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Статті в журналах з теми "Platinum Dioxide"
Huang, Shengyang, Prabhu Ganesan, and Branko N. Popov. "Titanium Dioxide-Supported Platinum Catalysts." ECS Transactions 41, no. 1 (December 16, 2019): 2255–68. http://dx.doi.org/10.1149/1.3635758.
Повний текст джерелаMaya, L., E. W. Hagaman, R. K. Williams, G. D. Del Cul та J. N. Fiedor. "Carbon in α-Platinum Dioxide". Journal of Physical Chemistry B 102, № 11 (березень 1998): 1951–55. http://dx.doi.org/10.1021/jp9802331.
Повний текст джерелаOleksenko, L. P. "Platinum containing sensor nanomaterials based on tin dioxide to detect methane in air." Functional materials 25, no. 4 (December 19, 2018): 741–47. http://dx.doi.org/10.15407/fm25.04.741.
Повний текст джерелаUrsov, E. D., M. S. Kondratenko, and M. O. Gallyamov. "Electrodeposition of platinum from carbon dioxide based supercritical electrolyte." Доклады Академии наук 489, no. 6 (December 23, 2019): 606–10. http://dx.doi.org/10.31857/s0869-56524896606-610.
Повний текст джерелаAso, Ryotaro, Hajime Hojo, Yoshio Takahashi, Tetsuya Akashi, Yoshihiro Midoh, Fumiaki Ichihashi, Hiroshi Nakajima, et al. "Direct identification of the charge state in a single platinum nanoparticle on titanium oxide." Science 378, no. 6616 (October 14, 2022): 202–6. http://dx.doi.org/10.1126/science.abq5868.
Повний текст джерелаLintz, Hans Guenther. "Spectrophotometric determination of platinum in cordierite-supported platinum-tin dioxide catalysts." Industrial & Engineering Chemistry Research 30, no. 8 (August 1991): 2012–13. http://dx.doi.org/10.1021/ie00056a052.
Повний текст джерелаZhang, Dongzhi, Maosong Pang, Junfeng Wu, and Yuhua Cao. "Experimental and density functional theory investigation of Pt-loaded titanium dioxide/molybdenum disulfide nanohybrid for SO2 gas sensing." New Journal of Chemistry 43, no. 12 (2019): 4900–4907. http://dx.doi.org/10.1039/c9nj00399a.
Повний текст джерелаMaya, L., L. Riester, T. Thundat, and C. S. Yust. "Characterization of sputtered amorphous platinum dioxide films." Journal of Applied Physics 84, no. 11 (December 1998): 6382–86. http://dx.doi.org/10.1063/1.368883.
Повний текст джерелаVolochaev, V. A., I. N. Novomlinskii, E. M. Bayan, and V. E. Guterman. "Nanostructured Platinum Catalyst Supported by Titanium Dioxide." Russian Journal of Electrochemistry 55, no. 10 (October 2019): 1021–30. http://dx.doi.org/10.1134/s1023193519090143.
Повний текст джерелаAhmed, Luma M., Irina Ivanova, Falah H. Hussein, and Detlef W. Bahnemann. "Role of Platinum Deposited on TiO2in Photocatalytic Methanol Oxidation and Dehydrogenation Reactions." International Journal of Photoenergy 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/503516.
Повний текст джерелаДисертації з теми "Platinum Dioxide"
Chu, Yang. "Enhancement of Photocatalytic Activity by Site Poisoning Platinum Doped Titanium Dioxide." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1417454495.
Повний текст джерелаBayrakceken, Ayse. "Platinum And Platinum-ruthenium Based Catalysts On Various Carbon Supports Prepared By Different Methods For Pem Fuel Cell Applications." Phd thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609448/index.pdf.
