Incorporating Indium Oxide into Microplasma Reactor for CO2 Conversion to Methanol

Abstract The clean conversion of CO 2 is a strategic issue for addressing global climate change and advancing energy transformation. While the current clean CO 2 conversion is limited to the H 2 pyrolysis process, using H 2 O as a proton source is more promising and sustainable. A microplasma discharge method is developed, driven by electricity, and utilized for CO 2 conversion with H 2 O. The microplasma integrates the advantages of high energy density in discharge plasma and microchannel reaction spaces, achieving a rapid resource conversion process of CO 2 and water and a high selectivity for methanol production. By further combining In 2 O 3 with microplasma and optimizing the structure of In 2 O 3 , is improved the selectivity of methanol production to 86.66%. The methanol production rate reached 72.64 mmol g −1 h − ¹, which is higher than other clean energy‐driven conversion technologies. This work provides a green route for uphill reactions in clean CO 2 conversion, offering a new approach for CO 2 emission reduction and resource utilization.