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Graphene oxide crosslinked poly(phenylene oxide) nanocomposite as high-performance anion-conducting membrane
- Authors
- Das, Gautam; Dongho, Kang; Kim, Chae Yeon; Yoon, Hyon Hee
- Issue Date
- 25-Apr-2019
- Publisher
- ELSEVIER SCIENCE INC
- Keywords
- Nanocomposites; Anion exchange membrane; Bromination; Crosslinking; Graphene oxide; Poly(phenylene oxide)
- Citation
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.72, pp.380 - 389
- Journal Title
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
- Volume
- 72
- Start Page
- 380
- End Page
- 389
- ISSN
- 1226-086X
- Abstract
- Anion conducting nanocomposite membranes were synthesized by crosslinking quaternized poly (phenylene oxide) with 1,4-diazabicyclo[2.2.2]octane modified graphene oxide (QGO). FTIR, SEM, AFM and TEM were used to study the functionalization, structure, and morphology of the membranes. The effect of QGO on ionic conductivity, water uptake, and swelling ratio were studied in detail. The nanocomposite membrane exhibited an ionic conductivity of similar to 90 mS cm(-1) at 25 degrees C and reached 151 mS cm(-1) at 80 degrees C owing to good microphase separation. A power density of 5.2 mW cm(-2) at 60 degrees C for urea/O-2 fuel cell was obtained using the nanocomposite membrane. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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