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ISSN 1000-6818CN 11-1892/O6CODEN WHXUEU
Acta Phys Chim Sin >> 1995,Vol.11>> Issue(12)>> 1097-1100     doi: 10.3866/PKU.WHXB19951208         中文摘要
Study on Phase Structure, Pore Structure and catalytic Property of Out-layer ZrO2 on Alumina Base
 ZHOU Ren-Xian, WEI Jian-Gen, ZHENG Xiao-Ming, WU Hong-Li, LV Guang-Lie
Institute of Catalysis, Hangzhou University; Centrul Laboratory of Hangzhou Universtiy Hangzhou 310028
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XRD was used to Characterize the system of alumina supported ZrO2 in a temperature range of 500-1000℃. It was found that ZrO2 in ZrO2-Al2O3 sample was non-crystalline below 600℃, cubic-ZrO2 over a temperature range of 600-900℃,and t-ZrO2at temperature higher than 900℃. The pore structure, CO oxidation activity and suface oxygen properties of out-layer ZrO2 were also studied. The results indicated that small out-layer ZrO2 made a contribution to pore structure of alumina base in a pore size range of 10-50Å, and not only was CO oxidation activity of ZrO2-Al2O3 samples related to its phase structure, but also to properties of its surface oxygen desorption and lattice oxygen defect.



Keywords: ZrO2-Al2O3 catalysts   CO oxidation   Surface oxygen  
Received: 1995-01-25 Accepted: 1995-04-24 Publication Date (Web): 1995-12-15
Corresponding Authors: Zhou Ren-Xian Email:


Cite this article: ZHOU Ren-Xian, WEI Jian-Gen, ZHENG Xiao-Ming, WU Hong-Li, LV Guang-Lie. Study on Phase Structure, Pore Structure and catalytic Property of Out-layer ZrO2 on Alumina Base[J]. Acta Phys. -Chim. Sin., 1995,11 (12): 1097-1100.    doi: 10.3866/PKU.WHXB19951208
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