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Published in: Cellulose 3/2023

12-12-2022 | Original Research

One-way freezing method to construct MWCNTs/BC framework in melamine foam for composite phase change materials applied in thermal management and energy conversion

Authors: Yao Chu, Yibo Wang, Shiru Min, Weijia Xue, Lingang Li, Fenglin Huang, Yibing Cai

Published in: Cellulose | Issue 3/2023

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Abstract

Latent heat storage (LHS) possesses a great energy storage density, which can reduce the pressure of imbalance between energy consumption and supply. As a commonly used medium for LHS, solid-liquid phase change materials (PCMs) have received growing attentions. However, some inherent defects such as strong rigidity, easy leakage and low thermal conductivity limit further their applications. In this work, a flexible porous framework was constructed using the melamine foam (MF) as the template and the multi-walled carbon nanotubes (MWCNTs)/bacterial cellulose (BC) hybrids as the fillers, then the PEG was encapsulated to fabricate the composite PCMs. Herein, we investigated the microstructure and flexibility of the three-dimensional (3D) porous matrix, and the microscopic morphology, encapsulation capacity, heat storage/release behavior, temperature regulation ability and light to thermal conversion performance of the composite PCMs were also studied. Experimental results suggested that the prepared 3D scaffold had ultra-light characteristics and outstanding resilience performance. The involvement of BC increased the specific surface area of the MF skeleton, thus its adsorption to PEG was more stable. The thermal energy storage efficiency of composite PCMs was as high as 91.5%. Meanwhile, the composite PCMs performed sensitive thermal response behavior and could generate shape memory driven by heat. Furthermore, it also showed excellent light to thermal conversion performance with a corresponding conversion efficiency of 87.9%. This study provides a new strategy for the design and development of advanced composite PCMs, which is expected to expand the applications of PCMs in heat storage, energy conversion, solar energy utilization, and infrared stealth of military targets.

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Appendix
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Literature
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go back to reference Yang J, Tang L, Bao R et al (2016) An ice-templated assembly strategy to construct graphene oxide/boron nitride hybrid porous scaffolds in phase change materials with enhanced thermal conductivity and shape stability for light-thermal-electric energy conversion. J Mater Chem A 4:18841–18851. https://doi.org/10.1039/c6ta08454kCrossRef Yang J, Tang L, Bao R et al (2016) An ice-templated assembly strategy to construct graphene oxide/boron nitride hybrid porous scaffolds in phase change materials with enhanced thermal conductivity and shape stability for light-thermal-electric energy conversion. J Mater Chem A 4:18841–18851. https://​doi.​org/​10.​1039/​c6ta08454kCrossRef
Metadata
Title
One-way freezing method to construct MWCNTs/BC framework in melamine foam for composite phase change materials applied in thermal management and energy conversion
Authors
Yao Chu
Yibo Wang
Shiru Min
Weijia Xue
Lingang Li
Fenglin Huang
Yibing Cai
Publication date
12-12-2022
Publisher
Springer Netherlands
Published in
Cellulose / Issue 3/2023
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-022-04953-4

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