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Nitrogen and Sulfur Co-doped Graphene Supported Cobalt Sulfide Nanoparticles as an Efficient Air Cathode for Zinc-air Battery

Title
Nitrogen and Sulfur Co-doped Graphene Supported Cobalt Sulfide Nanoparticles as an Efficient Air Cathode for Zinc-air Battery
Authors
Ganesan, P[Ganesan, Pandian]Ramakrishnan, P[Ramakrishnan, Prakash]Prabu, M[Prabu, Moni]Shanmugam, S[Shanmugam, Sangaraju]
DGIST Authors
Ganesan, P[Ganesan, Pandian]; Prabu, M[Prabu, Moni]; Shanmugam, S[Shanmugam, Sangaraju]
Issue Date
2015-11-20
Citation
Electrochimica Acta, 183, 63-69
Type
Article
Article Type
Article; Proceedings Paper
Keywords
Air CathodeCathodesCharge and DischargeCobaltCobalt SulfideDischarge BehaviorsElectric BatteriesElectric DischargesElectrodesGrapheneGraphene OxideGraphene OxidesKey Words Air CathodeNanoparticlesNitrogenOxygen EvolutionSecondary BatteriesSolid State ThermolysisSulfurSulfur CompoundsTransition-Metals CompoundsX-Ray Diffraction StudiesX Ray DiffractionZincZinc-Air BatteryZinc Sulfide
ISSN
0013-4686
Abstract
Zinc-air battery is considered as one of the promising energy storage devices due to their low cost, eco-friendly and safe. Here, we present a simple approach to the preparation of cobalt sulfide nanoparticles supported on a nitrogen and sulfur co-doped graphene oxide surface. Cobalt sulfide nanoparticles dispersed on graphene oxide hybrid was successfully prepared by solid state thermolysis approach at 400 °C, using cobalt thiourea and graphene oxide. X-ray diffraction study revealed that hybrid electrode prepared at 400 °C results in pure CoS2 phase. The hybrid CoS2(400)/N,S-GO electrode exhibits low over-potential gap about 0.78 V vs. Zn after 70 cycles with remarkable and robust charge and discharge profile. And also the CoS2(400)/N,S-GO showing deep discharge behavior with stability up to 7.5 h. © 2015 Elsevier Ltd. All rights reserved.
URI
http://hdl.handle.net/20.500.11750/2814
DOI
10.1016/j.electacta.2015.05.182
Publisher
Elsevier Ltd
Related Researcher
Files:
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Collection:
Energy Science and EngineeringAdvanced Energy Materials Laboratory1. Journal Articles


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