标题
作者
作者:Liu, BC (Liu, Baichen)[1 ]; Dai, WL (Dai, Wanlin)[1 ]; Liang, ZX (Liang, ZhenXing)[1 ]; Ye, JS (Ye, Jianshan)[1 ]; Ouyang, LZ (Ouyang, Liuzhang)[2,3 ]
期刊信息
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文献类型:Article
摘要
The non-precious metal catalysts usually have low nitrogen content, resulting in poor oxygen reduction reaction (ORR) performance. Herein we demonstrated a strategy to synthesize the Fe/N/C carbon nanotubes (Fe-N-BCNTs) with high nitrogen content. The strategy included pyrolysis of ferric chloride and dicyandiamide, polymerization of pyrrole onto intermediate product's surface, and following by calcination in N-2 atmosphere. Electrochemical test results show that the catalyst exhibits highly efficient ORR activity with an onset potential of 0.995 V (us reversible hydrogen electrode) in 0.1 M KOH solution, 30 mV more positive than that of 20 wt. % Pt/C catalyst. The excellent ORR performances could be attributed to the more nitrogen functional groups in Fe-N-BCNTs-PPy-800 catalyst, which is revealed by Raman and XPS. Moreover, the prepared catalyst exhibits better methanol tolerance and higher stability in comparison to commercial Pt/C catalyst. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
关键词
作者关键词:Fuel cells; Oxygen reduction reaction; Non-precious metal catalysts; Carbon nanotubes; Polypyrrole
作者信息
通讯作者地址:Ye, JS (通讯作者)
 | South China Univ Technol, Coll Chem & Chem Engn, Guangzhou 510641, Guangdong, Peoples R China. |
| South China Univ Technol, Sch Mat Sci & Engn, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China. |
地址:
电子邮件地址:jsye@scut.edu.cn; meouyang@scut.edu.cn
出版商
类别分类
研究方向:Chemistry; Electrochemistry; Energy & Fuels
Web of Science 类别:Chemistry, Physical; Electrochemistry; Energy & Fuels