Material design and prospect of dual-functional materials for integrated carbon dioxide capture and conversion

Abstract

Large amounts of CO₂ were discharged into the atmosphere, resulting in a severe greenhouse effect and inducing ecological environmental problems that threaten human survival. Integrated carbon dioxide capture and conversion (ICCC) with Dual Functional Materials (DFMs) was a promising process to capture CO₂ emission in flue gas and convert it into value-added chemicals, reducing energy consumption and economic cost. The catalytic component of DFMs enhances hydrogen source activation and promotes carbonate hydrogenation to produce high value-added chemicals. The hydrogenation process achieved the regeneration of dual-functional materials, which is the key to realizing the ICCC process. This research focuses on DFMs development with different hydrogen sources (hydrogen or light alkanes) for the ICCC process in recent years. In addition, the reaction mechanism and catalytic components modification were discussed to improve the in-situ conversion activity of the ICCC process. Finally, future prospects were anticipated to guide the development and application scenarios of DFMs in the ICCC process.