A facile method to construct highly efficient methanol resistive polyamide-based proton exchange membrane. (28th September 2016)

• Record Type: Journal Article
• Authors: Ma, Liying; Li, Jing; Cai, Weiwei; Fan, Kun; Jiang, Yao; Cheng, Hansong
• Is Part Of: International journal of hydrogen energy. Volume 41:Number 36(2016)
• Page Start: 16205
• Page End: 16211
• Publication Date: 2016-09-28
• Subjects: Direct methanol fuel cell -- Proton exchange membrane -- Hybrid membrane -- Mechanical strength -- Proton conductive channel; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2016.04.218
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: A highly efficient methanol resistive organic–organic hybrid polyamide proton exchange membrane was prepared via a facile method and the proton conductive channels (PCCs) in the membrane were optimized to adjust the proton conductivity, mechanical stability and methanol permeability. The hybrid membrane with the optimized PCCs exhibits remarkable proton conductivity of 0.232 S/cm at 80 °C, much higher than the value of a Nafion 117 membrane (0.192 S/cm). At the same time, the methanol permeability of the optimized membrane becomes as low as 6.21 × 10 −7 cm 2 /s, one order of magnitude smaller than that of the Nafion 117 membrane. The tensile strength of the membrane is 13 MPa, comparable to that of the Nafion 117 membrane. This hybrid membrane is therefore promising for applications in direct methanol fuel cell (DMFC). Highlights: A facile method to adjust the proton conductive channel. Great proton conductivity and methanol permeation resistivity were obtained. Mechanical strength can be improved.