Particle and Aerosol Research
Vol. 13, No. 1, March 2017, Pages 33-40
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ISSN : 1738-8716 (Print)
ISSN : 2287-8130 (Online)
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Preparation of CoFe2O4-Graphene Composites using Aerosol
Spray Pyrolysis for Supercapacitors Application
Chongmin Lee1),2), Hankwon Chang1),2), Hee Dong Jang1),2)*
1)Resources Utilization Research Center, Korea Institute of Geoscience and Mineral Resources
2)Department of Nanomaterials Science and Engineering, University of Science and Technology
*Corresponding author.
Tel.: +82-42-868-3612, E-mail: hdjang@kigam.re.kr
Received 10 March 2017, Revised 16 March 2017, Accepted 22 March 2017
http://dx.doi.org/10.11629/jpaar.2017.3.31.033
Abstracts
Cobalt-iron oxides have emerged as alternative electrode materials for supercapacitors because they have advantages
of low cost, natural abundance, and environmental friendliness. Graphene loaded with cobalt ferrite (CoFe2O4)
nanoparticles can exhibit enhanced specific capacitance. In this study, we present three-dimensional (3D) crumpled
graphene (CGR) decorated with CoFe2O4 nanoparticles. The CoFe2O4-graphene composites were synthesized from a
colloidal mixture of GO, iron (III) chloride hexahydrate (FeCl3⋅6H2O) and cobalt chloride hexahydrate (CoCl2⋅
6H2O) respectively, via one step aerosol spray pyrolysis. Size of CoFe2O4 nanoparticles was ranged from 5 nm to 10
nm when loaded onto 500 nm CGR. The electrochemical performance of the CoFe2O4-graphene composites was
examined. The CoFe2O4-graphene composite electrode showed the specific capacitance of 253 F g-1.
Keywords
aerosol spray pyrolysis, CoFe2O4, nanoparticles, graphene, supercapacitor
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