Bottom-up Design of Three-Dimensional Carbon-Honeycomb with Superb Specific Strength and High Thermal Conductivity | |
Pang ZQ; Gu XK; Wei YJ(魏宇杰); Yang RG; Dresselhaue MS; Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China. | |
发表期刊 | NANO LETTERS |
2017 | |
卷号 | 17期号:1页码:179-185 |
ISSN | 1530-6984 |
摘要 | Low-dimensional carbon allotropes, from fullerenes, carbon nanotubes, to graphene, have been broadly explored due to their outstanding and special properties. However, there exist significant challenges in retaining such properties of basic building blocks when scaling them up to three-dimensional materials and structures for many technological applications. Here we show theoretically the atomistic structure of a stable three-dimensional carbon honeycomb (C-honeycomb) structure with superb mechanical and thermal properties. A combination of sp(2) bonding in the wall and sp(3) bonding in the triple junction of C-honeycomb is the key to retain stability of C-honeycomb. The specific strength could be the best in structural carbon materials, and this strength remains at,a high level but tunable with different cell sizes. C-honeycomb is also found to have a very high thermal conductivity, for example, >100 W/mK along the axis of the hexagonal cell with a density only similar to 0.4 g/cm(3). Because of the low density and high thermal conductivity, the specific thermal conductivity of C-honeycoMbs is larger than most engineering materials, including metals and high thermal conductivity semiconductors, as well as lightweight CNT arrays and graphene-based nanocomposites. Such high specific strength, high thermal conductivity, and anomalous Poisson's effect in C-honeycomb render it appealing for the use in various engineering practices. |
关键词 | Carbon Honeycomb Specific Strength Thermal Conductivity Sp(3)-bonding |
DOI | 10.1021/acs.nanolett.6b03711 |
URL | 查看原文 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000392036600026 |
关键词[WOS] | Carbon honeycomb ; specific strength ; thermal conductivity ; sp(3)-bonding |
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 |
项目资助者 | National Natural Science Foundation of China (NSFC) [11425211] ; U.S. National Science Foundation [1512776, 1507806] ; Teets Family Endowed Doctoral Fellowship ; National Science Foundation [0821794] |
课题组名称 | LNM微结构计算力学 |
论文分区 | 一类 |
力学所作者排名 | 1 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/59960 |
专题 | 非线性力学国家重点实验室 |
通讯作者 | Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China. |
推荐引用方式 GB/T 7714 | Pang ZQ,Gu XK,Wei YJ,et al. Bottom-up Design of Three-Dimensional Carbon-Honeycomb with Superb Specific Strength and High Thermal Conductivity[J]. NANO LETTERS,2017,17,1,:179-185. |
APA | Pang ZQ,Gu XK,Wei YJ,Yang RG,Dresselhaue MS,&Wei, YJ .(2017).Bottom-up Design of Three-Dimensional Carbon-Honeycomb with Superb Specific Strength and High Thermal Conductivity.NANO LETTERS,17(1),179-185. |
MLA | Pang ZQ,et al."Bottom-up Design of Three-Dimensional Carbon-Honeycomb with Superb Specific Strength and High Thermal Conductivity".NANO LETTERS 17.1(2017):179-185. |
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