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Macrocyclic cyanocobalamin (vitamin B12) as a homogeneous electrocatalyst for water oxidation under neutral conditions

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Abstract

Highly water-soluble cyanocobalamin (also known as vitamin B12) is the most structurally macrocyclic complex comprising cobalt in the center of a corrin ring. Interestingly, it acts as a robust electrocatalyst in water oxidation at ∼0.58 V overpotential with a faradaic efficiency of 97.50% under neutral buffered conditions. The catalyst is impressively stable even after long-term bulk electrolysis, and homogeneous in nature, as established by a series of experiments and characterization techniques.

Graphical abstract: Macrocyclic cyanocobalamin (vitamin B12) as a homogeneous electrocatalyst for water oxidation under neutral conditions

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Article information


Submitted
12 Nov 2019
Accepted
23 Dec 2019
First published
23 Dec 2019

Chem. Commun., 2020, Advance Article
Article type
Communication

Macrocyclic cyanocobalamin (vitamin B12) as a homogeneous electrocatalyst for water oxidation under neutral conditions

H. M. Shahadat, H. A. Younus, N. Ahmad, S. Zhang, S. Zhuiykov and F. Verpoort, Chem. Commun., 2020, Advance Article , DOI: 10.1039/C9CC08838E

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