Issue 42, 2023

A layered CoSeO3 pre-catalyst for electrocatalytic water oxidation

Abstract

In electrocatalytic water oxidation, the surface reconstruction of electrocatalysts is a common issue due to the applied anodic potential. The study of the fundamentals of catalyst structure transformation and the relationship between structure and performance is important. Herein, we designed two cobalt selenites (CoSeO3 and CoSeO3·2H2O) with different structures for comparative studies. The cross channels in layered CoSeO3 provide space for easy surface reconstruction. The reasons are defined by a series of electrochemical studies, indicating a larger ion diffusion coefficient, more surface contacting OH anions and faster charge transfer kinetics in CoSeO3. This work provided a paradigm for studying the influence of geometric structure on pre-catalyst reconstruction.

Graphical abstract: A layered CoSeO3 pre-catalyst for electrocatalytic water oxidation

Supplementary files

Article information

Article type
Paper
Submitted
28 شوال 1444
Accepted
13 محرم 1445
First published
22 محرم 1445

Dalton Trans., 2023,52, 15518-15523

A layered CoSeO3 pre-catalyst for electrocatalytic water oxidation

T. Wang, S. Yang, H. Zheng, W. Zhang and R. Cao, Dalton Trans., 2023, 52, 15518 DOI: 10.1039/D3DT01497E

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