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题名: Self-Assembly of Atomically Thin and Unusual Face-Centered Cubic Re Nanowires within Carbon Nanotubes
作者: Zhang, Fan1;  Ren, Pengju1;  Pan, Xiulian1;  Liu, Jingyue1, 2;  Li, Mingrun1;  Bao, Xinhe1
刊名: CHEMISTRY OF MATERIALS
发表日期: 2015-03-10
DOI: 10.1021/cm504012h
卷: 27, 期:5, 页:1569-1573
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Materials Science
英文摘要: Rhenium (Re), a high-performance engineering material with a hexagonal close-packed (hcp) structure, remains stable even under pressures of up to 250 GPa and at temperatures up to its melting point (3453 K). We observed here that Re atoms self-assembled, within the confined space of carbon nanotubes (CNTs) with a diameter of <1.5 nm, into ultrathin nanowires stacking with an unusual face-centered cubic (fcc) structure along the CNTs. In contrast, only Re nanoparticles of hcp structure formed on an open surface of graphite and carbon black. Aberration-corrected electron microscopy unambiguously showed the atomic arrangements of the Re nanowires and their confinement within the CNTs, similar to 80% exhibiting a four-atom and 15% a nine-atom configuration. Density functional theory calculations confirmed that the formation of unusual fcc-stacking Re nanowires is largely facilitated by the strong interaction between Re atoms and CNTs and the spatial restriction within the CNTs. The use of CNTs as nanoscale reactors to create novel structures not only is fundamentally interesting but also may find unique applications in catalysis, sensing, and nanoelectronics.
关键词[WOS]: ELECTROCATALYTIC ACTIVITY ;  METAL NANOWIRES ;  TRANSITION ;  ULTRATHIN ;  RHENIUM ;  PRESSURE
语种: 英语
WOS记录号: WOS:000350919000016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146096
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.Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA

Recommended Citation:
Zhang, Fan,Ren, Pengju,Pan, Xiulian,et al. Self-Assembly of Atomically Thin and Unusual Face-Centered Cubic Re Nanowires within Carbon Nanotubes[J]. CHEMISTRY OF MATERIALS,2015,27(5):1569-1573.
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