Fabrication and characterization of flexible and high capacitance supercapacitors based on MnO2/CNT/papers
- Authors
- Kang, Yu Jin; Kim, Byungwoo; Chung, Haegeun; Kim, Woong
- Issue Date
- 12월-2010
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Carbon nanotubes; Manganese oxides; Papers; Supercapacitors; Flexible
- Citation
- SYNTHETIC METALS, v.160, no.23-24, pp.2510 - 2514
- Indexed
- SCIE
SCOPUS
- Journal Title
- SYNTHETIC METALS
- Volume
- 160
- Number
- 23-24
- Start Page
- 2510
- End Page
- 2514
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/115206
- DOI
- 10.1016/j.synthmet.2010.09.036
- ISSN
- 0379-6779
- Abstract
- Flexible paper-based supercapacitors were fabricated using carbon nanotubes (CNTs) and manganese oxides (MnO2), and their electrochemical properties were characterized in a three-electrode system. CNTs were synthesized via water-assisted chemical vapor deposition (CVD) and dispersed in water using the surfactant sodium dodecylbenzenesulfonate (SDBS). The solution containing dispersed CNTs was simply coated on papers by drop-dry method. MnO2 was then electrochemically deposited on the CNT-coated papers. The MnO2/CNT/paper supercapacitors showed high specific capacitance of 540 F/g. Specific energy and specific power were 20 Wh/kg and 1.5 kW/kg, respectively, at current density of 5 A/g in 0.1 M sodium sulfate (Na2SO4) aqueous solution. Demonstrated high capacitance of the paper-based electrochemical capacitor makes it a promising candidate for flexible and low-cost energy storage device applications. (C) 2010 Elsevier B.V. All rights reserved.
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