Influence of modifying additives on electronic state of supported gold

A. N. Pestryakov, V. V. Lunin, A. N. Kharlanov, D. I. Kochubey, N. Bogdanchikova, A. Yu Stakheev

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Abstract

Using the methods of IR spectroscopy of adsorbed CO, electron spectroscopy of diffuse reflectance, XRD, XPS, EXAFS and electron microscopy the influence of modifying additions of Ce, Zr, La and Cs oxides on the surface electronic states of supported gold have been studied. The additions of Ce and Zr oxides stabilize the ionic states of supported gold and increase the effective charge of the ions. In contrast, La and Cs oxides lower the effective charge of gold cation and favor their fast reduction.

Original languageEnglish
Pages (from-to)129-136
Number of pages8
JournalJournal of Molecular Structure
Volume642
Issue number1-3
DOIs
Publication statusPublished - 4 Dec 2002

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Keywords

  • Electronic states
  • Gold catalysts
  • IR spectroscopy
  • UV-Visible spectroscopy

ASJC Scopus subject areas

  • Structural Biology
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

Cite this

Pestryakov, A. N., Lunin, V. V., Kharlanov, A. N., Kochubey, D. I., Bogdanchikova, N., & Stakheev, A. Y. (2002). Influence of modifying additives on electronic state of supported gold. Journal of Molecular Structure, 642(1-3), 129-136. https://doi.org/10.1016/S0022-2860(02)00402-7