Non-carbon-supported single-atom site catalysts for electrocatalysis. Issue 5 (9th April 2021)

• Record Type: Journal Article
• Authors: Zheng, Xiaobo; Li, Peng; Dou, Shixue; Sun, Wenping; Pan, Hongge; Wang, Dingsheng; Li, Yadong
• Is Part Of: Energy & environmental science. Volume 14:Issue 5(2021)
• Page Start: 2809
• Page End: 2858
• Publication Date: 2021-04-09
• Subjects: Energy conversion -- Periodicals; Fuel switching -- Periodicals; Environmental sciences -- Periodicals; Environmental chemistry -- Periodicals; 333.79
• DOI: 10.1039/d1ee00248a
• Languages: English
• ISSNs: 1754-5692

Abstract

Abstract : Non-carbon supported SACs were classified into eight categories based on the nature of their substrates for the first time, and their corresponding anchoring and stabilization mechanisms have been systematically summarized and discussed. Abstract : Single-atom site catalysts (SACs) have received considerable attention for electrocatalytic applications, owing to their maximum atom-utilization efficiency, well-identified active centers, and tunable supports. Carbon-supported SACs have been widely applied in electrocatalysis, and their progress has been intensively reviewed. Non-carbon-supported SACs have drawn ever-increasing attention recently, and are emerging as an indispensable class of SACs. This review comprehensively summarizes the recent exciting progress on the non-carbon-supported SACs and their applications in electrocatalytic reactions. Eight types of non-carbon-supported SACs are firstly categorized to show their diversity. Subsequently, the anchoring and stabilization mechanisms for each type of non-carbon-supported SACs are systematically unraveled. Furthermore, the advanced characterization techniques for identifying and monitoring the atomic structure of SACs are highlighted. Thereafter, the advances of non-carbon-supported SACs for electrochemical energy conversion are discussed, which emphasizes their applications in the hydrogen evolution reaction, the oxygen evolution reaction, the oxygen reduction reaction, the N2 reduction reaction, and the CO2 reduction reaction. Finally, perspective insights into the current challenges and the future prospects for non-carbon-supported SACs are provided.