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Citation: Zhong Yijun, Chen Ping, Zhou Bi, Luo Mengfei. Catalytic Properties of CuO/CeO₂ and CuO/Al₂O₃ Catalysts[J]. Chinese Journal of Applied Chemistry, ;1997, 14(1): 49-52. shu

Catalytic Properties of CuO/CeO₂ and CuO/Al₂O₃ Catalysts

1.
1. Department of Chemistry, Zhejiang Normal University, Jinhua 321004;
2.
2. Institute of Catalysis, Hangzhou University, Hangzhou

Received Date: 7 March 1996
Available Online: 9 July 1996
Fund Project:

The oxidation activity of CuO supported on CeO₂ and Al₂O₃ was investigated using the oxidation of carbon monoxide as a model reaction. The reducibility and Cu oxide species of the catalysts were studied by XRD and TPR techniques. The susceptibility of CO to oxidation strongly depends on the support:the catalytic activity of CuO/CeO₂ is much higher than that of CuO/Al₂O₃. It is found that the existing forms of copper species, crystal particle size of CuO, the reducibility and activity of catalysts are affected by thermal treatment. The formation of CuAl₂O₄ spinal species at high temperature is the main reason for activity decrease of CuO/Al₂O₃ catalyst, and the increase of crystal particle size of CuO is the main reason for activity decrease of CuO/CeO₂.
- CuO/CeO₂,
- CuO/Al₂O₃,
- catalyst,
- reducibility,
- oxidation activity
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Catalytic Properties of CuO/CeO₂ and CuO/Al₂O₃ Catalysts