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Cobalt-Catalyzed Aqueous Dehydrogenation of Formic Acid.

ABSTRACT: Among the known liquid organic hydrogen carriers, formic acid attracts increasing interest in the context of safe and reversible storage of hydrogen. Here, the first molecularly defined cobalt pincer complex is disclosed for the dehydrogenation of formic acid in aqueous medium under mild conditions. Crucial for catalytic activity is the use of the specific complex 3. Compared to related ruthenium and manganese complexes 7 and 8, this optimal cobalt complex showed improved performance. DFT computations support an innocent non-classical bifunctional outer-sphere mechanism on the triplet state potential energy surface.

SUBMITTER: Zhou W

PROVIDER: S-EPMC6618042 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

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Cobalt-Catalyzed Aqueous Dehydrogenation of Formic Acid.

Zhou Wei W Wei Zhihong Z Spannenberg Anke A Jiao Haijun H Junge Kathrin K Junge Henrik H Beller Matthias M

Chemistry (Weinheim an der Bergstrasse, Germany) 20190510 36

Among the known liquid organic hydrogen carriers, formic acid attracts increasing interest in the context of safe and reversible storage of hydrogen. Here, the first molecularly defined cobalt pincer complex is disclosed for the dehydrogenation of formic acid in aqueous medium under mild conditions. Crucial for catalytic activity is the use of the specific complex 3. Compared to related ruthenium and manganese complexes 7 and 8, this optimal cobalt complex showed improved performance. DFT comput ...[more]

PMID: 30938464

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