Journal
CATALYSIS LETTERS
Volume 148, Issue 7, Pages 1815-1826Publisher
SPRINGER
DOI: 10.1007/s10562-018-2392-6
Keywords
Carbon nanotubes; Oxygen reduction; Non-precious metal catalyst; Electrospinning; Electrocatalysis; Composite catalyst
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Funding
- Estonian Ministry of Education and Research [IUT20-16, IUT2-24]
- Estonian Research Council (INDIGO project)
- EU through the European Regional Development Fund (Advanced materials and high-technology devices for energy recuperation systems) [TK141]
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For the first time, the oxygen reduction reaction (ORR) is studied on pyrolysed electrospun multi-walled carbon nanotube (MWCNT) and styrene-acrylonitrile (SAN) composite fibre catalysts in alkaline medium. Scanning electron microscopy images revealed that the prepared catalysts mainly consist of MWCNTs, while nitrogen doping of the catalysts is confirmed by X-ray photoelectron spectroscopy. This indicates that SAN can be used as a nitrogen precursor. The ORR studies carried out by rotating disc electrode (RDE) and rotating ring-disc electrode (RRDE) methods showed that the prepared catalysts were considerably more active towards the ORR than the pristine MWCNTs. [GRAPHICS] .
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