A facile approach for the preparation of biomorphic CuO-ZrO2 catalyst for catalytic combustion of methane

Luo, Jingjie, Xu, Huiyuan, Liu, Yuefeng, Chu, Wei, Jiang, Chengfa and Zhao, Xiusong (2012) A facile approach for the preparation of biomorphic CuO-ZrO2 catalyst for catalytic combustion of methane. Applied Catalysis A-General, 423-424 : 121-129.


Author Luo, Jingjie
Xu, Huiyuan
Liu, Yuefeng
Chu, Wei
Jiang, Chengfa
Zhao, Xiusong
Title A facile approach for the preparation of biomorphic CuO-ZrO2 catalyst for catalytic combustion of methane
Journal name Applied Catalysis A-General  (ERA 2012 Listed)    (ERA 2010 Rank B)   Check publisher's open access policy
Publication date 2012-05
Sub-type Article
DOI 10.1016/j.apcata.2012.02.025
Volume number 423-424
ISSN 0926-860X; 1873-3875
Start page 121
End page 129
Total pages 9
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Collection year 2013
Language eng
Formatted abstract A series of novel biomorphic CuO-ZrO 2 catalysts were prepared using a cotton bio-template and compared with conventional CuO-ZrO 2 catalysts. The physical and chemical properties of the as-obtained catalysts were characterized by techniques including X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), H 2-temperature programmed reduction (H 2-TPR), and O 2-temperature programmed desorption (O 2-TPD). The catalytic combustion of methane was chosen as the probe reaction. The results suggested that the bio-template method prepared porous biomorphic CuO-ZrO 2 catalysts consist of hollow microtubes. Comparing with conventional CuO-ZrO 2 catalysts, biomorphic CuO-ZrO 2 catalysts displayed better reducibility and oxygen mobility, stronger metal-oxides synergistic effect, appropriate particle size distribution, and lower activation energy. The crystalline state of zirconia transformed from a single crystallite phase of t-ZrO 2 into a complex of m-ZrO 2 and t-ZrO 2 after introducing the bio-template. With proper CuO content (20 mol%), the biomorphic CuO-ZrO 2 catalyst displayed preponderant properties. The compensation of surface lattice oxygen from bulk lattice oxygen was more available at high reaction temperatures.
Keyword Bio-template method
Biomorphic CuO-ZrO2 catalyst
Methane catalytic combustion
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article
Collections: School of Chemical Engineering Publications
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