX, SAED, and XPS compositional analysis. Using the HSAB theory and HRTEM image analysis the formation of local heterojunction between metal oxides was approved.

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Parsa, Mansoureh, Seyed Mohammad Ali Hosseini, Zahra Hassani, and Effat Jamalizadeh. "Corrosion protective properties of coatings doped with inhibitors." Anti-Corrosion Methods and Materials 61, no. 6 (October 28, 2014): 416–22. http://dx.doi.org/10.1108/acmm-07-2013-1281.

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Purpose – The purpose of this paper was to study the corrosion resistance of water-based sol-gel coatings containing titania nanoparticles doped with organic inhibitors for corrosion protection of AA2024 alloy. Design/methodology/approach – The coatings were obtained using tetraethylorthosilicate, 3-glycidoxypropyltrimethoxysilane, titanium (IV) tetrapropoxide and poly(ethylene imine) polymer as cross-linking agents. As corrosions inhibitors, 2-mercaptobenzoxazole and salicylaldoxime were incorporated into the sol-gel for the improvement of the corrosion resistance. The corrosion protection performance of coatings was studied using the potentiodynamic scan and the electrochemical impedance spectroscopy (EIS) methods. Atomic force microscopy was used to investigate surface morphology of the coatings. Findings – The results indicated that doping the sol-gel coatings with inhibitors leads to improvement of the corrosion protection. The comparison of doped coatings confirmed that corrosion protection performance of the sol-gel coatings doped with 2-mercaptobenzoxazole was better than for the sol-gel coatings doped with salicylaldoxime. Also the EIS results verified self-healing effects for the sol-gel coatings doped with 2-mercaptobenzoxazole. Originality/value – This paper indicates 2-mercaptobenzoxazole and salicylaldoxime can be added as corrosion inhibitors to sol-gel coatings to improve their corrosion protective properties for AA2024 alloy.

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15

Ballato, John, Matthew Dejneka, Richard E. Riman, Elias Snitzer, and Weimin Zhou. "Sol-gel synthesis of rare-earth-doped fluoride glass thin films." Journal of Materials Research 11, no. 4 (April 1996): 841–49. http://dx.doi.org/10.1557/jmr.1996.0102.

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This paper describes ZBLA fluoride glass thin films produced via an inexpensive, low-temperature reactive atmosphere sol-gel approach. Luminescence from erbium at 1.55 μm has been observed in x-ray-amorphous doped films deposited on calcium fluoride, polyimide, sapphire, and silicon substrates. Fluorescence studies of the erbium 4S3/2 → 4I13/2 transition, a characteristic emission for a reduced phonon energy host, were conducted for both sol-gel-derived films and conventionally prepared glass rods. The peak intensity observed from the sol-gel films was blue-shifted by 16 nm with a FWHM value approximately half that measured for the melt-quenched rods. Excitation studies indicate that, unlike conventionally prepared glasses, sol-gel materials suffer from nonradiative relaxation of the 4S3/2 excited state to the 4I9/2 level, where subsequent radiative emission to the 4I15/2 ground state occurs. The proposed source of the quenching mechanism are remnant species inherent to the sol-gel process. While this causes the luminescence behavior of rare-earth-doped sol-gel-derived fluoride materials to be similar to oxide hosts, these remnant species modify the branching ratios, resultantly leading to a novel 824 nm emission when excited at 488 nm.

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16

Kumar, Sanjay, Sudhir Saralch, and Dinesh Pathak. "Nanopowder and Thin Films of ZnO by Sol Gel Approach." Journal of Nano- and Electronic Physics 11, no. 4 (2019): 04027–1. http://dx.doi.org/10.21272/jnep.11(4).04027.

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17

Armelao, Lidia, Davide Barreca, Manuel Bertapelle, Gregorio Bottaro, Cinzia Sada, and Eugenio Tondello. "A sol–gel approach to nanophasic copper oxide thin films." Thin Solid Films 442, no. 1-2 (October 2003): 48–52. http://dx.doi.org/10.1016/s0040-6090(03)00940-4.

