The development of molecular organometallic electrocatalysts for the reduction of carbon dioxide (CO2) is reviewed. Organometallic complexes are a promising subset of the many catalysts capable of electrochemical reduction of carbon dioxide to organic small molecules such as carbon monoxide (CO), formate (HCO2), and oxalate (C2O42). The carbon-based supporting ligands of organometallic complexes provide electron-rich metal centers and engender good chemical stability, factors that help place organometallic catalysts among the most impressive molecular systems for CO2 reduction. This chapter provides a comprehensive review of CO2 electroreduction by organometallic complexes.

Gonell, S. G.; Miller, A. J. M., Carbon Dioxide Electroreduction Catalyzed by Organometallic Complexes. In Advances in Organometallic Chemistry, Vol 70, First ed., Pérez, P. J.; Stone, F. G. A.; West, R., Eds., Academic Press, 2018, Vol. 70, pp. 1-69. https://dx.doi.org/10.1016/bs.adomc.2018.07.001