Готові списки джерел за темами / Rough nanorods / Статті в журналах

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Статті в журналах з теми "Rough nanorods"

Автор: Grafiati

Опубліковано: 10 березня 2023

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López, R., T. Díaz, G. García, E. Rosendo, R. Galeazzi, A. Coyopol, H. Juárez, M. Pacio, F. Morales, and A. I. Oliva. "Fast Formation of Surface Oxidized Zn Nanorods and Urchin-Like Microclusters." Advances in Materials Science and Engineering 2014 (2014): 1–4. http://dx.doi.org/10.1155/2014/257494.

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Entangled Zn-ZnO nanorods and urchin-like microstructures were synthesized by the hot filament chemical vapor deposition technique at 825 and 1015°C, respectively. X-ray diffraction results showed a mixture of ZnO and Zn phases in both nanorods and urchin-like structures. The presence of Zn confirms the chemical dissociation of the ZnO solid source. The Z-ZnO nanorods with diameter of about 100 nm showed dispersed-like morphology. The urchin-like structures with micrometer diameters exhibited porous and rough morphology with epitaxial formation of nanorods.

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Kim, Dong Chan, Bo Hyun Kong, Young Yi Kim, Hyung Koun Cho, Jeong Yong Lee, and Dong Jun Park. "Effect of Buffer Thickness on the Formation of ZnO Nanorods Grown by MOCVD." Solid State Phenomena 124-126 (June 2007): 101–4. http://dx.doi.org/10.4028/www.scientific.net/ssp.124-126.101.

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ZnO semiconductor has a wide band gap of 3.37 eV and a large exciton binding energy of 60 meV, and displays excellent sensing and optical properties. In particular, ZnO based 1D nanowires and nanorods have received intensive attention because of their potential applications in various fields. We grew ZnO buffer layers prior to the growth of ZnO nanorods for the fabrication of the vertically well-aligned ZnO nanorods without any catalysts. The ZnO nanorods were grown on Si (111) substrates by vertical MOCVD. The ZnO buffer layers were grown with various thicknesses at 400 °C and their effect on the formation of ZnO nanorods at 300 °C was evaluated by FESEM, XRD, and PL. The synthesized ZnO nanorods on the ZnO film show a high quality, a large-scale uniformity, and a vertical alignment along the [0001]ZnO compared to those on the Si substrates showing the randomly inclined ZnO nanorods. For sample using ZnO buffer layer, 1D ZnO nanorods with diameters of 150-200 nm were successively fabricated at very low growth temperature, while for sample without ZnO buffer the ZnO films with rough surface were grown.

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Wang, Jilin, Hejie Liao, Yuchun Ji, Fei Long, Yunle Gu, Zhengguang Zou, Weimin Wang, and Zhengyi Fu. "In situ controlled rapid growth of novel high activity TiB2/(TiB2–TiN) hierarchical/heterostructured nanocomposites." Beilstein Journal of Nanotechnology 8 (October 10, 2017): 2116–25. http://dx.doi.org/10.3762/bjnano.8.211.

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In this work, a reaction coupling self-propagating high-temperature synthesis (RC-SHS) method was developed for the in situ controlled synthesis of novel, high activity TiB2/(TiB2–TiN) hierarchical/heterostructured nanocomposites using TiO2, Mg, B2O3, KBH4 and NH4NO3 as raw materials. The as-synthesized samples were characterized using X-ray diffraction (XRD), scanning electron microscope (SEM), X-ray energy dispersive spectroscopy (EDX), transition electron microscopy (TEM), high-resolution TEM (HRTEM) and selected-area electron diffraction (SAED). The obtained TiB2/TiN hierarchical/heterostructured nanocomposites demonstrated an average particle size of 100–500 nm, and every particle surface was covered by many multibranched, tapered nanorods with diameters in the range of 10–40 nm and lengths of 50–200 nm. In addition, the tapered nanorod presents a rough surface with abundant exposed atoms. The internal and external components of the nanorods were TiB2 and TiN, respectively. Additionally, a thermogravimetric and differential scanning calorimetry analyzer (TG-DSC) comparison analysis indicated that the as-synthesized samples presented better chemical activity than that of commercial TiB2 powders. Finally, the possible chemical reactions as well as the proposed growth mechanism of the TiB2/(TiB2–TiN) hierarchical/heterostructured nanocomposites were further discussed.

