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题名: Ferric Oxide-Supported Pt Subnano Clusters for Preferential Oxidation of CO in H-2-Rich Gas at Room Temperature
作者: Qiao, Botao1, 2;  Wang, Aiqin1;  Li, Lin1;  Lin, Qingquan1;  Wei, Haisheng1;  Liu, Jingyue2;  Zhang, Tao1
关键词: cluster ;  preferential oxidation ;  CO ;  Pt ;  iron oxide
刊名: ACS CATALYSIS
发表日期: 2014-07-01
DOI: 10.1021/cs500501u
卷: 4, 期:7, 页:2113-2117
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Pt single atoms and small clusters were dispersed on iron oxides by a facile coprecipitation method. These catalysts, with or without calcination at elevated temperatures, show excellent activity and selectivity for preferential oxidation of CO in the H-2-rich gas. They can completely remove CO from H-2-rich gas at a wide temperature range of 20-70 degrees C, which renders them suitable for low-temperature applications. The reaction followed a mixture of competitive mechanism and a noncompetitive/redox mechanism. The weakened CO adsorption on small Pt clusters and atoms makes the competitive adsorption of O-2 feasible, which ensures a high activity of Pt/Fe catalysts, even calcined at elevated temperature.
关键词[WOS]: SELECTIVE CATALYTIC-OXIDATION ;  CARBON-MONOXIDE ;  EXCESS HYDROGEN ;  MESOPOROUS SILICA ;  NANOPARTICLES ;  MECHANISM ;  REMOVAL ;  H-2 ;  FE ;  AU/ALPHA-FE2O3
语种: 英语
WOS记录号: WOS:000338693100003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145501
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA

Recommended Citation:
Qiao, Botao,Wang, Aiqin,Li, Lin,et al. Ferric Oxide-Supported Pt Subnano Clusters for Preferential Oxidation of CO in H-2-Rich Gas at Room Temperature[J]. ACS CATALYSIS,2014,4(7):2113-2117.
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