Fundamental studies of hydrogen chemisorption on supported monometallic and bimetallic catalysts using microcalorimetry

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Highly dispersed transition metal catalysts are used in numerous commercial processes such as hydrocarbon conversions. For example, the use of Pt supported on acidic alumina or silica-alumina for reforming of naphtha in the production of gasoline is well known. Another use of supported catalysts is in automobile emission control where supported Pt-Rh bimetallic catalysts are used. Supported Ru can be used in Fischer-Tropsch synthesis for the production of higher hydrocarbons from synthesis gas. While many of these catalyst systems have been in commercial operation for several decades there is still a lack of consensus regarding the exact role of the ... continued below

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18 p.

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Narayan, R.L. June 24, 1997.

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  • Ames Laboratory
    Publisher Info: Ames Lab., IA (United States)
    Place of Publication: Iowa

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Highly dispersed transition metal catalysts are used in numerous commercial processes such as hydrocarbon conversions. For example, the use of Pt supported on acidic alumina or silica-alumina for reforming of naphtha in the production of gasoline is well known. Another use of supported catalysts is in automobile emission control where supported Pt-Rh bimetallic catalysts are used. Supported Ru can be used in Fischer-Tropsch synthesis for the production of higher hydrocarbons from synthesis gas. While many of these catalyst systems have been in commercial operation for several decades there is still a lack of consensus regarding the exact role of the catalyst on a molecular level. In particular, little is known about the mechanisms operating on the catalyst surface at the high pressure and high temperature conditions typically used in commercial operations. This report contains the general introduction and conclusions and an appendix containing the operating instructions for a microcalorimeter. Three chapters have been processed separately. They are: the effect of K on the kinetics and thermodynamics of hydrogen adsorption on Ru/SiO{sub 2}; hydrogen adsorption states on silica supported Ru-Ag and Ru-Cu bimetallic catalysts investigated via microcalorimetry; a comparative study of hydrogen chemisorption on silica supported Ru, Rh, and Pt.

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18 p.

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OSTI as DE98000609

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  • Other Information: TH: Thesis (Ph.D.)

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  • Other: DE98000609
  • Report No.: IS-T--1812
  • Grant Number: W-7405-ENG-82
  • Office of Scientific & Technical Information Report Number: 537287
  • Archival Resource Key: ark:/67531/metadc694580

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  • June 24, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • Nov. 20, 2015, 8:02 p.m.

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Narayan, R.L. Fundamental studies of hydrogen chemisorption on supported monometallic and bimetallic catalysts using microcalorimetry, thesis or dissertation, June 24, 1997; Iowa. (digital.library.unt.edu/ark:/67531/metadc694580/: accessed August 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.