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题名: Remarkable Performance of Ir-1/FeOx Single-Atom Catalyst in Water Gas Shift Reaction
作者: Lin, Jian1;  Wang, Aiqin1;  Qiao, Botao1;  Liu, Xiaoyan1;  Yang, Xiaofeng1;  Wang, Xiaodong1;  Liang, Jinxia2;  Li, Jun2;  Liu, Jingyue1, 3;  Zhang, Tao1
刊名: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
发表日期: 2013-10-16
DOI: 10.1021/ja408574m
卷: 135, 期:41, 页:15314-15317
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: High specific activity and cost effectiveness of single-atom catalysts hold practical value for water gas shift (WGS) reaction toward hydrogen energy. We reported the preparation and characterization of Ir single atoms supported on FeOx (Ir-1/FeOx) catalysts, the activity of which is 1 order of magnitude higher than its cluster or nanoparticle counterparts and is even higher than those of the most active Au- or Pt-based catalysts. Extensive studies reveal that the single atoms accounted for similar to 70% of the total activity of catalysts containing single atoms, subnano clusters, and nanoparticles, thus serving as the most important active sites. The Ir single atoms seem to greatly enhance the reducibility of the FeOx support and generation of oxygen vacancies, leading to the excellent performance of the Ir-1/FeOx single-atom catalyst. The results have broad implications on designing supported metal catalysts with better performance and lower cost.
关键词[WOS]: HETEROGENEOUS CATALYSIS ;  CO OXIDATION ;  ELECTRON-MICROSCOPY ;  CARBON-MONOXIDE ;  GOLD ;  SITES ;  ALCOHOLS ;  SURFACE ;  TIO2 ;  SIZE
语种: 英语
WOS记录号: WOS:000326125200012
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137519
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.Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
3.Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA

Recommended Citation:
Lin, Jian,Wang, Aiqin,Qiao, Botao,et al. Remarkable Performance of Ir-1/FeOx Single-Atom Catalyst in Water Gas Shift Reaction[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2013,135(41):15314-15317.
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