Co/TiO2 catalyst for high pressure dry reforming of methane and its modification by other metals

Katsutoshi Nagaoka, Kazuhiro Takanabe, Ken Ichi Aika*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations

Abstract

Catalytic behaviour of 0.5wt%Co/TiO2, prepared from TiO 2 containing only anatase phase, in CH4/CO2 reforming at 2 MPa was strongly affected by reduction temperature. Co/TiO 2 reduced at relatively lower temperatures (<1123 K) lost all of its activity at the beginning of the reaction, whereas the catalyst reduced at higher temperatures (1123 K) showed relatively stable activity with only a slight amount of deposited coke. However, the latter catalyst lost all of activities at a higher space velocity after the reaction for 20 h, mainly due to oxidation of metallic Co. The addition of trace amounts of noble metals (Pt or Ru) improved the catalytic stability drastically by retarding the oxidation. It was confirmed that the strong resistant nature of Co/TiO2 to coke deposition was retained after the addition of the noble metals.

Original languageEnglish (US)
Title of host publicationStudies in Surface Science and Catalysis
PublisherElsevier Inc.
Pages187-192
Number of pages6
ISBN (Print)9780444515995
DOIs
StatePublished - Jan 1 2004

Publication series

NameStudies in Surface Science and Catalysis
Volume147
ISSN (Print)0167-2991

ASJC Scopus subject areas

  • Catalysis
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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