期刊
ELECTROCHIMICA ACTA
卷 160, 期 -, 页码 357-362出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2015.02.053
关键词
Oxygen reduction; Melamine; Polyaniline; Carbon nanotube; Electrocatalyst
In this work, an active and stable electrocatalyst for alkaline electrolyte oxygen reduction reaction was prepared by using single-wall carbon nanotubes with high specific surface area as the carbon source, and polyaniline and melamine as dual nitrogen sources via high-temperature pyrolysis process. Electrochemical experiments suggest that the metallic cobalt in the precursor can facilitate the oxygen reduction reaction to be carried out with an efficient 4-electron transfer pathway. Besides, the prepared catalyst has exhibited superior tolerance against methanol crossover effect and outstanding stability compared with commercial Pt-based catalysts in alkaline medium. (C) 2015 Elsevier Ltd. All rights reserved.
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