Nanostructuring of binary molybdenum oxide catalysts for propene oxidation

J.B. Wagner, S.B. Abd Hamid, D. Othman, O. Timpe, S. Knobl, D. Niemeyer, D.S. Su, R. Schlögl

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Binary molybdenum oxides are active catalysts for propene oxidation to acrolein if they are structurally different from orthorhombic MoO3 (o-Mo). The periodical structure of the as-synthesized precatalyst must be different from o-Mo to create the activity. Additional features typical for efficient catalysts are a bulk nanostructuring and a complex surface termination that are detectable in TEM examinations only. After transition into defective o-Mo the samples exhibit much reduced activities. The implications of these findings on the functional analysis of complex selective oxidation catalysts are discussed.
Original languageEnglish
JournalJournal of Catalysis
Volume225
Issue number1
Pages (from-to)78-85
Number of pages8
ISSN0021-9517
DOIs
Publication statusPublished - 2004
Externally publishedYes

Keywords

  • Selective oxidation
  • Propene
  • Molybdenum oxides
  • TEM
  • Defect structures
  • Phase transformation

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