Metallic single-atoms confined in carbon nanomaterials for the electrocatalysis of oxygen reduction, oxygen evolution, and hydrogen evolution reactions

Author(s)

Khalid, Mohd ^[1] ; Bhardwaj, Prerna A. ^[2] ; Honorato, Ana M. B. ^{[3, 4]} ; Varela, Hamilton ^[1]

Affiliation

^[1] Univ Sao Paulo, Inst Chem Sao Carlos, POB 780, BR-13560970 Sao Carlos, SP - Brazil

^[2] Univ Hohenheim, Inst Chem, D-70599 Stuttgart - Germany

^[3] Case Western Reserve Univ, Dept Macromol Sci & Engn, 10900 Euclid Ave, Cleveland, OH 44106 - USA

^[4] Univ Fed Sao Carlos, Dept Mat Engn, Washington Luiz Rd Km 235, BR-13565905 Sao Carlos, SP - Brazil

• Document type: Review article
• Source: CATALYSIS SCIENCE & TECHNOLOGY; v. 10, n. 19, p. 6420-6448, OCT 7 2020.
• Web of Science Citations: 8

Abstract

Carbon nanomaterials confined with metallic single-atoms have shown great potential in electrocatalysis because of their unique physicochemical properties such as high-efficiency, high mass activity and maximum atom-utilization for reactions involved in electrochemical energy conversion and storage, such as oxygen reduction, oxygen evolution, and hydrogen evolution reactions. In principle, metal single-atoms dispersed on appropriate carbon support ideally possess tunable coordination environment and unique electronic properties that result in excellent activity and selectivity toward catalytic reactions as compared to nanoparticles/or bulk form of noble and non-noble metals. This article reviews the recent advances of metal single-atom confined carbon nanomaterials, following their rational design strategies and correlation between metal-support combinations for the electrocatalysis of oxygen reduction, oxygen evolution, and hydrogen evolution reactions, including bifunctional activities for metal-air batteries and water electrolysis. A perspective on emerging fields of single-atom catalysis is also provided in this study. (AU)

• FAPESP's process: 13/16930-7 - Electrocatalysis V: electrocatalytic processes of chemical and electrical energy interconversion
• Grantee: Edson Antonio Ticianelli
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 17/00433-5 - Design and synthesis of multifunctional metal-free electrocatalyst onto carbon fiber yarns for oxygen reduction, and oxygen and hydrogen evolution reactions
• Grantee: Mohmmad Khalid
• Support Opportunities: Scholarships in Brazil - Post-Doctoral