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- Title
Nanocomposites of nitrogen-doped graphene and cobalt tungsten oxide as efficient electrode materials for application in electrochemical devices.
- Authors
Kumari, Nirmala; Singh, Ravindra N.
- Abstract
Nitrogen-doped graphene (N-GNS), cobalt tungsten oxide (CoWO4) and their binary composites have been synthesized and their structural and electrochemical and surface properties were investigated for application as electrode materials for oxygen reduction reaction (ORR) as well as super capacitors in 1 M KOH at 25 °C. Result shows that the composite, 40%CoWO4/N-GNS, has greatly enhanced capacitance as well as retention capacity, compared to its constituent compounds, N-GNS and CoWO4. The ORR activity and stability of the composite are also found to be much superior to N-GNS (or CoWO4) under similar conditions. The 40%CoWO4/N-GNS catalyst has also exhibited reasonably good catalytic activity for oxygen evolution reaction (OER) while that the NGNS electrode was practically inactive.
- Subjects
ELECTROCHEMICAL apparatus; TUNGSTEN oxides; GRAPHENE
- Publication
AIMS Materials Science, 2016, Vol 3, Issue 4, p1456
- ISSN
2372-0468
- Publication type
Article
- DOI
10.3934/matersci.2016.4.1456