期刊
CHEMISTRY LETTERS
卷 42, 期 4, 页码 413-415出版社
CHEMICAL SOC JAPAN
DOI: 10.1246/cl.121290
关键词
-
资金
- NSFC [50972033, 51102064]
- Shenzhen Bureau of Science, Technology and Innovation Commission [JC200903120176A, JC201005260171A, JCYJ20120613134244467, CXZZ20120613141143842]
- [HIT.NSRIF.2010130]
Polyacrylonitrile (PAN)-based nitrogen-doped carbon nanofibers (NCNFs) were fabricated by electrospinning. Their electrocatalytic activity for oxygen reduction reactions (ORRs) in 0.5 M H2SO4 solution was greatly enhanced by surface modification by oxidation in a concentrated H2SO4/HNO3 mixture and then NH3 etching at high temperature. The modification treatment resulted in a unique porous structure, fiber diameter reduction, more exposed edge planes, a higher proportion of pyridinic-N, and thus enhancement of ORR activity. The modified NCNF electrocatalysts are highly promising for ORRs in acidic electrolytes.
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