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18

Wen, Jianye, and Garth L. Wilkes. "Organic/Inorganic Hybrid Network Materials by the Sol−Gel Approach." Chemistry of Materials 8, no. 8 (January 1996): 1667–81. http://dx.doi.org/10.1021/cm9601143.

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19

Sharma, M., D. K. Singh, R. K. Upadhyay, M. S. Yadav, S. S. Amritphale, and N. Chandra. "Novel approach for sol–gel synthesis of nanosize aluminium titanate." Materials Research Innovations 18, no. 3 (December 6, 2013): 235–40. http://dx.doi.org/10.1179/1433075x13y.0000000130.

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20

Olivi-Tran, N., P. Lenormand, A. Lecomte, and A. Dauger. "Molecular Dynamics approach of sol–gel transition: Comparison with experiments." Physica A: Statistical Mechanics and its Applications 354 (August 2005): 10–18. http://dx.doi.org/10.1016/j.physa.2005.02.034.

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21

Nishinari, K., S. Koide, P. A. Williams, and G. O. Phillips. "A zipper model approach to the thermoreversible gel-sol transition." Journal de Physique 51, no. 16 (1990): 1759–68. http://dx.doi.org/10.1051/jphys:0199000510160175900.

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22

Kim, Hongryeol, Yong Tae Kim, Hee K. Chae, Yongkwan Dong, and Hoseop Yun. "Sol?Gel Approach to Sr2CeO4 Phosphor from Single Alkoxide Precursors." Journal of Sol-Gel Science and Technology 33, no. 1 (January 2005): 75–80. http://dx.doi.org/10.1007/s10971-005-6703-1.

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23

Huo, Hongjing, Sibing Wang, Shuwei Lin, Yi Li, Baozong Li, and Yonggang Yang. "Chiral zirconia nanotubes prepared through a sol–gel transcription approach." J. Mater. Chem. A 2, no. 2 (2014): 333–38. http://dx.doi.org/10.1039/c3ta13447d.

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Bagheri, Habib, Hamed Piri-Moghadam, and Ali Es’haghi. "An unbreakable on-line approach towards sol–gel capillary microextraction." Journal of Chromatography A 1218, no. 26 (July 2011): 3952–57. http://dx.doi.org/10.1016/j.chroma.2011.04.059.

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25

Farag, Hala K., and Hussein Abbas. "Synthesis of Nanostructured Tin Oxide by Sol–Gel and Sonochemical Approaches in an Ionic Liquid." Zeitschrift für Physikalische Chemie 232, no. 2 (February 23, 2018): 245–56. http://dx.doi.org/10.1515/zpch-2017-0966.

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AbstractThe present paper shows a comparative study on the synthesis of nanostructured tin oxide in the ionic liquid 1-ethyl-3-methylimidazolium trifluoromethylsulfonate ([EMIm]TfO) by sol–gel and sonochemical methods. The XRD results of the synthesized materials revealed the formation of single tetragonal phase of SnO2by sol–gel method whereas a mixture of tetragonal SnO and orthorhombic SnO2phases was obtained by the sonochemical method. The sonochemical approach led to the formation of finer nanoparticales with a higher specific surface area than that of the sol–gel synthesized oxide. The average sizes of tin oxide nanoparticles were found to be about 30 nm and 15 nm for the particles obtained by sol–gel and sonochemical methods, respectively. The surface area of SnO2nanopowder obtained by the sol–gel method (calcined at 500 °C) was estimated to be 11.6 m2g−1, and the mean pore diameter was found to be 6.33 nm. Whereas the mixed SnO/SnO2sample (calcined at 500 °C) obtained by the sonochemical method exhibited a higher surface area of 43.11 m2g−1and an average pore diameter of 1.90 nm. The band gap of the synthesized tin oxides was estimated from the UV-vis. results to be 4.01 and 4.25 eV for the sol–gel and sonochemically synthesized samples, respectively.

