Issue 15, 2024

The superiority of Pd2+ in CO2 hydrogenation to formic acid

Abstract

The hydrogenation of CO2 to formic acid is an essential subject since formic acid is a promising hydrogen storage material and a valuable commodity chemical. In this study, we report for the first time the hydrogenation of CO2 to formic acid catalyzed by a Pd2+ catalyst, Pd–V/AC–air. The catalyst exhibited extraordinary catalytic activity toward the hydrogenation of CO2 to formic acid. The TON and TOF are up to 4790 and 2825 h−1, respectively, representing the top level among reported heterogeneous Pd catalysts. By combining a study of first-principles density functional theory with experimental results, the superiority of Pd2+ over Pd0 was confirmed. Furthermore, the presence of V modified the electronic state of Pd2+, thus promoting the reaction. This study reports the effect of metal valence and electronic state on the catalytic performance for the first time and provides a new prospect for the design of an efficient heterogeneous catalyst for the hydrogenation of CO2 to formic acid.

Graphical abstract: The superiority of Pd2+ in CO2 hydrogenation to formic acid

Supplementary files

Article information

Article type
Edge Article
Submitted
24 Dec 2023
Accepted
05 Mar 2024
First published
06 Mar 2024
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2024,15, 5525-5530

The superiority of Pd2+ in CO2 hydrogenation to formic acid

Y. Wang, M. Dong, S. Li, B. Chen, H. Liu and B. Han, Chem. Sci., 2024, 15, 5525 DOI: 10.1039/D3SC06925G

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