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High-performance proton-exchange membrane water electrolysis using a sulfonated poly(arylene ether sulfone) membrane and ionomer

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Title
High-performance proton-exchange membrane water electrolysis using a sulfonated poly(arylene ether sulfone) membrane and ionomer
Author(s)
Ji Eun Park; Junghwan Kim.; Jusung Han; Kihyun Kim; SungBin Park; Sungjun Kim; Hyun S. Park; Yong-Hun Cho; Jong-Chan Lee; Yung-Eun Sung
Publication Date
2021-02
Journal
Journal of Membrane Science, v.620
Publisher
Elsevier BV
Abstract
© 2020 Sulfonated poly(arylene ether sulfone) with degree of sulfonation of 50 mol.% (SPAES50) was synthesized for the preparation of a hydrocarbon-based membrane and ionomer, for application to proton-exchange membrane water electrolysis (PEMWE) as an alternative to Nafion™. The SPAES50 membrane showing the excellent physical and electrochemical properties as well as the SPAES50-based ionomer (P50) were prepared and applied to PEMWE to evaluate its performance. The effects of the membrane thickness and ionomer content were also investigated to realize high-performance SPAES-based PEMWE. The proposed SPAES-based PEMWE showed higher performance than that of commercial PEMWE with a Nafion™ membrane and ionomer. Additionally, this is the best performance reported to date, and it is attributed to the low ohmic resistance caused by the high proton conductivity of SPAES50 membrane and the small membrane thickness (20 μm). Therefore, we demonstrate the great potential of SPAES50 as a hydrocarbon-based membrane and ionomer in PEMWE.
URI
https://pr.ibs.re.kr/handle/8788114/9944
DOI
10.1016/j.memsci.2020.118871
ISSN
0376-7388
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > 1. Journal Papers (저널논문)
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