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Kamal Mohamed, Seeni Meera, Rajavelu Murali Sankar, Manikantan Syamala Kiran, Sellamuthu N. Jaisankar, Barbara Milow, and Asit Baran Mandal. "Facile Preparation of Biocompatible and Transparent Silica Aerogels as Ionogels Using Choline Dihydrogen Phosphate Ionic Liquid." Applied Sciences 11, no. 1 (December 28, 2020): 206. http://dx.doi.org/10.3390/app11010206.

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We developed a facile and greener approach for the preparation of silica-aerogel-based ionogels using choline dihydrogen phosphate ionic liquid by the sol–gel approach. A series of silica-based aerogels as ionogels were prepared by varying the ionic liquid concentrations: 0.1, 0.5, 1, 3, 5, and 10 wt %. The as-prepared ionogels were characterized using several analytical techniques, namely, attenuated total reflectance (ATR)/FT-IR, TGA, XRD, and particle size analyses. The role of ionic liquid in the viscoelastic properties of the sol–gel transition was monitored using time-dependent rheological measurements. The addition of ionic liquid to the sol–gel system favored the formation of a more interconnected silica network structure. The formation of a silica network structure during sol–gel hydrolysis and condensation was confirmed from 29Si solid-state CP/MAS NMR spectra. The effect of the ionic liquid on the morphological properties was investigated using SEM and TEM studies. The cell viabilities of the prepared gel samples were clearly evident from the cytotoxicity assay studies using Swiss and HaCaT cells. The main advantages of using biocompatible ionic liquids for the preparation of these aerogels as ionogels are that they may be used for encapsulating biological molecules and retain their conformational stability for a longer duration.

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Wang, Fenying, Dan Wang, Tingting Wang, Yu Jin, Baoping Ling, Qianjin Li, and Jianlin Li. "A simple approach to prepare fluorescent molecularly imprinted nanoparticles." RSC Advances 11, no. 13 (2021): 7732–37. http://dx.doi.org/10.1039/d0ra10618f.

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Fluorescent molecularly imprinted polymer (FMIP) gains great attention in many fields due to their low cost, good biocompatibility and low toxicity. Here, a high-performance FMIP was prepared based on the autocatalytic silica sol–gel reaction.

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Ding, Longhua, and Bin Su. "An electrochemistry assisted approach for fast, low-cost and gram-scale synthesis of mesoporous silica nanoparticles." RSC Advances 5, no. 81 (2015): 65922–26. http://dx.doi.org/10.1039/c5ra13482j.

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29

Mahr, Muhammad Shabir, Thomas Hübert, Ina Stephan, Michael Bücker, and Holger Militz. "Reducing copper leaching from treated wood by sol-gel derived TiO2 and SiO2 depositions." Holzforschung 67, no. 4 (May 1, 2013): 429–35. http://dx.doi.org/10.1515/hf-2012-0105.

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Abstract The antileaching efficacy of sol-gel-derived TiO2- and SiO2-based precursors has been evaluated through laboratory leaching trials with pine sapwood in two different ways. In a one-step process, wood was vacuum impregnated by the precursor solutions containing CuCl2. The copper (Cu) emission rates of the sol-gel-based impregnated woods were up to 70% lower than that of wood treated with pure CuCl2 solution at the same level of concentration. More improvement (80%) could be achieved in a two-step process, in which sol-gel precursors were introduced into an already CuCl2-treated wood. The refinement was attributed to several effects. In the one-step approach, Cu was embedded in the TiO2/SiO2 gels formed in the wood texture. During a two-step impregnation, gel layers that were formed in the wooden interior acted as an effective diffusion barrier. The sol-gel impregnations made wood more hydrophobic; therefore, the low amount of water that penetrated the cell wall was less efficient to leach out Cu.

