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

被引：26

作者：

Ryu, Sung Kwan ^{[1
]}

Kim, Ae Rhan ^{[1
,2
]}

Vinothkannan, Mohanraj ^{[3
]}

Lee, Kyu Ha ^{[2
]}

Chu, Ji Young ^{[2
]}

Yoo, Dong Jin ^{[1
,2
,3
]}

机构：

[1] Jeonbuk Natl Univ, Hydrogen & Fuel Cell Res Ctr, Convers Engn Grad Sch BK21 FOUR, Dept Energy Storage, Jeonju 54896, Jeollabuk Do, South Korea

[2] Jeonbuk Natl Univ, Dept Life Sci, Jeonju 54896, Jeollabuk Do, South Korea

[3] Jeonbuk Natl Univ, R&D Educ Ctr Whole Life Cycle R&D Fuel Cell Syst, Jeonju 54896, Jeollabuk Do, South Korea

来源：

POLYMERS | 2021年 / 13卷 / 14期

基金：

新加坡国家研究基金会;

关键词：

hydrocarbon membrane; inorganic nanofiller; proton conductivity; ion cluster; PEMFC; NAFION AGGLOMERATE MORPHOLOGY; COMPOSITE MEMBRANES; NANOCOMPOSITE MEMBRANES; CONDUCTIVITY; PEMFC; SULFONE)S; ENHANCEMENT; STABILITY; WATER;

D O I：

10.3390/polym13142364

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

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 degrees 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 degrees C under 100% RH in PEMFCs.

引用

页数：17

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