MOLYBDENUM OXIDE STRUCTURE ON SILICA-SUPPORTED CATALYSTS STUDIED BY RAMAN SPECTROSCOPY AND EXTENDED X-RAY ABSORPTION FINE STRUCTURE SPECTROSCOPY.

Noriyoshi Kakuta, Kazuyuki Tohji, Yasuo Udagawa

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

Raman spectroscopy and EXAFS (extended X-ray absorption fine structure) spectroscopy have been used to investigated the formation of molybdenum oxide on silica-supported catalysts. The existence and the structure of interaction species at low loadings are elucidated by both spectroscopies. The Raman data of the catalyst at higher loadings confirm the previously reported observations, that is, the presence of MoO//3 phase after the calcination at 773 K, while EXAFS spectra clearly demonstrate that the major molybdenum species is different from MoO//3 crystallite. The reason for the apparent contradiction is discussed.

Original languageEnglish
Pages (from-to)2583-2587
Number of pages5
JournalJournal of physical chemistry
Volume92
Issue number9
Publication statusPublished - 1988 May 5
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physical and Theoretical Chemistry

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