Toward the rational engineering of Mo-based materials for alkaline oxygen evolution reaction

• Published in: Journal of energy chemistry Vol. 106; pp. 751 - 767
• Main Authors: Liu, Qingcui, Cheng, Wenhua, Huang, Yudai, Zhou, Huan, Ding, Juan, Meng, Weiwei, Tan, Zhouliang
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.07.2025
• Subjects: Alkaline media; Electrocatalysis; Mo-based materials; Oxygen evolution reaction; Structure-performance relationship; Electrocatalysis; Oxygen evolution reaction; Structure-performance relationship; Alkaline media; Mo-based materials
• ISSN: 2095-4956
• DOI: 10.1016/j.jechem.2025.02.064

This review introduces the role of Mo-based materials as catalysts, co-catalysts, and carriers and summarizes design strategies of various Mo-based materials for OER applications in alkaline electrolytes. [Display omitted] A thorough understanding of the oxygen evolution reaction (OER) in Mo-based materials is crucial for the advancement of water-splitting technologies. However, the identification of the active phase in Mo-based systems remains a subject of debate, largely due to the dissolution of molybdenum oxides in alkaline electrolytes. In this review, we provide a comprehensive overview of recent advances in the application of Mo-based materials for OER in alkaline media, with an emphasis on their diverse roles in catalysis. Various design strategies employed to optimize Mo-based materials are discussed, focusing on how these approaches influence their physicochemical properties and the specific effects of different design perspectives on their OER performance. Additionally, the structure-performance relationship underlying these materials is explored, offering insights into how structural modifications impact catalytic efficiency. Lastly, key challenges for Mo-based materials in OER applications are provided, and future research directions for further improving the efficacy of sustainable water-splitting technologies in alkaline environments are proposed.