Influence of the Hydrophilic Surface of Nanofiber Support on the Performance of Hybrid Supercapacitors

Hyo-Young Kim, Seon-Yeong Lee, In-Yup Jeon, Jeeyoung Shin and Young-Wan Ju
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Hyo-Young Kim: Department of Chemical Engineering, College of Engineering, Wonkwang University, Iksan 54538, Korea
Seon-Yeong Lee: Department of Chemical Engineering, College of Engineering, Wonkwang University, Iksan 54538, Korea
In-Yup Jeon: Department of Chemical Engineering, College of Engineering, Wonkwang University, Iksan 54538, Korea
Jeeyoung Shin: Department of Mechanical Systems Engineering, Sookmyung Women’s University, Seoul 04310, Korea
Young-Wan Ju: Department of Chemical Engineering, College of Engineering, Wonkwang University, Iksan 54538, Korea

Energies, 2021, vol. 14, issue 22, 1-11

Abstract: Concerns associated with global warming and the depleting reserves of fossil fuels have highlighted the importance of high−performance energy storage systems (ESSs) for efficient energy usage. ESSs such as supercapacitors can contribute to improved power quality of an energy generation system, which is characterized by a slow load response. Composite materials are primarily used as supercapacitor electrodes because they can compensate for the disadvantages of carbon or metal oxide electrode materials. In this study, a composite of oxide nanoparticles loaded on a carbon nanofiber support was used as an electrode material for a hybrid supercapacitor. The addition of a small amount of hydrophilic FeN@GnP (Fe− and N−doped graphene nanoplates) modified the surface properties of carbon nanofibers prepared by electrospinning. Accordingly, the effects of the hydrophobic/hydrophilic surface properties of the nanofiber support on the morphology of Co 3 O 4 nanoparticles loaded on the nanofiber, as well as the performance of the supercapacitor, were systematically investigated.

Keywords: composite electrode; nanofiber support; hydrophobic/hydrophilic properties; dispersibility; supercapacitor (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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