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Sriyanti, Sriyanti. "Encapsulation of Alkaline Phosphatase in Mesoporous Methyl-Silica Hybrid by Sol-Gel Process." Jurnal Kimia Sains dan Aplikasi 20, no. 3 (October 1, 2017): 110–13. http://dx.doi.org/10.14710/jksa.20.3.110-113.

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In recent years, the sol-gel technique has attracted increasing interest as a unique approach to immobilize biomolecules for bioanalitical applications as well as biochemical and biophysical studies. In this research, encapsulation of Alkaline Phosphatase (ALP) enzyme in mesoporous methyl-silica hybrid by sol-gel process has been carried out. Mesoporous methyl-silica hybrid has been synthesis by using tetraethylorthosilicate (TEOS) and methyltriethoxysilane (MTES) as precursor and poly(ethylene) glycol (PEG) as a polymer dopant. The preparation of methyl-silica hybrid was carried out at various mol ratios of precursors and PEG concentration. Encapsulation was emphasized by mixing sol solution and tris-HCl buffer containing ALP. The Surface Area Analyzer analysis data showed that the pore diameter and surface area of methyl-silica hybrid tended to increase as the PEG dopant concentration increases. Result showed that ALP encapsulated in the methyl-silica hybrids with PEG dopant gave enzymatic activity as 0.112 U/mg enzyme, higher than ALP encapsulated in copolymerization of TEOS with MTES or in silica from TEOS precursor only (0.098 U/mg enzyme and 0.069 U/mg enzyme, respectively). It was shown that copolymerization of TEOS with organosilane precursor and the entrapment of polymer additives into sol-gel processed materials are useful methods for modifying the internal environment and hence the activity of biomolecules entrapped in sol-gel derived biomaterials.

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Prusakova, Valentina, Giovanni Giusti, Cristian Collini, Giancarlo Pepponi, Mario Barozzi, Leandro Lorenzelli, Salvatore Iannotta, Roberto Verucchi, and Sandra Dirè. "Merging the Sol–Gel Technique with the Pulsed Microplasma Cluster Source Deposition to Improve Control over the Memristive Response of TiO2 Thin Films." Coatings 11, no. 3 (March 18, 2021): 348. http://dx.doi.org/10.3390/coatings11030348.

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Metal oxide thin films show promising resistive switching properties, making them materials of reference for the development of memristive devices. TiO2 is probably one of the most studied materials and is being synthesized using various techniques, each of them having specific optimizable characteristics. In this paper, we report on an innovative approach by combining the sol–gel and the pulsed microplasma cluster source (PMCS) methods, exploiting the low temperature and low cost of the former process and precise control over nanocristallinity of the latter. We show that this approach overcomes the reported limitations that each technique shows in fabricating memristive devices when independently used. A side-by-side comparison of the TiO2 thin films produced by the PMCS, sol–gel, and PMCS/sol–gel hybrid methods (HM) demonstrates an improvement of the memristive properties and a reduction of the electrical shorts in the TiO2 based devices.

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Anuradha, T. V. "Template-Assisted Sol-Gel Synthesis of Nanocrystalline BaTiO3." E-Journal of Chemistry 7, no. 3 (2010): 894–98. http://dx.doi.org/10.1155/2010/456263.

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Nanocrystalline perovskite barium titanate with an average particle size less than ∼10 nm is produced using sol-gel route involving ligand-assisted templating. BaTiO3is obtained by the controlled hydrolysis and condensation reaction of barium acetate (Ba(CH3COO)2) with titanium tetra chloride (TiCl4) in the reverse micelles of dodecylamine (DDA) which is used as the template. Our attempts to produce mesoporous BaTiO3have resulted in the formation of nanocrystalline BaTiO3. The synthesis of nanostructured BaTiO3is carried out using the ligand-assisted templating approach which proceeds through the sol-gel route. Dodecylamine is used as the template. The sol-gel process in general presents inherent advantages because the nanostructure of the desired materials can be controlled together with their porous structure. Ligand-assisted templating approach involves the formation of covalent bond between the inorganic analogue and the template. Ba(CH3COO)2and TiCl4are used as barium-source and titanium-source respectively. The reaction between Ba(CH3COO)2and TiCl4is found to take place deliberately on the pre-assembled species which acts as the template or occurring with in them which in turn will lead to the generation of the desired nanoscale structure (nanopores or nanoparticles).

