| Size Effects on the Mechanical Properties of Nanoporous Graphene Networks | |
| Tang, Doi-Ming1; Ren, Cui-Lan2,3; Zhang, Ling4; Tao, Ying5,6; Zhang, Peng7; Lv, Wei8; Jia, Xiang-Ling5,6; Jiang, Xiaojuan4; Zhou, Guangmin7; Ohmura, Takahito1; Huai, Ping2,3,9; Li, Feng7; Bando, Yoshio1,10,11; Golberg, Dmitri1,12; Yang, Quan-Hong5,6 | |
| 通讯作者 | Zhang, Ling(zhangling2014@cqu.edu.cn) ; Golberg, Dmitri(golberg.dmitri@nims.go.jp) ; Yang, Quan-Hong(qhyangcn@tju.edu.cn) |
| 2019-05-09 | |
| 发表期刊 | ADVANCED FUNCTIONAL MATERIALS
 |
| ISSN | 1616-301X |
| 卷号 | 29期号:19页码:10 |
| 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. |
| 关键词 | 3D assembly graphene in situ electron microscopy mechanical properties nanoindentation size effects |
| 资助者 | 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 |
| DOI | 10.1002/adfm.201900311 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 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 |
| WOS类目 | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| WOS记录号 | WOS:000471333600018 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/134029 |
| 专题 | 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.NIMS, Namiki 1-1 & Sengen 1-2-1, Tsukuba, Ibaraki 3050044, Japan 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 3.Chinese Acad Sci, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China 4.Chongqing Univ, Coll Mat Sci & Engn, Electron Microscopy Ctr, Shazhengjie 174, Chongqing 400044, Peoples R China 5.Tianjin Univ, Sch Chem Engn & Technol, State Key Lab Chem Engn, Nanoyang Grp, Tianjin 300072, 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 11.Tianjin Univ, Inst Mol Plus, 92 Weijin Rd, Tianjin 300072, Peoples R China 12.QUT, Sch Chem Phys & Mech Engn, 2 George St, Brisbane, Qld 4000, 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. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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