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A highly active copper catalyst for the hydrogenation of Carbon Dioxide to formate under ambient conditions

Abstract

Carbon dioxide (CO2) can be an important reactant which can be used for the syntheses of varied types of industrially important chemicals. Hence, investigation concerning with the conversion of CO2 into valuable energy-relevant chemicals is an important and current topic in molecular catalysis. Recent research on molecular catalysts has led to improved rates for conversion of CO2 to energy-rich products such as formate, but the catalysts based on first-row transition metals is underdeveloped. Copper(I) complexes containing 1,1′-bis(di-tert-butylphosphino) ferrocene ligand were found to promote the catalytic hydrogenation of CO2 to formate in the presence of DBU as the base where catalytic conversion of CO2 via hydrogenation using in situ gaseous H2 (granulated tin metal and concentrated HCl) to produce valuable energy-relevant chemicals and therefore is a promising safe and simple strategy to conduct reactions under ambient pressure at room temperature. Aiming to this goal, we report an efficient copper(I) complex based catalyst [CuI(dtbpf)] to achieve ambient-pressure CO2 hydrogenation catalysis for generating formate salt (HCO2-) with turnover number (TON) values of 326 to 1.065 x 105 in 12 to 48 h of reaction at 25°C to 80°C. Outstanding catalytic performance makes [CuI(dtbpf)] a potential candidate for realizing the large-scale production of formate by CO2 hydrogenation.

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Supplementary files

Article information


Submitted
06 Dec 2019
Accepted
07 Feb 2020
First published
10 Feb 2020

Dalton Trans., 2020, Accepted Manuscript
Article type
Paper

A highly active copper catalyst for the hydrogenation of Carbon Dioxide to formate under ambient conditions

M. Trivedi, K. Chaudhary, D. Masram, A. Kumar, G. Kumar, A. Husain and N. Rath, Dalton Trans., 2020, Accepted Manuscript , DOI: 10.1039/C9DT04662C

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