Active sites over CuO/CeO2 and inverse CeO2/CuO catalysts for preferential CO oxidation

被引：92
|
作者：
Zeng, Shanghong [1 ,2 ]
Wang, Yan [1 ]
Ding, Suping [1 ]
Sattler, Jesper J. H. B. [2 ]
Borodina, Elena [2 ]
Zhang, Lu [1 ]
Weckhuysen, Bert M. [2 ]
Su, Haiquan [1 ]
机构：
[1] Inner Mongolia Univ, Sch Chem & Chem Engn, Inner Mongolia Key Lab Chem & Phys Rare Earth Mat, Hohhot 010021, Peoples R China
[2] Univ Utrecht, Debye Inst Nanomat Sci, Inorgan Chem & Catalysis Grp, NL-3584 CA Utrecht, Netherlands
来源：
JOURNAL OF POWER SOURCES | 2014年 / 256卷
基金：
中国国家自然科学基金;
关键词：
Copper-ceria catalysts; Hydrogen; Active site; Preferential CO oxidation; AREA CUO-CEO2 CATALYSTS; OXIDE COMPOSITE CATALYSTS; CARBON-MONOXIDE OXIDATION; SURFACE-AREA; SELECTIVE OXIDATION; IN-SITU; CUO; CERIA; GAS; TEMPERATURE;
D O I：
10.1016/j.jpowsour.2014.01.098
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：
A series of CuO/CeO2 and inverse CeO2/CuO catalysts are prepared by the surfactant-templated method and characterized via XRD, HRTEM, H-2-TPR, SEM, XPS, in situ XRD, in situ UV-Vis and N-2 adsorption-desorption techniques. It is found that there are two kinds of surface sites in the CuO-CeO2 system, including CuO surface sites for CO chemisorption and CeO2 surface sites with oxygen vacancies for oxygen sorption. The active sites for CO oxidation are located on the contact interface of two-kind surface Sites and the lattice oxygen can make a significant contribution to the CO-PROX reaction. The resistance to H2O and CO2 is related to BET surface area, the crystallite sizes of CuO and the reduction behavior of catalysts. The Ce4Cu4 and Ce4Cu1 catalysts exhibit the best resistance against H2O and CO2. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：301 / 311
页数：11
相关论文
共 50 条
  • [21] Enhanced catalytic performance for CO preferential oxidation over CuO catalysts supported on highly defective CeO2 nanocrystals
    Wang, Cheng
    Cheng, Qingpeng
    Wang, Xinlei
    Ma, Kui
    Bai, Xueqin
    Tan, Sirui
    Tian, Ye
    Ding, Tong
    Zheng, Lirong
    Zhang, Jing
    Li, Xingang
    APPLIED SURFACE SCIENCE, 2017, 422 : 932 - 943
  • [22] Preferential oxidation of CO in excess H2 over CuO/CeO2 catalysts: Characterization and performance as a function of the exposed face present in the CeO2 support
    Gamarra, D.
    Lopez Camara, A.
    Monte, M.
    Rasmussen, S. B.
    Chinchilla, L. E.
    Hungria, A. B.
    Munuera, G.
    Gyorffy, N.
    Schay, Z.
    Cortes Corberan, V.
    Conesa, J. C.
    Martinez-Arias, A.
    APPLIED CATALYSIS B-ENVIRONMENTAL, 2013, 130 : 224 - 238
  • [23] CuO/CeO2 based monoliths for CO preferential oxidation in H2-rich streams
    Barbato, Paola Sabrina
    Di Benedetto, Almerinda
    Landi, Gianluca
    Lisi, Luciana
    CHEMICAL ENGINEERING JOURNAL, 2015, 279 : 983 - 993
  • [24] Low-temperature CO oxidation over different CuO/CeO2 catalysts
    Zheng, XC
    Zhang, XL
    Wang, SR
    Yu, LH
    Wang, XY
    Wu, SH
    CHINESE JOURNAL OF CATALYSIS, 2005, 26 (11) : 971 - 976
  • [25] Synthesis of Zero, One, and Three Dimensional CeO2 Particles and CO Oxidation over CuO/CeO2
    Shan Wenjuan
    Liu Chang
    Guo Hongjuan
    Yang Lihua
    Wang Xiaonan
    Feng Zhaochi
    CHINESE JOURNAL OF CATALYSIS, 2011, 32 (08) : 1336 - 1341
  • [26] CO preferential oxidation reaction aspects in a nanocrystalline CuO/CeO2 catalyst
    Reis, C. G. M.
    Almeida, K. A.
    Silva, T. F.
    Assaf, J. M.
    CATALYSIS TODAY, 2020, 344 : 124 - 128
  • [27] Doping Effect of CuO on CeO2 for CO Oxidation
    Ji Jun ZHANG
    Neng LI
    Ying Jun LIU
    Bing Xiong LIN(Institute of Physical Chemistry
    ChineseChemicalLetters, 1998, (09) : 873 - 876
  • [28] Doping effect of CuO on CeO2 for CO oxidation
    Zhang, JJ
    Li, N
    Liu, YJ
    Lin, BX
    CHINESE CHEMICAL LETTERS, 1998, 9 (09) : 873 - 876
  • [29] Influence of the structure and morphology of CuO supports on the amount and properties of copper-cerium interfacial sites in inverse CeO2/CuO catalysts
    Yin, Yueling
    Liu, Kewei
    Gao, Meiyi
    Zhang, Lu
    Su, Haiquan
    Zeng, Shanghong
    JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2015, 404 : 193 - 203
  • [30] Preparation, characterization of CuO/CeO2 and Cu/CeO2 catalysts and their applications in low-temperature CO oxidation
    Zheng, XC
    Han, DZ
    Wang, SP
    Zhang, SM
    Wang, SR
    Haung, WP
    Wu, SH
    JOURNAL OF RARE EARTHS, 2005, 23 (01) : 47 - 51
12345