Recent advances in non-noble metal-based bifunctional electrocatalysts for overall seawater splitting

作者：Zhang, Hao; Luo, Yang; Chu, Paul K.; Liu, Qian; Liu, Xijun^*; Zhang, Shusheng; Luo, Jun; Wang, Xinzhong^*; Hu, Guangzhi^*

来源：Journal of Alloys and Compounds, 2022, 922: 166113.

DOI：10.1016/j.jallcom.2022.166113

• Non-noblemetals
• Bifunctionalelectrocatalysis
• Watersplitting
• Seawater

Since seawater is one of the most abundant resources on earth, seawater electrolysis is becoming in-creasingly attractive for clean energy/hydrogen production. Although significant progress has been made recently, it is still challenging to obtain bifunctional electrocatalysts with high catalytic activity and durability suitable for seawater electrolysis because of the scarcity of precious metals and inadequate state-of-the-art materials for the overall reaction. The development of high-performance bifunctional electrocatalysts is crucial to the commercialization of overall seawater electrolysis and in this review, the mechanism and challenges of seawater electrolysis are introduced. Optimization strategies for different types of non-noble-metal-based electrocatalysts including structural regulation, interface regulation, doping regulation, in situ assembly, alloying, and amorphization are summarized to elucidate the re-lationship among composition, structure, and properties. Finally, the challenge and prospective for fu-ture development of non-noble-metal-based bifunctional catalysts are discussed. This paper aims at providing guidance and insights into the rational design of highly efficient catalytic materials for prac-tical seawater splitting.

• 单位
  郑州大学; 深圳信息职业技术学院; 云南大学; 广西大学