Activity of Au/ZnO catalysts prepared by photodeposition for the preferential CO oxidation in a H2-rich gas

被引：25
|
作者：
Dulnee, S. [1 ]
Luengnaruemitchai, A. [1 ]
Wanchanthuek, R. [2 ,3 ]
机构：
[1] Chulalongkorn Univ, Petr & Petrochem Coll, Bangkok 10330, Thailand
[2] Mahasarakham Univ, Fac Sci, Dept Chem, Kantarawichai Dist 44150, Mahasarakham, Thailand
[3] Mahasarakham Univ, Fac Sci, Ctr Excellence Innovat, Kantarawichai Dist 44150, Mahasarakham, Thailand
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2014年 / 39卷 / 12期
关键词：
PROX; CO oxidation; Au catalyst; Au/ZnO; Photo-deposition; SELECTIVE OXIDATION; AU NANOPARTICLES; GOLD CATALYSTS; CARBON-MONOXIDE; ZINC-OXIDE; DEPOSITION; HYDROGEN; ZNO; TEMPERATURE; PLATINUM;
D O I：
10.1016/j.ijhydene.2014.02.038
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：
In this work, Au supported over ZnO prepared by photodeposition was applied to prepare nano-size Au catalysts by utilizing UV light for the preferential oxidation (PROX) of CO. The results demonstrated that Au can be dispersed homogeneously over ZnO in the size range of 1-2 nm with a narrow size distribution. It was clearly seen that the preparation parameters (i.e. irradiation time, precipitant concentration, calcination, and storage condition) had a significant effect on the catalytic activity. Among the variables studied, low concentrations of precipitant and long irradiation time were by far the most influential on the catalytic activity. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：6443 / 6453
页数：11
相关论文
共 50 条
  • [41] Morphology effects of nanocrystalline CeO2 on the preferential CO oxidation in H2-rich gas over Au/CeO2 catalyst
    Yi, Guangquan
    Xu, Zhongning
    Guo, Guocong
    Tanaka, Ken-ichi
    Yuan, Youzhu
    CHEMICAL PHYSICS LETTERS, 2009, 479 (1-3) : 128 - 132
  • [42] On the role of redox properties of CuO/CeO2 catalysts in the preferential oxidation of CO in H2-rich gases
    Caputo, Tiziana
    Lisi, Luciana
    Pirone, Raffaele
    Russo, Gennaro
    APPLIED CATALYSIS A-GENERAL, 2008, 348 (01) : 42 - 53
  • [43] Preferential oxidation of CO in H2 stream on Au/ZnO-TiO2 catalysts
    Chen, Yu-Wen
    Lee, Der-Shing
    Chen, Hsin-Ju
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2012, 37 (20) : 15140 - 15155
  • [44] MnOx modified Co3O4-CeO2 catalysts for the preferential oxidation of CO in H2-rich gases
    Guo, Qiang
    Liu, Yuan
    APPLIED CATALYSIS B-ENVIRONMENTAL, 2008, 82 (1-2) : 19 - 26
  • [45] Stability of Co-Ce-Mn mixed-oxide catalysts for CO preferential oxidation in H2-rich gases
    Guo, Qiang
    Chen, Shunquan
    Liu, Yuan
    Wang, Yaquan
    CHEMICAL ENGINEERING JOURNAL, 2010, 165 (03) : 846 - 850
  • [46] Improved Low-Temperature Activity of CuO-CeO2-ZrO2 Catalysts for Preferential Oxidation of CO in H2-Rich Streams
    Shi, Limin
    Zhang, Guo
    CATALYSIS LETTERS, 2016, 146 (08) : 1449 - 1456
  • [47] Oxygen vacancy-regulated atomic dispersed Au on CeFeOx for preferential oxidation of CO in H2-rich stream
    Xiang, Ganghua
    Chen, Hao
    Yi, Chengfeng
    Liu, Zhigang
    Dai, Sheng
    CHEMICAL ENGINEERING JOURNAL, 2024, 479
  • [48] Oxygen vacancy-regulated atomic dispersed Au on CeFeOx for preferential oxidation of CO in H2-rich stream
    Xiang, Ganghua
    Chen, Hao
    Yi, Chengfeng
    Liu, Zhigang
    Dai, Sheng
    Chemical Engineering Journal, 2024, 479
  • [49] The promoted effect of UV irradiation on preferential oxidation of CO in an H2-rich stream over Au/TiO2
    Dai, Wenxin
    Zheng, Xiangping
    Yang, Haiyan
    Chen, Xun
    Wang, Xuxu
    Liu, Ping
    Fu, Xianzhi
    JOURNAL OF POWER SOURCES, 2009, 188 (02) : 507 - 514
  • [50] On-line deactivation of Au/TiO2 for CO oxidation in H2-rich gas streams
    Steyn, Johann
    Pattrick, Gary
    Scurrell, Michael S.
    Hildebrandt, Diane
    Raphulu, Mpfunzeni C.
    van der Lingen, Elma
    CATALYSIS TODAY, 2007, 122 (3-4) : 254 - 259
12345