Preferential Oxidation of CO Impurities in the Presence of H2 on NiO-Loaded and Unloaded TiO2 Photocatalysts at 293 K

被引：12
|
作者：
Kamegawa, Takashi [1 ]
Kim, Tae-Ho [1 ]
Morishima, Jun [1 ]
Matsuoka, Masaya [1 ]
Anpo, Masakazu [1 ]
机构：
[1] Osaka Prefecture Univ, Grad Sch Engn, Dept Appl Chem, Naka Ku, Osaka 5998531, Japan
来源：
CATALYSIS LETTERS | 2009年 / 129卷 / 1-2期
关键词：
NiO/TiO2; TiO2 (P-25); Photocatalyst; Preferential oxidation of CO (PROX); WATER; O-2; CATALYSTS; HYDROGEN;
D O I：
10.1007/s10562-009-9856-7
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The photocatalytic preferential oxidation of CO with O-2 in the presence of H-2 (photo-PROX) was found to proceed efficiently on the NiO-loaded TiO2 (NiO/TiO2) catalyst under UV light irradiation at 293 K. NiO/TiO2 exhibited higher CO conversion as well as CO2 selectivity for a photo-PROX reaction than the original unloaded TiO2 (P-25). Various spectroscopic investigations have revealed that the small NiO clusters formed on TiO2 play an important role in the enhancement of CO oxidation activity in this reaction.
引用
收藏
页码：7 / 11
页数：5
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