Synthesis and Electrochemical Performance of Polypyrrole- Coated Iron Oxide/Carbon Nanotube Composites
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서지정보
ㆍ발행기관 : 한국탄소학회
ㆍ수록지정보 : Carbon Letters / 13권 / 3호
ㆍ저자명 : Dae-WonKim, Ki-SeokKim, Soo-JinPark
ㆍ저자명 : Dae-WonKim, Ki-SeokKim, Soo-JinPark
목차
Abstract1. Introduction
2. Experimental
3. Results and Discussion
4. Conclusions
Acknowledgments
References
한국어 초록
In this work, iron oxide (Fe3O4) nanoparticles were deposited on multi-walled carbon nanotubes(MWNTs) by a simple chemical coprecipitation method and Fe3O4-decorated MWNTs
(Fe-MWNTs)/polypyrrole (PPy) nanocomposites (Fe-MWNTs/PPy) were prepared by oxidation
polymerization. The effect of the PPy on the electrochemical properties of the Fe-
MWNTs was investigated. The structures characteristics and surface properties of MWNTs,
Fe-MWNTs, and Fe-MWNTs/PPy were characterized by X-ray diffraction and X-ray photoelectron
spectroscopy, respectively. The electrochemical performances of MWNTs, Fe-
MWNTs, and Fe-MWNTs/PPy were determined by cyclic voltammetry and galvanostatic
charge/discharge characteristics in a 1.0 M sodium sulfite electrolyte. The results showed
that the Fe-MWNTs/PPy electrode had typical pseudo-capacitive behavior and a specific capacitance
significantly greater than that of the Fe-MWNT electrode, indicating an enhanced
electrochemical performance of the Fe-MWNTs/PPy due to their high electrical properties.
영어 초록
In this work, iron oxide (Fe3O4) nanoparticles were deposited on multi-walled carbon nanotubes(MWNTs) by a simple chemical coprecipitation method and Fe3O4-decorated MWNTs(Fe-MWNTs)/polypyrrole (PPy) nanocomposites (Fe-MWNTs/PPy) were prepared by oxidationpolymerization. The effect of the PPy on the electrochemical properties of the Fe-MWNTs was investigated. The structures characteristics and surface properties of MWNTs,Fe-MWNTs, and Fe-MWNTs/PPy were characterized by X-ray diffraction and X-ray photoelectronspectroscopy, respectively. The electrochemical performances of MWNTs, Fe-MWNTs, and Fe-MWNTs/PPy were determined by cyclic voltammetry and galvanostaticcharge/discharge characteristics in a 1.0 M sodium sulfite electrolyte. The results showedthat the Fe-MWNTs/PPy electrode had typical pseudo-capacitive behavior and a specific capacitancesignificantly greater than that of the Fe-MWNT electrode, indicating an enhancedelectrochemical performance of the Fe-MWNTs/PPy due to their high electrical properties.참고 자료
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