Carbon‐Supported Divacancy‐Anchored Platinum Single‐Atom Electrocatalysts with Superhigh Pt Utilization for the Oxygen Reduction Reaction | Zendy

Liu Jing | Zendy; Jiao Menggai | Zendy; Mei Bingbao | Zendy; Tong Yuxin | Zendy; Li Yuping | Zendy; Ruan Mingbo | Zendy; Song Ping | Zendy; Sun Gongquan | Zendy; Jiang Luhua | Zendy; Wang Ying | Zendy; Jiang Zheng | Zendy; Gu Lin | Zendy; Zhou Zhen | Zendy; Xu Weilin | Zendy

Premium

Carbon‐Supported Divacancy‐Anchored Platinum Single‐Atom Electrocatalysts with Superhigh Pt Utilization for the Oxygen Reduction Reaction

Author(s) -

Liu Jing,

Jiao Menggai,

Mei Bingbao,

Tong Yuxin,

Li Yuping,

Ruan Mingbo,

Song Ping,

Sun Gongquan,

Jiang Luhua,

Wang Ying,

Jiang Zheng,

Gu Lin,

Zhou Zhen,

Xu Weilin

Publication year - 2019

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.201812423

Subject(s) - platinum , carbon fibers , density functional theory , materials science , catalysis , oxygen reduction reaction , atom (system on chip) , cathode , carbon atom , chemistry , inorganic chemistry , electrochemistry , computational chemistry , electrode , computer science , organic chemistry , composite number , composite material , alkyl , embedded system

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.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research