Article
  • Preparation of Porous Carbon Films from Poly(vinyl alcohol) by Ion Beam Irradiation and Carbonization
  • Beom-Seok Choi*, Jang-Yong Lee*, Byoung-Min Lee*, Da-Sol Kwon**, and Jae-Hak Choi*,**,†

  • *Department of Polymer Science and Engineering, Chungnam National University, Daejeon 34134, Korea
    **Department of Energy Science and Technology, Chungnam National University Daejeon 34134, Korea

  • 폴리(비닐 알코올)로부터 이온빔 조사 및 탄화에 의한 다공성 탄소 필름 제조
  • 최범석* · 이장용* · 이병민* · 권다솔** · 최재학*,**,†

  • *충남대학교 고분자공학과, **충남대학교 에너지과학기술학과

Abstract

In this study, porous carbon film (PCF) was prepared from poly(vinyl alcohol) (PVA) by ion beam irradiation and carbonization. Porous PVA film prepared by non-solvent-induced phase separation method was irradiated with ion beam under various conditions and then carbonized at 1000 ℃ under inert atmosphere. It was confirmed that crosslinked polyene structures were formed in the PVA by ion beam irradiation-induced dehydrogenation, dehydration, and crosslinking reactions, and that the formed polyene structures were converted into pseudo-graphitic structures by carbonization. The results of the FE-SEM analysis revealed that pore structures of porous PVA films irradiated at a high fluence were well maintained during carbonization. The electrical conductivity of the prepared PCF was not significantly changed with fluence and exhibited an average electrical conductivity of ~1.20×102 S/cm.


본 연구에서는 폴리(비닐 알코올)(PVA)로부터 이온빔 조사 및 탄화에 의하여 다공성 탄소 필름(porous carbon film, PCF)을 제조하였다. 비용매 유도 상전이 법에 의하여 제조된 다공성 PVA 필름에 다양한 조건으로 이온빔을 조사한 후, 비활성 분위기 하에 1000 ℃로 탄화하여 PCF를 제조하였다. 실험 결과 이온빔 조사에 의한 탈수소화, 탈수, 가교 등의 화학 반응에 의하여 PVA에 가교화된 폴리엔 구조가 형성되며, 이러한 구조들은 탄화 과정에서 유사 흑연 구조로 변화하였다. 형태학적 분석 결과, 이온빔 조사량이 증가함에 따라 탄화 과정에서 기공구조가 잘 유지되었다. 제조된 PCF의 전기 전도도는 이온빔 조사량에 따라 큰 차이는 없었으며 평균 1.20×102 S/cm의 전기전도도를 가지고 있었다.


Keywords: poly(vinyl alcohol), phase inversion, ion beam, carbonization, porous carbon film

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2018; 42(6): 925-930

    Published online Nov 25, 2018

  • 10.7317/pk.2018.42.6.925
  • Received on Mar 19, 2018
  • Revised on Apr 26, 2018
  • Accepted on May 23, 2018

Correspondence to

  • Jae-Hak Choi*,**
  • *Department of Polymer Science and Engineering, Chungnam National University, Daejeon 34134, Korea
    **Department of Energy Science and Technology, Chungnam National University Daejeon 34134, Korea

  • E-mail: jaehakchoi@cnu,ac.kr