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Статті в журналах з теми "Catalytic nano-heterostructures"
Joshi, Shravanti, Ram Kumar C. B., Lathe A. Jones, Edwin L. H. Mayes, Samuel J. Ippolito, and Manorama V. Sunkara. "Modulating interleaved ZnO assembly with CuO nanoleaves for multifunctional performance: perdurable CO2 gas sensor and visible light catalyst." Inorganic Chemistry Frontiers 4, no. 11 (2017): 1848–61. http://dx.doi.org/10.1039/c7qi00474e.
Повний текст джерелаChen, Chen, Li He, Chengxin Jiang, Lingxiu Chen, Hui Shan Wang, Xiujun Wang, Ziqiang Kong, et al. "Directional etching for high aspect ratio nano-trenches on hexagonal boron nitride by catalytic metal particles." 2D Materials 9, no. 2 (March 1, 2022): 025015. http://dx.doi.org/10.1088/2053-1583/ac5461.
Повний текст джерелаPranesh, Shubha, and Jayalakshmi Nagaraju. "Nano Sized ZnO/MnO2/Gd2O3 Ternary Heterostructures for Enhanced Photocatalysis." Current Nanomaterials 5, no. 1 (June 25, 2020): 36–46. http://dx.doi.org/10.2174/2405461504666191202105734.
Повний текст джерелаFörster, Christian, Volker Cimalla, M. Stubenrauch, Carsten Rockstuhl, Klemens Brueckner, Matthias A. Hein, Jörg Pezoldt, and Oliver Ambacher. "Micromachining of Novel SiC on Si Structures for Device and Sensor Applications." Materials Science Forum 527-529 (October 2006): 1111–14. http://dx.doi.org/10.4028/www.scientific.net/msf.527-529.1111.
Повний текст джерелаWang, Kexin, Lina Liu, Yongsheng Zhang, Jianfeng Su, Ruirui Sun, Jiao Zhang, Yajie Wang, and Mingyi Zhang. "Synthesis and Visible Light Catalytic Performance of BiOI/Carbon Nanofibers Heterojunction." Catalysts 12, no. 12 (December 1, 2022): 1548. http://dx.doi.org/10.3390/catal12121548.
Повний текст джерелаJain, Noopur, and Ahin Roy. "Phase & morphology engineered surface reducibility of MnO2 nano-heterostructures: Implications on catalytic activity towards CO oxidation." Materials Research Bulletin 121 (January 2020): 110615. http://dx.doi.org/10.1016/j.materresbull.2019.110615.
Повний текст джерелаLian, Tianquan. "(Invited) Light Driven H2 Generation in Pt-Tipped CdS Nanorods: Dependence on the Pt Size and CdS Rod Length." ECS Meeting Abstracts MA2022-01, no. 13 (July 7, 2022): 932. http://dx.doi.org/10.1149/ma2022-0113932mtgabs.
Повний текст джерелаAkbar, Sheikh Ali. "(Invited) Ceramic Nano-Heterostructures By Materials Design: Platforms for Sensing Applications – Opportunities and Challengess." ECS Meeting Abstracts MA2022-01, no. 52 (July 7, 2022): 2141. http://dx.doi.org/10.1149/ma2022-01522141mtgabs.
Повний текст джерелаSaleem, Zubia, Erum Pervaiz, M. Usman Yousaf, and M. Bilal Khan Niazi. "Two-Dimensional Materials and Composites as Potential Water Splitting Photocatalysts: A Review." Catalysts 10, no. 4 (April 24, 2020): 464. http://dx.doi.org/10.3390/catal10040464.
Повний текст джерелаJia, Changchao, Ping Yang, and Baibiao Huang. "Uniform Ag/AgCl Necklace-Like Nano-Heterostructures: Fabrication and Highly Efficient Plasmonic Photocatalysis." ChemCatChem 6, no. 2 (December 30, 2013): 611–17. http://dx.doi.org/10.1002/cctc.201300804.
Повний текст джерелаДисертації з теми "Catalytic nano-heterostructures"
Chen, Yu-Chih, and 陳宇志. "Semiconductor Nano-heterostructures: Synthesis and Their Catalytic Applications." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/y66rvk.
