Recent Progress on N‐heterocyclic Carbene Catalysts in Chemical Fixation of CO2.

N‐heterocyclic carbene and related complexes are a class of catalysts with excellent catalytic activity which are widely used in the chemical fixation of carbon dioxide. This review focuses on the application of a carbene‐metal catalytic system, carbene‐free‐metal catalytic system and synergistic catalytic technology of various technologies in the conversion of carbon dioxide. The possible role of carbene materials in chemical carbon fixation is discussed by analyzing several types of typical chemical carbon fixation mechanisms. [ABSTRACT FROM AUTHOR]