Citation: Fen Fen Qu, Wei Chu, Li Min Shi, Mu Hua Chen, Jin Yan Hu. Catalytic combustion of methane over nano ZrO₂-supported copper-based catalysts[J]. Chinese Chemical Letters, ;2007, 18(8): 993-996. doi: 10.1016/j.cclet.2007.06.001 shu

Catalytic combustion of methane over nano ZrO₂-supported copper-based catalysts

Fen Fen Qu ^a, ,
Wei Chu ^a,b ,
Li Min Shi ^b ,
Mu Hua Chen ^b ,
Jin Yan Hu ^a

a Department of Environmental Science and Engineering, Sichuan University, Chengdu 610065, China;
b Department of Chemical Engineering, Sichuan University, Chengdu 610065, China

Received Date: 31 January 2007

Fund Project: This work was financially supported by the NNSFC (No. 205903603) and by the Creative Project (No. 2005CF07) of Sichuan University.

The nano ZrO₂-supported copper-based catalysts for methane combustion were investigated by means of N₂ adsorption, TEM, XRD, H2-TPR techniques and the test of methane oxidation. Two kinds of ZrO₂ were used as support, one (ZrO₂-1) was obtained from the commercial ZrO₂ and the other (ZrO₂-2) was issued from the thermal decomposition of zirconium nitrate. It was found that the CuO/ZrO₂-2 catalyst was more active than CuO/ZrO₂-1. N₂ adsorption, H₂-TPR and XRD measurements showed that larger surface area, better reduction property, presence of tetragonal ZrO₂ and higher dispersion of active component for CuO/ZrO₂-2 than that of CuO/ZrO₂-1. These factors could be the dominating reasons for its higher activity for methane combustion.
- Nano ZrO₂,
- Copper-based catalysts,
- Catalytic combustion,
- Methane
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