Cellulose nanofiber-embedded sulfonated poly (ether sulfone) membranes for proton exchange membrane fuel cells

被引：91

作者：

Xu, Xianlin ^{[1
,2
]}

Li, Rui ^{[2
]}

Tang, Chenxiao ^{[1
]}

Wang, Hang ^{[1
,2
]}

Zhuang, Xupin ^{[1
,2
]}

Liu, Ya ^{[1
]}

Kang, Weimin ^{[1
,2
]}

Shi, Lei ^{[1
]}

机构：

[1] Tianjin Polytech Univ, Natl Ctr Int Joint Res Separat Membranes, State Key Lab Separat Membranes & Membrane Proc, Tianjin 300387, Peoples R China

[2] Tianjin Polytech Univ, Coll Text, Tianjin 300387, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2018年 / 184卷

基金：

中国国家自然科学基金;

关键词：

Proton exchange membrane; Cellulose nanofiber; Proton conductivity; Water uptake; POLY(ETHER SULFONE); CONDUCTIVITY; FIBERS; NANOCOMPOSITE; PERFORMANCE;

D O I：

10.1016/j.carbpol.2017.12.074

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Cellulose nanofibers were embedded into sulfonated poly (ether sulfone) matrix to heighten the water retention and proton conductivity of proton exchange membranes (PEMs). Cellulose nanofibers were obtained by hydrolyzing cellulose acetate nanofibers, which were prepared via electrostatic-induction-assisted solution blow spinning. Morphology, thermal stability, and mechanical properties of the PEMs were investigated. The results showed that proton conductivity, water uptake, and methanol permeability of the composite membranes were improved. Hydrophilicity of the composite membranes was gradually improved with the addition of nanofibers. When the content of nanofibers was 5 wt%, the highest proton conductivity was 0.13 S/cm (80 degrees C, 100% RH). Therefore, the cellulose nanofiber could be used as support materials to enhance the performance of proton exchange membranes, the composite membranes have potential application in Direct methanol fuel cells (DMFCs).

引用

页码：299 / 306

页数：8

共 45 条

[1] Development and characterization of sulfonated poly(ether sulfone) for proton exchange membrane materials [J].