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Citation: 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 Physico-Chimica Sinica, ;1995, 11(12): 1097-1100. doi: 10.3866/PKU.WHXB19951208 shu

Study on Phase Structure, Pore Structure and catalytic Property of Out-layer ZrO₂ on Alumina Base

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

Received Date: 25 January 1995
Available Online: 15 December 1995

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.
- ZrO₂-Al₂O₃ catalysts,
- CO oxidation,
- Surface oxygen
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沈阳化工大学材料科学与工程学院沈阳 110142

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Study on Phase Structure, Pore Structure and catalytic Property of Out-layer ZrO2 on Alumina Base

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通讯作者: 陈斌, bchen63@163.com

Study on Phase Structure, Pore Structure and catalytic Property of Out-layer ZrO₂ on Alumina Base