Повний текст джерелаPlatinum/MWCNT>
PlatinumBP2000. By means of the oxygen reduction reaction (ORR), the number of electrons transferred per oxygen molecule was calculated as 3.5, 3.6 and 3.7 for Platinum/BP2000, Platinum/VXR and Platinum/MWCNT, respectively. The microwave irradiation was used to prepare platinum on VX, Regal and BP2000 and platinum-ruthenium on VX. The effects of microwave duration, base concentration, carbon support used and surfactant/precursor ratios were investigated. The particle sizes of the catalysts were ranging between 2-6 nm. The prepared catalysts were characterized by XRD, XPS, and then PEMFC tests were performed. The performance was ordered as Platinum/VX>
Platinum/Regal>
Platinum/BP2000. The power losses arising from carbon dioxide in hydrogen feed were decreased by using prepared platinum-ruthenium based catalysts.
Ozcan, Ozlem. "Artificial Photosynthesis: Dye Assisted Photocatalytic Reduction Of Carbon Dioxide Over Pure And Platinum Containing Titania." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606313/index.pdf.
Повний текст джерела&ndash
bipyridyl) ruthenium (II) chloride hexahydrate) , BrGly (1,7-dibromo-N,N&rsquo
-(t-butoxycarbonyl-methyl)-3,4:9,10-perylene-diimide) and BrAsp (1,7-dibromo-N,N&rsquo
-(S-(1-t-butoxy-carbonyl-2-t-butoxycarbonyl-methyl)-ethyl)- 3,4:9,10-perylenediimide). Their SEM, XRD, UV-Vis spectroscopy and hydrogen chemisorption characterizations are performed. Reaction tests are performed for the catalysts under UV and visible light. The only quantifiable reaction product was methane. With RuBpy containing catalysts hydrogen production was observed under UV light, but not quantified. The results indicated that Pt addition resulted in higher yields in UV experiments. The presence of light harvesting molecules resulted in increase in photocatalytic activity for thin films, whereas it resulted in no change or decrease for the thick films. The latter case may occur due to the UV filtering effect of these dyes. Use of dyes (with visible range absorption bands) as promoters made visible light excitation possible. This resulted in photocatalytic activity under visible light, which was not observed with unpromoted and Pt promoted TiO2 thin film catalysts. Under visible light methane was the only quantified photoreduction product. CO evolution was also observed, but not quantified. The photocatalytic activities of the dye promoted TiO2 were in the order of RuBpy~BrAsp>
BrGly. The methane yields of visible light experiments were one order of magnitude lower than the ones under UV light.
Photinon, Kanokorn. "DEVELOPMENT OF DIMETHYL ETHER (DME) AND CARBON DIOXIDE SENSORS USING PLATINUM NANOPARTICLES AND THICK FILM TECHNOLOGY." Case Western Reserve University School of Graduate Studies / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=case1164899809.
Повний текст джерелаMotsegood, Perry Nelson. "Improved performance of alkaline batteries via magnetic modification and voltammetric detection of breath acetone at platinum electrodes." Diss., University of Iowa, 2012. https://ir.uiowa.edu/etd/4883.
Повний текст джерелаGrant, Ann W. "Surface studies of model catalysts using metal atoms and particles on ZnO(0001)-Zn and -O and TiO₂(110) /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/8499.
Повний текст джерелаFalch, Anzel. "Synthesis, characterisation and potential employment of Pt–modified TiO2 photocatalysts towards laser induced H2 production / Falch A." Thesis, North-West University, 2011. http://hdl.handle.net/10394/7346.
Повний текст джерелаThesis (M.Sc. (Chemistry))--North-West University, Potchefstroom Campus, 2012.
Soufi, Jihène. "Traitement des gaz d’échappement des groupes électrogènes alimentés par des gasoils, fuels marines ou bio-huiles : élimination des HAP en présence ou non de SOx." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE1120.
Повний текст джерелаPonczek, Milena 1986. "Degradação de compostos orgânicos voláteis em fase gasosa através da fotocatálise com luz UV, TiO2 e TiO2/Pt." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266075.
