One-pot synthesis of two-dimensional porphyrin-based polymer and derived N-doped porous carbon as efficient oxygen reduction catalysts

Micro & nano letters

article

Tian-Lu Cui¹  Jun-Ying He¹  Jian-Jun Chen² 

[1] Department of Material and Chemical Engineering, Zhengzhou University of Light Industry;Institute of Environmental and Catalytic Engineering, School of Chemistry and Chemical Engineering, Zhengzhou Normal University

关键词: diffusion;    nitrogen;    electrochemistry;    nanoporous materials;    current density;    nanofabrication;    reduction (chemical);    charge exchange;    carbon;    polymers;    catalysts;    iron;    porosity;    CN;    Fe;    two-dimensional porphyrin-based polymer;    N-doped porous carbon;    efficient oxygen reduction catalysts;    two-dimensional porous polymer;    porphyrin-based porous carbon nanosheets;    specific surface area;    hierarchical porous structure;    electrochemical performance;    oxygen reduction reaction;    diffusion limiting current density;    one-pot synthesis;    condensation;    alkaline conditions;    half-wave potential;   

DOI  :  10.1049/mnl.2019.0407

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

This work describes the synthesis and functions of a two-dimensional porous polymer based on porphyrin. Upon condensation, coordination and treatment with high temperature, porphyrin-based porous carbon nanosheets were obtained with the high specific surface area of 466 m 2 g −1 . Benefiting from its high surface area, co-doping with iron/nitrogen and hierarchical porous structure, the optimised example exhibits excellent electrochemical performance for the oxygen reduction reaction under alkaline conditions with a low half-wave potential of 0.73 V (lower than 0.78 V for Pt/C), a dominant four-electron transfer mechanism ( n = 3.97 at 0.64 V) and a high diffusion limiting current density of 5.27 mA cm −2 .

【 授权许可】

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