One-Step Preparation of Form-Stable Phase Change Material through Self-Assembly of Fatty Acid and Graphene

Amir Reza Akhiani, Mohammad Mehrali, Sara Tahan Latibari, Mehdi Mehrali, T.m. Indra Mahlia, Emad Sadeghinezhad, Hendrik Simon Cornelis Metselaar

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

For the first time, a one-step (self-assembly) method is introduced to prepare a phase change material (PCM) composite consisting of palmitic acid (PA) and minimal amount (0.6%) of oleylamine-functionalized reduced graphene oxide (OA-rGO) as a supporting material. Graphene oxide was reduced and functionalized with long chain alkylamine, oleylamine (OA), to adsorb palmitic acid (PA) and was simultaneously self-assembled into a three-dimensional structure. This technique eliminates common freeze-drying and impregnation steps since the phase change material is adsorbed in situ, and there was clearly no shrinkage during the drying process. In addition, the connected graphene network provides nuclei for the heterogeneous nucleation and crystallization of PA with an enhanced heat transfer to and from the PCM and retains excellent shape-stable property which prevents the leakage of molten PA. The obtained composites exhibit a large phase change enthalpy (99.6%), enhanced thermal conductivity (150%), excellent cycling performance, and substantial sunlight adsorption.

Original languageEnglish
Pages (from-to)22787-22796
Number of pages10
JournalJournal of Physical Chemistry C
Volume119
Issue number40
DOIs
Publication statusPublished - 08 Oct 2015

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palmitic acid
Palmitic acid
phase change materials
Graphite
Palmitic Acid
Phase change materials
fatty acids
Fatty acids
Self assembly
Graphene
self assembly
graphene
Fatty Acids
preparation
Oxides
Drying
freeze drying
composite materials
oxides
Leakage (fluid)

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

Cite this

Akhiani, A. R., Mehrali, M., Tahan Latibari, S., Mehrali, M., Mahlia, T. M. I., Sadeghinezhad, E., & Metselaar, H. S. C. (2015). One-Step Preparation of Form-Stable Phase Change Material through Self-Assembly of Fatty Acid and Graphene. Journal of Physical Chemistry C, 119(40), 22787-22796. https://doi.org/10.1021/acs.jpcc.5b06089
Akhiani, Amir Reza ; Mehrali, Mohammad ; Tahan Latibari, Sara ; Mehrali, Mehdi ; Mahlia, T.m. Indra ; Sadeghinezhad, Emad ; Metselaar, Hendrik Simon Cornelis. / One-Step Preparation of Form-Stable Phase Change Material through Self-Assembly of Fatty Acid and Graphene. In: Journal of Physical Chemistry C. 2015 ; Vol. 119, No. 40. pp. 22787-22796.
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Akhiani, AR, Mehrali, M, Tahan Latibari, S, Mehrali, M, Mahlia, TMI, Sadeghinezhad, E & Metselaar, HSC 2015, 'One-Step Preparation of Form-Stable Phase Change Material through Self-Assembly of Fatty Acid and Graphene', Journal of Physical Chemistry C, vol. 119, no. 40, pp. 22787-22796. https://doi.org/10.1021/acs.jpcc.5b06089

One-Step Preparation of Form-Stable Phase Change Material through Self-Assembly of Fatty Acid and Graphene. / Akhiani, Amir Reza; Mehrali, Mohammad; Tahan Latibari, Sara; Mehrali, Mehdi; Mahlia, T.m. Indra; Sadeghinezhad, Emad; Metselaar, Hendrik Simon Cornelis.

In: Journal of Physical Chemistry C, Vol. 119, No. 40, 08.10.2015, p. 22787-22796.

Research output: Contribution to journalArticle

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AU - Mahlia, T.m. Indra

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AU - Metselaar, Hendrik Simon Cornelis

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