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More Active Ir Subnanometer Clusters than Single-Atoms for Catalytic Oxidation of CO at Low Temperature
Lin, Jian1; Chen, Yang1,2; Zhou, Yanliang1,2; Li, Lin1; Qiao, Botao1; Wang, Aiqin1; Liu, Jingyue3; Wang, Xiaodong1; Zhang, Tao1
关键词Co Oxidation Co2 Ir Subnanometer Clusters Single Atoms
刊名AICHE JOURNAL
2017-09-01
DOI10.1002/aic.15756
63期:9页:4003-4012
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Technology
类目[WOS]Engineering, Chemical
研究领域[WOS]Engineering
关键词[WOS]WATER-GAS SHIFT ; PREFERENTIAL OXIDATION ; CARBON-MONOXIDE ; ROOM-TEMPERATURE ; OXYGEN ACTIVATION ; OXIDE CATALYSTS ; GOLD CATALYSTS ; PARTICLE-SIZE ; EXCESS H-2 ; ADSORPTION
英文摘要This work reported the adsorption and reaction performance of FeOx supported subnanometer cluster and single-atom Ir catalysts for the oxidation of CO at low temperature. By varying the pretreatment temperature and Ir loading, the single-atom and subnanometer cluster Ir catalysts were obtained. The Ir subnanometer clusters exhibited higher activity for the oxidation of CO with or without the presence of H-2 than the single-atom counterpart. By using adsorption microcalorimetry and in situ infrared spectroscopy measurements, it was found that the Ir subnanometer clusters not only promoted the adsorption and reaction of CO and O-2 but also facilitated the formation of OH species from reaction between H-2 and O-2, thus opening a new reaction pathway between CO and OH species to produce CO2 compared with that between CO and O species on the single-atom counterpart. (C) 2017 American Institute of Chemical Engineers
语种英语
WOS记录号WOS:000407192500030
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/149804
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, State Key Lab Catalysis, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA
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GB/T 7714
Lin, Jian,Chen, Yang,Zhou, Yanliang,et al. More Active Ir Subnanometer Clusters than Single-Atoms for Catalytic Oxidation of CO at Low Temperature[J]. AICHE JOURNAL,2017,63(9):4003-4012.
APA Lin, Jian.,Chen, Yang.,Zhou, Yanliang.,Li, Lin.,Qiao, Botao.,...&Zhang, Tao.(2017).More Active Ir Subnanometer Clusters than Single-Atoms for Catalytic Oxidation of CO at Low Temperature.AICHE JOURNAL,63(9),4003-4012.
MLA Lin, Jian,et al."More Active Ir Subnanometer Clusters than Single-Atoms for Catalytic Oxidation of CO at Low Temperature".AICHE JOURNAL 63.9(2017):4003-4012.
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