Повний текст джерелаDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Química
Made available in DSpace on 2018-08-26T01:40:52Z (GMT). No. of bitstreams: 1 Ponczek_Milena_M.pdf: 3719180 bytes, checksum: efe8192ba2f868976819b64f089b973c (MD5) Previous issue date: 2014
Resumo: Compostos orgânicos voláteis, ou COV, são uma importante classe de poluentes do ar comumente encontrados na atmosfera ao nível do solo, nos centros urbanos e industriais. O tratamento de COV provenientes de fontes industriais através da fotocatálise heterogênea é uma técnica eficiente para a degradação de baixas concentrações de uma grande gama de compostos orgânicos diferentes (hidrocarbonetos, aromáticos, alcóois, cetonas, etc) operando em condições ambientes. Um dos problemas que ainda impede sua aplicação industrial é a desativação do catalisador e por isso muitos grupos de pesquisa têm se dedicado ao estudo desta técnica na tentativa de melhorá-la e solucionar estes entraves. A atividade fotocatalítica do TiO2 pode ser melhorada pela adição de metais na sua superfície. Neste trabalho, preparou-se catalisadores de TiO2 por impregnação de Pt (1% m/m). A platina foi reduzida com NaBH4, fazendo-se posteriormente caracterização por DRX, XPS, UV ¿Vis, BET, Quimissorção de H2 e MEV/EDS para a validação do método de síntese. Todas as técnicas confirmaram que o método de redução com NaBH4 não modifica estruturalmente o TiO2, mantendo a sua cristalinidade e a razão de anatase/rutilo. A técnica de XPS indicou a presença de metal em estado de oxidação reduzido. Para o estudo da influência da impregnação de Pt no óxido titânio, foram realizados experimentos de fotocatálise em um reator recoberto com TiO2puro, e em um reator recoberto com TiO2/Pt variando-se a concentração de entrada (de 50 à 500 ppmv) ou o tempo de residência (de 10 à 50 s) para os COV n-octano, iso-octano, n-hexano e ciclohexano. Utilizou-se reatores tubulares com volume interno de 1160 ml com os catalisadores, dióxido de titânio puro ou modificado, imobilizados na parede interna dos reatores. A fonte de radiação UV foi uma lâmpada do tipo germicida de 100W de potência, caracterizada por comprimentos de onda de 254 nm (banda de emissão UV-C). As concentrações na entrada e na saída do reator foram analisadas através de um monitor contínuo de hidrocarbonetos do tipo FID. A adição de platina ao TiO2 gera uma melhoria na eficiência fotocatalítica nas reações de oxidação de COV; a conversão dos COV utilizando o catalisador impregnado com platina atingiu 99 % de conversão, enquanto que TiO2 puro atingiu, no máximo 93%
Abstract: Volatile organic compounds, or VOC, are an important class of air pollutants commonly found in the atmosphere at ground level in urban and industrial centers. The treatment of VOC from industrial sources by oxidative photodegradation is presented as a good alternative. These systems are promising as pollution control technology, since they can decompose low concentrations of VOC efficiently and in ambient conditions. The recombination of electrons and holes formed on the surface of TiO2 is a factor that limits the photocatalytic efficiency. For this reason, many efforts have been made to maximize the separation of charges, in order to improve the photocatalytic efficiency. A proposed alternative is to add noble metals to TiO2 structure. This work aims to study the degradation of volatile organic compounds by heterogeneous photocatalytic oxidation using ultraviolet light, bare TiO2 and TiO2 impregnated with 1% w/w platinum as catalysts. TiO2 catalysts were prepared by impregnating Pt on TiO2 structure by reduction method with NaBH4. The photocatalysts were characterized using analytical techniques like XRD, XPS, UV-Vis Diffuse Reflectance, BET, H2 Chemisorption and SEM/EDS to