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Issue 16, 2017
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Carbon nanotube-enhanced double-walled phase-change microcapsules for thermal energy storage

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Abstract

The shell composition and microstructure of microencapsulated phase-change materials (MPCMs) are of vital significance for achieving high thermal and mechanical properties. Herein, a new type of MPCM with double-walled shells (melamine-formaldehyde (MF) resin/carbon nanotube (CNT)-poly(4-styrenesulfonic acid) sodium (PSS)) was developed through a facile layer-by-layer (LbL) self-assembly technique using prefabricated MF resin-encapsulated n-octadecane as the template. The CNTs were well dispersed and highly interconnected in the shell, which greatly enhanced the temperature response and thermal stability of MPCMs. Furthermore, the incorporation of 3.34 wt% CNTs resulted in an average hardness and Young's modulus of MPCMs, respectively, 3.3 and 1.3 times greater than those of microcapsules without CNTs. The double-walled MPCMs exhibited good potential for application in the field of thermal energy storage.

Graphical abstract: Carbon nanotube-enhanced double-walled phase-change microcapsules for thermal energy storage

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Publication details

The article was received on 10 Nov 2016, accepted on 17 Mar 2017 and first published on 20 Mar 2017


Article type: Paper
DOI: 10.1039/C6TA09712J
Citation: J. Mater. Chem. A, 2017,5, 7482-7493
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    Carbon nanotube-enhanced double-walled phase-change microcapsules for thermal energy storage

    Y. Huang, H. Zhang, X. Wan, D. Chen, X. Chen, X. Ye, X. Ouyang, S. Qin, H. Wen and J. Tang, J. Mater. Chem. A, 2017, 5, 7482
    DOI: 10.1039/C6TA09712J

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