2018/12/06 by Jing Liu, Menggai Jiao, Bingbao Mei +11 · 95 citations
Chemistry · Energy · Engineering · #Advanced battery technologies research #Carbon fibers #Catalysis #Chemistry #Computational chemistry #Density functional theory #Electrocatalysts for Energy Conversion #Electrochemistry #Electrode #Fuel Cells and Related Materials #Inorganic chemistry #Materials science #Organic chemistry #Oxygen reduction reaction #Physical chemistry #Platinum
paper · doi:10.1002/ange.201812423
published in Angewandte Chemie 131(4), 1175-1179 (Wiley)
openalex publication_date 2018/12/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
Abstract Maximizing the platinum utilization in electrocatalysts toward oxygen reduction reaction (ORR) is very desirable for large‐scale sustainable application of Pt in energy systems. A cost‐effective carbon‐supported carbon‐defect‐anchored platinum single‐atom electrocatalysts (Pt 1 /C) with remarkable ORR performance is reported. An acidic H 2 /O 2 single cell with Pt 1 /C as cathode delivers a maximum power density of 520 mW cm −2 at 80 °C, corresponding to a superhigh platinum utilization of 0.09 g Pt kW −1 . Further physical characterization and density functional theory computations reveal that single Pt atoms anchored stably by four carbon atoms in carbon divacancies (Pt‐C 4 ) are the main active centers for the observed high ORR performance.