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Study of geometrical and electronic effects induced by hydrogen chemisorption on supported Pt particles. Analysis of Pt–H EXAFS and Pt–H anti-bonding state shape resonances

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Abstract

Geometrical and electronic effects induced by hydrogen chemisorption on supported Pt particles are studied by analysing the Pt–H anti-bonding shape resonance. The fundamental principles of a new analysis method of the L2 and L3 X-ray absorption edges are summarised. The method is used for studying the Pt–H bonding properties of weakly and strongly bonded hydrogen on surfaces of supported metal catalysts. Also the interaction of hydrogen with a Pt/CeO2 catalyst as a function of the reduction temperature is investigated. The new analysis method makes it possible to follow the changes in the electronic structure of a Pt/Al2O3 catalyst as a function of the metal particle size.

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Authors and Affiliations

  1. Department of Inorganic Chemistry and Catalysis, Debye Institute, Utrecht University, PO Box 80083, 3508 TB, Utrecht, The Netherlands

    D.C. Koningsberger, M.K. Oudenhuijzen & J.H. Bitter

  2. Department of Chemistry and Materials Science Institute, George Washington University, Washington, DC, 20052, USA

    D.E. Ramaker

Authors
  1. D.C. Koningsberger
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  2. M.K. Oudenhuijzen
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  3. J.H. Bitter
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  4. D.E. Ramaker
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Koningsberger, D., Oudenhuijzen, M., Bitter, J. et al. Study of geometrical and electronic effects induced by hydrogen chemisorption on supported Pt particles. Analysis of Pt–H EXAFS and Pt–H anti-bonding state shape resonances. Topics in Catalysis 10, 167–177 (2000). https://doi.org/10.1023/A:1019153226151

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