Повний текст джерела國立交通大學
材料科學與工程學系所
103
In this dissertation, we focused on the catalytic properties of semiconductor heterostructures, which included semiconductor-graphene: ZnO-rGO composites, semiconductor-metal: ZnSe0.5(N2H4)-Au nanowires, semiconductor- semiconductor- metal: In2O3-TiO2-Pt nanobelts and semiconductor-metal: Au@Cu7S4 yolk-shell nanoparticles. Due to the difference in band structure between the constituents, the excited electrons in one of the semiconductor domain would preferentially transfer to the other semiconductor or metal with lower conduction band or work function under light illumination, leading to remarkable charge separation property. The enchantment in photocatalytic activity of pollutant degradation or photoconversion efficiency in photoelectrochemical application therefore can be achieved. The charge transfer behavior at the interface of heterostructures was explored by using time-resolved photoluminescence (TRPL). Through quantitatively analyzing the electron transfer event with TRPL, the correlation between the charge transfer dynamic and the difference in band diagram for semiconductor heterostrucutres could be further established. In addition, the Au@Cu7S4 yolk-shell nanoparticles (NPs) were synthesized using Au@Cu2O core-shell NPs as a sacrificial template and served as peroxidase mimics to investigate their peroxidase-like catalytic properties by using 3,3',5,5'-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide. First, the ZnO-rGO composites were synthesized by hydrothermal method. The graphene oxide (GO) sheets were first prepared by Hummers method, followed by the growth of ZnO on the sheets during the hydrothermal process; in the meantime, the graphene oxide could be reduced to reduced graphene oxide (rGO). By modulating the amount of GO nanosheets added, the content of rGO in the resultant ZnO–rGO composites can be readily controlled. Due to the difference in band structures for ZnO–rGO composites, the photoexcited electrons of ZnO would preferentially transfer to rGO, leading to charge carrier separation. TRPL spectra revealed that an increased electron-transfer rate constant was observed for ZnO–rGO with increasing rGO contents, suggesting that an increased number of photoexcited charge carriers were separated and available for photocatalysis utilization. The photocatalytic properties of the ZnO–rGO composites were investigated by using gaseous acetaldehyde (CH3CHO), a typical volatile organic compound (VOC), as the test pollutant. Furthermore, the photoactivity of ZnO–rGO toward electrolytic water oxidation was also evaluated, which revealed 50% increase in water oxidation current over pure ZnO under white light illumination. The demonstration from this work may facilitate the use of ZnO–rGO composites in photodegradation of VOCs as well as for photoelectrochemical applications. Second, ZnSe0.5(N2H4) inorganic-organic hybrids were synthesized using a facile hydrazine-assisted hydrothermal method. By modulating the volume ratio of hydrazine hydrate to deionized water employed in the synthesis, the morphology of the grown ZnSe0.5(N2H4) can be varied, which included nanowires, NBs and nanoflakes. With the relatively long exciton lifetime and highly anisotropic structure, ZnSe0.5(N2H4) nanowires performed much better in the photodegradation of rhodamine B (RhB) than the other two counterpart products. As compared to pure ZnSe NPs and single-phase ZnSe nanowires obtained from further processing ZnSe0.5(N2H4), the ZnSe0.5(N2H4) hybrid nanowires exhibited superior photocatalytic performance under visible light illumination. With further decorated Au particles, TRPL spectra showed that the photoexcited electrons in ZnSe0.5(N2H4) nanowires can be transported to the decorated Au, which enabled a fuller extent of participation of charge carriers in the photocatalytic process and thus conduced to a significant enhancement in the photocatalytic activity. Third, we investigated the interfacial charge carrier dynamics of the three-component semiconductor−semiconductor−metal heterojunction system. The samples were prepared by selectively depositing Pt NPs on the TiO2 surface of In2O3-decorated TiO2 nanobelts (In2O3−TiO2 nanobelts (NBs)). For In2O3−TiO2 NBs, because of the difference in band structures between In2O3 and TiO2, the photoexcited electrons of In2O3 nanocrystals would preferentially transfer to TiO2 NBs to cause charge carrier separation. With the introduction of Pt on TiO2 surface, a fluent electron transfer from In2O3, through TiO2, and eventually to Pt was achieved, giving rise to the increasingly pronounced charge separation property. TRPL spectra were measured to quantitatively analyze the electron transfer event between In2O3 and TiO2 for In2O3−TiO2 NBs and its dependence on Pt deposition. Upon the deposition of Pt, In2O3−TiO2 NBs showed an increased apparent electron-scavenging rate constant, fundamentally consistent with the result of their performance evaluation in photocatalysis. In the final part, we presented the peroxidase-like catalytic properties of Au@Cu7S4 yolk-shell NPs synthesized by using Au@Cu2O core-shell nanostructures as templates via Kirkendall effect. The TMB oxidation results revealed that the Au@Cu7S4 yolk-shell nanopartilces had remarkable activity in the generation of ∙OH radicals in the existence of H2O2. Due to their unique structure, the Au core can provide sufficient active sites for H2O2 adsorption as compared to Au@Cu2O core-shell samples. On the other hand, the Cu7S4 hollow structures for Au@Cu7S4 yolk-shell samples exposed higher surface area than that of Cu2O for Au@Cu2O core-shell samples. The RhB degradation test demonstrated that the present yolk-shell samples could practically be applied in degradation of organic pollutant with hydrogen peroxide as well.
Jain, Noopur. "Engineered Catalytic Metal—Metal-Oxide Nano-heterostructures for CO Oxidation." Thesis, 2019. https://etd.iisc.ac.in/handle/2005/5114.
Повний текст джерелаЧастини книг з теми "Catalytic nano-heterostructures"
Netzer, Falko P., and Claudine Noguera. "Synopsis and outlook." In Oxide Thin Films and Nanostructures, 263–68. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198834618.003.0009.
Повний текст джерелаТези доповідей конференцій з теми "Catalytic nano-heterostructures"
Biyikli, Necmi, Cagla Ozgit-Akgun, Hamit Eren, Ali Haider, Tamer Uyar, Fatma Kayaci, Mustafa Ozgur Guler, et al. "Template-assisted synthesis of III-nitride and metal-oxide nano-heterostructures using low-temperature atomic layer deposition for energy, sensing, and catalysis applications (Presentation Recording)." In SPIE Nanoscience + Engineering, edited by Nobuhiko P. Kobayashi, A. Alec Talin, M. Saif Islam, and Albert V. Davydov. SPIE, 2015. http://dx.doi.org/10.1117/12.2190261.
Повний текст джерела