Study on three-dimensional porous carbon fiber-MWCNTs-PEG phase change materials and its photo/electricity-thermal conversion performance

•CFPCMs with high load and enthalpy values.•Stable porous structure.•Enhanced photothermal conversion performance.•Environmental friendliness and sustainability.•The potential for multi domain applications. Solar energy, as a crucial green energy source, attracted significant attention. Phase change...

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Bibliographic Details
Published inMaterials letters Vol. 377; p. 137385
Main Authors Jiang, Yuena, Liu, Xianjie, Lin, Fankai, Guo, Zijiao, Qiao, Jiaxin, Fan, Jiahang, Liu, Yifei, Mi, Ruiyu, Min, Xin, Huang, Zhaohui
Format Journal Article
LanguageEnglish
Published Elsevier B.V 15.12.2024
Subjects
Carbon fibers
MWCNTs
PEG
Three-dimensional porous network
Carbon fibers
MWCNTs
PEG
Three-dimensional porous network
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Summary:•CFPCMs with high load and enthalpy values.•Stable porous structure.•Enhanced photothermal conversion performance.•Environmental friendliness and sustainability.•The potential for multi domain applications. Solar energy, as a crucial green energy source, attracted significant attention. Phase change materials (PCMs) addressed the intermittency issue by storing and releasing latent heat. This study innovatively combined carbon fibers (CFs), phenolic resin, polyethylene glycol (PEG), and multi-walled carbon nanotubes (MWCNTs) to create high-loading (>86 %) and high-enthalpy composite CF-based phase change materials (CFPCMs), with melting and freezing enthalpies of 156.6 J/g and 148.6 J/g. CFPCMs demonstrated excellent photothermal and electrothermal properties. The lightweight, porous CFs structure stabilized the PCMs matrix, enhancing its performance while facilitating the reuse of waste CFs products, thus contributing to environmental protection.
ISSN:0167-577X
DOI:10.1016/j.matlet.2024.137385