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Acta Physico-Chimica Sinica  1995, Vol. 11 Issue (12): 1097-1100    DOI: 10.3866/PKU.WHXB19951208
Note     
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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Abstract  

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.



Key wordsZrO2-Al2O3 catalysts      CO oxidation      Surface oxygen     
Received: 25 January 1995      Published: 15 December 1995
Corresponding Authors: Zhou Ren-Xian   
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. Acta Physico-Chimica Sinica, 1995, 11(12): 1097-1100.

URL:

http://www.whxb.pku.edu.cn/10.3866/PKU.WHXB19951208     OR     http://www.whxb.pku.edu.cn/Y1995/V11/I12/1097

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