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学科主题: 物理化学
题名: Hydrogen production from ethanol over Ir/CeO2 catalysts: Reaction pathway and stability
作者: Cai WJ(蔡伟杰) ;  Zhang BC(张保才) ;  Liu QY(刘琪英) ;  Xu YD(徐奕德) ;  Shen WJ(申文杰)
会议名称: europacat VIII conference
会议日期: 2007-8-26
出版日期: 2007-08-26
会议地点: 芬兰
其他题名: Ir/CeO2催化剂上乙醇制氢:反应路径和稳定性
通讯作者: 申文杰
部门归属: 五室
主办者: Scientific committee
摘要: Stability tests of hydrogen production from ethanol by steam reforming,partial oxidation and oxidative steam reforming were conducted over Ir/CeO2 catalysts at 923K with approximately stoichiometric feed streams.Rather stable catalytic performance for 60h time on stream was observed. Structure analysis of the used catalysts revealed that the Ir particles(2-3 nm)were still highly dispersed on surface of ceria, but the particle size of ceria increased from 6 nm to 14-27 nm,depending on the reaction atmosphere. However, this change in particle size did not influence on the activity and stability.We suppose that the excellent redox features of ceria made the easy activation of water and/or oxygen for promoting the carbon removal. The equilibrium between coke formation and gasification was established during the reactions.
语种: 中文
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/112584
Appears in Collections:中国科学院大连化学物理研究所_会议论文

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Recommended Citation:
Cai WJ,Zhang BC,Liu QY,et al. Hydrogen production from ethanol over Ir/CeO2 catalysts: Reaction pathway and stability[C]. 见:europacat VIII conference. 芬兰. 2007-8-26.
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