Size Effects on the Mechanical Properties of Nanoporous Graphene Networks

doi:10.1002/adfm.201900311

CORC > 金属研究所 > 中国科学院金属研究所

	Size Effects on the Mechanical Properties of Nanoporous Graphene Networks
	Tang, Doi-Ming 2; Ren, Cui-Lan 3,4; Zhang, Ling 5; Tao, Ying 1,6; Zhang, Peng 7; Lv, Wei 8; Jia, Xiang-Ling 1,6; Jiang, Xiaojuan 5; Zhou, Guangmin 7; Ohmura, Takahito 2
刊名	ADVANCED FUNCTIONAL MATERIALS
	2019-05-09
卷号	29 期号:19 页码:10
关键词	3D assembly graphene in situ electron microscopy mechanical properties nanoindentation size effects
ISSN号	1616-301X
DOI	10.1002/adfm.201900311
通讯作者	Zhang, Ling(zhangling2014@cqu.edu.cn) ; Golberg, Dmitri(golberg.dmitri@nims.go.jp) ; Yang, Quan-Hong(qhyangcn@tju.edu.cn)
英文摘要	It is essential to understand the size scaling effects on the mechanical properties of graphene networks to realize the potential mechanical applications of graphene assemblies. Here, a highly dense-yet-nanoporous graphene monolith (HPGM) is used as a model material of graphene networks to investigate the dependence of mechanical properties on the intrinsic interplanar interactions and the extrinsic specimen size effects. The interactions between graphene sheets could be enhanced by heat treatment and the plastic HPGM is transformed into a highly elastic network. A strong size effect is revealed by in situ compression of micro- and nanopillars inside electron microscopes. Both the modulus and strength are drastically increased as the specimen size reduces to approximate to 100 nm, because of the reduced weak links in a small volume. Molecular dynamics simulations reveal the deformation mechanism involving slip-stick sliding, bending, buckling of graphene sheets, collapsing, and densification of graphene cells. In addition, a size-dependent brittle-to-ductile transition of the HPGM nanopillars is discovered and understood by the competition between volumetric deformation energy and critical dilation energy.
资助项目	JSPS KAKENHI[25820336] ; National Natural Science Foundation of China[51522210] ; State Key Research and Development Program of MOST of China[2016YFB0700403] ; Hundred Talents Program of CAS ; International Center for Young Scientists (ICYS) ; World Premier International (WPI) Center for Materials Nanoarchitectonics (MANA) ; National Science Fund for Distinguished Young Scholars, China[51525204] ; Australian Research Council (ARC)[FL 160100089] ; QUT project[322170-0355/51] ; Shanghai Municipal Science and Technology Commission[16ZR1443100] ; Shanghai Supercomputer Center
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000471333600018
资助机构	JSPS KAKENHI ; National Natural Science Foundation of China ; State Key Research and Development Program of MOST of China ; Hundred Talents Program of CAS ; International Center for Young Scientists (ICYS) ; World Premier International (WPI) Center for Materials Nanoarchitectonics (MANA) ; National Science Fund for Distinguished Young Scholars, China ; Australian Research Council (ARC) ; QUT project ; Shanghai Municipal Science and Technology Commission ; Shanghai Supercomputer Center
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/134032]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, Ling; Golberg, Dmitri; Yang, Quan-Hong
作者单位	1.Tianjin Univ, Sch Chem Engn & Technol, State Key Lab Chem Engn, Nanoyang Grp, Tianjin 300072, Peoples R China 2.NIMS, Namiki 1-1 & Sengen 1-2-1, Tsukuba, Ibaraki 3050044, Japan 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 4.Chinese Acad Sci, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China 5.Chongqing Univ, Coll Mat Sci & Engn, Electron Microscopy Ctr, Shazhengjie 174, Chongqing 400044, Peoples R China 6.Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China 7.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 8.Tsinghua Univ, Grad Sch Shenzhen, Engn Lab Functionalized Carbon Mat, Shenzhen Key Lab Graphene Based Mat, Shenzhen 518055, Peoples R China 9.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 10.Univ Wollongong, Australian Inst Innovat Mat, Squires Way, North Wollongong, NSW 2500, Australia
推荐引用方式 GB/T 7714	Tang, Doi-Ming,Ren, Cui-Lan,Zhang, Ling,et al. Size Effects on the Mechanical Properties of Nanoporous Graphene Networks[J]. ADVANCED FUNCTIONAL MATERIALS,2019,29(19):10.
APA	Tang, Doi-Ming.,Ren, Cui-Lan.,Zhang, Ling.,Tao, Ying.,Zhang, Peng.,...&Yang, Quan-Hong.(2019).Size Effects on the Mechanical Properties of Nanoporous Graphene Networks.ADVANCED FUNCTIONAL MATERIALS,29(19),10.
MLA	Tang, Doi-Ming,et al."Size Effects on the Mechanical Properties of Nanoporous Graphene Networks".ADVANCED FUNCTIONAL MATERIALS 29.19(2019):10.