Rotating fullerene chains in carbon nanopeapods

被引：53

作者：

Warner, Jamie H. ^{[1
]}

Ito, Yasuhiro ^{[1
]}

Zaka, Mujtaba ^{[1
]}

Ge, Ling ^{[1
]}

Akachi, Takao ^{[2
,3
]}

Okimoto, Haruya ^{[2
,3
]}

Porfyrakis, Kyriakos ^{[1
]}

Watt, Andrew A. R. ^{[1
]}

Shinohara, Hisanori ^{[2
,3
]}

Briggs, G. Andrew D. ^{[1
]}

机构：

[1] Univ Oxford, Dept Mat, Quantum Informat Proc Interdisciplinary Res Ctr, Oxford OX1 3PH, England

[2] Nagoya Univ, Dept Chem, Chikusa Ku, Nagoya, Aichi 4648602, Japan

[3] Nagoya Univ, Inst Adv Res, Chikusa Ku, Nagoya, Aichi 4648602, Japan

来源：

NANO LETTERS | 2008年 / 8卷 / 08期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1021/nl801149z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The rotation of fullerene chains in SWNT peapods is studied using low-voltage high resolution transmission electron microscopy. Anisotropic fullerene chain structures (i.e., C(300)) are formed in situ in carbon nanopeapods via electron beam induced coalescence of individual fullerenes (i.e., C(60)). A low electron accelerating voltage of 80 kV is used to prevent damage to the SWNT. The large asymmetric C(300) fullerene structure exhibits translational motion inside the SWNT and unique corkscrew like rotation motion. Another asymmetric fullerene chain containing mixed fullerene species is prepared by fusing smaller C(60) fullerenes to a larger SC@C(82) fullerene, and this also exhibits corkscrew rotational motion. Chains Of Sc(3)C(2)@C(80) in SWNT peapods adopt a zigzag packing structure, and the entire zigzag chain rotates inside the SWNT to induce structural modifications to the SWNT diameter and cross-sectional shape of the SWNT. The expansion and contraction of the diameter of the SWNT is measured as 17%, demonstrating nanoactuation behavior in carbon nanopeapods.

引用

页码：2328 / 2335

页数：8

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