An electromechanical behavior of reduced graphene oxide fiber

被引：9
|
作者：
Meng, Fancheng [1 ]
Wang, Miao [2 ]
Lu, Weibang [2 ]
Li, Qingwen [2 ]
Chou, Tsu-Wei [3 ]
Zheng, Lianxi [1 ]
机构：
[1] Khalifa Univ, Dept Mech Engn, Abu Dhabi 127788, U Arab Emirates
[2] Chinese Acad Sci, Adv Mat Div, Suzhou Inst Nanotech & Nanobion, Suzhou 215123, Peoples R China
[3] Univ Delaware, Dept Mech Engn, Newark, DE 19716 USA
来源：
CARBON | 2016年 / 105卷
关键词：
Chemically reduced graphene oxides - Dynamic absorption - Electrical conductivity - Electromechanical behavior - Electromechanical response - Higher relative humidity - Load change - Water molecule;
D O I：
10.1016/j.carbon.2016.04.037
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：
An electromechanical response of the chemically reduced graphene oxide (rGO) fiber is reported. The rGO fiber has a tensile strength of 159 MPa, and an electrical conductivity of 170 S/cm. When a current is applied, an immediate load-drop, up to 82% of the original loading, can be observed. Such a load-drop is partially reversible when the current is withdrawn. Higher current density (5-20 mA) and higher relative humidity (40%-80%) result in larger load changes. Joule heating induced dynamic absorption and desorption of water molecules, which further induce the rGO sheet sliding and elastic deformation are responsible for this actuation. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：244 / 247
页数：4
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