Inverse CeO2/CuO catalysts prepared by different precipitants for preferential CO oxidation in hydrogen-rich streams

被引：12
作者：
Zeng, Shanghong [1 ]
Wang, Yan [1 ]
Qin, Bin [2 ]
Gu, Xiaojun [1 ]
Su, Haiquan [1 ]
Li, Long [1 ]
Liu, Kewei [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] Petrochina Hohhot Petrochem Co, Hohhot 010070, Peoples R China
来源：
CATALYSIS SCIENCE & TECHNOLOGY | 2013年 / 3卷 / 12期
基金：
中国国家自然科学基金;
关键词：
CUO-CEO2; CATALYSTS; CUO/CEO2; TEMPERATURE; PERFORMANCE; COMBUSTION; CERIA;
D O I：
10.1039/c3cy00478c
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 inverse CeO2/CuO catalysts were prepared by different precipitants, and characterized via XRD, ICP, SEM, H-2-TP Raman, TEM and N-2 adsorption-desorption techniques. The study showed that the inverse CeO2/CuO configurations were formed and copper is mainly present in the form of bulk CuO in the as-synthesized catalysts. It was found that the length of the contact interface between CeO2 and CuO was closely associated with the crystal size of CeO2 and CuO. The CeO2/CuO catalysts using urea, NaOH and TMAH (tetramethylammonium hydroxide) as precipitants presented a better catalytic performance for CO oxidation below 185 degrees C in the hydrogen-rich streams due to some amount of copper-ceria interfacial sites in the catalysts.
引用
收藏
页码：3163 / 3172
页数：10
相关论文
共 42 条
[1]   CuO-CeO2 catalysts synthesized in one-step: Characterization and PROX performance [J].
Araujo, V. D. ;
Bellido, J. D. A. ;
Bernardi, M. I. B. ;
Assaf, J. M. ;
Assaf, E. M. .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2012, 37 (07) :5498-5507
[2]   Structural and gas-sensing properties of CuO-CuxFe3-xO4 nanostructured thin films [J].
Chapelle, Audrey ;
Yaacob, Mohd H. ;
Pasquet, Isabelle ;
Presmanes, Lionel ;
Barnabe, Antoine ;
Tailhades, Philippe ;
Du Plessis, Johan ;
Kalantar-zadeh, Kourosh .
SENSORS AND ACTUATORS B-CHEMICAL, 2011, 153 (01) :117-124
[3]   Confocal Raman spectroscopic mapping studies on a single CuO nanowire [J].
Chou, M. H. ;
Liu, S. B. ;
Huang, C. Y. ;
Wu, S. Y. ;
Cheng, C. -L. .
APPLIED SURFACE SCIENCE, 2008, 254 (23) :7539-7543
[4]   ATOMIC-FORCE MICROSCOPY AND RAMAN-SPECTROSCOPY STUDIES ON THE OXIDATION OF CU THIN-FILMS [J].
GONG, YS ;
LEE, CP ;
YANG, CK .
JOURNAL OF APPLIED PHYSICS, 1995, 77 (10) :5422-5425
[5]   CuO-CeO2 catalysts synthesized by various methods: Comparative study of redox properties [J].
Gurbani, A. ;
Ayastuy, J. L. ;
Gonzalez-Marcos, M. P. ;
Gutierrez-Ortiz, M. A. .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2010, 35 (20) :11582-11590
[6]   Comparative study of CuO-CeO2 catalysts prepared by wet impregnation and deposition-precipitation [J].
Gurbani, A. ;
Ayastuy, J. L. ;
Gonzalez-Marcos, M. P. ;
Herrero, J. E. ;
Guil, J. M. ;
Gutierrez-Ortiz, M. A. .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2009, 34 (01) :547-553
[7]   Structural, catalytic/redox and electrical characterization of systems combining Cu-Fe with CeO2 or Ce1-xMxO2-δ (M = Gd or Tb) for direct methane oxidation [J].
Hornes, A. ;
Munuera, G. ;
Fuerte, A. ;
Escudero, M. J. ;
Daza, L. ;
Martinez-Arias, A. .
JOURNAL OF POWER SOURCES, 2011, 196 (09) :4218-4225
[8]   Inverse CeO2/CuO Catalyst As an Alternative to Classical Direct Configurations for Preferential Oxidation of CO in Hydrogen-Rich Stream [J].
Hornes, A. ;
Hungria, A. B. ;
Bera, P. ;
Lopez Camara, A. ;
Fernandez-Garcia, M. ;
Martinez-Arias, A. ;
Barrio, L. ;
Estrella, M. ;
Zhou, G. ;
Fonseca, J. J. ;
Hanson, J. C. ;
Rodriguez, J. A. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (01) :34-+
[9]   Preparation of a Cu-Ce-O catalyst by urea combustion for removing CO from hydrogen [J].
Hu Tao ;
Yang Jian ;
Zhao Jun ;
Wang Danjun ;
Song Huanling ;
Chou Lingjun .
CHINESE JOURNAL OF CATALYSIS, 2007, 28 (10) :844-846
[10]   Study of Catalytic Activity at the CuO-CeO2 Interface for CO Oxidation [J].
Jia, Ai-Ping ;
Jiang, Shi-Yu ;
Lu, Ji-Qing ;
Luo, Meng-Fei .
JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (49) :21605-21610
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