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Chen, Xi, Tie-Jun Zhu, and Xin-Bing Zhao. "Synthesis and growth mechanism of rough PbTe polycrystalline thermoelectric nanorods." Journal of Crystal Growth 311, no. 11 (May 2009): 3179–83. http://dx.doi.org/10.1016/j.jcrysgro.2009.03.034.

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Zhang, Liruhua, Qianhong Shen, LiXing Yu, Feilong Huang, Changteng Zhang, Jiansong Sheng, Fang Zhang, Di Cheng, and Hui Yang. "Fabrication of a high-adsorption N–TiO2/Bi2MoO6 composite photocatalyst with a hierarchical heterostructure for boosted weak-visible-light photocatalytic degradation of tetracycline." CrystEngComm 22, no. 33 (2020): 5481–90. http://dx.doi.org/10.1039/d0ce00761g.

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TiO₂ hierarchical heterostructure photocatalyst was successfully fabricated through the in situ growth of Bi₂MoO₆ nanosheets on rough N–TiO₂ nanorods with a bark-like surface. The structure–property relationship of this composite material were researched.

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Li, Xiang-Bing, Da-Qian Mo, Xiao-Yan Niu, Qian-Qian Zhang, Shu-Yi Ma, Wen-Qiang Dang, Li-Jun Zhang, et al. "Detection of accumulated continuously ethanol concentration by ZnO–SnO2 composite nanorods sensor." Modern Physics Letters B 35, no. 25 (August 5, 2021): 2150395. http://dx.doi.org/10.1142/s0217984921503954.

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ZnO–SnO2 composite nanorods with rough surfaces were synthesized via a coaxially nested needle electrospinning method. The morphology and nanostructure were characterized by scanning electron microscopy, atomic force microscope, EDS mapping, nitrogen physical adsorption, and X-ray diffraction. The synthesis mechanisms of ZnO–SnO2 nanorods were discussed, which combined the gas sensitivity advantages of different materials. ZnO–SnO2 nanorods sensor with good ethanol gas sensitivity achieved accurate measurement of continuous ethanol concentration. The sensor exhibited good selectivity to ethanol in the presence of formaldehyde, methanol, acetone, acetic acid, benzene, and xylene at 290[Formula: see text]C. The response and recovery time to 100 ppm ethanol were about 13 and 35 s, respectively. The energy band, barrier, charge transfer of ZnO–SnO2 composite material was discussed, and its optimization of gas sensitivity was analyzed in detail.

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Jazirehpour, Mohammad, and Ali Alizadeh. "Synthesis of Boron Carbide Core−Shell Nanorods and a Qualitative Model To Explain Formation of Rough Shell Nanorods." Journal of Physical Chemistry C 113, no. 5 (January 8, 2009): 1657–61. http://dx.doi.org/10.1021/jp809470u.

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Gu, Xiaocong, Dawen Yang, Zong Liu, Shuli Wang, and Ligang Feng. "Iron oxide promoted nickel/nickel oxide rough nanorods for efficient urea assisted water splitting." Electrochimica Acta 353 (September 2020): 136516. http://dx.doi.org/10.1016/j.electacta.2020.136516.

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Hao, Xiuqing, Jian Li, Xiaolu Song, Li Wang, and Liang Li. "Roughness effect for tunable wetting surfaces on metallic substrate." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 232, no. 5 (June 23, 2016): 787–96. http://dx.doi.org/10.1177/0954405416654191.

