Issue 14, 2022

Boosting the oxygen evolution reaction performance through defect and lattice distortion engineering

Abstract

Developing efficient, stable, and inexpensive electrocatalysts for the oxygen evolution reaction (OER) is significant for the development and utilization of clean energy. Defects in electrocatalysts strongly impact their chemical properties and can dramatically enhance the electrocatalytic performance. However, the rational tuning of defects and lattice distortions in electrocatalysts for efficient and stable electrolytic activity in alkaline media remains a challenge. Here, we highlighted defect- and lattice distortion-enriched 3D hierarchical Co9S8/Ni3S2 nanowire arrays supported on Ni foam to expose a greater number of active sites for an efficient OER. The obtained Ni foam supported Co9S8/Ni3S2 nanowire arrays exhibit an overpotential of 223 mV at 10 mA cmāˆ’2 and a Tafel slope of 79 mV decāˆ’1, which is comparable to and even better than the performance of the best OER electrocatalyst under alkaline conditions. This work also offers an approach for designing other advanced OER electrocatalysts for sustainable energy technology and devices.

Graphical abstract: Boosting the oxygen evolution reaction performance through defect and lattice distortion engineering

Supplementary files

Article information

Article type
Paper
Submitted
07 Jan 2022
Accepted
21 Feb 2022
First published
21 Feb 2022

New J. Chem., 2022,46, 6424-6432

Boosting the oxygen evolution reaction performance through defect and lattice distortion engineering

Z. Wu, J. Wang, H. Li, L. Cao and B. Dong, New J. Chem., 2022, 46, 6424 DOI: 10.1039/D2NJ00104G

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