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采用共沉淀法、沉积-沉淀法和改性沉积-沉淀法制备了Au/Fe2O3催化剂,运用N2吸附、X射线衍射、X射线光电子能谱和透射电镜等技术对其进行了表征,考察了制备方法对Au/Fe2O3催化剂水煤气变换反应催化活性的影响.结果表明,改性沉积-沉淀法制备的催化剂具有最好的催化活性,150 ℃时CO转化率达82.3%.该催化剂比表面积较大,金粒子尺寸(3~5 nm)较小且分布均匀.载体氧化铁以无定形态和结晶态共存,金与载体间存在较强的相互作用,这对催化剂活性的提高起着重要作用.
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Source :
催化学报
ISSN: 0253-9837
CN: 21-1601/O6
Year: 2008
Issue: 4
Volume: 29
Page: 346-350
0 . 7 0 7
JCR@2008
1 5 . 7 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
JCR Journal Grade:3
Cited Count:
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: -1
Chinese Cited Count:
30 Days PV: 3
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