Influence of modifying additives on the electronic state of supported palladium

A. N. Pestryakov, V. V. Lunin, S. Fuentes, N. Bogdanchikova, A. Barrera

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The influence of modifying additives of Ce, Zr, La and Cs oxides on the electronic state of palladium supported on γ-Al2O3 has been studied by IR-spectroscopy of adsorbed CO, diffuse reflectance UV-visible spectroscopy, X-ray diffraction (XRD) and H2 chemisorption. The modified supports have been prepared using impregnation, coprecipitation and sol-gel methods. It is established that Ce and Zr oxide additives increase the effective charge of palladium ions whereas La and Cs oxides lower it. The effect of metal-support interaction is stronger in samples prepared by sol-gel than by coprecipitation

Original languageEnglish
Pages (from-to)102-108
Number of pages7
JournalChemical Physics Letters
Volume367
Issue number1-2
DOIs
Publication statusPublished - 2 Jan 2003

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

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