Liquid metal-enabled Mechanical energy-induced CO2 Conversion

We report a green carbon capture and conversion technology offering scalability and economic viability for mitigating CO2 emissions. The technology uses suspensions of gallium liquid metal to reduce CO2 into carbonaceous solid products and O2 at near room temperature. The nonpolar nature of the liquid gallium interface allows the solid products to instantaneously exfoliate, hence keeping active sites accessible. The solid co-contributor of silver-gallium rods ensures a cyclic sustainable process. The overall process relies on mechanical energy as the input, which drives nano dimensional triboelectrochemical reactions. When a gallium/silver fluoride mix at 7:1 mass ratio is employed to create the reaction material, 92% efficiency was obtained at the remarkably low input energy of 230 kW∙h for the capture and conversion of a tonne of CO2 . This green technology presents an economical solution for CO2 emissions. This article is protected by copyright. All rights reserved.