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采用两种方法制备了三种Pt/CeO2-ZrO2-La2O3柴油车尾气氧化催化剂,并用X射线衍射、N2物理吸附、程序升温还原、程序升温脱附、X射线荧光光谱和红外光谱等方法对其进行了表征.结果发现,制备方法对催化剂的结构、织构、抗硫性能及催化性能的影响非常大.对其进行硫中毒,导致起燃温度明显升高.将ZrO2和La2O3沉积在CeO2表面所制得的Pt/CeO2-ZrO2-La2O3催化剂表现出更高的抗硫及催化氧化性能,这主要归功于Pt在富Zr载体表面具有更高的分散性.
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催化学报
ISSN: 0253-9837
CN: 21-1601/O6
Year: 2011
Issue: 09
Volume: 32
Page: 1469-1476
1 . 1 7 1
JCR@2011
1 5 . 7 0 0
JCR@2023
JCR Journal Grade:2
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SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 9
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