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Abstract:
通过并流共沉淀方法,制备了一系列添加助剂ZrO2和Nb2O5的Auα-Fe2O3催化剂,并用紫外-可见漫反射光谱,X射线光电子能谱,透射电镜和X射线荧光元素分析对其进行了表征.结果表明ZrO2和Nb2Os之间存在着较强的协同作用;两种助剂的同时添加促进了Au,ZrO2和Nb2O5在Au/α-Fe2O3催化剂表面的富集,有效地阻止了纳米微粒的团聚.经甲醇重整气氛下的催化性能评价,在200℃时,AuFZ的活性达到平衡转化率99.9%;经50 h的稳定性测试,其稳定性远远高于未加助剂的Au/α-Fe2O3样品.这表明ZrO2和Nb2O5双助剂的添加有效地改善了Au/α-Fe2O3催化剂的性能.
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光谱学与光谱分析
ISSN: 1000-0593
CN: 11-2200/O4
Year: 2007
Issue: 4
Volume: 27
Page: 781-784
0 . 8 4 3
JCR@2007
0 . 7 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
JCR Journal Grade:3
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 2
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