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Banerjee, Derrick A., and Konstantinos A. Sierros. "Direct Writing of Hydrophobic Sol-Gel Patterns." MRS Proceedings 1804 (2015): 13–18. http://dx.doi.org/10.1557/opl.2015.520.

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ABSTRACTSolution-based fabrication methods have been widely used for depositing uniform functional coatings. These coatings can be utilized in a variety of applications such as optoelectronics, biomedical, and energy. However, such fabrication techniques are not appropriate for directly depositing patterned micro/nano-scale features, which are required in many contact-based applications such as in MEMS.In this work we propose the direct writing of hydrophobic silica-based sol-gel patterns with sustained functionality and their subsequent tribological characterization. Such an approach may be an advantageous alternative to current lithography-based methods due to the relative ease of processing and low material waste. This investigation involves the abrasive wear and frictional analysis of patterned fluorinated silica sol-gel coatings that are directly printed onto glass substrates with a robotically controlled pneumatic nozzle system. Such work sheds light on the tribological properties of lithography-free processed hydrophobic patterns for applications spanning from micromotors to biomedical fluidic devices.

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Araujo, Francisca P., Pollyana Trigueiro, Luzia M. C. Honório, Marcelo B. Furtini, Dyego M. Oliveira, Luciano C. Almeida, Ramón R. P. Garcia, Bartolomeu C. Viana, Edson C. Silva-Filho, and Josy A. Osajima. "A novel green approach based on ZnO nanoparticles and polysaccharides for photocatalytic performance." Dalton Transactions 49, no. 45 (2020): 16394–403. http://dx.doi.org/10.1039/d0dt01128b.

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35

Järvekülg, Martin, Raul Välbe, Jakob Jõgi, Aigi Salundi, Triin Kangur, Valter Reedo, Jaan Kalda, Uno Mäeorg, Ants Lõhmus, and Alexey E. Romanov. "A sol-gel approach to self-formation of microtubular structures from metal alkoxide gel films." physica status solidi (a) 209, no. 12 (September 10, 2012): 2481–86. http://dx.doi.org/10.1002/pssa.201228371.

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Shaiful Bahari, Anis Muneerah, Siti Zubaidah Othman, Mohammad Faizulizwan Mohamad Fadli, Mohd Zul Amzar Zulkifli, Saidatul Akmal Biyamin, Mohammad Aminul Islam, Zarina Aspanut, Nowshad Amin, and Halina Misran. "Facile synthesis of Zr-based metal-organic gel (Zr-MOG) using “green” sol-gel approach." Surfaces and Interfaces 27 (December 2021): 101469. http://dx.doi.org/10.1016/j.surfin.2021.101469.

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Smitha, V. S., S. S. Syamili, A. Peer Mohamed, Balagopal N. Nair, and U. S. Hareesh. "ORMOSIL–ZrO2 hybrid nanocomposites and coatings on aluminium alloys for corrosion resistance; a sol–gel approach." New Journal of Chemistry 42, no. 12 (2018): 10337–47. http://dx.doi.org/10.1039/c7nj05174c.

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Hung-Low, F., D. A. Ramirez, G. R. Peterson, W. M. Hikal, and L. J. Hope-Weeks. "Development of a carbon-supported Sn–SnO2 photocatalyst by a new hybridized sol–gel/dextran approach." RSC Advances 6, no. 25 (2016): 21019–25. http://dx.doi.org/10.1039/c6ra01129b.