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A facile process for controllable fabrication of wetting surfaces with variable hierarchical structures on metallic substrates is proposed in this study. This process, which combines the through-mask electrochemical micromachining with hydrothermal growth method, could be applied on all kinds of type and size of conductive metal. First, the anodic dissolution process is predicted using numerical simulation and experiments. The formulation of electrolyte and the etching conditions in through-mask electrochemical micromachining are optimized. Ordered microstructures and smooth etched surface in large scale are obtained using the optimized parameters. Moreover, a technology has been explored to obtain various styles of multi-level structures through an alignment system or combining with a hydrothermal method of growing ZnO nanorods. The wetting effects of the rough three-dimensional surfaces are evaluated using a contact angle system. Furthermore, the wetting and the preliminary friction reduction effects of the rough three-dimensional surfaces are evaluated using contact angle system.

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Dong, Suotao, Xiuhua Fu, Zhongyao Zhu, and Cheng Li. "Silver Nanorods Array on the Zinc Oxide Thin Film Deposited by Hydrothermal Methods for Surface-Enhanced Raman Scattering." Applied Sciences 12, no. 18 (September 15, 2022): 9275. http://dx.doi.org/10.3390/app12189275.

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The wide application of surface-enhanced Raman spectroscopy (SERS) is based on adaptable substrates, which are primarily limited to rough precious metals and colloidal nanoparticle materials. A novel method to enhance surface Raman scattering is present. This technique is reliant on the local surface plasmon resonance phenomena, in which incident light can be coupled to the plasma at the interface, resulting in a strong electric field. The field can propagate from the surface of the metal–dielectric interface, so adjacent molecules will experience more intense Raman scattering. The physical enhancement method was adopted; silver is deposited on the surface of different pH rough zinc oxide thin film, deposited by hydrothermal methods using the above principle, considerably improving the surface Raman scattering signal. Comparing the enhancement effects of zinc oxide substrates prepared in different pH environments on the Raman effect, the optimal acid–base environment was found, and the corresponding enhancement factors were calculated.

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Zaraska, Leszek, Karolina Gawlak, Elżbieta Kurowska-Tabor, Marian Jaskuła, and Grzegorz D. Sulka. "Template-assisted synthesis of rough Ag nanorods and their application for amperometric sensing of H 2 O 2." Comptes Rendus Chimie 20, no. 7 (July 2017): 693–96. http://dx.doi.org/10.1016/j.crci.2017.03.001.

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Arshadi Rastabi, Shahrzad, Rasoul Sarraf-Mamoory, Ghadir Razaz, Nicklas Blomquist, Magnus Hummelgård, and Håkan Olin. "Treatment of NiMoO4/nanographite nanocomposite electrodes using flexible graphite substrate for aqueous hybrid supercapacitors." PLOS ONE 16, no. 7 (July 2, 2021): e0254023. http://dx.doi.org/10.1371/journal.pone.0254023.

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The cycling performance of supercapacitors sometimes becomes limited when electrode materials slough off during frequent charge–discharge cycles, due to weak bonding between the active material and the current collector. In this work, a flexible graphite foil substrate was successfully used as the current collector for supercapacitor electrodes. Graphite foil substrates were treated in different ways with different acid concentrations and temperatures before being coated with an active material (NiMoO4/nanographite). The electrode treated with HNO3 (65%) and H2SO4 (95%) in a 1:1 ratio at 24°C gave better electrochemical performance than did electrodes treated in other ways. This electrode had capacitances of 441 and 184 Fg–1 at current densities of 0.5 and 10 Ag-1, respectively, with a good rate capability over the current densities of the other treated electrodes. SEM observation of the electrodes revealed that NiMoO4 with a morphology of nanorods 100–120 nm long was properly accommodated on the graphite surface during the charge–discharge process. It also showed that treatment with high-concentration acid created an appropriately porous and rough surface on the graphite, enhancing the adhesion of NiMoO4/nanographite and boosting the electrochemical performance.

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Heo, Jin Hyuck, Myung Sang You, and Sang Hyuk Im. "A Study on Formation of Vertically Aligned ZnO Nanorods Arrays on a Rough FTO Transparent Electrode by the Introduction of TiO2Crystalline Nano-sol Blocking Interlayer." Korean Chemical Engineering Research 51, no. 6 (December 1, 2013): 774–79. http://dx.doi.org/10.9713/kcer.2013.51.6.774.

