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Study on Active Carbon Supported Rh-Mo-K Catalysts for Alcohol Synthesis
Li Zhongrui,Fu Yilu,Jiang Ming,Hu Tianduo,Liu Tao,Xie Yaning
Author NameAffiliation
Li Zhongrui Department Chemistry Physics, University Science and Techology of China, Hefei 230026 
Fu Yilu Department Chemistry Physics, University Science and Techology of China, Hefei 230026 
Jiang Ming Department Chemistry Physics, University Science and Techology of China, Hefei 230026 
Hu Tianduo Institute ofHigh Energy Physics, Chinese Academy of Science, Beijing 100039 
Liu Tao Institute ofHigh Energy Physics, Chinese Academy of Science, Beijing 100039 
Xie Yaning Institute ofHigh Energy Physics, Chinese Academy of Science, Beijing 100039 
Abstract:
The structures of oxidic and sulfided Rh-Mo-K/AC catalysts were studied by means of XRD and EXAFS techniques. Activities for mixed alcohol synthesis via CO hydrogenation were used to measure the catalytic properties of these catalysts. In the oxidic Rh-Mo-K/AC catalyst samples, there is strong interaction between Rh and Mo species, which may shift K2Mo2O7to MoO2. Molybdenum species are mainly converted into MoS2crystallites after sulfidation treatment, and the local ordered structure is shrunken with the increase in Rh loading. The incorporation of rhodium shows high performance of alcohol synthesis from carbon monoxide hydrogenation.
Key words:  Mo-based catalyst, Rh promoter, Mixed alcohol synthesis, Structure
FundProject:本工作得到北京同步辐射装置重点课题支持
活性炭担载的Rh-M0-K合成醇催化剂
李忠瑞,伏义路,姜明,胡天斗,刘涛,谢亚宁
摘要:
采用XRD、EXAFS等技术研究微量贵金属Rh对活性炭担载的Rh-Mo-K合成醇催化剂结构的影响,并关联其催化性能.氧化态Rh-Mo-K/AC样品中Rh与Mo有着较强的相互作用,使得K2Mo2O7向MoO2转化.硫化还原后,Mo主要以MoS2微晶形式存在,其有序结构尺度随Rh含量的增加而减小.经Rh助剂修饰后,催化剂的合成醇催化性能有明显的提高.
关键词:  Mo基催化剂  Rh助剂  合成低碳醇  结构
DOI:10.1088/1674-0068/14/3/355-360
分类号: