Harness High-Temperature Thermal Energy via Elastic Thermoelectric Aerogels  

作　　者：Hongxiong Li Zhaofu Ding Quan Zhou Jun Chen Zhuoxin Liu Chunyu Du Lirong Liang Guangming Chen 

机构地区：[1]College of Materials Science and Engineering,Shenzhen University,Shenzhen 518055,People’s Republic of China [2]Department of Bioengineering,University of California,Los Angeles,CA 90095,USA

出　　处：《Nano-Micro Letters》2024年第8期196-210,共15页纳微快报（英文版）

基　　金：financially supported by the Guangdong Basic and Applied Basic Research Foundation(2022A1515110296,2022A1515110432);the Shenzhen Science and Technology Program(20231120171032001);the National Natural Science Foundation of China(No.52242305).

摘　　要：Despite notable progress in thermoelectric(TE)materials and devices,developing TE aerogels with high-temperature resistance,superior TE performance and excellent elasticity to enable self-powered high-temperature monitoring/warning in industrial and wearable applications remains a great challenge.Herein,a highly elastic,flame-retardant and high-temperature-resistant TE aerogel,made of poly(3,4-ethylene dioxythiophene):poly(styrenesulfonate)/single-walled carbon nanotube(PEDOT:PSS/SWCNT)composites,has been fabricated,displaying attractive compression-induced power factor enhancement.The as-fabricated sensors with the aerogel can achieve accurately pressure stimuli detection and wide temperature range monitoring.Subsequently,a flexible TE generator is assembled,consisting of 25 aerogels connected in series,capable of delivering a maximum output power of 400μW when subjected to a temperature difference of 300 K.This demonstrates its outstanding high-temperature heat harvesting capability and promising application prospects for real-time temperature monitoring on industrial high-temperature pipelines.Moreover,the designed self-powered wearable sensing glove can realize precise wide-range temperature detection,high-temperature warning and accurate recognition of human hand gestures.The aerogel-based intelligent wearable sensing system developed for firefighters demonstrates the desired self-powered and highly sensitive high-temperature fire warning capability.Benefitting from these desirable properties,the elastic and high-temperature-resistant aerogels present various promising applications including self-powered high-temperature monitoring,industrial overheat warning,waste heat energy recycling and even wearable healthcare.

关 键 词：THERMOELECTRICS AEROGEL SELF-POWERED High-temperature monitoring High-temperature warning 

分 类 号：TQ427.26[化学工程]