Enhanced oxygen reduction reaction performance of nitrogen-doped carbon nanocages

Microwave plasma chemical vapor deposition (MPCVD) technique was successfully applied to fabricate Nitrogen-doped carbon nanocages (NCNCs) with doping content of 2.94 at.%. The NCNCs treated by HNO 3 were characterized by TEM, XPS and Raman technique respectively. The rotating disk electrode voltamm...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2019-04, Vol.30 (7), p.6608-6616
Main Authors: Wang, Shenggao, Wang, Xujie, Deng, Quanrong, Mao, Yangwu, Wang, Geming
Format: Article
Language:English
Subjects:
Carbon
Catalysis
Catalysts
Characterization and Evaluation of Materials
Chemical vapor deposition
Chemistry and Materials Science
Crossovers
Electrodes
Electrolytes
Graphite
High temperature
Materials Science
Microwave plasmas
Morphology
Nanomaterials
Nitrogen
Optical and Electronic Materials
Organic chemistry
Oxygen reduction reactions
Rotating disks
Voltammetry
X ray photoelectron spectroscopy
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Summary:Microwave plasma chemical vapor deposition (MPCVD) technique was successfully applied to fabricate Nitrogen-doped carbon nanocages (NCNCs) with doping content of 2.94 at.%. The NCNCs treated by HNO 3 were characterized by TEM, XPS and Raman technique respectively. The rotating disk electrode voltammetry was used to estimate the oxygen reduction reaction (ORR) performance of nanocages in O 2 -saturated 0.1 M KOH electrolyte. Our results show that NCNCs possess not only electrocatalytic property comparable to those of commercial Pt/C catalyst, but also higher resistance to methanol crossover and better long-term stability than those of Pt/C. Therefore, NCNCs can be regarded as a very prominent alternative for Pt catalyst in ORR area.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-019-00968-z