Porous nitrogen-doped carbon nanofibers as highly efficient metal-free electrocatalyst for oxygen reduction reaction

被引：30

作者：

Yin, Jing ^{[1
]}

Qiu, Yejun ^{[1
]}

Yu, Jie ^{[1
]}

机构：

[1] Harbin Inst Technol, Shenzhen Grad Sch, Dept Mat Sci & Engn, Shenzhen Engn Lab Flexible Transparent Conduct Fi, Shenzhen, Peoples R China

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2013年 / 702卷

关键词：

Nitrogen-doped carbon; Porous material; Electrospinning; Oxygen reduction; POLYMER BLENDS; ELECTRODES; CATALYSTS; ARRAYS;

D O I：

10.1016/j.jelechem.2013.05.013

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Three kinds of polymer blend of poly(methyl methacrylate) (PMMA)/polyacrylonitrile (PAN), polyvinylpyrrolidone (PVP)/PAN and cellulose acetate (CA)/PAN were converted into nitrogen-doped carbon nanofibers (NCNFs) by electrospinning combined with acid oxidation and NH3 etching. The NCNFs showed excellent electrocatalytic performance for oxygen reduction reaction (ORR) in acid media, probably being attributed to the good hydrophilicity and wettability, porous fibrous structure, ultra thin diameter of less than 50 nm, more exposed edge planes of pyrolytic graphitic carbons, and high proportion of pyridinic and quaternary nitrogen. The developed NCNFs show great potential as metal-free electrocatalyst for ORR in acid environment. (C) 2013 Elsevier B.V. All rights reserved.

引用

收藏

页码：56 / 59

页数：4

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