Atomic regulation of metal–organic framework derived carbon-based single-atom catalysts for the electrochemical CO2 reduction reaction. Issue 41 (14th October 2021)

• Record Type: Journal Article
• Authors: Zhou, Danni; Li, Xinyuan; Shang, Huishan; Qin, Fengjuan; Chen, Wenxing
• Is Part Of: Journal of materials chemistry. Volume 9:Issue 41(2021)
• Page Start: 23382
• Page End: 23418
• Publication Date: 2021-10-14
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/d1ta06915b
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : This review summarizes typical preparation strategies of MOF-derived SACs, focusing on the effect of atomic interface regulation on the electrocatalytic performance of CO2 reduction, and the latest progress with representative examples. Abstract : Metal–organic framework (MOF) derived single-atom catalysts (SACs) feature unique active sites and adjustable topological structures, exhibiting high electrocatalytic performance in carbon dioxide reduction reactions (CO2 RR). By modulating elements and atomic structures of MOF-derived SACs, the reaction pathway of CO2 RR can be precisely regulated with designed conversion on CO, formate, methanol, methane, ethanol, acetone and other substances. In this review, the latest advances in MOF-derived SACs for CO2 RR are comprehensively discussed. Main fabrication strategies of MOF-derived SACs, especially metal node strategy, coordination capture strategy and space restriction strategy, are introduced. Further regulations of the coordination environment of central atoms, including symmetrical M–N4 atomic interfaces, asymmetrical M–N x atomic interfaces and hetero-atom doped atomic interfaces as well as the influence on catalytic performances are systematically discussed. For deep exploration of the mechanism of catalytic activity, new characterization techniques on SACs are illustrated, with emphasis on identifying the catalytic sites, geometrical structures and their dynamic behavior. Based on this, we finally present recent convincing studies of MOF-derived SACs on CO2 RR categorized by the catalyzed products (C1 species and C2+ species). We hope this review will provide new insights on future research of SACs and CO2 RR.