Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Preparation and Characterization of a Cross-Linked Anion-Exchange Membrane Based on PVC for Electrochemical Capacitor

전기화학 캐퍼시터용 PVC기반 가교 음이온교환 멤브레인의 제조 및 특성

  • Kim, Young-Ji (Department of Cosmetic Science, Hannam University) ;
  • Kim, Soo-Yeoun (Department of Cosmetic Science, Hannam University) ;
  • Choi, Seong-Ho (Department of Cosmetic Science, Hannam University)
  • 김영지 (한남대학교 코스메틱사이언스학과) ;
  • 김수연 (한남대학교 코스메틱사이언스학과) ;
  • 최성호 (한남대학교 코스메틱사이언스학과)
  • Received : 2021.06.04
  • Accepted : 2021.06.29
  • Published : 2021.06.30
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Abstract

Three-type PVC membranes denoted by AEM-1, AEM-2, and AEM-3 with a cross-linked anion-exchange group were prepared by substitution reaction of PVC with triethyldiamine (TEDA), 1,4-dimethylpiperazine (DMP), and 1,4-bis(imidazol-1-ylmethyl)benzene (BIB) in cyclohexanone, respectively. We confirmed the successful preparation of the AEM-1, AEM-2, and AEM-3 via ionic conductivity (S/cm), water uptake (%), contact angle, ion-exchange capacity (meq/g), thermal properties, SEM and XPS analysis, respectively. The electrochemical capacitor experiments using PVC membrane with cross-linked anion-exchange group in organic electrolytes were performed. The prepared AEM-1, AEM-2 AEM-3 have a good stability by charge and discharge performance in organic electrolyte. As a result, the AEM-2 and AEM-3 membrane based on PVC prepared by the solvent casting method after substituent reaction is suitable for the use as a separator in organic electrochemical capacitor (supercapacitor).

본 연구에서는 싸이크론 헥산에서 PVC와 트리에틸디아민 (TEDA), 1,4-디메틸피페라진(DMP) 및 1,4-비스(이미다졸-1-일메틸)벤젠을 각각 치환반응시켜서3가지 형태의 PVC 멤브레인, AEM-1, AEM-2, and AEM-3를 제조하였다. AEM-1, AEM-2, and AEM-3멤브레인의 성공적인 제조 여부를 이온전도도(S/cm), 물함수율 (%), 접촉각, 이온교환능력 (meq/g), 열분석, SEM 및 XPS 분석 통하여 확인하였다. 또한, 제조된 가교 음이온 PVC멤브레인을 사용하여 유기전해질에서 전기화학 캐퍼시터 실험을 수행한 결과, 제조된 AEM-1, AEM-2 AEM-3 멤브레인의 경우 유기전해질에서 충/방전실험결과 매우 안정적임을 확인 할 수 있었다. 이러한 결과로 치환반응 후에 용매 캐시팅법으로 제조된 PVC기반 멤브레인 (AEM-1, AEM-2, 및 AEM-3)의 경우 유기전기화학캐퍼시터 (슈퍼캐퍼시터)용 분리막으로 사용될 수 있다.

Keywords

Acknowledgement

This work was supported by the Korean Innovation Foundation (2020-DD-RD-0124-01-201).

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