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Nitrogen and Sulfur Co-doped Graphene Supported Cobalt Sulfide Nanoparticles as an Efficient Air Cathode for Zinc-air Battery
- Nitrogen and Sulfur Co-doped Graphene Supported Cobalt Sulfide Nanoparticles as an Efficient Air Cathode for Zinc-air Battery
- Ganesan, Pandian; Ramakrishnan, Prakash; Prabu, Moni; Shanmugam, Sangaraju
- DGIST Authors
- Ramakrishnan, Prakash; Shanmugam, Sangaraju
- Issue Date
- Electrochimica Acta, 183, 63-69
- Article Type
- Article; Proceedings Paper
- Air Cathode; Cathodes; Charge and Discharge; Cobalt; Cobalt Sulfide; Discharge Behaviors; Electric Batteries; Electric Discharges; Electrodes; Graphene; Graphene Oxide; Graphene Oxides; Key Words Air Cathode; Nanoparticles; Nitrogen; Oxygen Evolution; Secondary Batteries; Solid State Thermolysis; Sulfur; Sulfur Compounds; Transition-Metals Compounds; X-Ray Diffraction Studies; X Ray Diffraction; Zinc; Zinc-Air Battery; Zinc Sulfide
- 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.
- Elsevier Ltd
- Related Researcher
Li-ion & solid state batteries; hybrid capacitors/ li-ion capacitors; metal-air-batteries; supercapacitors
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