121st General Meeting of the KCS

Type Poster Presentation
Area Material Chemistry
Room No. Event Hall
Time 4월 20일 (금요일) 11:00~12:30
Code MAT.P-490
Subject Fabrication of Electrically Conducting and Thermoelectric Polymer/Carbon Nanotubes composite Aerogels
Authors Gyung Hyun Yoon, O Ok Park1,*
Department of Chemical and Biomolecular Engineerin, Korea Advanced Institute of Science and Technology, Korea
1Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Korea
Abstract Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) is one of the most excellent conducting polymer as well as thermoelectric polymer due to good water solubility , flexibility, economic and commercial availability. Furthermore, carbon nanotube (CNT) is also one of the high conducting materials. In this paper, we present the characterization of PEDOT:PSS /CNT nanocomposite aerogels fabricated via an easy and reproducible freeze–drying method adding crosslinking agents, such as glycidoxypropyl trimethoxysilane (GOPS). For fabrication of the aerogel, freeze-drying method is used from dispersed PEDOT:PSS/CNT solution. After crosslinking process at 140℃, the nanocomposite aerogels are successfully formed. These nanocomposite aerogels show better electrical conductivity and thermoelectric effect than those of pristine PEDOT:PSS aerogels due to embedding CNTs into PEDOT:PSS matrix. Moreover, by combining PEDOT:PSS and nanofibrillated cellulose (NFC), mechanical property of aerogels is enhanced. Therefore, this work demonstrates that the electrical property of PEDOT:PSS aerogels can be improved by adding CNT with facile method.
E-mail dbsrudgus9@kaist.ac.kr