Cross-plane heat transfer through single-layer carbon structures

Research output: Contribution to journalArticleAcademicpeer-review

5 Citations (Scopus)

Abstract

Graphene-based nano structures are recently proposed to function as additives to improve the conductivity of thermally sluggish phase change materials (PCMs). Based on existing researches, the improvement is dependent not only on the matrix material, but also on the geometry of the carbon structure. To gain more insight into the nano-scale thermal transport problem, we launch the current pilot research using water as the matrix material, to represent the hydroxyl-grouprich sugar alcohols as PCMs. We have found that the heat conduction across a graphene layer to water is much faster than the heat conduction to the graphene layer itself. Also, the high graphene-water thermal contact resistance fails to acknowledge the fast thermal kinetics of the low frequency phonons. In the investigation of the geometry effect, the cross-plane heat transfer coefficient is found to decrease with decreasing CNT diameter with an exception of the CNT(9,9).
LanguageEnglish
Pages5358-5365
Number of pages8
JournalPhysical Chemistry Chemical Physics
Volume18
DOIs
StatePublished - 21 Jan 2016

Fingerprint

Graphite
graphene
Carbon
heat transfer
Heat transfer
matrix materials
phase change materials
Phase change materials
carbon
Heat conduction
conductive heat transfer
Water
carbon nanotubes
water
Sugar Alcohols
Geometry
Contact resistance
Phonons
sugars
geometry

Keywords

  • Graphene
  • Molecular dynamics
  • heat transfer
  • carbon nanotube

Cite this

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title = "Cross-plane heat transfer through single-layer carbon structures",
abstract = "Graphene-based nano structures are recently proposed to function as additives to improve the conductivity of thermally sluggish phase change materials (PCMs). Based on existing researches, the improvement is dependent not only on the matrix material, but also on the geometry of the carbon structure. To gain more insight into the nano-scale thermal transport problem, we launch the current pilot research using water as the matrix material, to represent the hydroxyl-grouprich sugar alcohols as PCMs. We have found that the heat conduction across a graphene layer to water is much faster than the heat conduction to the graphene layer itself. Also, the high graphene-water thermal contact resistance fails to acknowledge the fast thermal kinetics of the low frequency phonons. In the investigation of the geometry effect, the cross-plane heat transfer coefficient is found to decrease with decreasing CNT diameter with an exception of the CNT(9,9).",
keywords = "Graphene, Molecular dynamics, heat transfer, carbon nanotube",
author = "H. Zhang and S.V. Nedea and C.C.M. Rindt and D.M.J. Smeulders",
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day = "21",
doi = "10.1039/C5CP07715J",
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journal = "Physical Chemistry Chemical Physics",
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Cross-plane heat transfer through single-layer carbon structures. / Zhang, H.; Nedea, S.V.; Rindt, C.C.M.; Smeulders, D.M.J.

In: Physical Chemistry Chemical Physics, Vol. 18, 21.01.2016, p. 5358-5365.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Cross-plane heat transfer through single-layer carbon structures

AU - Zhang,H.

AU - Nedea,S.V.

AU - Rindt,C.C.M.

AU - Smeulders,D.M.J.

PY - 2016/1/21

Y1 - 2016/1/21

N2 - Graphene-based nano structures are recently proposed to function as additives to improve the conductivity of thermally sluggish phase change materials (PCMs). Based on existing researches, the improvement is dependent not only on the matrix material, but also on the geometry of the carbon structure. To gain more insight into the nano-scale thermal transport problem, we launch the current pilot research using water as the matrix material, to represent the hydroxyl-grouprich sugar alcohols as PCMs. We have found that the heat conduction across a graphene layer to water is much faster than the heat conduction to the graphene layer itself. Also, the high graphene-water thermal contact resistance fails to acknowledge the fast thermal kinetics of the low frequency phonons. In the investigation of the geometry effect, the cross-plane heat transfer coefficient is found to decrease with decreasing CNT diameter with an exception of the CNT(9,9).

AB - Graphene-based nano structures are recently proposed to function as additives to improve the conductivity of thermally sluggish phase change materials (PCMs). Based on existing researches, the improvement is dependent not only on the matrix material, but also on the geometry of the carbon structure. To gain more insight into the nano-scale thermal transport problem, we launch the current pilot research using water as the matrix material, to represent the hydroxyl-grouprich sugar alcohols as PCMs. We have found that the heat conduction across a graphene layer to water is much faster than the heat conduction to the graphene layer itself. Also, the high graphene-water thermal contact resistance fails to acknowledge the fast thermal kinetics of the low frequency phonons. In the investigation of the geometry effect, the cross-plane heat transfer coefficient is found to decrease with decreasing CNT diameter with an exception of the CNT(9,9).

KW - Graphene

KW - Molecular dynamics

KW - heat transfer

KW - carbon nanotube

U2 - 10.1039/C5CP07715J

DO - 10.1039/C5CP07715J

M3 - Article

VL - 18

SP - 5358

EP - 5365

JO - Physical Chemistry Chemical Physics

T2 - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

SN - 1463-9076

ER -