CeO2 morphology-dependent NbOx -CeO2 interaction, structure and catalytic performance of NbOx/CeO2 catalysts in oxidative dehydrogenation of propane
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- 作者：Yiming Liu ; Liangfeng Luo ; Yuxian Gao ; Weixin Huang ; huangwx@ustc.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Metal-support interaction ; CeO2 nanocrystals ; Nb2O5 ; CeNbO4 ; Oxygen vacancy
- 刊名：Applied Catalysis B: Environmental
- 出版年：2016
- 出版时间：15 November 2016
- 年：2016
- 卷：197
- 期：Complete
- 页码：214-221
- 全文大小：3576 K
文摘
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CeO2 morphology strongly affects NbOx–CeO2 interactions and structures of NbOx/CeO2 catalysts.
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Monomeric Nb and Nb4+ species are most abundant respectively on r-CeO2-500 and c-CeO2.
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NbOx suppresses surface reduction of c-CeO2 and r-CeO2-500 but promotes that of r-CeO2-700.
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0.6Nb/r-CeO2-500 is most active in catalyzing low-temperature ODHP reaction.