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
相关论文
共 50 条
  • [1] Preferential Oxidation of CO Impurities in the Presence of H2 on NiO-Loaded and Unloaded TiO2 Photocatalysts at 293 K
    Takashi Kamegawa
    Tae-Ho Kim
    Jun Morishima
    Masaya Matsuoka
    Masakazu Anpo
    Catalysis Letters, 2009, 129 : 7 - 11
  • [2] CO Preferential oxidation promoted by UV irradiation in the presence of H2 over Au/TiO2
    Dai, Wenxin
    Chen, Xun
    Wang, Xuxu
    Liu, Ping
    Li, Danzhen
    Li, Guanshe
    Fu, Xianzhi
    PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2008, 10 (22) : 3256 - 3262
  • [3] Preferential Oxidation of CO in H2 Stream on Au/TiO2 Catalysts: Effect of Preparation Method
    Sangeetha, Palanivelu
    Chang, Li-Hsin
    Chen, Yu-Wen
    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2009, 48 (12) : 5666 - 5670
  • [4] Photocatalytic preferential oxidation of CO with O2 in the presence of H2 (photo-PROX) on Mo-MCM-41 at 293 K
    Matsuoka, Masaya
    Kamegawa, Takashi
    Anpo, Masakazu
    RECENT PROGRESS IN MESOSTRUCTURED MATERIALS, PROCEEDINGS OF THE 5TH INTERNATIONAL MESOSTRUCTURED MATERIALS SYMPOSIUM - IMMS2006, 2007, 165 : 725 - 728
  • [5] Promoted effect of PANI on the preferential oxidation of CO in the presence of H2 over Au/TiO2 under visible light irradiation
    Yang, Kai
    Li, Yunxing
    Huang, Kun
    Chen, Xun
    Fu, Xianzhi
    Dai, Wenxin
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2014, 39 (32) : 18312 - 18325
  • [6] On the origin of the selectivity in the preferential CO oxidation on Au/TiO2 - Nature of the active oxygen species for H2 oxidation
    Widmann, D.
    Hocking, E.
    Behm, R. J.
    JOURNAL OF CATALYSIS, 2014, 317 : 272 - 276
  • [7] Gold catalysts on TiO2 support for preferential oxidation of CO in H2 stream: Effect of base agent
    Sangeetha, Palanivelu
    Chang, Li-Hsin
    Chen, Yu-Wen
    MATERIALS CHEMISTRY AND PHYSICS, 2009, 118 (01) : 181 - 186
  • [8] Competition of CO and H2 for Active Oxygen Species during the Preferential CO Oxidation (PROX) on Au/TiO2 Catalysts
    Hartadi, Yeusy
    Behm, R. Juergen
    Widmann, Daniel
    CATALYSTS, 2016, 6 (02):
  • [9] Photocatalytic Oxidation of CO on TiO2: Chemisorption of O2, CO, and H2
    Dai, Wenxin
    Chen, Xun
    Zheng, Xiangping
    Ding, Zhengxin
    Wang, Xuxu
    Liu, Ping
    Fu, Xianzhi
    CHEMPHYSCHEM, 2009, 10 (02) : 411 - 419
  • [10] Au/FeOx-TiO2 Catalysts for the Preferential Oxidation of CO in a H2 Stream
    Yang, Yi-Fen
    Sangeetha, Palanivelu
    Chen, Yu-Wen
    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2009, 48 (23) : 10402 - 10407
12345