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Ferric Oxide-Supported Pt Subnano Clusters for Preferential Oxidation of CO in H-2-Rich Gas at Room Temperature
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
2014-07-01
DOI10.1021/cs500501u
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
关键词[WOS]SELECTIVE CATALYTIC-OXIDATION ; CARBON-MONOXIDE ; EXCESS HYDROGEN ; MESOPOROUS SILICA ; NANOPARTICLES ; MECHANISM ; REMOVAL ; H-2 ; FE ; AU/ALPHA-FE2O3
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.
语种英语
WOS记录号WOS:000338693100003
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/145501
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, Peoples R China
2.Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA
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GB/T 7714
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.
APA Qiao, Botao.,Wang, Aiqin.,Li, Lin.,Lin, Qingquan.,Wei, Haisheng.,...&Zhang, Tao.(2014).Ferric Oxide-Supported Pt Subnano Clusters for Preferential Oxidation of CO in H-2-Rich Gas at Room Temperature.ACS CATALYSIS,4(7),2113-2117.
MLA Qiao, Botao,et al."Ferric Oxide-Supported Pt Subnano Clusters for Preferential Oxidation of CO in H-2-Rich Gas at Room Temperature".ACS CATALYSIS 4.7(2014):2113-2117.
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