Competing Effect of Co3+Reducibility and Oxygen-Deficient Defects Toward High Oxygen Evolution Activity in Co3O4Systems in Alkaline Medium

Alex, Chandraraj; Ch. Sarma, Saurav; C. Peter, Sebastian; S. John, Neena

doi:10.1021/acsaem.0c00297

Public

Competing Effect of Co3+Reducibility and Oxygen-Deficient Defects Toward High Oxygen Evolution Activity in Co3O4Systems in Alkaline Medium

Published in ACS Applied Energy Materials • May 13, 2020

Authors:

Chandraraj Alex

Saurav Ch. Sarma

Sebastian C. Peter

Abstract

In Co3O4 systems, the oxygen vacancy is reported to improve the oxygen evolution reaction (OER) activity because of higher Co2+/Co3+ surface ratio. In situ studies have revealed Co3+—site reducibility as the key factor for OER activity of cobalt oxide-based systems. In this context, we have synthesi...

Subject

Tafel equation

Oxygen evolution

Overpotential

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