Polyurethane-based solid-solid phase change materials with halloysite nanotubes-hybrid graphene aerogels for efficient light- and electro-thermal conversion and storage
Polyurethane-based solid-solid phase change materials with halloysite nanotubes-hybrid graphene aerogels for efficient light- and electro-thermal conversion and storage
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DOI：
10.1016/j.carbon.2018.10.083
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发表时间：
2019-02
期刊：
影响因子：
10.9
通讯作者：
Yan Zhou;Xiaojian Wang;Xiangdong Liu;Dekun Sheng;Fance Ji;Li Dong;Shaobin Xu;Haohao Wu;
中科院分区：
文献类型：
--
作者：
Yan Zhou;Xiaojian Wang;Xiangdong Liu;Dekun Sheng;Fance Ji;Li Dong;Shaobin Xu;Haohao Wu;
本文采用真空浸渍法制备了埃洛石纳米管（HNTs）-石墨烯气凝胶（GA）杂化的聚丙烯基固-固相变材料。作为支撑骨架，具有连续多孔结构的HNTs-GA赋予体系优异的光热（η = 75.6%）和电热（η = 67.2%）能量转换和储存能力。HNTs不仅提高了GA的还原度，而且通过异相成核效应提高了体系的潜热。该材料具有较高的相变潜热、优异的热稳定性和热可靠性，以及显著的光/电-热能量转换能力，在储能器件方面具有很大的应用潜力。
In this study, polyurethane-based solid-solid phase change materials with halloysite nanotubes (HNTs)-hybrid graphene aerogel (GA) have been fabricated through vacuum impregnation. As a supporting skeleton, the air-dried HNTs-GA with continuous porous structure endows the system with excellent light-thermal (η = 75.6%) and electro-thermal (η = 67.2%) energy conversion and storage ability. HNTs not only improve the reduction degree of GA, but also enhance the latent heat of the system through heterogeneous nucleation effects. The synthesized materials with high latent heat, excellent thermal reliability and stability, remarkable light/electro-thermal energy conversion ability show great potentials in applications of energy storage devices.