DICP OpenIR
Size-dependence of carbon nanotube confinement in catalysis
Xiao, Jianping; Pan, Xiulian; Zhang, Fan; Li, Haobo; Bao, Xinhe
Source PublicationCHEMICAL SCIENCE
2017
DOI10.1039/c6sc02298g
Volume8Issue:1Pages:278-283
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordRU NANOPARTICLES ; WATER ; ENCAPSULATION ; ADSORPTION ; DIFFUSION ; DESIGN ; COVER ; IRON
AbstractAn 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.
Language英语
WOS IDWOS:000391454500030
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/151870
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, State Key Lab Catalysis, Dalian Inst Chem Phys, Zhongshan Rd 457, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
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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