Fabrication and characterization of flexible and high capacitance supercapacitors based on MnO2/CNT/papers

Yu Jin Kang; Byungwoo Kim; Haegeun Chung; Woong Kim

doi:10.1016/j.synthmet.2010.09.036

Fabrication and characterization of flexible and high capacitance supercapacitors based on MnO₂/CNT/papers

Yu Jin Kang, Byungwoo Kim, Haegeun Chung, Woong Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

91 Citations (Scopus)

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 MnO ₂/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 (Na ₂SO₄) 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.

Original language	English
Pages (from-to)	2510-2514
Number of pages	5
Journal	Synthetic Metals
Volume	160
Issue number	23-24
DOIs	https://doi.org/10.1016/j.synthmet.2010.09.036
Publication status	Published - 2010 Dec

Keywords

Carbon nanotubes
Flexible
Manganese oxides
Papers
Supercapacitors

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.synthmet.2010.09.036

Cite this

@article{e2f944413b994268be3ade80afe18505,

title = "Fabrication and characterization of flexible and high capacitance supercapacitors based on MnO2/CNT/papers",

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 MnO 2/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 (Na 2SO4) 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.",

keywords = "Carbon nanotubes, Flexible, Manganese oxides, Papers, Supercapacitors",

author = "Kang, {Yu Jin} and Byungwoo Kim and Haegeun Chung and Woong Kim",

note = "Funding Information: This work was supported by the Korea Research Council of Fundamental Science & Technology (KRCF) and Korea Institute of Science & Technology (KIST) for “National Agenda Project” program, and by the Pioneer Research Center Program through the National Research Foundation of Korea (No. 2010-0002191).",

year = "2010",

month = dec,

doi = "10.1016/j.synthmet.2010.09.036",

language = "English",

volume = "160",

pages = "2510--2514",

journal = "Synthetic Metals",

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AU - Kang, Yu Jin

AU - Kim, Byungwoo

AU - Chung, Haegeun

AU - Kim, Woong

N1 - Funding Information: This work was supported by the Korea Research Council of Fundamental Science & Technology (KRCF) and Korea Institute of Science & Technology (KIST) for “National Agenda Project” program, and by the Pioneer Research Center Program through the National Research Foundation of Korea (No. 2010-0002191).

PY - 2010/12

Y1 - 2010/12

N2 - 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 MnO 2/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 (Na 2SO4) 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.

AB - 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 MnO 2/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 (Na 2SO4) 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.

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KW - Flexible

KW - Manganese oxides

KW - Papers

KW - Supercapacitors

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