TIC-09-mesoporous niobium-based mixed metal oxides containing Mo, V, and Te for propane oxidative dehydrogenation

Li Yuan, Vadim V. Guliants, Miguel A. Bañares, Sheima J. Khatib

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

The novel thermally stable mesoporous multicomponent MNbOx (M - V, Mo, and Te) mixed metal oxides were successfully synthesized by evaporationinduced self-assembly (EISA) employing niobium oxide as a major structural component. The formation of nanocrystalline M1 phase as part of the ordered mesoporous structure was investigated. These mixed metal oxide phases displayed good thermal stability (up to 400 °C), large pore sizes (up to 14 nm), high surface areas (up to 230 m2/g) and flexible inorganic wall compositions. Thermally stable mesoporous Nb2O5 supported metal M/Nb (M - MoV-TeNb) oxides were obtained by incipient-wetness impregnation (IWI) technique. The comparison between mesoporous bulk mixed and supported mixed metal oxides (MNbOx and M/Nb) were addressed. The catalytic roles of the constituent metal oxides were investigated in oxidative dehydrogenation (ODH) of propane. The methods described in this paper represent promising synthetic approaches for the design of novel catalytic mixed metal oxides.

Original languageEnglish
Pages (from-to)268-280
Number of pages13
JournalTopics in Catalysis
Volume49
Issue number3-4
DOIs
StatePublished - Aug 2008

Keywords

  • Catalytic activity
  • Mesoporous
  • Mixed metal oxides
  • Mo
  • Nb
  • Propane ammoxidation
  • Propane oxidation
  • Propane oxidative dehydrogenation
  • Self-assembly
  • Te
  • Thermal stability
  • V

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