Facile Synthesis of Co3O4-Incorporated Multichannel Carbon Nanofibers for Electrochemical Applications
- Authors
- Kim S.G.; Jun J.; Kim Y.K.; Kim J.; Lee J.S.; Jang J.
- Issue Date
- May-2020
- Publisher
- AMER CHEMICAL SOC
- Keywords
- carbon nanofibers; cobalt oxide; electrochemical device; electrospinning; plasma functionalization
- Citation
- ACS applied materials & interfaces, v.12, no.18, pp.20613 - 20622
- Journal Title
- ACS applied materials & interfaces
- Volume
- 12
- Number
- 18
- Start Page
- 20613
- End Page
- 20622
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/52264
- DOI
- 10.1021/acsami.0c06254
- ISSN
- 1944-8252
- Abstract
- Considering their superior electrochemical performances, extensive studies have been carried out on composite nanomaterials based on porous carbon nanofibers. However, the introduction of inorganic components into a porous structure is complex and has a low yield. In this study, we propose a simple synthesis of cobalt-oxide-incorporated multichannel carbon nanofibers (P-Co-MCNFs) as electrode materials for electrochemical applications. The cobalt oxide component is directly formed in the carbon structure by a simple oxygen plasma exposure of the phase-separated polymer nanofibers. P-Co-MCNF displays high specific capacitance (815 F g-1 at 2.0 A g-1), rate capability (821 F g-1 at 1 A g-1 and 786 F g-1 at 20 A g-1), and cycle stability (92.1% for 5000 cycles) as a supercapacitor electrode. Moreover, excellent sensitivity (down to 1 nM) and selectivity to the glucose molecule is demonstrated for nonenzyme sensor applications.
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