Electrochemical Deposition of γ-MnO2 on Ag/rGO Hybrid Films as Flexible Electrode Materials for Asymmetric Supercapacitor

Shiqing Sun; Yongkun Liu; Guohua Jiang; Bo Yu; Uwamahoro Evariste; Pianpian Ma

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자료유형: 학술저널

저자정보: Shiqing Sun (Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT)) Yongkun Liu (Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT)) Guohua Jiang (Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT)) Bo Yu (Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT)) Uwamahoro Evariste (Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT)) Pianpian Ma (Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT))

저널정보: 대한금속·재료학회 Electronic Materials Letters Electronic Materials Letters Vol.15 No.3

발행연도: 2019.1

수록면: 331 - 341 (11page)

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The fl exible electrodes are the essential components for fabricating modern fl exible supercapacitors. In this study, a compositehybrid fi lm integrated with silver nanoparticles (Ag NPs), reduced graphene oxide (rGO) and γ-MnO 2 nanorods asa fl exible electrode has been developed by the electrochemical deposition method. The substrate (rGO) of the electrode notonly provides mechanical stability but also ensures fast electron transfer during charge–discharge. The Ag NPs distributedin electrode provide the electronic channel to enhance the electric conductivity. The γ-MnO 2 electroplated on the surface ofhybrid fi lms further improved the electrochemical performance of them. The resultant γ-MnO 2 /Ag/rGO hybrid fi lms exhibita high specifi c capacitance of 1090.3 F g −1 at current density of 0.3 A g −1 . The asymmetric supercapacitor (ASC) deviceswere further fabricated by γ-MnO 2 /Ag/rGO fi lms as anode and AC/rGO fi lms as cathode electrodes within a wide operatingvoltage of 0–1.7 V. The energy density of obtained ASC devices was 71.8 Wh kg −1 at a power density of 279.4 W kg −1 .

#Supercapacitor · Electrode · Hybrid fi lm

참고문헌 (61)

참고문헌 신청

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Tang, Z. / 2018 / Highly anisotropic, multichannel wood carbon with optimized heteroatom doping for supercapacitor and oxygen reduction reaction / Carbon 130:532~543

Liu, Y. / 2018 / Electrodeposition of Ni–Co–S nanosheet arrays on N-doped porous carbon nanofibers for flexible asymmetric supercapacitors / J. Alloy. Compd 762:301~311

Sun, S. / 2017 / Growth of MnO2nanoparticles on hybrid carbon nanofibers for flexible symmetrical supercapacitors / Mater. Lett 197:35~37

Woodward, R. / 2018 / Carbon foams from emulsion-templated reduced graphene oxide polymer composites:electrodes for supercapacitor devices / J. Mater. Chem. A 6:1840~1849

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