Enhancing Effect of H2 on the Selective Reduction of NO with CO over Ba-doped Ir/WO3/SiO2 Catalyst |
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| Authors: | Masaaki Haneda Kouji Chiba Atsushi Takahashi Motoi Sasaki Tadahiro Fujitani Hideaki Hamada |
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| Affiliation: | (1) Research Center for New Fuels and Vehicle Technology, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, 1-1-1 Higashi, Tsukuba Ibaraki, 305-8565, Japan;(2) Research Institute for Innovation in Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba West, 16-1 Onogawa, Tsukuba Ibaraki, 305-8569, Japan |
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| 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/WO3/SiO2 catalysts, the activity of Ba-doped Ir/WO3/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. |
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| Keywords: | Selective reduction Carbon monoxide Hydrogen Ba-doped Ir/WO3/SiO2 |
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