Composite proton exchange membrane for fuel cells based on chitosan modified by acid-base amphoteric nanoparticles

被引：21

作者：

Fan, Xiangjian ^{[1
,2
]}

Ou, Ying ^{[1
]}

Yang, Huiyu ^{[1
]}

Yang, Haiyang ^{[1
]}

Qu, Ting ^{[1
]}

Zhang, Quanyuan ^{[2
]}

Cheng, Fan ^{[1
]}

Hu, Fuqiang ^{[1
]}

Liu, Hai ^{[1
]}

Xu, Zushun ^{[2
]}

Gong, Chunli ^{[1
]}

机构：

[1] Hubei Engn Univ, Hubei Engn & Technol Res Ctr Funct Mat Biomass, Sch Chem & Mat Sci, Xiaogan 432000, Hubei, Peoples R China

[2] Hubei Univ, Sch Mat Sci & Engn, Key Lab Green Preparat & Applicat Funct Mat, Minist Educ,Hubei Key Lab Polymer Mat, Wuhan 430062, Peoples R China

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2024年 / 254卷

关键词：

Proton exchange membrane; Chitosan; Zwitterionic molecules; COATED CARBON NANOTUBES; NANOCOMPOSITE MEMBRANES; PHOSPHOTUNGSTIC ACID; PERFORMANCE; TRANSPORT;

D O I：

10.1016/j.ijbiomac.2023.127796

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Currently, achieving a simultaneous improvement in proton conductivity and mechanical properties is a key challenge in using chitosan (CS) as a proton exchange membrane (PEM) substrate in direct methanol fuel cells (DMFCs). Herein, a novel nanofiller-zwitterionic molecule, (3-(3-aminopropyl) dimethylammonio) propane-1-sulfonate, ADPS)-modified polydopamine (PDA) (PDA-ADPS) was synthesized by the Michael addition reaction and was incorporated into a CS matrix to prepare CS/PDA-ADPS composite membranes. PDA-ADPS, which contains an acid-based ion pair can create new proton conduction channels in the composite membrane, improving proton conductivity. The proton conductivity of the CS/PDA-ADPS composite membrane was as high as 38.4 mS cm-1 at 80 degrees C. Moreover, due to the excellent compatibility and dispersibility of PDA-ADPS in the CS matrix, the obtained CS/PDA-ADPS composite membranes exhibited favorable mechanical properties. Such outstanding proton conductivity and mechanical properties guarantee good performance of the composite membranes in fuel cells. The peak power density of the CS/PDA-ADPS composite membranes was 30.2 mW cm-2 at 70 degrees C. This work provides a new strategy for fabricating high-performance CS based PEMs for DMFCs.

引用

页数：10

共 47 条

[1] Preparation and performance of nanoparticle-reinforced chitosan proton-exchange membranes for fuel-cell applications [J].