Corrosion of monometallic iron- and nickel-based electrocatalysts for the alkaline oxygen evolution reaction : A review
| Autor: | Edouard Asselin, Hongxing Liang, Min Xu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: |
Materials science
Hydrogen Electrolysis of water Renewable Energy Sustainability and the Environment Pure metals Oxygen evolution Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Nickel based 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Catalysis Corrosion Chemical engineering chemistry 13. Climate action Electrical and Electronic Engineering Physical and Theoretical Chemistry 0210 nano-technology |
| DOI: | 10.14288/1.0402343 |
| Popis: | Many studies have investigated the potential to reduce the costs of producing renewable hydrogen via water electrolysis by using nonnoble Fe- and Ni-based catalysts. However, Fe- and Ni-based catalysts corrode in alkaline solutions, which makes it unclear whether the catalytic surface components are the pristine catalysts or their transformation products. Further, corrosion limits the catalyst service life. An understanding of this corrosion process is essential to accurately assess the active catalysts during the oxygen evolution reaction (OER) and to design novel catalysts. This paper reviews the corrosion of five types of monometallic Fe- and Ni-based OER catalysts: pure metals, oxides, (oxy)hydroxides, phosphides, and sulfides. A protocol for a rigorous corrosion characterization method is proposed to avoid misleading results during the design of novel catalysts. In light of the corrosion evolution of these catalysts, several key points are also suggested for consideration during the design of novel monometallic Fe- and Ni-based catalysts with high stability and electroconductivity. |
| Databáze: | OpenAIRE |
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