Large elastic deformation of C60 nanowhiskers

被引：19

作者：

Funamori, Yuto ^{[1
]}

Suzuki, Ryo ^{[1
]}

Wakahara, Takatsugu ^{[2
]}

Ohmura, Takahito ^{[3
]}

Nakagawa, Eri ^{[3
]}

Tachibana, Masaru ^{[1
]}

机构：

[1] Yokohama City Univ, Dept Mat Syst Sci, Kanazawa Ku, 22-2 Seto, Yokohama, Kanagawa 2360027, Japan

[2] Natl Inst Mat Sci, Res Ctr Funct Mat, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan

[3] Natl Inst Mat Sci, Res Ctr Struct Mat, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan

来源：

CARBON | 2020年 / 169卷

关键词：

C-60; nanowhiskers; Solvated structure; Bending; Elastic deformation; Young modulus; Hardness; ORDERED CARBON CLUSTERS; PHOTO-ASSISTED GROWTH; STRUCTURAL-CHANGES; FULLERENE; NANOSHEETS; CRYSTALS; NANORODS;

D O I：

10.1016/j.carbon.2020.07.061

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nano- and micro-crystals of fullerenes of C-60 and C-70 have been attracted much interest due to their optical and electrical properties. However, molecular crystals such as crystalline fullerenes are generally fragile or brittle due to the weak van der Waals interaction. The mechanical toughness with the elastic deformation is required for the practical applications. Here we show large elastic deformation of C-60 nanowhiskers (C(60)NWs) grown by liquid-liquid interfacial precipitation method using toluene, m-xylene and mesitylene as good solvent. The elastic properties are examined by the bending deformation. The bending behavior strongly depends on the kind of solvent used in the crystal growth. The C(60)NWs with m-xylene and mesitylene exhibit large elastic deformation, whereas ones obtained by using toluene become brittle showing no large deformation in air. It is shown that the large elastic deformation is attributed to the solvated structure or the solvent in the crystals which plays a crucial role as interlocking and buffering of molecules for the bending deformation. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页码：65 / 72

页数：8

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