Silicone-containing polymer blend electrolyte membranes for fuel cell applications

被引：2

作者：

Hwang, Byungchan ^{[1
]}

Kondo, Shoichi ^{[2
]}

Kikuchi, Takamasa ^{[2
]}

Sasaki, Kazunari ^{[1
,3
,4
,5
]}

Hayashi, Akari ^{[1
,4
,5
,6
]}

Nishihara, Masamichi ^{[3
,4
,5
]}

机构：

[1] Kyushu Univ, Grad Sch Engn, Fukuoka, Japan

[2] Nissan Chem Corp, Mat Res Labs, Chiba, Japan

[3] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, World Premier Int Res Ctr Initiat, Fukuoka, Japan

[4] Kyushu Univ, Ctr Coevolut Social Syst COI CESS, Ctr Innovat, Fukuoka, Japan

[5] Kyushu Univ, Next Generat Fuel Cell Res Ctr NEXT FC, Fukuoka, Japan

[6] Kyushu Univ, Platform Intertransdisciplinary Energy Res PIT Q, Fukuoka, Japan

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2021年 / 138卷 / 18期

基金：

日本学术振兴会;

关键词：

batteries and fuel cells; blends; polyelectrolytes; polyimides; PROTON-EXCHANGE MEMBRANES; POLY(ARYLENE ETHER SULFONE); MULTIBLOCK COPOLYMERS; CONDUCTING MEMBRANES; POLYIMIDE; TEMPERATURE; KETONE); SULFONATION; DURABILITY; TRANSPORT;

D O I：

10.1002/app.50328

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polymer electrolyte membranes are developed from blends of chemically durable silicone-containing epoxy (Si-Epoxy) and proton conducting sulfonic polyimide (SPI). A charge-transfer (CT) complex is formed between electron-donating dihydroxynaphthalene units in Si-Epoxy, and electron-accepting naphthalenediimide units in SPI, as confirmed via X-ray diffraction and visible spectroscopy. The blend membranes show comparable mechanical strength to Nafion 211, but the elongation to break is much lower, indicating better resistance to deformation under strain stress, attributed to CT complex formation. The chemical durability of the blend membranes was much higher than pure SPI according to Fenton's test, also attributed to CT complex formation. Meanwhile, the proton conductivity is dependent on the sulfonic acid content of the SPI, which in turn affects the fuel cell performance. The maximum proton conductivity was measured to be 23.1 mS cm(-1) at 80 degrees C and 90 %RH for a 1:1 blend, and the membranes were successfully incorporated into PEFCs.

引用

页数：13

共 49 条

[1] Sulfonated Poly(arylene ether sulfone ketone) Multiblock Copolymers with Highly Sulfonated Block. Synthesis and Properties [J].