Multifunctional and high-performance electrothermal films based on carbon black/Ag nanowires/graphene composites  

作　　者：Zijian Wang Wen Yu Chaochao Gao Zhenye Zhu Jiaheng Zhang 

机构地区：[1]Research Centre of Printed Flexible Electronics,School of Materials Science and Engineering,Harbin Institute of Technology(Shenzhen),Shenzhen,China

出　　处：《npj Flexible Electronics》2024年第1期371-380,共10页npj-柔性电子(英文)

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.21905069,22208073,U21A20307,62127807);the Shenzhen Science and Technology Innovation Committee(Grant Nos.ZDSYS20190902093220279,KQTD20170809110344233,KCXFZ20201221173000001,GXWD20220817125846003,GXWD20201230155427003-20200821181809001,ZX20200151);the Department of Science and Technology of Guangdong Province(Grant No.2020A1515110879).

摘　　要：Fabricating high-conductive composites and constructing highly conductive networks are crucial for high-performance electrothermal film.In this study,an Ag nanowires/graphene(Ag/G)composite synthesized by liquid-phase exfoliation and in-situ photoreduction is mixed with carbon black(CB)to form a composite conductive ink,and a CB/Ag/Gcomposite electrothermal film with a point-line-plane three-dimensional microstructure is obtained via blade coating process.Both the addition of Ag nanowires and a subsequent compression rolling treatment induce the establishment of the effective conductive network in the film,endowing it with an outstanding conductivity of 399.4 S cm^(−1).The film reaches a T_(s) of 204℃ with an input voltage of 3.0 V,and is successfully applied in water heating and de-icing,demonstrating its extraordinary electrothermal performance and vast potential for practical applications.The film is also used as an electromagnetic shielding film and heat dissipation substrate,showing exceptional electromagnetic shielding(42.5 dB)and heat dissipation properties.

关 键 词：NANOWIRES COMPOSITES composite 

分 类 号：TB3[一般工业技术—材料科学与工程]