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Citation: Zhou Ren-Xian, Jiang Xiao-Yuan, Lv Guang-Lie, Zheng Xiao-Ming. Desorption of Surface Oxygen on Cu/ZrO₂-γ-Al₂O₃ and its Influence on the Catalytic Performance[J]. Acta Physico-Chimica Sinica, ;1997, 13(02): 128-133. doi: 10.3866/PKU.WHXB19970206 shu

Desorption of Surface Oxygen on Cu/ZrO₂-γ-Al₂O₃ and its Influence on the Catalytic Performance

1.
Institute of Catalysis,Hangzhou University,Centrul Laboratory of Hangzhou University,Hangzhou 310028

Received Date: 1 July 1996
Available Online: 15 February 1997

The effects of ZrO2 modification of γ-Al2O3 on the desorption-renewal properties of surface oxygen species and the reduction behavior of copper species on CuO/γ-Al2O3 were studied by TPD-MS and TPR methods, and its activity for CO oxidation was examined. The results indicated that the presence of ZrO2 could promote the desorption of surface oxygen species and the reduction of copper species on CuO/γ-Al2O3 and thus increasing the activity for CO oxidation. In addition, it was found that the desorptibility of oxygen species and the reducibility of copper species on γ-Al2O3 or ZrO2-Al2O3 were affected by variation in the conditions of thermal treatment.
- ZrO₂,
- CuO/γ-Al₂O₃,
- CO oxidation,
- Surface oxygen species
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Desorption of Surface Oxygen on Cu/ZrO2-γ-Al2O3 and its Influence on the Catalytic Performance

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通讯作者: 陈斌, bchen63@163.com

Desorption of Surface Oxygen on Cu/ZrO₂-γ-Al₂O₃ and its Influence on the Catalytic Performance