Cobalt/Carbon Nanocomposite as Oxygen Evolution Reaction Electrocatalyst

被引：9

作者：

Biegun, Marcin ^{[1
]}

Chen, Xuecheng ^{[1
]}

Mijowska, Ewa ^{[1
]}

机构：

[1] West Pomeranian Univ Technol, Nanomat Physicochem Dept, Fac Chem Technol & Engn, Al Piastow 45, PL-70311 Szczecin, Poland

来源：

CHEMELECTROCHEM | 2018年 / 5卷 / 18期

关键词：

Oxygen; Water splitting; Electrochemistry; Cobalt; Nanotechnology; WATER OXIDATION; ENHANCED ACTIVITY; ALKALINE MEDIA; EFFICIENT; ELECTRODE; ARRAY; NANOSHEETS; REDUCTION; CATALYST; NANOARRAY;

D O I：

10.1002/celc.201800355

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Electrocatalysts based on cobalt are promising catalytic materials for water electrolysis. In this work, We reported a catalyst composed of cobalt nanoparticles embeded in a carbon lattice through synthesis with a cationic polymer (PEI) and carbonization process at three temperatures (800, 900 and 1000 degrees C). The material obtained at 1000 degrees C showed the highest activity towards the oxygen evolution reaction (OER) in an alkaline medium (1M KOH). Moreover, the OER overpotential required to reach 10 mAcm(-2) of 296 mV, was lower than for the commercial RuO2 catalyst. Further, the material also exhibited very good stability in a long-term stability test at 10 mAcm(-2).

引用

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页码：2681 / 2685

页数：5

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