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DAO, Khac An, Hong Trang PHAM, and Van Vuong HOANG. "The Effects of Ge Substrate Surface States and Au Catalyst Layer Thickness on the Growth of Different GexOy Nanomaterials and Nanocrystals Configurations Using Vapor-Liquid-Solid Method with two Steps Temperature Mode." Catalysis Research 03, no. 01 (January 31, 2023): 1. http://dx.doi.org/10.21926/cr.2301006.

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Recently the GexOy nanomaterials have been studied intensively due to their interesting electronic materials, which have many particular properties and applications in nanotechnology and nano-devices fabrication. Much work has been done on many different synthesis methods and their properties of Ge and GexOy nanomaterials. However, the effects of the different Ge substrate surface states and Au catalyst layer thicknesses on the formation of different forms/morphologies of nanomaterials (nanowires, nanorods, nanoparticles, and nanocrystals particularly) have yet to be discussed more in detail. This paper outlines the synthesis methods to grow the different GexOy nanomaterials on the different Ge surface states at different Au catalyst layer thicknesses such as mechanically polished surface, deep Chemical etched surface, chemical polishing surface, and initial rough surface. The morphological, and structural properties of GexOy nanomaterials have been investigated using SEM, EDX, and TEM techniques. The formation of different morphological, and structural properties of different GexOy nanomaterials grown have been explained by the effects of the Au/Ge/O droplets/clusters formation situations and surface defects on the Ge substrate surface caused. The growth mechanisms have been explained by the model of the VLS growth method with the Oxide Assist Growth mechanism. The results showed that the effects of the different Ge substrate surface states and Au catalyst layers’ thickness strongly influence the formation of GexOy materials in terms of the sizes, structures, and percentages of elements. The results of the controllable different GexOy nanomaterials have many significant meanings for both theoretical and practical applications in nanomaterials and nano-device fabrication.

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Vehse, Martin, Stefan Geißendörfer, Tobias Voss, Jan-Peter Richters, Benedikt Schumacher, Karsten von Maydell, and Carsten Agert. "Investigation on Nanorod TCO Light-trapping for a-Si:H Solar Cells in Superstrate Configuration." MRS Proceedings 1426 (2012): 111–16. http://dx.doi.org/10.1557/opl.2012.1017.

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ABSTRACTLight trapping due to rough transparent conductive oxide (TCO) surfaces is a common and industrially applied technique in thin film silicon solar cells. In this study, we demonstrate a novel light trapping solution using electrochemically deposited, highly doped zinc oxide (ZnO) nanorod arrays which goes beyond standard light management concepts. The n-doped ZnO rods enable the application as front electrode in superstrate configuration. We explain our experimental results by multidimensional solar cell simulations and show how the nanorod array geometry influences the cell performance. The requirement is demonstrated to choose an appropriate average nanorod distance which strongly influences the electrical cell characteristics. The results clearly outline the potential of TCO nanorod technology for enhanced light trapping.

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Hammud, Hassan H., Ranjith Kumar Karnati, Nusaybah Alotaibi, Syed Ghazanfar Hussain, and Thirumurugan Prakasam. "Cobalt–Carbon Nanoparticles with Silica Support for Uptake of Cationic and Anionic Dyes from Polluted Water." Molecules 26, no. 24 (December 10, 2021): 7489. http://dx.doi.org/10.3390/molecules26247489.

