Water gas shift reaction over Cu-based mixed oxides for CO removal from the reformed fuels

Yohei Tanaka, Toshimasa Utaka, Ryuji Kikuchi, Kazunari Sasaki, Koichi Eguchi

Research output: Contribution to journalArticlepeer-review

99 Citations (Scopus)

Abstract

Cu-based mixed oxides were investigated for WGSR in order to identify catalysts with high activity and durability even under severe conditions including a large amount of H2O in the reformed fuels. CuAl2O4 and CuMn2O4 showed much higher specific rates of CO conversion than Cu/ZnO/Al2O3. Although WGSR activity emerged from reduction of the mixed oxides, high-temperature reduction gave rise to the sintering of Cu. CuAl2O4 showed moderate CO oxidation activity at lower temperatures and WGSR activity over 300 °C. The CuMn2O4 catalyst exhibited high WGSR activity over 225 °C, comparable to that of Cu/ZnO/Al2O3, and high durability for 20h at 200-225 °C.

Original languageEnglish
Pages (from-to)287-295
Number of pages9
JournalApplied Catalysis A: General
Volume242
Issue number2
DOIs
Publication statusPublished - Mar 20 2003

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Process Chemistry and Technology

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