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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.
Source PublicationNANO LETTERS
2017
Volume17Issue:1Pages:179-185
ISSN1530-6984
Abstract

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.

KeywordCarbon Honeycomb Specific Strength Thermal Conductivity Sp(3)-bonding
DOI10.1021/acs.nanolett.6b03711
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000392036600026
WOS KeywordCarbon honeycomb ; specific strength ; thermal conductivity ; sp(3)-bonding
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
Funding OrganizationNational Natural Science Foundation of China (NSFC) [11425211] ; U.S. National Science Foundation [1512776, 1507806] ; Teets Family Endowed Doctoral Fellowship ; National Science Foundation [0821794]
DepartmentLNM微结构计算力学
Classification一类
Ranking1
Citation statistics
Cited Times:36[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59960
Collection非线性力学国家重点实验室
Corresponding AuthorWei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Recommended Citation
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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