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Charge effects regulate reversible CO₂ reduction catalysis

Author:
Geri, Jacob B., Ciatti, Joanna L., Szymczak, Nathaniel K.
Source:
Chemical communications 2018 v.54 no.56 pp. 7790-7793
ISSN:
1364-548X
Subject:
carbon dioxide, catalysts, catalytic activity, dehydrogenation, formic acid, hydrogen, hydrogenation, ligands, pH, solvents
Abstract:
Modular but geometrically constrained ligands were used to investigate the impact of key ligand design parameters (charge and bite angle) on CO₂ hydrogenation and formic acid dehydrogenation activity. These studies yielded an optimized catalyst that achieved over 118 000 turnovers in CO₂ hydrogenation, 247 000 turnovers in HCO₂H dehydrogenation, was applied in a hydrogen storage device used for 6 cycles of hydrogen storage/release without requiring changes in pH or solvent, and generated H₂/CO₂ gas at a pressure of 190 atm from formic acid.
Agid:
6177789