Nafion-1,2,3-Triazole Composite Membrane for Fuel Cell

Abstract

The mechanical stability of Nafion -1,2,3-triazole composite membrane and conductivity and cell performance in the single cell were investigated by dynamic elastic modulus and fuel cell measurement system, respectively. The thermal stability of the composite membrane was increased than that of Nafion 112. The viscosity was also improved after activation treatment of the membrane. The maximum conductivity of 0.07 S/cm and maximum power density of 582 mW/cm 2 were obtained at the single cell test. A long term stability of around 140 h was obtained at the high cell temperature of 100 o C and low RH = 30 %.

Nafion-Propyl-1,2,3-Triazole Composite Membrane for Fuel Cells

“…On the other hand, we z E-mail: kim.jedeok@nims.go.jp found that Nafion -1,2,3-triazole composite membranes are stable even against treatment with boiling water and sulfuric acid. 26,28 Under autoclave conditions, 1,2,3-triazole can react with 1-and 2-propanol contained in Nafion solution due to the catalytic effect of the Nafion acid side chain, leading to Nafion -propyl-1,2,3-triazole composites (Scheme 1). In this paper, Nafion -propyl-1,2,3-triazole composite membrane was prepared and characterized in detail by FT-IR, MAS NMR, TGA, dynamic elastic modulus, TEM, elementary analysis, water-uptake, ion exchange capacity (IEC), conductivity, and cell performance.…”