• 专利标题:   Thermoelectric hyperelastic graphene aerogel for, e.g. wearable device, has frame structure in which primary frame is polyurethane fiber network and secondary frame is three-dimensional network formed by active thermoelectric material.
  • 专利号:   CN108275674-A
  • 发明人:   LI Y, WU B, GUO Y, CHEN L, XU H, HOU C, ZHANG Q, WANG H
  • 专利权人:   UNIV DONGHUA
  • 国际专利分类:   C01B032/184, C01B019/00
  • 专利详细信息:   CN108275674-A 13 Jul 2018 C01B-032/184 201859 Pages: 10 Chinese
  • 申请详细信息:   CN108275674-A CN10105518 02 Feb 2018
  • 优先权号:   CN10105518

▎ 摘  要

NOVELTY - A thermoelectric hyperelastic graphene aerogel has a two-stage frame structure in which the primary frame is a polyurethane fiber network and the secondary frame is a three-dimensional network formed by an active thermoelectric material. USE - Thermoelectric hyperelastic graphene aerogel is used in microelectronic energy device, medical monitoring applications, intelligent clothing, and other wearable device. ADVANTAGE - The aerogel efficiently converts heat energy in the environment into electrical energy. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of thermoelectric hyperelastic graphene aerogel, which involves dispersing antimony telluride (Sb2Te3) two-dimensional nanosheets in deionized water, magnetically stirring for 20-50 minutes, ultrasonically processing in a water bath for 30-60 minutes to obtain 1-2.5 mg/ml nanosheet dispersion, dispersing graphite oxide in the nanosheet dispersion, magnetically stirring for 20-50 minutes, ultrasonically processing in a water bath for 72-90 hours to obtain 10-25 mg/ml graphene oxide/nanosheet dispersion, immersing a polyurethane foam in the dispersion for 10-25 minutes ultrasonically at 20-50 W, freezing at -5 degrees C to -196 degrees C for 0.1-24 hours and drying at 5-20 Pa for 48-84 hours, reducing using 30-75 mg/ml ascorbic acid solution by heating at 75-90 degrees C for 10-25 minutes and reducing for 1-4 hours, washing 2-5 times with deionized water and ethanol alternately, and freeze-drying at 5-20 Pa for 48-84 hours.