Multifunctional and high-performance electrothermal films based on carbon black/Ag nanowires/graphene composites
crossref(2024)
Abstract
Abstract A novel carbon black/Ag nanowires/graphene (CB/Ag/G) composite electrothermal film was fabricated via a simple and green method. An Ag/G composite synthesized by liquid-phase exfoliation and in-situ photoreduction was mixed with CB to form a composite conductive ink, and the CB/Ag/G composite electrothermal film with a point-line-plane three-dimensional microstructure was obtained via blade coating process. Both the addition of Ag nanowires and a subsequent compression rolling treatment induced the establishment of effective conductive network in the electrothermal film, endowing it with an outstanding conductivity of 399.4 S cm-1. The CB/Ag/G film reached a Ts of 204 °C with an input voltage of 3.0 V, and was successfully applied in water heating and de-icing, demonstrating its extraordinary electrothermal performance and vast potential for large-scale practical applications. Moreover, the CB/Ag/G film was also used as an electromagnetic shielding film and heat dissipation substrate, showing exceptional electromagnetic shielding (42.5 dB) and heat dissipation properties.
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