Nanoindentation analysis of 3D-pillared carbon nanostructures used for hydrogen storage

被引：5
|
作者：
Fang, Te-Hua [1 ]
Chang, Win-Jin [2 ]
Huang, Chao-Chun [1 ]
Sun, Wei-Li [1 ]
机构：
[1] Natl Kaohsiung Univ Appl Sci, Dept Mech Engn, Kaohsiung 807, Taiwan
[2] Kun San Univ, Dept Mech Engn, Tainan 710, Taiwan
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2016年 / 41卷 / 31期
关键词：
Molecular dynamics simulations; Nanoindentation test; Hydrogen storage; Pillared carbon nanostructure; GRAPHENE; ADSORPTION; NANOTUBES; CAPACITY;
D O I：
10.1016/j.ijhydene.2016.05.300
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：
Molecular dynamics simulations are performed to study the mechanical behavior of hydrogen adsorption by a three-dimensional pillared nanostructure comprising graphene sheets and carbon nanotubes (CNTs). The hardness and reduced modulus of the nano structures containing (5,5), (7,4), (9,0), and (10,10) CNTs are investigated using a nano indentation test. Results indicate that the effects of different types of CNTs on the hardness, reduced modulus, and dissipation energy of the nanostructure are significant. In addition, the adsorption rate of the nanostructures is compared before and after nano indentation. In the case of (7,4) CNT, the simulation showed an approximate 20% decrease in the adsorption rate of the nanostructure after nanoindentation. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：13771 / 13776
页数：6
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