Issue 49, 2020, Issue in Progress

Efficient electrocatalyst of α-Fe2O3 nanorings for oxygen evolution reaction in acidic conditions

Abstract

Large-scale application of sustainable energy devices urgently requires cost-effective electrocatalysts to overcome the sluggish kinetics related to the oxygen evolution reaction (OER) under acidic conditions. Here, we first report the highly efficient electrocatalytic characteristics of α-Fe2O3 nanorings (NRs), which exhibits prominent OER electrocatalytic activity with lower overpotential of 1.43 V at 10 mA cm−2 and great stability in 1 M HCl, surpassing the start-of-the art Ir/C electrocatalyst. The significantly optimized OER activity of the α-Fe2O3 NRs mainly attributes to the synergistic effect of the excellent electrical conductivity and a large effective active surface because of their unique nanoring structure, disordered surface, and the dynamic stability of α-Fe2O3 NRs in acidic conditions.

Graphical abstract: Efficient electrocatalyst of α-Fe2O3 nanorings for oxygen evolution reaction in acidic conditions

Supplementary files

Article information

Article type
Paper
Submitted
13 May 2020
Accepted
30 Jul 2020
First published
06 Aug 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 29077-29081

Efficient electrocatalyst of α-Fe2O3 nanorings for oxygen evolution reaction in acidic conditions

X. Liang, J. Qian, Y. Liu, Z. Zhang and D. Gao, RSC Adv., 2020, 10, 29077 DOI: 10.1039/D0RA04262E

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