Carbon honeycomb structure with high axial thermal transport and strong robustness

Thermal transport properties of low-dimensional nanomaterials are highly anisotropic and sensitive to the structural disorder, which can greatly limit their applications in heat dissipation. In this work, we unveil that the carbon honeycomb structures which have high in-plane thermal conductivity si...

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Bibliographic Details
Published inRare metals Vol. 42; no. 8; pp. 2679 - 2687
Main Authors Ren, Wei-Jun, Lu, Shuang, Yu, Cui-Qian, He, Jia, Chen, Jie
Format Journal Article
LanguageEnglish
Published Beijing Nonferrous Metals Society of China 01.08.2023
Springer Nature B.V
Subjects
Biomaterials
Boron nitride
Carbon
Chemistry and Materials Science
Dissipation
Energy
Graphene
Heat conductivity
Heat transfer
Honeycomb structures
Mass production
Materials Engineering
Materials Science
Metallic Materials
Molecular dynamics
Nanomaterials
Nanoscale Science and Technology
Original Article
Physical Chemistry
Room temperature
Thermal conductivity
Thermal management
Transport properties
Phonon transmission
Structural disorder
Thermal conductivity
Molecular dynamics simulation
Carbon honeycomb
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Summary:Thermal transport properties of low-dimensional nanomaterials are highly anisotropic and sensitive to the structural disorder, which can greatly limit their applications in heat dissipation. In this work, we unveil that the carbon honeycomb structures which have high in-plane thermal conductivity simultaneously possess high axial thermal conductivity. Based on non-equilibrium molecular dynamics simulations, we find that the intrinsic axial thermal conductivity of carbon honeycomb structure reaches 746 W·m −1 ·K −1 at room temperature, comparable to that of good heat dissipation materials such as hexagonal boron nitride. By comparing the phonon transmission spectrum between carbon honeycombs and few layer graphene, the physical mechanism responsible for the high axial thermal conductivity of carbon honeycombs is discussed. More importantly, our simulation results further demonstrate that the high axial thermal conductivity of carbon honeycomb structure is robust to the structural disorder, which is a common issue during the mass production of the carbon honeycomb structure. Our study suggests that the carbon honeycomb structure has unique advantages to serve as the thermal management material for practical applications. Graphical abstract
ISSN:1001-0521
1867-7185
DOI:10.1007/s12598-023-02314-z