Picolinamide-Based Iridium Catalysts for Dehydrogenation of Formic Acid in Water: Effect of Amide N Substituent on Activity and Stability

Ryoichi Kanega; Naoya Onishi; Lin Wang; Kazuhisa Murata; James T Muckerman; Etsuko Fujita; Yuichiro Himeda

doi:10.1002/chem.201800428

Picolinamide-Based Iridium Catalysts for Dehydrogenation of Formic Acid in Water: Effect of Amide N Substituent on Activity and Stability

Chemistry. 2018 Dec 10;24(69):18389-18392. doi: 10.1002/chem.201800428. Epub 2018 Mar 27.

Authors

Ryoichi Kanega¹, Naoya Onishi¹, Lin Wang¹, Kazuhisa Murata¹, James T Muckerman², Etsuko Fujita², Yuichiro Himeda¹

Affiliations

¹ Research Institute of Energy Frontier, Department of Energy and Environment, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan.
² Chemistry Division, Brookhaven National Laboratory, Upton, NY, 11973-5000, USA.

PMID: 29493841
DOI: 10.1002/chem.201800428

Abstract

To develop highly efficient catalysts for dehydrogenation of formic acid in water, we investigated several Cp*Ir catalysts with various amide ligands. The catalyst with an N-phenylpicolinamide ligand exhibited a TOF of 118 000 h^-1 at 60 °C. A constant rate (TOF>35 000 h^-1 ) was maintained for six hours, and a TON of 1 000 000 was achieved at 50 °C.

Keywords: dehydrogenation; formic acid; hydrogen storage.

Abstract

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