Dual-atom catalysts for oxygen electrocatalysis. (15th December 2022)

• Record Type: Journal Article
• Authors: Wang, Juan; Zhao, Chang-Xin; Liu, Jia-Ning; Song, Yun-Wei; Huang, Jia-Qi; Li, Bo-Quan
• Is Part Of: Nano energy. Volume 104(2022)Part A
• Publication Date: 2022-12-15
• Subjects: Dual-atom catalysts -- Electrocatalysis -- Oxygen reduction reaction -- Oxygen evolution reaction; Nanoscience -- Periodicals; Nanotechnology -- Periodicals; Nanostructured materials -- Periodicals; Power resources -- Technological innovations -- Periodicals; Nanoscience; Nanostructured materials; Nanotechnology; Power resources -- Technological innovations; Periodicals; 621.042
• DOI: 10.1016/j.nanoen.2022.107927
• Languages: English
• ISSNs: 2211-2855

Abstract

Abstract: Oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are involved in various electrochemical devices but are severely sluggish in kinetics. Dual-atom catalysts demonstrate unique advantages in terms of high intrinsic electrocatalytic activity, maximum atomic efficiency, high chemical diversity, and positive synergy between the dual atoms. As a result, dual-atom catalysts have attracted wide-spread attention as advanced ORR and OER electrocatalysts. This review systematically summarizes the current advances of dual-atom catalysts for ORR and OER electrocatalysis. The intrinsic advantages of dual-atom catalysts are first discussed following three proposed mechanisms focusing on the electronic structure of active sites. The structure–activity relationship is comprehensively discussed based on theoretical simulations and experimental results to afford a methodology for rational structural design. Following that, the current synthesis methods and a transverse performance comparison are presented. Finally, several perspectives are highlighted for propelling the development of advanced dual-atom catalysts for ORR and OER electrocatalysis. Graphical Abstract: This review highlights the recent advances of dual-atom catalysts for oxygen reduction and evolution electrocatalysis. The intrinsic advantages and the structure–activity relationship are discussed focusing on the electronic structure of the active sites. The current synthesis methods and a transverse performance comparison are presented. ga1 Highlights: The advantages of dual-atom catalysts for oxygen electrocatalysis are summarized regarding the active site structure. The activity origin of dual-atom catalysts for oxygen electrocatalysis is analysed based on the electronic structure. The structure–activity relationship of dual-atom catalysts is thoroughly discussed to guide further exploration. Future trends and challenges for the development of advanced dual-atom catalysts are highlighted.