Prominent development of Ni-based oxygen-evolving electrocatalysts for water splitting
Abstract
Achieving a future sustainable carbon-neutral society requires the development of efficient systems for the chemical conversion of solar light energy to CO2-free fuels such as H2 as alternatives to fossil fuel. In this case, water splitting driven by solar energy is one of the most promising approaches for sustainable H2 production. However, the critical bottleneck in establishing efficient water splitting systems is the sluggish oxygen evolution reaction (OER) with high overpotentials (ηO2). Thus, the development of highly efficient OER electrocatalysts to minimize ηO2 and thus attain efficient water splitting is a challenging key task. Recently, there has been prominent progress in the development of efficient Ni-based electrocatalysts with extremely low ηO2. Herein, the aspects and mechanisms of state-of-the-art Ni-based OER electrocatalysts reported in the last three years from 2020 to 2023 are reviewed. Furthermore, we discuss the perspectives to develop efficient Ni-based OER electrocatalysts based on the comprehensive understanding of the catalysts introduced in this review.
- This article is part of the themed collection: Catalysis Science & Technology Recent Review Articles, 2024