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Silica-supported hierarchical graphitic carbon sheltering cobalt nanoparticles Co-HGC@SiO2 (1) were prepared by pyrolysis at 850 °C of [Co(phen)(H2O)4]SO4·2H2O complex with silica in the presence of pyrene as a carbon source under nitrogen atmosphere. Nanocomposites (2) and (3) were obtained by acid treatment of (1) with HCl and HF acid, respectively. The nanocomposites showed rough hierarchical carbon microstructures over silica support decorated with irregular cobalt nanospheres and nanorods 50 to 200 nm in diameter. The nanoparticles consist of graphitic shells and cobalt cores. SEM, EDAX and TEM elemental mapping indicate a noticeable loss of cobalt in the case of (2) and loss of cobalt and silica in the case of (3) with an increase in porosity. Nanocomposite (3) showed the highest BET surface area 217.5 m2g−1. Raman spectrum shows defect D-band and graphitic G-band as expected in carbon nanostructures. PXRD reveals the presence of cobalt(0) nanoparticles. XPS indicates the presence of Co(II) oxides and the successful doping of nitrogen in the nanocomposites. Moreover, TEM elemental mapping provides information about the abundance of Si, Co, C, N and S elements in zones. Nanocomposite (1) showed maximum uptake capacity of 192.3 and 224.5 mg/g for crystal violet CV and methyl orange MO dyes, respectively. Nanocomposite (2) showed a capacity of 94.1 and 225.5 mg/g for CV and MO dyes, respectively. Nanocomposite (4) obtained after treatment of (1) with crystal violet proved successful adsorption of CV. Co-HGC (5) prepared without addition of silica has a capacity for CV equal to 192 mg/g, while it is 769.2 mg/g with MO. Electrostatics and π–π interactions of graphite and cobalt species in the nanocomposites with aromatic rings of cationic and anionic dyes are responsible for the adsorption. Yan et al. was the best model to describe column kinetics. The thomas column adsorption model showed that the maximum uptake capacity of (1) was 44.42 mg/g for CV and 32.62 mg/g for MO. for a column packed with 0.5 gm of (1) and dye concentration of 100 mg/L at a flow rate of 1 mL/min. The column was recycled three times with no noticeable clogging or degradation of nanocomposites. Thus, Co-HGC@SiO2 adsorbents can be used efficiently to treat water contaminated with cationic and anionic dyes.

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Chen, Xinyan, Qing Zhang, Jinliang Li, Ming Yang, Nana Zhao, and Fu-Jian Xu. "Rattle-Structured Rough Nanocapsules with in-Situ-Formed Gold Nanorod Cores for Complementary Gene/Chemo/Photothermal Therapy." ACS Nano 12, no. 6 (June 5, 2018): 5646–56. http://dx.doi.org/10.1021/acsnano.8b01440.

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Wang, Bao, Wenkuan Man, Haiyang Yu, Yang Li, and Feng Zheng. "Fabrication of Mo-Doped WO3 Nanorod Arrays on FTO Substrate with Enhanced Electrochromic Properties." Materials 11, no. 9 (September 5, 2018): 1627. http://dx.doi.org/10.3390/ma11091627.

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Well-oriented and crystalline WO3 nanorod arrays (WNRAs) decorated with Mo were synthesized on fluorine doped tin oxide (FTO) substrate by the hydrothermal method. The effects of Mo doping, hydrothermal reaction time, and hydrothermal temperature on the morphologies and electrochromic properties of as-prepared WNRAs were studied thoroughly. Scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and chronoamperometry techniques were used to characterize the structures and properties of obtained WNRAs. The results demonstrate that the average diameter of the as-prepared WNRAs ranged from 30 to 70 nm. During the decoration of Mo on the WNRAs, the growth density of as-prepared WNRAs decreased and the surfaces became rough. However, the decorated Mo on WNRAs synthesized at 180 °C for 5 h with a Mo/W mole ratio of 1:40 exhibited better electrochromic properties than single WNRAs. They exhibited high optical modulation (61.7%), fast bleaching/coloring response times (3 s/9 s), high coloration efficiency values (73.1 cm2/C), and good cycling stability.

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Guo, Huizhang, Peter Fuchs, Etienne Cabane, Benjamin Michen, Harald Hagendorfer, Yaroslav E. Romanyuk, and Ingo Burgert. "UV-protection of wood surfaces by controlled morphology fine-tuning of ZnO nanostructures." Holzforschung 70, no. 8 (August 1, 2016): 699–708. http://dx.doi.org/10.1515/hf-2015-0185.

