Proton Exchange Membrane with Excellent Proton Conductivity and Superior Stability for Application at High Operating Temperatures

Huang, Henghui1,2,3; Zeng, Xiankui1; Zhang, Xiuping1; Li, Hui1

2023-10-25

10.1021/acs.energyfuels.3c03072

ENERGY & FUELS   影响因子和分区

0887-0624

1520-5029

Elevating the operating temperature can effectively improve the electrode reaction and reduce the mass transfer resistance of a fuel cell caused by a double-phase fluid. Here, a copolymer containing imidazole groups and phosphonic acid groups is designed and prepared, and then, a novel proton exchange membrane (PEM) that possesses an interpenetrating polymer network structure and consists of the copolymer and perfluorosulfonic acid (PFSA) is obtained. Owing to the formed acid-base cross-linking structure, the membrane has a more compact structure, and its dimensional stability and gas permeability are significantly improved. The phosphonic acid and imidazole groups with excellent water retention ability improve the continuity of the hydrophilic region of the PEM, and the continuous acid-base pairs weaken the water dependence of proton conductivity; therefore, the prepared PEM exhibits excellent proton conductivity under high temperature conditions. Under high operating temperatures, a single cell based on the prepared PEM exhibits low impedance and excellent polarization performance; hence, it can operate stably above 100 degree celsius. This paper provides a method to prepare an acid-base composite membrane that is promising for application at low humidity and across a range of temperature zones.

SCI ; EI

英语

第一 ; 通讯

Innovation Team of Universities of Guangdong Province[2020KCXTD011] ; Engineering Research Center of Universities of Guangdong Province[2019GCZX002] ; Guangdong Key Laboratory for Hydrogen Energy Technologies[2018B030322005]

Energy & Fuels ; Engineering

Energy & Fuels ; Engineering, Chemical

WOS:001106344800001

AMER CHEMICAL SOC

20234815118843

Composite membranes ; Gas permeability ; Gas permeable membranes ; Mass transfer ; Organic acids ; Proton exchange membrane fuel cells (PEMFC) ; Temperature

Thermodynamics:641.1 ; Mass Transfer:641.3 ; Electricity: Basic Concepts and Phenomena:701.1 ; Fuel Cells:702.2 ; Organic Compounds:804.1 ; Physical Properties of Gases, Liquids and Solids:931.2

ENGINEERING

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
2.Foshan Univ, Sch Mat Sci & Hydrogen Energy, Foshan 528000, Guangdong, Peoples R China
3.Guangdong Key Lab Hydrogen Energy Technol, Foshan 528000, Peoples R China

Huang, Henghui,Zeng, Xiankui,Zhang, Xiuping,et al. Proton Exchange Membrane with Excellent Proton Conductivity and Superior Stability for Application at High Operating Temperatures[J]. ENERGY & FUELS,2023,37(22):17516-17525.

Huang, Henghui,Zeng, Xiankui,Zhang, Xiuping,&Li, Hui.(2023).Proton Exchange Membrane with Excellent Proton Conductivity and Superior Stability for Application at High Operating Temperatures.ENERGY & FUELS,37(22),17516-17525.

Huang, Henghui,et al."Proton Exchange Membrane with Excellent Proton Conductivity and Superior Stability for Application at High Operating Temperatures".ENERGY & FUELS 37.22(2023):17516-17525.