期刊
JOURNAL OF POWER SOURCES
卷 332, 期 -, 页码 129-138出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2016.09.069
关键词
Oxygen reduction; Electrocatalysis; Nitrogen doping; Carbon nanotubes; Non-precious metal catalyst; Alkaline direct methanol fuel cell
资金
- Estonian Ministry of Education and Research [IUT20-16, IUT02-25]
- Estonian Research Council [9323]
- Jane and Aatos Erkko foundation
- Academy of Finland [286266, 292554]
- EU through the European Regional Development Fund [TK141]
- Academy of Finland (AKA) [292554, 286266, 292554, 286266] Funding Source: Academy of Finland (AKA)
Non-precious metal catalysts for electrochemical oxygen reduction reaction are synthesised by pyrolysis of multi-walled carbon nanotubes in the presence of nitrogen and iron precursors. For the physicochemical characterisation of the catalysts transmission electron microscopy, scanning electron microscopy, X-ray photoelectron spectroscopy and X-ray diffraction are used. The electrocatalytic activity of the catalysts for oxygen reduction is studied in 0.1 M KOH solution using the rotating disk electrode method. The Fe-containing nitrogen-doped carbon nanotubes exhibit an enhanced electrocatalytic performance as compared to metal-free counterparts and their electrocatalytic activity is comparable to that of commercial Pt/C catalyst. Alkaline direct methanol fuel cell tests also show performance close to Pt/C. Thus, these materials can be considered as promising cathode catalysts for application in alkaline fuel cells. (C) 2016 Elsevier B.V. All rights reserved.
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