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Abstract One of the most significant limitations for a wider utilisation of the renewable and CO2-storing resource wood is its low ultraviolet (UV) light stability. The protection of the wood surface without altering its aesthetic appeal requires an optically transparent but UV protective coating which should be strongly attached to the rough and inhomogeneous substrate. For this purpose, ZnO nanostructures were deposited onto the wood surface via a chemical bath deposition process. The morphology of crystalline ZnO was controlled by aluminium nitrate or ammonium citrate in the growth step resulting in nanorod arrays or platelet structures, respectively. Detailed structural, chemical and mechanical characterisations as well as accelerated weathering exposure revealed the effective performance of the platelet structure, which formed a dense and thin ZnO coating on spruce. The total colour change (ΔE in the CIE system) was calculated to be 20.5 for unmodified wood, while it was about three for the modified samples after 4 weeks accelerated weathering test. Moreover, the ZnO coating also suppressed crack initiation and propagation indicating a substantial increase in durability.

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Abdel-Aliem, Hanem A., Ahmed Y. Gibriel, Nagwa M. H. Rasmy, Ahmed F. Sahab, Aziza A. El-Nekeety, and Mosaad Attia Abdel-Wahhab. "Antifungal efficacy of chitosan nanoparticles against phytopathogenic fungi and inhibition of zearalenone production by Fusarium graminearum." Comunicata Scientiae 10, no. 3 (October 31, 2019): 338–45. http://dx.doi.org/10.14295/cs.v10i3.1899.

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Chitosan (COS) is a natural safe biopolymer that received great attention in agriculture, food, biomedical, pharmaceutical and environmental industries because their biocompatible, biodegradable, non-toxic and non-allergenic natures. The aims of the current study were to synthesize and characterize chitosan nanoparticles (COS-NPs), to evaluate their antifungal activity against phytopathogenic fungi and inhibition of zearalenone (ZEN) production by Fusarium graminearum. The results revealed that the deacetylation degree of COS was 86.9 0.44 %, the average of molar mass was 171.41 ± 0.29 g/mol, molecular weight was 244 ± 7 kDa and the concentration of free amino groups was 0.05 ± 0.019 mol L-1. COS-NPs showed the nanorod form with rough nature and particle size was around 180 nm. COS-NPs showed an excellent antifungal activity against Alternaria tenuis, Aspergillus niger, A. flavus, Baeuvaria bassiana, Fusarium graminearum, Fusarium oxysporum, Penicillium sp. and Sclerotium rolfsii in dose dependent manner. At a concentration of 800 ppm, it inhibits ZEN production by Fusarium graminearum. It could be concluded that COS-NPs are promise candidate as safe antifungal capable for the prevention of ZEN production.

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Xiao, Ting, Jin Li, Xinyan Zhuang, Wen Zhang, Shulin Wang, Xuelin Chen, Peng Xiang, Lihua Jiang, and Xinyu Tan. "Wide potential window and high specific capacitance triggered via rough NiCo2S4 nanorod arrays with open top for symmetric supercapacitors." Electrochimica Acta 269 (April 2018): 397–404. http://dx.doi.org/10.1016/j.electacta.2018.03.026.

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Gu, Qing, Jian Zhu, Guo-jun Weng, Jian-jun Li, and Jun-wu Zhao. "Au nanorod core in an AgPt cage: Synthesis of Au@AgPt core/cage nanoframes with rough surface and controllable geometry by galvanic replacement." Colloids and Surfaces A: Physicochemical and Engineering Aspects 662 (April 2023): 131040. http://dx.doi.org/10.1016/j.colsurfa.2023.131040.

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Cansizoglu, Mehmet, Robert Engelken, Hye-Won Seo, and Tansel Karabacak. "High Optical Absorption of Indium Sulfide Nanorod Arrays Formed by Glancing Angle Deposition." MRS Proceedings 1165 (2009). http://dx.doi.org/10.1557/proc-1165-m08-27.

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AbstractIndium (III) sulfide has recently attracted much attention due to its potential in optical sensors as a photoconducting material and in photovoltaic applications as a wide direct bandgap material. On the other hand, optical absorption properties are key parameters in developing highly photosensitive photodetectors and high efficiency solar cells. We show that indium sulfide nanorod arrays produced by glancing angle deposition techniques have superior absorption and low reflectance properties compared to conventional flat thin film counterparts. We observed an optical absorption value of approximately 96% for nanorods, in contrast to 80% for conventional amorphous-to-polycrystalline thin films of indium sulfide. A photoconductivity response was also observed in the nanorod samples, whereas no measurable photoresponse was detected in conventional thin films. We give a preliminary description of the enhanced light absorption properties of the nanorods by using Shirley-George Model that predicts enhanced diffuse scattering and reduced reflection of light due the rough morphology.

