High efficiency electro- and photo-thermal conversion cellulose nanofiber-based phase change materials for thermal management

被引：44
作者：
Liu, Yu [1 ]
Liu, Hongchen [2 ]
Qi, Haisong [1 ]
机构：
[1] South China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510641, Peoples R China
[2] Zhongyuan Univ Technol, Zhengzhou 450007, Henan, Peoples R China
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2023年 / 629卷
关键词：
Phase change materials; Photo -thermal conversion; Electro-thermal conversion; Thermal management; POLYETHYLENE-GLYCOL;
D O I：
10.1016/j.jcis.2022.08.132
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Novel phase change materials composed of polyethylene glycol (PEG), cellulose nanofibers (CNFs) and carbon nanotubes (CNTs) were developed by an efficient and environment friendly strategy. The CNFs were modified and cross-linked by chitosan to form three-dimensional network structure, which pro-vides strong support for the resulting CNF/CNT/PEG composites. The structure and properties of CNF/ CNT/PEG composites were characterized using scanning electron microscopy, spectrums, and differential scanning calorimeter. They exhibit high latent heat (158.3 J/g), low heat loss (0.75%) and excellent photo -thermal conversion (energy storage efficiency 85.6%), electro-thermal conversion (energy storage effi-ciency 92.3%) properties. Due to their excellent performances, CNF/CNT/PEG composites have great potential to be used as thermal management materials.(c) 2022 Elsevier Inc. All rights reserved.
引用
收藏
页码：478 / 486
页数：9
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