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Han, Hui Min, Dan Tong Wang, Hua Qian Yu, Min Zuo, Li Hong Wang, and De Gang Zhao. "Ceria Coatings Prepared by Sol-Gel Approach on AZ91 Magnesium Alloy." Materials Science Forum 898 (June 2017): 1369–80. http://dx.doi.org/10.4028/www.scientific.net/msf.898.1369.

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The ceria coatings on AZ91 substrates were successfully synthesized by chemical conversion and the corrosion resistance of AZ91 samples with and without ceria coatings were evaluated by means of electrochemical corrosion in 3.5 wt.% NaCl solution. According to the parameters derived from the polarization date, the Icorr (the corrosion current density) values of the coated samples are smaller than that of bare one, indicating that the corrosion resistance of AZ91 alloys has been improved to some extent. The influence of fluoridated pretreatment, inter-layer heat treatment, sintering temperature and the layer of films on the performance of ceria coatings were also investigated. It was found that the inter-layer heat treatment has no influence on improving the anticorrosion resistance of AZ91 alloy. In comparison with the bare one, the Icorr of optimal sample is about 0.0219mA/cm2, which decreases by two orders of magnitude, indicating that the ceria coatings could significantly improve the corrosion resistance of AZ91 magnesium alloy.

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40

Doroshenko, Dmytro, Igor Pylypenko, Borys Kornilovych, and Irina Subbota. "Preparation of porous silica nanocomposites from montmorillonite using sol-gel approach." Technology audit and production reserves 4, no. 3(42) (April 24, 2018): 4–9. http://dx.doi.org/10.15587/2312-8372.2018.140355.

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41

Zhang, Chuanyong, Sibing Wang, Hongjing Huo, Yi Li, Baozong Li, and Yonggang Yang. "Preparation of helical titania nanotubes using a sol–gel transcription approach." Materials Letters 88 (December 2012): 23–26. http://dx.doi.org/10.1016/j.matlet.2012.08.029.

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Zhang, Chuanyong, Hongjing Huo, Yi Li, Baozong Li, and Yonggang Yang. "Preparation of helical CdS nanotubes using a sol–gel transcription approach." Materials Letters 102-103 (July 2013): 50–52. http://dx.doi.org/10.1016/j.matlet.2013.03.105.

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Caruso, Rachel A., and Markus Antonietti. "Sol−Gel Nanocoating: An Approach to the Preparation of Structured Materials." Chemistry of Materials 13, no. 10 (October 2001): 3272–82. http://dx.doi.org/10.1021/cm001257z.

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Wu, Guosheng, Lide Zhang, Baochang Cheng, Ting Xie, and Xiaoyou Yuan. "Synthesis of Eu2O3Nanotube Arrays through a Facile Sol−Gel Template Approach." Journal of the American Chemical Society 126, no. 19 (May 2004): 5976–77. http://dx.doi.org/10.1021/ja039012l.

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Armelao, L., D. Barreca, G. Bottaro, A. Gasparotto, and C. Maragno. "Functional Metal Oxide Nanosystems by a Hybrid CVD/Sol–Gel Approach." Chemical Vapor Deposition 13, no. 2-3 (March 2007): 112–17. http://dx.doi.org/10.1002/cvde.200606499.

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Li, C. S., L. H. Jin, Z. M. Yu, S. N. Zhang, Y. F. Lu, J. Q. Feng, Y. Wang, and P. X. Zhang. "Enhanced flux pinning in YGdBCO film grown by sol–gel approach." Journal of Sol-Gel Science and Technology 70, no. 1 (January 10, 2014): 67–71. http://dx.doi.org/10.1007/s10971-014-3275-y.

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Go, Yong-Bok, and Hee-Gwon Chae. "Thio Sol-Gel Approach to An Octanuclear Titanium(IV) Cluster Compound." Journal of the Korean Chemical Society 48, no. 4 (August 20, 2004): 436–38. http://dx.doi.org/10.5012/jkcs.2004.48.4.436.

