Preferential CO oxidation in hydrogen-rich stream over Pt catalysts modified with alkali metals. Part I. Catalytic performance

Hisanori Tanaka, Masatoshi Kuriyama, Yoichi Ishida, Shin ichi Ito, Keiichi Tomishige, Kimio Kunimori

研究成果: Article査読

46 被引用数 (Scopus)

抄録

In preferential CO oxidation in H2-rich stream (PROX), the additive effect of potassium on Pt catalysts was more remarkable over Al2O3 than over SiO2, ZrO2, Nb2O5 and TiO2. The additive effect of potassium to Pt/Al2O3 was more effective than other alkali metals. Especially, the presence of H2 drastically promoted CO oxidation over Pt/Al2O3 modified with potassium. On the other hand, the suppressing effect of steam on the PROX was more significant over K-Pt/Al2O3 than over Pt/Al2O3, although the PROX activity of K-Pt/Al2O3 was much higher than that of Pt/Al2O3 even under the presence of steam. The different effect of steam addition to the PROX over K-Pt/Al2O3 suggests that the active site can be Pt surface modified with potassium ions.

本文言語English
ページ(範囲)117-124
ページ数8
ジャーナルApplied Catalysis A: General
343
1-2
DOI
出版ステータスPublished - 2008 7 1
外部発表はい

ASJC Scopus subject areas

  • 触媒
  • プロセス化学およびプロセス工学

フィンガープリント

「Preferential CO oxidation in hydrogen-rich stream over Pt catalysts modified with alkali metals. Part I. Catalytic performance」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル