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Size-dependence of carbon nanotube confinement in catalysis
Xiao, Jianping; Pan, Xiulian; Zhang, Fan; Li, Haobo; Bao, Xinhe
刊名CHEMICAL SCIENCE
2017
DOI10.1039/c6sc02298g
8期:1页:278-283
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
关键词[WOS]RU NANOPARTICLES ; WATER ; ENCAPSULATION ; ADSORPTION ; DIFFUSION ; DESIGN ; COVER ; IRON
英文摘要An increasing number of studies have demonstrated that confinement within carbon nanotubes (CNTs) provides an effective approach for the modulation of catalysis. It was generally predicted that confinement became stronger with a decreasing diameter of CNTs. However, our present study here overturns the previous expectation: the influence on catalysis is not monotonic. Instead, it exhibits a volcano relationship with CNT diameter. Taking Pt catalyzing O-2 conversion and Re catalyzing N-2 conversion as probes using density functional theory, we show that only within tubes with an i. d. of similar to 1 nm can the activity of metal clusters be enhanced to its maximum. Furthermore, confinement only enhances the catalytic activity of metals with strong intrinsic binding with reactants, whereas it is suppressed for those with weak binding. These findings shed further light on the fundamental effects of confinement on catalysis, and could guide more rational design of confined catalysts.
语种英语
WOS记录号WOS:000391454500030
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被引频次:7[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/321008/151870
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, State Key Lab Catalysis, Dalian Inst Chem Phys, Zhongshan Rd 457, Dalian 116023, Peoples R China
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Xiao, Jianping,Pan, Xiulian,Zhang, Fan,et al. Size-dependence of carbon nanotube confinement in catalysis[J]. CHEMICAL SCIENCE,2017,8(1):278-283.
APA Xiao, Jianping,Pan, Xiulian,Zhang, Fan,Li, Haobo,&Bao, Xinhe.(2017).Size-dependence of carbon nanotube confinement in catalysis.CHEMICAL SCIENCE,8(1),278-283.
MLA Xiao, Jianping,et al."Size-dependence of carbon nanotube confinement in catalysis".CHEMICAL SCIENCE 8.1(2017):278-283.
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