validate the method of synthesis. All analysis confirmed that the reduction method with NaBH4 do not structurally modify TiO2, keeping its crystallinity and the ratio of anatase/rutile. XPS indicates the presence of metal in reduced oxidation state. To study the influence of the impregnation of platinum on titania, after synthesis and characterization, the study of gas-solid heterogeneous photocatalytic oxidation of some VOC was carried out at room temperature with annular plug flow reactors (1160 ml), one coated with pure TiO2 and another coated with TiO2/Pt, the catalysts were immobilized on reactor¿s internal walls. The photocatalystic tests were performed for n-octane , iso-octane, n-hexane and ciclohexane varying the inlet concentration (from 50 to 500 ppm) or residence time (from 10 to 50 s). The light source was an UV lamp (100 W, wavelengths with a maximum intensity at 254 nm. Reactants and products concentrations were analyzed using a continuous monitoring with a total hydrocarbon analyzer with flame ionization detector (FID). The addition of platinum to TiO2 improves photocatalytic efficiency of oxidation of VOC; conversion of the VOC using impregnated catalyst reached 99%, whereas pure TiO2 was at most 93%. No título do trabalho, a fórmula TiO2 deve vir com o "2" em subscrito, pois trata-se da fómula química da substância
Mestrado
Processos em Tecnologia Química
Mestra em Engenharia Química
Modingwane, Boitshoko Goitseone. "Investigation of Pt supported on carbon, ZrO2, Ta2O5 and Nb2O5 as electrocatalysts for the electro–oxidation of SO2 / Boitshoko Goitseone Modingwane." Thesis, North-West University, 2011. http://hdl.handle.net/10394/5557.
Повний текст джерелаThesis (M.Sc. (Chemistry))--North-West University, Potchefstroom Campus, 2011.
Книги з теми "Platinum Dioxide"
Stalder, Michael. Functional one-dimensional nanostructures of silicon oxide, titanium dioxide and platinum. 2007.
Знайти повний текст джерелаЧастини книг з теми "Platinum Dioxide"
Vannice, M. A., P. Odier, M. Bujor, and J. J. Fripiat. "Titanium Dioxide Single-Crystal and Powder Surfaces in the Presence and Absence of Platinum." In Catalyst Characterization Science, 98–110. Washington, DC: American Chemical Society, 1985. http://dx.doi.org/10.1021/bk-1985-0288.ch009.
Повний текст джерелаTiwari, Rashmi, Sachin Singh, Pooja Lohia, and D. K. Dwivedi. "Sensitivity Enhancement of Platinum Diselenide Based SPR Sensor Using Titanium Dioxide as Adhesion Layer." In Lecture Notes in Electrical Engineering, 249–55. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2631-0_23.
Повний текст джерелаGläser, Roger, Jörg Williardt, David Bush, Michael J. Lazzaroni, and Charles A. Eckert. "Application of High-Pressure Phase Equilibria to the Selective Oxidation of Alcohols over Supported Platinum Catalysts in Supercritical Carbon Dioxide." In ACS Symposium Series, 352–64. Washington, DC: American Chemical Society, 2003. http://dx.doi.org/10.1021/bk-2003-0852.ch024.
Повний текст джерелаFelthouse, T. R., D. A. Berkel, S. R. Jost, E. L. McGrew, and A. Vavere. "Platinum-Catalyzed Sulfur Dioxide Oxidation Revisited." In Advanced Catalysts and Nanostructured Materials, 91–115. Elsevier, 1996. http://dx.doi.org/10.1016/b978-012508460-4/50006-1.
Повний текст джерелаCrundwell, Frank K., Michael S. Moats, Venkoba Ramachandran, Timothy G. Robinson, and William G. Davenport. "Sulfur Dioxide Capture in Sulfuric Acid and Other Products." In Extractive Metallurgy of Nickel, Cobalt and Platinum Group Metals, 247–57. Elsevier, 2011. http://dx.doi.org/10.1016/b978-0-08-096809-4.10020-6.
Повний текст джерелаTripathy, S. "Top-down and Bottom-up Approaches for Synthesis of Nanoparticles." In Materials Research Foundations, 92–130. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902370-4.
