In situ construction of Co/Co3O4 with N-doped porous carbon as a bifunctional electrocatalyst for oxygen reduction and oxygen evolution reactions

被引：44

作者：

Peng, Huifen ^{[1
,2
]}

Zhang, Wulin ^{[1
,2
]}

Song, Yan ^{[1
,2
]}

Yin, Fuxing ^{[1
,2
]}

Zhang, Chengwei ^{[1
,2
]}

Zhang, Lei ^{[1
,2
]}

机构：

[1] Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin 300130, Peoples R China

[2] Hebei Univ Technol, Tianjin Key Lab Mat Laminating Fabricat & Interfa, Tianjin 300130, Peoples R China

来源：

CATALYSIS TODAY | 2020年 / 355卷

基金：

中国国家自然科学基金;

关键词：

Co/Co3O4; nanoparticles; N-doped carbon; Hierarchically porous carbon; Oxygen reduction reaction; Oxygen evolution reaction; METAL-ORGANIC FRAMEWORK; CO3O4; NANOCRYSTALS; NANOWIRE ARRAYS; OXIDES; CO; NANOPARTICLES; GRAPHENE; CATALYST; PERFORMANCE; STEEL;

D O I：

10.1016/j.cattod.2019.05.003

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The development of low-cost electrocatalyst with high efficiency is crucial in energy conversion and storage. The Co/Co3O4 nanoparticles are encapsulated into N-doped porous carbon (Co/Co3O4/NPC) by one-step dual-template method. Co/Co3O4/NPC possesses hierarchically porous structure consisting of 3D ordered macroporous carbon frameworks and mesopores with large BET surface areas, and Co/Co3O4 nanoparticles are uniformly enclosed in the carbon walls. Co/Co3O4/NPC exhibits better durability in alkaline solution for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) compared to commercial PVC and Ir/C. Such superior catalytic performance could be ascribed to the synergistic effects between embedded Co/Co3O4 nanoparticles and the unique hierarchically porous structure.

引用

页码：286 / 294

页数：9

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