材料科学
热电效应
相变
复合材料
纳米技术
曲面(拓扑)
相(物质)
工程物理
凝聚态物理
化学
工程类
几何学
热力学
物理
数学
有机化学
作者
Yu Liu,Xianjie Liu,Boxuan Zhang,Huijie Hu,Kunlin Chen,Haoxuan Li,David J. S. Birch,Yu Chen,Hua Qiu,Ping Gu
标识
DOI:10.1021/acsami.4c00981
摘要
With the fast development of new science and technology, wearable devices are in great demand in modern human daily life. However, the energy problem is a long-lasting issue to achieve real smart, wearable, and portable devices. Flexible thermoelectric generators (TEGs) based on thermoelectric conversion systems can convert body waste heat into electricity with excellent flexibility and wearability, which shows a new direction to solving this issue. Here in this work, polyethylenimine (PEI) and gold nanoparticles (Au NPs) twin surface-modified carbon nanotube fibers (CNTFs) were designed and prepared to fabricate thermalelectric textiles (TET) with high performance, good air stability, and high-efficiency power generation. To better utilize the heat emitted by the human body, microencapsulated phase change materials (MPCM) were coated on the hot end of the TET to achieve the phase-transition-promoted TET. MPCM-coated TET device could generate 25.7% more energy than the untreated control device, which indicates the great potential of the phase-transition-promoted TET.
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