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采用共沉淀法制备铈锆铝复合氧化物CZ_xA(Ce,Zr,Al摩尔比为1∶x∶2,其中x=0,0.5,1,1.5,2)新鲜样品,分别在空气和10%H_2/Ar气氛下进行热处理,利用X射线粉末衍射、N_2吸脱附BET法、O_2脉冲吸附、H_2程序升温还原(H_2 temperature-programmed reduction, H_2-TPR)等手段研究复合氧化物的结构及性能。结果表明:CZ_xA系列样品随着Zr含量的增加,经1100℃还原热处理的CZ_(1.5)A-H_2-1100和CZ_2A-H_2-1100样品没有观察到CeAlO_3晶相;其储氧量分别为713,548μmol·g~(-1)...
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材料工程
ISSN: 1001-4381
CN: 11-1800/TB
Year: 2020
Issue: 12
Volume: 48
Page: 90-96
0 . 6 0 0
JCR@2023
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 1
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