Chemical Research in Chinese Universities ›› 2017, Vol. 33 ›› Issue (6): 965-970.doi: 10.1007/s40242-017-7047-4

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Facile Synthesis of Mesoporous Co3O4 Nanoflowers for Catalytic Combustion of Ventilation Air Methane

LIU Shankui1, LIU Pengcheng1, NIU Ruyue1, WANG Shuang1,2, LI Jinping1   

  1. 1. Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan 030024, P. R. China;
    2. College of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong 030600, P. R. China
  • Received:2017-02-09 Revised:2017-06-12 Online:2017-12-01 Published:2017-09-26
  • Contact: WANG Shuang,E-mail:wangshuang@tyut.edu.cn;LI Jinping,E-mail:jpli211@hotmail.com E-mail:wangshuang@tyut.edu.cn;jpli211@hotmail.com
  • Supported by:
    Supported by the National Natural Science Foundation of China(Nos.21671147, 51203109) and the Funding of the State Key Laboratory of Coal and Coalbed Methane Co-mining, China.

Abstract: Flower-like Co3O4 hierarchical microspheres composed of self-assembled porous nanoplates were prepared by employing Pluronic F127 block-copolymer as template. The samples were characterized by powder X-ray diffraction(PXRD), scanning/transmission electron microscopy(SEM/TEM), and nitrogen adsorption-desorption at 77 K. The results show that the catalytic activity of Co3O4 nanoflowers for the combustion of ventilation air methane is higher than that of commercial Co3O4. The superior catalytic performance of this material can be related to its dominantly exposed {112} crystal planes and higher content of surface Co3+.

Key words: Co3O4, Nanoflower, Catalytic combustion, Ventilation air methane