Co/Co9S8/nitrogen-doping hollow carbon spheres nanocomposite as an efficient and durable electrocatalyst for oxygen reduction reaction

被引：6

作者：

Jia, Xiaodong ^{[1
]}

Cui, Jie ^{[1
]}

Fang, Hua ^{[1
]}

Wang, Lixia ^{[1
]}

Li, Xiaofeng ^{[1
]}

Song, Yanhua ^{[1
]}

Zhang, Linsen ^{[1
]}

Guo, Huishi ^{[1
]}

机构：

[1] Zhengzhou Univ Light Ind, Henan Prov Key Lab Surface & Interface Sci, 136 Sci Ave, Zhengzhou 450001, Peoples R China

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2020年 / 122卷

基金：

美国国家科学基金会;

关键词：

Co/Co9S8/nitrogen-doped hollow carbon spheres nanocomposite; Electrocatalysis; Synergistic effect; Oxygen reduction reaction; BIFUNCTIONAL ELECTROCATALYSTS; ELECTROCHEMICAL PERFORMANCE; FACILE FABRICATION; POROUS CARBON; NITROGEN; CATALYSTS; SHEETS; OXIDE; FILM; ORR;

D O I：

10.1016/j.inoche.2020.108284

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The design of efficient, low-cost, and durable catalysts for oxygen reduction reaction (ORR) is pivotal to fuel cells. Herein, we developed a facile strategy to fabricate a Co/Co9S8/nitrogen-doped hollow carbon spheres (NHCS) nanocomposite via calcining 3-Aminobenzenesulfonic anions within the interlamination of CoAl-layered double hydroxides (CoAl-LDH) at 900 degrees C in N-2 atmosphere. The Co/Co9S8/NHCS nanocomposite with numerous carbon nanosheets possesses large specific surface area and pore volume, and Co/Co9S8 nanoparticles were embedded within the carbon nanosheets. The Co/Co9S8/NHCS nanocomposite exhibits superexcellent ORR activities with an E (onset) of 0.95 V, an E (1/2) of 0.87 V and a J(1600) rpm of 5.82 mA cm(2) at 0.70 V vs. RHE. Moreover, the Co/Co9S8/NHCS nanocomposite displays prominent methanol tolerance and excellent stability in 0.1 M KOH. This work provides an efficient approach for developing non-precious metal ORR catalysts.

引用

页数：8

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