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Electrochemical Characteristics of Polyoxometalate/Polypyrrole/Carbon Cloth Electrode Synthesized by Electrochemical Deposition Method

전기화학 증착법에 의해 합성된 폴리옥소메탈레이트/폴리피롤/탄소천 전극의 전기화학적 특성

  • Yoon, Jo Hee (Department of Chemical Engineering, Kangwon National University) ;
  • Choi, Bong Gill (Department of Chemical Engineering, Kangwon National University)
  • 윤조희 (강원대학교 화학공학과) ;
  • 최봉길 (강원대학교 화학공학과)
  • Received : 2016.06.30
  • Accepted : 2016.07.11
  • Published : 2016.08.10

Abstract

In this report, polyoxometalte (POM)-doped polypyrrole (Ppy) was deposited on surface of three-dimensional carbon cloth (CC) using an electrodeposition method and its pseudocapacitive behavior was investigated using cyclic voltammetry and galvanostatic charge-discharge. The POM-Ppy coating was thin and conformal which can be controlled by electrodeposition time. As-prepared POM-Ppy/CC was characterized using scanning electron microscope and energy-dispersive X-ray spectroscopy. The unique 3D nanocomposite structure of POM-Ppy/CC was capable of delivering excellent charge storage performances: a high areal capacitance ($561mF/cm^2$), a high rate capability (85%), and a good cycling performance (97% retention).

Acknowledgement

Supported by : National Research Foundation of Korea (NRF)

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