Unconventional oxygen reduction reaction mechanism and scaling relation on single-atom catalysts

• Main Authors: Zhong, Lixiang, Li, Shuzhou
• Other Authors: School of Materials Science and Engineering
• Format: Article
• Language: English
• Published: 2022
• Subjects: Engineering::Materials; Density Functional Calculations; Electrocatalysis
• Online Access: https://hdl.handle.net/10356/154906
• Institution: Nanyang Technological University

The electrochemical oxygen reduction reaction (ORR) mechanism was generally considered to be O₂→ OOH∗→ O∗→ OH∗→ H₂O (O∗ mechanism). This O∗ mechanism predicted reasonable ORR half-wave potential (E1/2) of Co/N/C but abnormally underestimated the one of Fe/N/C. Herein, we highlight an unconventional...