Effect of two-dimensional graphene oxide on the phase change stability of carbon nanotubes and their application for thermal energy storage

Acid-treated carbon nanotubes have a significant improvement on the phase change behavior of nanofluids through the elimination of supercooling degrees and improvement on thermal conductivity. However, it has been found that these carbon nanotubes aggregated after a single phase change cycle. In thi...

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Main Authors: Mu, Chenzhong, Sze, Jia Yin, Chen, Xuelong, Romagnoli, Alessandro
Other Authors: School of Materials Science and Engineering
Format: Article
Language:English
Published: 2021
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Online Access:https://hdl.handle.net/10356/151788
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1517882021-07-21T08:42:02Z Effect of two-dimensional graphene oxide on the phase change stability of carbon nanotubes and their application for thermal energy storage Mu, Chenzhong Sze, Jia Yin Chen, Xuelong Romagnoli, Alessandro School of Materials Science and Engineering School of Mechanical and Aerospace Engineering Energy Research Institute @ NTU (ERI@N) Engineering::General Carbon Nanotubes Graphene Oxide Acid-treated carbon nanotubes have a significant improvement on the phase change behavior of nanofluids through the elimination of supercooling degrees and improvement on thermal conductivity. However, it has been found that these carbon nanotubes aggregated after a single phase change cycle. In this study, this problem has been successfully solved by the incorporation of graphene oxide with acid-treated multi-walled carbon nanotubes (of diameters from 10 to 15 nm) to form an interpenetrated structure of nanofillers with good stability of at least 90 cycles. The efficacy of the carbon nanotubes and graphene oxide nanofillers with different ratios has been demonstrated to shorten the phase change duration of the nanofluids with insignificant reduction to their latent heat. The synergy of two different dimensional nanofillers prevented the aggregation of acid-treated carbon nanotubes without the use of surfactants and achieved high-energy storage capacity and reliability. National Research Foundation (NRF) The authors are grateful to the support given by the National Research Foundation, Prime Minister’s Office, Singapore, under its Energy NIC grant (NRF Award No.: NRF-ENIC-SERTD-SMES-NTUJTCI3C-2016), to conduct this study. 2021-07-21T08:42:02Z 2021-07-21T08:42:02Z 2019 Journal Article Mu, C., Sze, J. Y., Chen, X. & Romagnoli, A. (2019). Effect of two-dimensional graphene oxide on the phase change stability of carbon nanotubes and their application for thermal energy storage. Journal of Nanoparticle Research, 21(2), 26-. https://dx.doi.org/10.1007/s11051-019-4460-2 1388-0764 0000-0003-1221-7445 https://hdl.handle.net/10356/151788 10.1007/s11051-019-4460-2 2-s2.0-85061191704 2 21 26 en NRF-ENIC-SERTD-SMES-NTUJTCI3C-2016 Journal of Nanoparticle Research © 2019 Springer Nature B.V. All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::General
Carbon Nanotubes
Graphene Oxide
spellingShingle Engineering::General
Carbon Nanotubes
Graphene Oxide
Mu, Chenzhong
Sze, Jia Yin
Chen, Xuelong
Romagnoli, Alessandro
Effect of two-dimensional graphene oxide on the phase change stability of carbon nanotubes and their application for thermal energy storage
description Acid-treated carbon nanotubes have a significant improvement on the phase change behavior of nanofluids through the elimination of supercooling degrees and improvement on thermal conductivity. However, it has been found that these carbon nanotubes aggregated after a single phase change cycle. In this study, this problem has been successfully solved by the incorporation of graphene oxide with acid-treated multi-walled carbon nanotubes (of diameters from 10 to 15 nm) to form an interpenetrated structure of nanofillers with good stability of at least 90 cycles. The efficacy of the carbon nanotubes and graphene oxide nanofillers with different ratios has been demonstrated to shorten the phase change duration of the nanofluids with insignificant reduction to their latent heat. The synergy of two different dimensional nanofillers prevented the aggregation of acid-treated carbon nanotubes without the use of surfactants and achieved high-energy storage capacity and reliability.
author2 School of Materials Science and Engineering
author_facet School of Materials Science and Engineering
Mu, Chenzhong
Sze, Jia Yin
Chen, Xuelong
Romagnoli, Alessandro
format Article
author Mu, Chenzhong
Sze, Jia Yin
Chen, Xuelong
Romagnoli, Alessandro
author_sort Mu, Chenzhong
title Effect of two-dimensional graphene oxide on the phase change stability of carbon nanotubes and their application for thermal energy storage
title_short Effect of two-dimensional graphene oxide on the phase change stability of carbon nanotubes and their application for thermal energy storage
title_full Effect of two-dimensional graphene oxide on the phase change stability of carbon nanotubes and their application for thermal energy storage
title_fullStr Effect of two-dimensional graphene oxide on the phase change stability of carbon nanotubes and their application for thermal energy storage
title_full_unstemmed Effect of two-dimensional graphene oxide on the phase change stability of carbon nanotubes and their application for thermal energy storage
title_sort effect of two-dimensional graphene oxide on the phase change stability of carbon nanotubes and their application for thermal energy storage
publishDate 2021
url https://hdl.handle.net/10356/151788
_version_ 1707050412614352896