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Updated: Apr 27, 2026
Characterizing Lewis Pairs Using Titration Coupled with In Situ Infrared Spectroscopy
Published on: February 20, 2020
Lewis acid-assisted formic acid dehydrogenation using a pincer-supported iron catalyst
Elizabeth A Bielinski1, Paraskevi O Lagaditis, Yuanyuan Zhang
1Department of Chemistry, Yale University , P.O. Box 208107, New Haven, Connecticut 06520, United States.
Abstract:
Formic acid (FA) is an attractive compound for H2 storage. Currently, the most active catalysts for FA dehydrogenation use precious metals. Here, we report a homogeneous iron catalyst that, when used with a Lewis acid (LA) co-catalyst, gives approximately 1,000,000 turnovers for FA dehydrogenation. To date, this is the highest turnover number reported for a first-row transition metal catalyst. Preliminary studies suggest that the LA assists in the decarboxylation of a key iron formate intermediate and can also be used to enhance the reverse process of CO2 hydrogenation.
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