Enhancing Physicochemical Properties and Single Cell Performance of Sulfonated Poly(arylene ether) (SPAE) Membrane by Incorporation of Phosphotungstic Acid and Graphene Oxide: A Potential Electrolyte for Proton Exchange Membrane Fuel Cells

Sung Kwan  Ryu; Ae Rhan Kim; Vinothkannan Mohanraj; Kyu Ha  Lee; Ji Young Chu; Dong Jin Yoo

doi:10.3390/polym13142364

Enhancing Physicochemical Properties and Single Cell Performance of Sulfonated Poly(arylene ether) (SPAE) Membrane by Incorporation of Phosphotungstic Acid and Graphene Oxide: A Potential Electrolyte for Proton Exchange Membrane Fuel Cells

Sung Kwan Ryu, Ae Rhan Kim, Vinothkannan Mohanraj, Kyu Ha Lee, Ji Young Chu, Dong Jin Yoo

Jeonbuk National University

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

37 Downloads (Pure)

Abstract

The development of potential and novel proton exchange membranes (PEMs) is imperative for the further commercialization of PEM fuel cells (PEMFCs). In this work, phosphotungstic acid (PWA) and graphene oxide (GO) were integrated into sulfonated poly(arylene ether) (SPAE) through a solution casting approach to create a potential composite membrane for PEMFC applications. Thermal stability of membranes was observed using thermogravimetric analysis (TGA), and the SPAE/GO/PWA membranes exhibited high thermal stability compared to pristine SPAE membranes, owing to the interaction between SPAEK, GO, and PWA. By using a scanning electron microscope (SEM) and atomic force microscope (AFM), we observed that GO and PWA were evenly distributed throughout the SPAE matrix. The SPAE/GO/PWA composite membrane comprising 0.7 wt% GO and 36 wt% PWA exhibited a maximum proton conductivity of 186.3 mS cm ⁻¹ at 90 ^◦C under 100% relative humidity (RH). As a result, SPAE/GO/PWA composite membrane exhibited 193.3 mW cm ⁻² of the maximum power density at 70 ^◦C under 100% RH in PEMFCs.

Original language	English
Article number	2364
Number of pages	17
Journal	Polymers
Volume	13
Issue number	14
DOIs	https://doi.org/10.3390/polym13142364
Publication status	Published - 19 Jul 2021
Externally published	Yes

Bibliographical note

© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

Funder

This work was supported by the research funds of Jeonbuk National University, Republic of Korea in 2021. This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of Republic of Korea (No. 20184030202210). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (NRF-2020R1A2B5B01001458).

Funding

This work was supported by the research funds of Jeonbuk National University, Republic of Korea in 2021. This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of Republic of Korea (No. 20184030202210). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (NRF-2020R1A2B5B01001458).

Funders	Funder number
Ministry of Trade, Industry and Energy	20184030202210
Ministry of Science and ICT	NRF-2020R1A2B5B01001458
National Research Foundation of Korea
Korea Institute of Energy Technology Evaluation and Planning
Jeonbuk National University

Keywords

Hydrocarbon membrane
Inorganic nanofiller
Ion cluster
PEMFC
Proton conductivity

ASJC Scopus subject areas

General Chemistry
Polymers and Plastics

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Ryu, S. K., Kim, A. R., Mohanraj, V., Lee, K. H., Chu, J. Y., & Yoo, D. J. (2021). Enhancing Physicochemical Properties and Single Cell Performance of Sulfonated Poly(arylene ether) (SPAE) Membrane by Incorporation of Phosphotungstic Acid and Graphene Oxide: A Potential Electrolyte for Proton Exchange Membrane Fuel Cells. Polymers, 13(14), Article 2364. https://doi.org/10.3390/polym13142364

Enhancing Physicochemical Properties and Single Cell Performance of Sulfonated Poly(arylene ether) (SPAE) Membrane by Incorporation of Phosphotungstic Acid and Graphene Oxide: A Potential Electrolyte for Proton Exchange Membrane Fuel Cells. / Ryu, Sung Kwan ; Kim, Ae Rhan; Mohanraj, Vinothkannan et al.
In: Polymers, Vol. 13, No. 14, 2364, 19.07.2021.

Research output: Contribution to journal › Article › peer-review

Ryu, SK, Kim, AR, Mohanraj, V, Lee, KH, Chu, JY & Yoo, DJ 2021, 'Enhancing Physicochemical Properties and Single Cell Performance of Sulfonated Poly(arylene ether) (SPAE) Membrane by Incorporation of Phosphotungstic Acid and Graphene Oxide: A Potential Electrolyte for Proton Exchange Membrane Fuel Cells', Polymers, vol. 13, no. 14, 2364. https://doi.org/10.3390/polym13142364

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abstract = "The development of potential and novel proton exchange membranes (PEMs) is imperative for the further commercialization of PEM fuel cells (PEMFCs). In this work, phosphotungstic acid (PWA) and graphene oxide (GO) were integrated into sulfonated poly(arylene ether) (SPAE) through a solution casting approach to create a potential composite membrane for PEMFC applications. Thermal stability of membranes was observed using thermogravimetric analysis (TGA), and the SPAE/GO/PWA membranes exhibited high thermal stability compared to pristine SPAE membranes, owing to the interaction between SPAEK, GO, and PWA. By using a scanning electron microscope (SEM) and atomic force microscope (AFM), we observed that GO and PWA were evenly distributed throughout the SPAE matrix. The SPAE/GO/PWA composite membrane comprising 0.7 wt% GO and 36 wt% PWA exhibited a maximum proton conductivity of 186.3 mS cm −1 at 90 ◦C under 100% relative humidity (RH). As a result, SPAE/GO/PWA composite membrane exhibited 193.3 mW cm −2 of the maximum power density at 70 ◦C under 100% RH in PEMFCs.",

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Enhancing Physicochemical Properties and Single Cell Performance of Sulfonated Poly(arylene ether) (SPAE) Membrane by Incorporation of Phosphotungstic Acid and Graphene Oxide: A Potential Electrolyte for Proton Exchange Membrane Fuel Cells

Abstract

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