Application of metal-organic frameworks in CO₂ hydrogenation

The dramatic increase in atmospheric CO₂ concentrations has attracted people's attention, and many strategies have been developed to convert CO₂ into high-value chemicals. Metal-organic frameworks (MOFs), as a class of versatile materials, can be used in the CO₂ capture and conversion because of their unique porosity, large specific surface area, rich pore structure, multiple active centers, good stability and recyclability. Various functional nanomaterials have been designed and synthesized based on metal organic framework (MOF) of crystalline porous materials to meet these challenges. Herein, in this review, the latest processes of MOFs in field the of CO₂ hydrogenation to carbon monoxide, methane, formic acid, methanol and olefins are summarized, and the synthesis methods of catalysts based on MOFs and the reasons for their high catalytic activity are analyzed. Besides, a brief introduction to improve the catalytic activity of the new MOF material and explore the feasible strategies for CO₂ conversion are advised. Finally, the paper discusses the main challenges and opportunities of MOF-type catalysts in CO₂ chemical conversion, and presents a brief outlook on further developments in this research area.