Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Synthesis of carbon nanosheets using RF thermal plasma

유도 열플라즈마를 이용한 카본나노시트 합성

  • Lee, Seung-Yong (Icheon Branch, Korea Institute of Ceramic Engineering and Technology) ;
  • Ko, Sang-Min (Icheon Branch, Korea Institute of Ceramic Engineering and Technology) ;
  • Koo, Sang-Man (Department of Chemical Engineering, Hanyang University) ;
  • Hwang, Kwang-Taek (Icheon Branch, Korea Institute of Ceramic Engineering and Technology) ;
  • Han, Kyu-Sung (Icheon Branch, Korea Institute of Ceramic Engineering and Technology) ;
  • Kim, Jin-Ho (Icheon Branch, Korea Institute of Ceramic Engineering and Technology)
  • 이승용 (한국세라믹기술원 이천분원) ;
  • 고상민 (한국세라믹기술원 이천분원) ;
  • 구상만 (한양대학교 화학공학과) ;
  • 황광택 (한국세라믹기술원 이천분원) ;
  • 한규성 (한국세라믹기술원 이천분원) ;
  • 김진호 (한국세라믹기술원 이천분원)
  • Received : 2014.09.15
  • Accepted : 2014.10.22
  • Published : 2014.10.31
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Abstract

An ultrathin sheet-like carbon nanostructure provides an important model of a two-dimensional graphite structure with strong anisotropy in physical properties. As an easy and cheap route for mass production, RF thermal plasma synthesis of freestanding carbon nanosheet from $CH_4$ (Methane) and $C_3H_8$ (Propane) is presented. Using vapor synthesis process with RF inductively thermal plasma, carbon nanosheets were obtained without catalysts and substrates. The synthesized carbon nanosheets were characterized using transmission electron microscopy (TEM), Raman spectroscopy, X-ray diffraction (XRD) and Brunauer-Emmett-Teller (BET) analysis. The carbon nanosheets synthesized using methane and propane generally showed 5~6 and 15~16 layers with a wrinkled morphology and size of approximately 100 nm.

2차원 흑연구조를 갖는 카본나노시트는 큰 비표면적과 우수한 전기적, 화학적 및 기계적 물성으로 인하여 미래소재로 각광받고 있다. 경제적이고 쉬운 카본나노시트의 양산공정개발을 위해 본 연구에서는 메테인($CH_4$)과 프로페인($C_3H_8$) 가스를 이용한 유도 열플라즈마 공정을 통해 기상 합성하여 카본나노시트 분말을 합성하였다. 유도 열플라즈마를 이용한 카본나노시트 합성은 촉매나 증착공정 없이 진행되었으며, 합성된 카본나노시트의 물성을 TEM, Raman, XRD, BET로 분석하였다. 메테인과 프로페인으로부터 합성된 카본 나노시트는 각각 5~6개의 그래핀 층과 15~16개의 그래핀 층으로 이루어진 분말로 합성되었으며 분말의 크기는 약 100 nm임을 확인할 수 있었다.

Keywords

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