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Relationship between surface microstructure and properties of supported catalyst Rh/Ys

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【Author】 LIU Zhongyang,PAN Pinglai,ZHU ChangchengWANG Xiaojun and YUAN Guoqing(Institute of Chemistry,Chinese Academy of Sciences,Beijing 100080,China)

【机构】 Institute of Chemistry； Chinese Academy of Sciences； Beijing 100080； China； China；

【摘要】 <正> The inner structure of Rh/Ys,a novel high efficiency supported catalyst,and the spreading of Rh on the Ys surface were analyzed through electron transmission microscopy and scanning tunnel microscopy.The relationship between the distribution of Rh over the support and the preparation temperature of th catalyst was determined.The formation of Rh-C bond was confirmed by XPS and far-IR spectra.The loss of Rh from the surface of the support and the catalytic activity under different preparation conditions have been compared.The internal factors for the high activity and high stability of the novel Rh/Ys catalyst have been discussed.更多还原

【Abstract】 The inner structure of Rh/Ys,a novel high efficiency supported catalyst,and the spreading of Rh on the Ys surface were analyzed through electron transmission microscopy and scanning tunnel microscopy.The relationship between the distribution of Rh over the support and the preparation temperature of th catalyst was determined.The formation of Rh-C bond was confirmed by XPS and far-IR spectra.The loss of Rh from the surface of the support and the catalytic activity under different preparation conditions have been compared.The internal factors for the high activity and high stability of the novel Rh/Ys catalyst have been discussed.更多还原

【关键词】 Rh/Ys catalyst； carbonylation； acetic acid； microstructure； methanol；
【Key words】 Rh/Ys catalyst； carbonylation； acetic acid； microstructure； methanol；

【基金】 Project supported by the National Natural Science Foundation of China

【文献出处】 Science in China(Series B) ,中国科学B辑(英文版) , 编辑部邮箱 ,1997年02期

【分类号】O643.3
【下载频次】21

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