Hierarchical Porous Carbon Sponge with High Capacitance and High Catalytic Activity for the Oxygen Reduction Reaction

被引：1

作者：

Cui, Xuejing ^{[1
]}

Li, Xiaoke ^{[1
]}

Jiang, Luhua ^{[1
]}

机构：

[1] Qingdao Univ Sci & Technol, Coll Mat Sci & Engn, Electrocatalysis & Nanomat Lab, Qingdao 266042, Shandong, Peoples R China

来源：

ENERGY & FUELS | 2022年 / 36卷 / 15期

关键词：

ELECTROCATALYST; GRAPHENE; EFFICIENT; MEMBRANE; CATHODE; FE;

D O I：

10.1021/acs.energyfuels.2c02207

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Herein, a unique carbon sponge FeNC@GA-MF with a hierarchical porous structure was prepared by a multi-step self-assembly strategy, with a high surface area of 1184.8 m2 g-1, a pseudocapacitance of 133.5 F g-1, and also superior activity for the oxygen reduction reaction (E1/2 = 0.866 VRHE). The Zn-air battery fabricated with the FeNC@GA-MF cathode delivers a peak power density of 156 mW cm-2 and a satisfied stability, outperforming the Pt/C cathode, benefiting from the high intrinsic activity and large surface area of the unique hierarchical porous structure. This work provides an effective strategy to fabricate self-supporting electrodes for fuel cells and supercapacitors.

引用

页码：8562 / 8568

页数：7

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