Повний текст джерелаAlberto Mendoza Pérez, Jorge, Abril Gardenia Martínez Castillo, Jorge Octaviano Gomez Castrejon, and Juan Carlos Gómez Buendía. "Electrolytic Cell Applied for the Breakdown of Endocrine Disrupting Drugs in Aqueous Tributaries." In Electrodialysis. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.93018.
Повний текст джерелаTomita, Yugo, and Yoshio Hori. "Electrochemical reduction of carbon dioxide at a platinum electrode in acetonitrile-water mixtures." In Studies in Surface Science and Catalysis, 581–84. Elsevier, 1998. http://dx.doi.org/10.1016/s0167-2991(98)80826-4.
Повний текст джерелаMeurig Thomas, John. "The Fuel Cell." In Albemarle Street, 108–18. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780192898005.003.0006.
Повний текст джерелаSeshan, K., H. W. ten Barge, W. Halty, A. N. J. van Keulen, and J. R. H. Ross. "Carbon dioxide reforming of methane in the presence of nickel and platinum catalysts supported on ZrO2." In Studies in Surface Science and Catalysis, 285–90. Elsevier, 1994. http://dx.doi.org/10.1016/s0167-2991(08)63882-3.
Повний текст джерелаТези доповідей конференцій з теми "Platinum Dioxide"
Alaei-Sheini, Navid, and Mahsa Rohani. "Resistive Switching in Platinum/Titanium Dioxide Schottky Diode." In 2019 27th Iranian Conference on Electrical Engineering (ICEE). IEEE, 2019. http://dx.doi.org/10.1109/iraniancee.2019.8786517.
Повний текст джерелаChen, Chin-Tai, and Chung-Hao Chen. "Inkjet Printing and Characterization of Titanium Dioxide and Platinum Electrodes For Dye-sensitized Solar Cells (DSSCs)." In 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC). IEEE, 2019. http://dx.doi.org/10.1109/pvsc40753.2019.8981294.
Повний текст джерелаRousselet, Yohann, Gopinath R. Warrier, and Vijay K. Dhir. "An Experimental Study of Heat Transfer From Small Horizontal Cylinders at Near-Critical Pressures." In ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44493.
Повний текст джерелаNguyen, Crystal, Daniel Volpe, William Wilson, Mansour Zenouzi, and Jason Avent. "Efficiency Experiments on Modified Dye Sensitized Solar Cells." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-68773.
Повний текст джерелаShibahara, Makoto, Qiusheng Liu, and Katsuya Fukuda. "Transient Heat Transfer for Carbon Dioxide Flowing Over a Horizontal Plate With Exponentially Increasing Heat Input." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-68603.
Повний текст джерелаPeng, Edwin, and Halil Berberoglu. "Fabrication of a Dye Sensitized Solar Cell and Its Performance Dependence on Temperature and Irradiance." In ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44349.
Повний текст джерелаTurcotte, S. B., R. E. Benner, A. M. Riley, J. Li, and M. E. Wadsworth. "Raman Spectroscopic Analysis of Electrochemically Oxidized Pyrite and Galena." In Laser Applications to Chemical Analysis. Washington, D.C.: Optica Publishing Group, 1992. http://dx.doi.org/10.1364/laca.1992.wc9.
Повний текст джерелаMabiza, M. J., C. Mbohwa, and M. Mutingi. "Life cycle inventory analysis and equivalent carbon dioxide emissions calculation of the mining and ore concentration processes of PGM at the anglo American Platinum Ltd, South Africa." In 2014 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM). IEEE, 2014. http://dx.doi.org/10.1109/ieem.2014.7058792.
Повний текст джерелаShibahara, Makoto, Qiusheng Liu, and Katsuya Fukuda. "Effect of Heater Configurations on Transient Heat Transfer for Various Gases Flowing Over a Twisted Heater." In 17th International Conference on Nuclear Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/icone17-75260.
Повний текст джерелаJakkaraju, Madhuri, and Vasudha Patri. "S. I. Engine Pollution Control Using Low-Cost Palletized Catalytic Converter." In ASME 7th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2004. http://dx.doi.org/10.1115/esda2004-58248.
Повний текст джерела