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DOE OSTI · 1978751

Electrocatalytic H 2 evolution promoted by a bioinspired (N2S2)Ni( ii ) complex

Sinha, Soumalya·Tran, Giang N.·Na, Hanah·Mirica, Liviu M.
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Abstract

A bioinspired (N2S2)Ni(II) electrocatalyst is reported that produces H 2 from CF 3 CO 2 H with a turnover frequency (TOF) of ~1250 s –1 at low acid concentration (<0.043 M) in MeCN. A mechanism for the H 2 production by this electrocatalyst is proposed and its activity is benchmarked against those of other reported molecular Ni H 2 evolution electrocatalysts. Here, the involvement of a hemilabile pyridyl group of the N2S2 ligand is proposed to mimic the role of a cysteine residue involved in the biological proton reduction performed by [NiFe] hydrogenases.

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Sinha, Soumalya, Tran, Giang N., Na, Hanah, Mirica, Liviu M.. 2021-12-21. Electrocatalytic H 2 evolution promoted by a bioinspired (N2S2)Ni( ii ) complex. https://doi.org/10.1039/d1cc05139c

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