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Nanoscale. 2017 Nov 23;9(45):17704-17709. doi: 10.1039/c7nr05449a.

Hierarchically interconnected porous scaffolds for phase change materials with improved thermal conductivity and efficient solar-to-electric energy conversion.

Nanoscale

Jie Yang, Peng Yu, Li-Sheng Tang, Rui-Ying Bao, Zheng-Ying Liu, Ming-Bo Yang, Wei Yang

Affiliations

  1. College of Polymer Science and Engineering, Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu, 610065, Sichuan, People's Republic of China. [email protected].

PMID: 29125172 DOI: 10.1039/c7nr05449a

Abstract

An ice-templating self-assembly strategy and a vacuum impregnation method were used to fabricate polyethylene glycol (PEG)/hierarchical porous scaffold composite phase change materials (PCMs). Hierarchically interconnected porous scaffolds of boron nitride (BN), with the aid of a small amount of graphene oxide (GO), endow the composite PCMs with high thermal conductivity, excellent shape-stability and efficient solar-to-electric energy conversion. The formation of a three-dimensional (3D) thermally conductive pathway in the composites contributes to improving the thermal conductivity up to 2.36 W m

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