Journal article
Maricite (NaMn1/3Ni1/3Co1/3PO 4)/activated carbon: Hybrid capacitor
Energy & Fuels, Vol.27(6), pp.3516-3522
2013
Abstract
A hybrid capacitor comprising mixed transition-metal sodium phosphate/activated carbon (AC) with sodium hydroxide electrolyte is reported for the first time. The sodium phosphate (maricite, NaMn1/3Ni 1/3Co1/3PO4) positive material was prepared by both urea-assisted combustion and polyvinyl pyrrolidone (PVP)-assisted sol-gel syntheses. The electrochemical behavior of maricite and AC was characterized by cyclic voltammetry (CV) and charge-discharge methods. The reaction mechanism at the maricite electrode in NaOH(aq) electrolyte appears to be reversible, involving a faradaic process, while the AC shows capacitive behavior involving a non-faradaic process. The aqueous hybrid capacitor, maricite (as the cathode), and AC (as the anode) studied by galvanostatic (charge-discharge) cycling in the range of 0-1.6 V at 0.5 A g-1 exhibited a specific discharge capacitance of 45 F g-1 stable over 1000 cycles.
Details
- Title
- Maricite (NaMn1/3Ni1/3Co1/3PO 4)/activated carbon: Hybrid capacitor
- Authors/Creators
- M. Minakshi (Author/Creator)D. Meyrick (Author/Creator)D. Appadoo (Author/Creator)
- Publication Details
- Energy & Fuels, Vol.27(6), pp.3516-3522
- Publisher
- American Chemical Society
- Identifiers
- 991005545510407891
- Copyright
- © 2013 American Chemical Society.
- Murdoch Affiliation
- School of Chemical and Mathematical Science; School of Veterinary and Life Sciences
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 2 Chemistry
- 2.62 Electrochemistry
- 2.62.52 Electrode Materials
- Web Of Science research areas
- Energy & Fuels
- Engineering, Chemical
- ESI research areas
- Engineering