Article
  • Enhanced Electrochemical Properties of Electron Beam Irradiated Carbon Nanofibers as an Electrode for Supercapacitor
  • Minjae Kim and Sang Eun Shim*,†

  • School of Mechanical and Control Engineering, Handong Global University, 558 Handong- ro, Buk-gu, Pohang, Gyeongbuk 37554, Korea
    *Department of Chemical Engineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Korea

  • 전자빔이조사된탄소나노섬유슈퍼커패시터전극전기화학적성능개선
  • 김민재 ·심상은*,†

  • 한동대학교 기계제어공학부, *인하대학교 화학공학과

  • Reproduction, stored in a retrieval system, or transmitted in any form of any part of this publication is permitted only by written permission from the Polymer Society of Korea.

Abstract

Surface properties of carbon nanofibers (CNFs) were modified by electron beam (e-beam) irradiation, and electrochemical performances of treated CNFs as the supercapacitor electrode were investigated. Since the capacity of a supercapacitor is affected by the surface properties of the electrode, the improvement of the electrode surface properties using various techniques has been widely investigated, however, e-beam treatment on CNFs is quite limited. In this study, CNFs were manufactured through the carbonization process of polymer nanofibers fabricated using electrospinning, and structural and electrochemical properties of e-beam irradiated CNF electrodes were analyzed. By the e-beam treatment, the diameter of CNF decreased from 646 nm to 457 nm, and the surface area increased from 529 m2g-1 to 1452 m2g-1. e-Beam irradiated CNFs were used as supercapacitor electrodes to analyze their electrochemical performance and showed a great electrochemical performance compared to the pristine CNFs.


본 연구에서는 탄소나노섬유의 표면 특성을 전자 빔 조사를 통하여 개선하였고, 슈퍼커패시터 전극으로 활용하여 개선된 전기화학적 성능을 확인하였다. 슈퍼커패시터의 용량은 전극의 표면 성능과 밀접한 관계가 있기 때문에, 다양한 기법을 활용한 전극 표면 개선 연구가 진행되고 있으나, 전자 빔을 사용하여 탄소섬유의 표면을 개선한 전극 연구는 미비한 실정이다. 본 연구에서는 전기 방사 기법을 활용하여 제조된 고분자 나노 섬유를 탄화 과정을 거쳐 탄소나노섬유로 제조하고, 전자 빔을 조사하여 탄소나노섬유의 구조적, 전기화학적 성능을 분석하였다. 전자 빔을 조사한 탄소나노섬유의 직경은 646 nm에서 457 nm까지 감소하였으며, 이에 따른 표면적이 529 m2g-1부터 1452 m2g-1까지 증가하였다. 전자 빔이 조사된 탄소나노섬유는 슈퍼커패시터 전극으로 활용되어 전기화학 성능을 분석하였고, 전자 빔이 처리되지 않은 탄소나노섬유는 전극 용량 대비 개선된 표면특성으로 인하여 우수한 전기화학적 성능을 보였다.


Keywords: carbon nanofiber, electron beam, supercapacitor, electrospinning.

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2022; 46(5): 654-660

    Published online Sep 25, 2022

  • 10.7317/pk.2022.46.5.654
  • Received on May 17, 2022
  • Revised on Jun 28, 2022
  • Accepted on Jul 18, 2022

Correspondence to

  • Sang Eun Shim
  • Department of Chemical Engineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Korea

  • E-mail: seshim@inha.ac.kr