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Effect of rhodium particle size in Rh/SiO2 catalyst prepared by microemulsion method on reaction performance of CO hydrogenation
Zhou Shutian; Pan Xiulian; Bao Xinhe
关键词Carbon Monoxide Hydrogenation Rhodium Silica Supported Catalyst Particle Size Microemulsion Method
刊名CHINESE JOURNAL OF CATALYSIS
2006-06-01
27期:6页:474-478
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]IN-OIL MICROEMULSION ; SUPPORTED RHODIUM ; METHANOL SYNTHESIS ; CARBONYL CLUSTERS ; METAL PARTICLES ; FT-IR ; RH ; WATER ; PRESSURE ; BEHAVIOR
英文摘要Controllable synthesis of the silica-supported rhodium catalyst with uniform particle size has been achieved through microemulsion technique by manipulating the WO value (molar ratio of water to surfactant in the precursor). The catalyst shows a core-shell morphology, in which rhodium is encapsulated by a silica shell. The characterization of the catalyst morphology by TEM and the catalytic performance of the catalyst for CO hydrogenation indicated significant influence of the rhodium particle size. There was a minimum value of the CO conversion over the catalyst with the average rhodium particle size of 3 nm in the range of 1.8 similar to 5.0 nm. With increasing the rhodium particle size from 3 to 5.0 nm, the reactivity increased. Compared with the Rh/SiO2 catalyst prepared by the conventional impregnation method, the present catalyst had more uniform distribution of rhodium particle size and showed superior catalytic activity for CO hydrogenation, when the catalyst samples had the same loading and average particle size.
语种英语
WOS记录号WOS:000239190800006
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140315
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
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Zhou Shutian,Pan Xiulian,Bao Xinhe. Effect of rhodium particle size in Rh/SiO2 catalyst prepared by microemulsion method on reaction performance of CO hydrogenation[J]. CHINESE JOURNAL OF CATALYSIS,2006,27(6):474-478.
APA Zhou Shutian,Pan Xiulian,&Bao Xinhe.(2006).Effect of rhodium particle size in Rh/SiO2 catalyst prepared by microemulsion method on reaction performance of CO hydrogenation.CHINESE JOURNAL OF CATALYSIS,27(6),474-478.
MLA Zhou Shutian,et al."Effect of rhodium particle size in Rh/SiO2 catalyst prepared by microemulsion method on reaction performance of CO hydrogenation".CHINESE JOURNAL OF CATALYSIS 27.6(2006):474-478.
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