Capacitance behaviors of Polyaniline/Graphene Nanosheet Composites Prepared by Aniline Chemical Polymerization
(주)코리아스칼라
- 최초 등록일
- 2016.04.02
- 최종 저작일
- 2013.03
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서지정보
ㆍ발행기관 : 한국탄소학회
ㆍ수록지정보 : Carbon letters / 14권 / 1호
ㆍ저자명 : Jieun Kim, Soo-Jin Park, Seok Kim
영어 초록
In this study, polyaniline (PANI)/graphene nanosheet (GNS) composites were synthesized through chemical oxidation polymerization by changing the weight ratio of aniline mono-mers. To examine the morphological structure of the composites, scanning electron micros-copy and transmission electron microscopy (TEM) were conducted. TEM results revealed that fibril-likePANI with a diameter of 50 nm was homogeneously coated on the surface of the GNS. The electrochemical properties of the composites were studied by cyclic voltam-metry in 1 M H2SO4 electrolyte. Among the prepared samples, the PANI/GNS (having 40 wt% aniline content) showed the highest specificcapacitance, 528 Fg-1, at 10 mVs-1. The im-proved performance was attributed to the GNS, which provides a large number of active sites and good electrical conductivity. The resulting composites are promising electrode materials for high capacitative supercapacitors.
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