Preparation of nitrogen-doped carbon nanotube arrays and their catalysis towards cathodic oxygen reduction in acidic and alkaline media

被引：172
作者：
Mo, Zaiyong [1 ,2 ,3 ,4 ]
Liao, Shijun [1 ,2 ,3 ]
Zheng, Yuying [1 ,2 ,3 ]
Fu, Zhiyong [1 ,2 ,3 ]
机构：
[1] S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510641, Peoples R China
[2] Minist Educ, Key Lab Fuel Cell Technol Guangdong Prov, Guangzhou, Guangdong, Peoples R China
[3] Minist Educ, Key Lab Enhanced Heat Transfer & Energy Conservat, Beijing, Peoples R China
[4] Yulin Normal Univ, Sch Chem & Mat, Yulin 537000, Peoples R China
来源：
CARBON | 2012年 / 50卷 / 07期
关键词：
HIGH ELECTROCATALYTIC ACTIVITY; ELECTROLYTE FUEL-CELLS; CNX NANOTUBES; IRON; GROWTH; PHASE;
D O I：
10.1016/j.carbon.2012.02.021
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Nitrogen-doped carbon nanotube (N-CNT) arrays were prepared by chemical vapor deposition, using ferrocene as the catalyst precursor and imidazole as the carbon and nitrogen precursor. For the reduction of oxygen, the N-CNTs showed excellent electrocatalytic activity in both acidic and alkaline media. The N-CNTs were characterized by scanning and transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and elemental analysis. The samples had a high nitrogen content (8.54 at.%) and a bamboo-like structure, and their activity varied according to the amount of pyridinic nitrogen they contained. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2620 / 2627
页数：8
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