Proton Relay Mediated Electrocatalytic Hydrogen Evolution by an Economic Co(III) Complex.

Autor: Majumder, D., Kolay, S., Tripathi, V. S.
Zdroj: Electrocatalysis; Jul2023, Vol. 14 Issue 4, p602-610, 9p
Abstrakt: Bis(iminidiacetato)cobaltate(III) complex has been evaluated for electrocatalytic proton reduction. The process follows a rare pathway of protonation of ligand upon addition of a weak acid in DMF/water (9:1 v/v) medium. Thus, the complex becomes electroactive only in the presence of acid. In the presence of weak acid, a new reduction peak corresponding to CoI/Co0 reduction is observed. The electrocatalytic activity towards proton reduction reaction is exhibited by this peak. An electrochemical-chemical-electrochemical (ECE) route initiated by proton relay on ligand site has been established for the electrocatalytic process. The catalytic activity of the complex in DMF/water medium was evaluated by controlled potential electrolysis, turnover number (TON), and turnover frequency (TOF). [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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