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Asman, Saliza, Sharifah Mohamad, and Mohd Kamarulzaki Mustafa. "Sol-gel Approach in Molecular Imprinting for Crystal Violet Selective Recognition." Sains Malaysiana 50, no. 7 (July 31, 2021): 1921–33. http://dx.doi.org/10.17576/jsm-2021-5007-08.

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A limitation of conventional MIP in thermal and mechanical stabilities condition, improper porosity and low adsorption capacity, give a reason to introduce a sol-gel method in molecular imprinting process recently. In this study, a synthesis of new sol-gel molecularly imprinted polymer (SG-MIP) was studied for crystal violet (CV) selective recognition. The control non-molecularly imprinted polymer (SG-NIP) was also synthesized as reference. The preparation of SG-MIP was introduced by a combination of the organic and inorganic mixture. The organic solution included the methacrylic acid, trimethylolpropane trimethacrylate, and benzoyl peroxide which are monomer, crosslinker, and initiator, respectively. The inorganic solution involved the ratio of tetraethyl orthosilicate: ethanol (1:1 v/v). The functional group analysis proved the successful synthesized SG-MIP and SG-NIP. The thermal analysis indicated high thermal stability for SG-MIP and SG-NIP, respectively. The morphology and surface analyses showed the respective different structures, surface, and porosity values between SG-MIP and SG-NIP, which influence the selectivity study and adsorption behaviour of SG-MIP toward CV adsorption. The result verified that the SG-MIP (4.900 mgg-1) has higher adsorption and higher selectivity characteristics compared to SG-NIP (4.432 mgg-1). The equilibrium data of kinetic and isotherm studies for SG-MIP and SG-NIP were well-fitted to the pseudo-second order model (R2 = 0.9997 and R2 = 0.9996) and Freundlich isotherm model (R2 = 0.9500 and R2 = 0.9764), respectively. The Freundlich isotherm was supported by the Scatchard plot instead of the Langmuir isotherm model.

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Esposito, Serena. "“Traditional” Sol-Gel Chemistry as a Powerful Tool for the Preparation of Supported Metal and Metal Oxide Catalysts." Materials 12, no. 4 (February 23, 2019): 668. http://dx.doi.org/10.3390/ma12040668.

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The sol-gel method is an attractive synthetic approach in the design of advanced catalytic formulations that are based on metal and metal oxide with high degree of structural and compositional homogeneity. Nowadays, though it originated with the hydrolysis and condensation of metal alkoxides, sol-gel chemistry gathers plenty of fascinating strategies to prepare materials from solution state precursors. Low temperature chemistry, reproducibility, and high surface to volume ratios of obtained products are features that add merit to this technology. The development of different and fascinating procedure was fostered by the availability of new molecular precursors, chelating agents and templates, with the great advantage of tailoring the physico-chemical properties of the materials through the manipulation of the synthesis conditions. The aim of this review is to present an overview of the “traditional” sol-gel synthesis of tailored and multifunctional inorganic materials and their application in the main domain of heterogeneous catalysis. One of the main achievements is to stress the versatility of sol-gel preparation by highlighting its advantage over other preparation methods through some specific examples of the synthesis of catalysts.

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SUN, Jian-zhi. "Study of a Novel Cathode Material for Magnesium Secondary Battery." Journal of New Materials for Electrochemical Systems 16, no. 4 (October 30, 2013): 253–56. http://dx.doi.org/10.14447/jnmes.v16i4.149.

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Orthosilicate MgNiSiO4 materials were prepared by sol-gel approach and a molten salt method. The preparation process had a profound effect on the morphology of the materials. As a new cathode for magnesium secondary battery, the material shows a reversible Mg2+ intercalation-deintercalation process. Preliminary electrochemical data indicated that the MgNiSiO4 prepared by a molten salt method had a higher peak current, a larger discharge capacity and a better cyclability compared with the MgNiSiO4 prepared by sol-gel approach. The results show that MgNiSiO4 could be a potential cathode material for high-energy magnesium secondary battery.

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Journal articles on the topic 'Sol-gel approach'

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