期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 1, 期 39, 页码 12074-12081出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta12493b
关键词
-
资金
- National Natural Science Foundation of China [21236003, 21206042, 20925621, 21176083]
- Basic Research Program of Shanghai [13NM1400700, 13NM1400701]
- Fundamental Research Funds for the Central Universities
- Shanghai Leading Academic Discipline Project [B502]
Three-dimensional (3D) hierarchical porous Co-containing N-doped carbon materials (HP-Co-CNs) have been successfully prepared for the first time by using cyanamide as a nitrogen source and poly(vinyl alcohol) (PVA) hydrogel-based composites as in situ templates. Remarkably, the resulting HP-Co-CNs possess controllable nitrogen content, high surface area, hierarchical interconnected macro-/mesoporous structure, and a certain amount of Co-N-x moieties which could act as active sites in the oxygen reduction reaction (ORR). In studying the application of HP-Co-CNs for the ORR, the HP-Co-CNs showed excellent electrocatalytic performance for a four-electron ORR, and longer-term stability and higher methanol tolerance then the commercial Pt/C electrocatalyst in alkaline medium, highlighting the importance of macropores for diffusion and a sufficient amount of active sites related to high specific surface area for improving the ORR performance.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据