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Zhang, Xuan, Yanhua Wang, Dongmei Zhang, and Zhencheng Tao. "A Comparative Study of CoNi-LDH/ZnO Film for Photocathodic Protection Applications in the Marine Environment." Frontiers in Materials 9 (June 3, 2022). http://dx.doi.org/10.3389/fmats.2022.904555.

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In this study, two kinds of Co–Ni-layer double hydroxide (LDH)/ZnO films were prepared with different morphologies by a simple electrochemical method. The properties of the films were investigated by SEM, XRD, UV–Vis DRS, XPS, and electrochemical techniques. It was found that Co–Ni-LDH-modified ZnO films exhibited excellent photocathodic properties in a scavenger-free environment. This is mainly due to the absorption of visible light by LDH, the formation of p–n heterojunction, and the depletion of photo-generated holes by the cycling process of Co (II)/Co (III). Compared with CoNi-LDH/ZnO nanorods, CoNi-LDH/ZnO nanoclusters showed better photocathodic protection performance and physical barrier effect. Under illumination conditions, the rough surface of ZnO nanoclusters and the deposition of a large amount of LDH can provide more photoelectrochemical active sites, thus improving the light absorption capacity and photocathodic protection performance of CoNi-LDH/ZnO nanoclusters. Under dark conditions, the physical barrier effect of CoNi-LDH/ZnO nanoclusters was also enhanced by the dense ZnO nanoclusters and thick CoNi-LDH layers.

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Li, Xinxin, Xiang Lin, Shuang Lin, Shijie Zhou, Guoqiang Fang, Haiyan Zhao, Li Wang, and Shulin Cong. "From Dilute to Multiple Layers: Bottom‐Up Self‐Assembly of Rough Gold Nanorods as SERS Platform for Quantitative Detection of Thiram in Soil." Advanced Materials Interfaces, May 24, 2021, 2100412. http://dx.doi.org/10.1002/admi.202100412.

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Subramaniyan, Pulikkutty, MANJULA NATESAN, Tse-Wei Chen, Shen-Ming Chen, Wedad A. Al-onazi, Amal M. Al-Mohaimeed, Heng Yuan Hsu, Chun Wei Huang, Ming-Chin Yu, and Mohamed Soliman Elshikh. "Gadolinium Manganese Oxide Nanorod Catalyst via a Facile Hydrothermal Approach: Application for Voltammetric Sensing of Antibiotic Drug Rifampicin in Pharmaceutical and Biological Samples." Journal of The Electrochemical Society, May 18, 2022. http://dx.doi.org/10.1149/1945-7111/ac7104.

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Abstract This study constructs a rough-surfaced rod structure of gadolinium manganese oxide fabricated by a glassy carbon electrode (GMO NRs/GCE). The resulting nanostructure was applied as an efficient electrocatalyst for the antibiotic drug rifampicin (RIF) sensor. Studies included a crystal structure by X-ray diffraction, a morphology study using field emission scanning electron microscopy, transmission electron microscopy, a functional group examination by Fourier transform infrared spectroscopy, and an elemental state study by X-ray photoelectron spectroscopy. As-synthesized samples were characterized systematically by electrochemical methods including cyclic voltammetry (CV), differential pulse voltammetry detection, and electrochemical impedance spectroscopy. The improving electrochemical behaviors of GMO NRs could be ascribed to the outstanding electrocatalytic activity with the high surface area and good conductivity. Under the experimental conditions, the quantitative measurement of RIF resulted in a large and wide linear range of 0.15 to 136.15 µM, a low detection limit was calculated to be 0.071 µM. The sensor had good selectivity, reproducibility, and high stability. Importantly, the GMO NRs sensor was effectively applied to determine RIF in serum, urine, and pharmaceutical samples with satisfactory accuracy and recovery.

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