Metal-organic framework as a host for synthesis of nanoscale Co3O4 as an active catalyst for CO oxidation

被引:126
作者
Wang, Weixia [1 ]
Li, Yingwei [1 ]
Zhang, Rongjun [2 ]
He, Dehua [2 ]
Liu, Hongli [1 ]
Liao, Shijun [1 ]
机构
[1] S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R China
[2] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
关键词
Metal-organic framework; Cobalt oxide nanoparticles; Carbon monoxide oxidation; Catalyst stability; ZEOLITIC IMIDAZOLATE FRAMEWORKS; TEXTURAL PARAMETERS; GOLD NANOPARTICLES; MESOPOROUS CO3O4; INFILTRATION; TEMPERATURE; PALLADIUM; MOF-5;
D O I
10.1016/j.catcom.2011.02.001
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
Co3O4 nanoparticles were prepared from cobalt nitrate that was accommodated in the pores of a metal-organic framework (MOF) ZIF-8 (Zn(MeIM)(2), MeIM=2-methylimidazole) by using a simple liquid-phase method. The ZIF-8 host was removed by pyrolysis under air and subsequently washing with an NH4Cl-NH3 center dot H2O aqueous solution. Transmission electron microscopy (TEM) analysis shows that the obtained Co3O4 is composed of separate nanoparticles with a mean size of 18 nm. The Co3O4 nanoparticles exhibit excellent catalytic activity, cycling stability, and long-term stability in the low temperature CO oxidation. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:875 / 879
页数:5
相关论文
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