More Than Just a Reagent: The Rise of Renewable Organohydrides for Catalytic Reduction of Carbon Dioxide. Issue 3 (23rd December 2020)

• Record Type: Journal Article
• Authors: Ghosh, Debashis; Kumar, George Rajendra; Subramanian, Saravanan; Tanaka, Koji
• Is Part Of: ChemSusChem. Volume 14:Issue 3(2021)
• Page Start: 824
• Page End: 841
• Publication Date: 2020-12-23
• Subjects: CO2 valorization -- cofactors -- electrochemistry -- homogeneous catalysis -- hydrides; Green chemistry -- Periodicals; Sustainable engineering -- Periodicals; Chemistry -- Periodicals; Chemical engineering -- Periodicals; 660
• DOI: 10.1002/cssc.202002660
• Languages: English
• ISSNs: 1864-5631

Abstract

Abstract: Stoichiometric carbon dioxide reduction to highly reduced C1 molecules, such as formic acid (2e − ), formaldehyde (4e − ), methanol (6e − ) or even most‐reduced methane (8e − ), has been successfully achieved by using organosilanes, organoboranes, and frustrated Lewis Pairs (FLPs) in the presence of suitable catalyst. The development of renewable organohydride compounds could be the best alternative in this regard as they have shown promise for the transfer of hydride directly to CO2 . Reduction of CO2 by two electrons and two protons to afford formic acid by using renewable organohydride molecules has recently been investigated by various groups. However, catalytic CO2 reduction to ≥2e − ‐reduced products by using renewable organohydride‐based molecules has rarely been explored. This Minireview summarizes important findings in this regard, encompassing both stoichiometric and catalytic CO2 reduction. Abstract : More than meets the eye : Multielectron CO2 reduction has been accomplished by stoichiometric use of various nonmetallic hydrides in the presence of catalysts. However, to achieve catalytic CO2 reduction to ≥2e – ‐reduced products, a renewable organohydride could be a promising candidate to transfer hydride directly to CO2 without need for catalysts.