Subject Area物理化学
Hydrogen production via oxidative steam reforming over Ir/CeO2 catalysts: influence of particle sizes
Cai WJ(蔡伟杰); Wang FG(王发根); Zhan ES(展恩胜); Shen WJ(申文杰)
Conference Name9th Novel Gas Conversion Symposium
Conference Date2010-5-30
Conference Place法国
Alternative TitleIr/CeO2 催化剂上乙醇水汽重整制氢:粒子大小的影响
Funding Organization里昂环境催化研究所
AbstractThe catalytic activity of ethanol reforming strongly depends on the interaction between Ir particles and ceria support, which is determined largely by the size of ceria particle. The catalyst with ceria size of 6-8 nm exhibited the strong metal-support interaction and resulted in the quite promising activity and stability. When ceria size was larger than 20 nm, large amounts of coke was formed on the catalysts due to the insufficient redox of CeO2. It seems that ceria particle in the range of 6-10 nm provides a sufficient Ir-CeO2 interfacial perimeter, which favors facile activation of water and/or oxygen and easy transfer of oxygen species to Ir particles, promoting carbon removal.
Document Type会议论文
Corresponding AuthorShen WJ(申文杰)
Recommended Citation
GB/T 7714
Cai WJ,Wang FG,Zhan ES,et al. Hydrogen production via oxidative steam reforming over Ir/CeO2 catalysts: influence of particle sizes[C],2010:214/1.
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