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Abstract:
采用XRD,BET,H2-TPR,TEM和XPS等方法对微乳法制备的Au/Fe203催化剂进行了表征,研究了不同制备方法对催化剂结构及性能的影响.结果表明,在辛烷基酚基聚氧乙烯醚(10)(Triton X-100)体系中,Au/Fe2O3催化剂在低温区的活性物种为单质金和氧化态金,在高温区的活性物种中可能含有Au-FeOx,固溶体.金粒径小于10nm,且高度分散于载体表面.氧化态金的含量及金的粒径和分散度是影响Au/Fe2O3催化水煤气变换反应活性的主要因素.Au/Fe2O3催化剂中Au-FeO,固溶体的缺陷数目越多,则其高温催化活性越高.
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催化学报
ISSN: 0253-9837
CN: 21-1601/O6
Year: 2004
Issue: 4
Volume: 25
Page: 261-266
0 . 7 2 1
JCR@2004
1 5 . 7 0 0
JCR@2023
JCR Journal Grade:2
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ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count: -1
30 Days PV: 3
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