Synergistic effect of Pt or Pd and perovskite oxide for water gas shift reaction

Yasushi Sekine*, Haruka Takamatsu, Sho Aramaki, Kazuki Ichishima, Mitsuko Takada, Masahiko Matsukata, Eiichi Kikuchi


研究成果: Article査読

23 被引用数 (Scopus)


The water gas shift (WGS) reaction over Pt and Pd catalysts supported on various perovskite oxides has been investigated at 573 K without catalyst pretreatment. The Pt and Pd catalysts on LaCoO3 support showed high catalytic activity. Interaction between Pt or Pd and the support is considered to promote the WGS reaction: Pt/LaCoO3 had high initial activity but deactivated immediately; Pd/LaCoO3 was less active than Pt/LaCoO3, but had superior stability. Catalysts were characterized using XRD, STEM, XPS, and H2-temperature programmed reduction (TPR). Results of this study showed that reduction of the support decreased the CO conversion on Pt/LaCoO3. On the other hand, Pd/LaCoO3 showed stable activity for the WGS reaction. Therefore, Pd was added to Pt/LaCoO3 for stabilizing the catalyst activity, and 0.5 wt.% Pd/1 wt.% Pt/LaCoO3 catalyst showed higher activity and stability.

ジャーナルApplied Catalysis A: General
出版ステータスPublished - 2009 1月 15

ASJC Scopus subject areas

  • 触媒
  • プロセス化学およびプロセス工学


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