FTIR study of CO adsorption on molybdena-alumina catalysts for surface characterization

Heider Nasser, Ákos Rédey, Tatiana Yuzhakova, Zsolt Németh Tóth, Tamás Ollár

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

CO adsorption at low temperature has been used to probe Lewis acid sites created upon dehydroxylation of γ-Al2O3 and reduction of Mo/Al2O3 catalysts, using Fourier Transform Infrared spectroscopy (FTIR). Carbon-monoxide adsorption on γ-Al 2O3 and Mo/Al2O3 catalysts dehydroxylated and reduced at different temperatures was studied at 78 K by IR spectroscopy. However, our results indicate that there is an approximately linear correlation between the increase either of dehydroxylation or the extent of reduction of the catalysts and the increasing absorbance of CO due to CO adsorption on Lewis acid sites created upon dehydroxylation of γ-Al 2O3 and reduction of Mo/Al2O3.

Original languageEnglish
Pages (from-to)329-335
Number of pages7
JournalReaction Kinetics and Catalysis Letters
Volume92
Issue number2
DOIs
Publication statusPublished - Dec 1 2007

Keywords

  • CO adsorption
  • FTIR
  • Molybdena-alumina

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

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