Vertically Aligned BCN Nanotubes as Efficient Metal-Free Electrocatalysts for the Oxygen Reduction Reaction: A Synergetic Effect by Co-Doping with Boron and Nitrogen

被引:697
作者
Wang, Shuangyin [1 ]
Iyyamperumal, Eswaramoorthi [1 ]
Roy, Ajit [2 ]
Xue, Yuhua [1 ]
Yu, Dingshan [1 ]
Dai, Liming [1 ]
机构
[1] Case Western Reserve Univ, Dept Macromol Sci & Engn, Cleveland, OH 44106 USA
[2] USAF, Thermal Sci & Mat Branch, Mat & Mfg Directorate, Res Lab, Dayton, OH 45433 USA
关键词
doping; electrochemistry; fuel cells; nanotubes; oxygen reduction; DOPED CARBON NANOTUBES; NITRIDE; GROWTH; ARRAYS; NANOPARTICLES; PROPERTY;
D O I
10.1002/anie.201105204
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A single-compound source of B, C, and N was used for the growth of vertically aligned BCN (VA-BCN) nanotubes (NTs). Owing to a synergetic effect of co-doping of C nanotubes (CNTs) with N and B, the VA-BCN NTs show significantly improved electrocatalytic activity (e.g., current density) for the oxygen reduction reaction compared to undoped VA-CNTs, CNTs doped with only B or N (VA-BCNT, VA-NCNT), and a commercial Pt/C electrocatalyst (see picture). Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:11756 / 11760
页数:5
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