Enhancing effect of H2 on the selective reduction of NO with CO over Ba-doped Ir/WO3/SiO2 catalyst

Masaaki Haneda, Kouji Chiba, Atsushi Takahashi, Motoi Sasaki, Tadahiro Fujitani, Hideaki Hamada

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In order to improve the catalytic performance of supported-Ir catalysts for the selective reduction of NO with CO, the effect of H2 was investigated. While adding H2 showed no or negative effect on NO conversion on Ir/SiO2, Ba/Ir/SiO2 and Ir/WO 3/SiO2 catalysts, the activity of Ba-doped Ir/WO 3/SiO2 catalyst for NO reduction was significantly increased by H2 addition. The role of H2 was found to stabilize the catalytically active Ir-WO x sites during the reaction.

Original languageEnglish
Pages (from-to)159-164
Number of pages6
JournalCatalysis Letters
Volume118
Issue number3-4
DOIs
Publication statusPublished - 2007 Oct 1
Externally publishedYes

Keywords

  • Ba-doped Ir/WO /SiO
  • Carbon monoxide
  • Hydrogen
  • Selective reduction

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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