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An Infrared Study Of Isotopic Exchange During Methanation Over Supported Rhodium Catalysts An Inverse Spillover Effect
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Book Synopsis An Infrared Study of Isotopic Exchange During Methanation Over Supported Rhodium Catalysts; An Inverse Spillover Effect by : M. A. Henderson
Download or read book An Infrared Study of Isotopic Exchange During Methanation Over Supported Rhodium Catalysts; An Inverse Spillover Effect written by M. A. Henderson and published by . This book was released on 1985 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Infrared spectroscopy has been employed to study the reduction of carbon dioxide on supported catalyst films. The investigation included isotopic labeling using deuterium as the reduction gas. Isotopic exchange was observed for both carbon dioxide/D2 and methane/deuterium mixtures. The mechanism of this isotopic exchange involves migration of hydrogen from the support to the rhodium sites, an inverse spillover effect. A key intermediate in the dissociation of carbon dioxide on the supported Rh films was a carbonyl hydride species.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1985 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1985 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fossil Energy Update written by and published by . This book was released on 1985 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics Briefs written by and published by . This book was released on 1985 with total page 1224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Infrared Study of the Hydrogenation of Carbon Dioxide on Supported Rhodium Catalysts by : M. A. Henderson
Download or read book An Infrared Study of the Hydrogenation of Carbon Dioxide on Supported Rhodium Catalysts written by M. A. Henderson and published by . This book was released on 1985 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: An infrared study of the methanation of CO2 on supported Rh catalysts has been performed. This reaction has been shown to occur over these catalysts with higher turnover frequency at a given temperature and Rh loading than does the methanation of CO. A support effect has been demonstrated for the reaction over the supported Rh catalysts (TiO2 Al2O3 SiO2 in reactivity). A key surface intermediate during the methanation reaction is a carbonyl hydride species, as evidenced by a prominent infrared band in the 2020-2040/cm region which shifts by 5-10/cm when D2 is substituted for H2 in the reaction mixture. This carbonyl hydride species can be produced in the absence of H2 by migration of H from the support to Rh. The dissociation of CO2 on supported Rh has been shown to be enhanced by the presence of H2 and impurity boron. Originator-supplied keywords include: Infrared spectroscopy, Carbon dioxide, Hydrogenation, Methanation, and Supported rhodium catalysts.
Book Synopsis An Infrared Study of the Dissociation of Carbon Dioxide Over Supported Rhodium Catalysts by : M. A. Henderson
Download or read book An Infrared Study of the Dissociation of Carbon Dioxide Over Supported Rhodium Catalysts written by M. A. Henderson and published by . This book was released on 1985 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: An infrared study has been performed concerning the possible dissociation of CO2 on supported Rh catalyst films. The data indicate that CO2 does dissociate on Rh/TiO2 and Rh/Al2O3 to form a carbonyl hydride species in accord with the work of Solymosi. This dissociation process is considerably enhanced by the presence of a small amount of hydrogen gas, but will proceed in the absence of hydrogen gas with the assistance of hydrogen migration from the support. Impurity boron also enhances the formation of the carbonyl hydride species, and hence CO2 dissociation, when it is present in the supported Rh films. Author finished keywords: Infrared spectroscopy, Carbon dioxide, Methanation, Supported rhodium catalysts.
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1985 with total page 966 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1985-03 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindeks written by and published by . This book was released on 1986 with total page 1390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gas Abstracts written by and published by . This book was released on 1986 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index: Keyword A-L by :
Download or read book Government Reports Annual Index: Keyword A-L written by and published by . This book was released on 1985 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :American Chemical Society, Committee on Professional Training Staff Publisher : ISBN 13 :9780841214187 Total Pages :1390 pages Book Rating :4.2/5 (141 download)
Book Synopsis American Chemical Society Directory of Graduate Research, 1987 by : American Chemical Society, Committee on Professional Training Staff
Download or read book American Chemical Society Directory of Graduate Research, 1987 written by American Chemical Society, Committee on Professional Training Staff and published by . This book was released on 1987 with total page 1390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transient and Isotopic Tracing Kinetic Study on Supported Rhodium Catalysts in the CO Hydrogenation Reaction by : Angelos Michael Efstathiou
Download or read book Transient and Isotopic Tracing Kinetic Study on Supported Rhodium Catalysts in the CO Hydrogenation Reaction written by Angelos Michael Efstathiou and published by . This book was released on 1989 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Infrared Study of Supported Rhodium Catalysts by : Chi-Hun Dai
Download or read book An Infrared Study of Supported Rhodium Catalysts written by Chi-Hun Dai and published by . This book was released on 1987 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Infrared Study of the Oxidation of Carbon Monoxide Over Supported Rhodium Catalysts by : C. H. Dai
Download or read book An Infrared Study of the Oxidation of Carbon Monoxide Over Supported Rhodium Catalysts written by C. H. Dai and published by . This book was released on 1985 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reaction of carbon monoxide and oxygen over supported rhodium films has been studied using infrared spectroscopy. The focus of work was the reactivity of the various CO/Rh/X (X=Al2O3, SiO2, TiO2) surface states for supported catalysts having high and low Rh loading. Under the reaction conditions the 'linear CO' species was the most stable toward oxidation, but this could have been a result of an oxidized Rh surface. A new CO/Rh surface species has been proposed which exhibits an infrared band at 2000/cm for a 0.5% Rh/TiO2 film. This species is believed to be a bridged carbonyl between Rh+1 and the TiO2 support. Originator-supplied keywords include: Infrared spectroscopy, and Carbon dioxide.
Book Synopsis Isotopes In Heterogeneous Catalysis by : Justin S J Hargreaves
Download or read book Isotopes In Heterogeneous Catalysis written by Justin S J Hargreaves and published by World Scientific. This book was released on 2006-04-11 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this book is to review the current, state-of-the-art application of isotopic methods to the field of heterogeneous catalysis. Isotopic studies are arguably the ultimate technique in in situ methods for heterogeneous catalysis. In this review volume, chapters have been contributed by experts in the field and the coverage includes both the application of specific isotopes — Deuterium, Tritium, Carbon-14, Sulfur-35 and Oxygen-18 - as well as isotopic techniques — determination of surface mobility, steady state transient isotope kinetic analysis, and positron emission profiling.
