Nitrogen-doped carbon nanotubes as cathode for lithium-air batteries

被引：256

作者：

Li, Yongliang ^{[1
]}

Wang, Jiajun ^{[1
]}

Li, Xifei ^{[1
]}

Liu, Jian ^{[1
]}

Geng, Dongsheng ^{[1
]}

Yang, Jinli ^{[1
]}

Li, Ruying ^{[1
]}

Sun, Xueliang ^{[1
]}

机构：

[1] Univ Western Ontario, Dept Mech & Mat Engn, London, ON N6A 5B9, Canada

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2011年 / 13卷 / 07期

基金：

加拿大自然科学与工程研究理事会; 加拿大创新基金会;

关键词：

Lithium-air batteries; Nitrogen-doped carbon nanotubes; Electrocatalytic activity; DISCHARGE; CATALYSTS;

D O I：

10.1016/j.elecom.2011.04.004

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nitrogen-doped carbon nanotubes (N-CNTs) were synthesized by a floating catalyst chemical vapor deposition (FCCVD) method. Various techniques including X-ray photoelectron spectroscopy, field emission scanning electron microscopy, transmission electron microscopy. X-ray diffraction, and Raman spectroscopy revealed the morphology and structure of CNTs and N-CNTs as well confirmed the existence of incorporated nitrogen (10.2 at.%) in N-CNTs. N-CNTs were investigated as cathode material for lithium-air batteries and exhibited a specific discharge capacity of 866 mAhg(-1), which was about 1.5 times as that of CNTs. Our results indicated that the N-CNTs electrode showed high electrocatalytic activities for the cathode reaction thus improving the lithium-air battery performance. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：668 / 672

页数：5

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