Integrated and Automated: Liquid Metal‐based System for Full Cycle CO2‐to‐Carbon Conversion

Abstract The urgency for carbon neutrality is driving the need for cost‐effective Carbon Capture and Conversion (iCCC) technology, but the lack of a unified platform for capture, release, and the subsequent in situ catalytic conversion has hindered its widespread adoption. To address this gap, it have showcased the feasibility of achieving an energetically balanced design intertwining CO 2 capture and in situ conversion through a continuous gas‐to‐solid reaction process on the customized liquid metal‐based reaction system. The system exhibits a remarkable carbon production capability, achieving a peak yield of 550.57 µmol C mmol CO 2 ‐ −1 accompanied by 100% carbon conversion rate. The vertically bottom‐up spiral reactor design introduces significant mass transfer enhancements, resulting in a higher conversion yield rate of 8658.3 µmol h −1 (323.24 µmol C mmol CO 2 ‐ −1 ) while requiring an energy input of only 30.79 GJ t −1 CO 2 in a 1.508×10 −3 m 3 unit. The solid carbon produced in the continuous setup also holds the potential for high‐end application value, such as being a high‐performance material for wave adsorption or acting as an efficient photocatalyst. This research insights are poised to chart new pathway into refining the design strategy for CO 2 solidification processes, particularly the seamless melding of carbon capture and in situ conversion.