A Review on the Fabrication of Electrospun Polymer Electrolyte Membrane for Direct Methanol Fuel Cell
Table 10
Summary of electrospinning parameters on electrospun nanofibers membrane in fuel cell application.
Polymer
Support material
Type of fuel cell
Electrospinning parameters
Remark
Ref.
Polyvinyl alcohol, PVA
Nafion
Direct methanol Fuel cell (DMFC)
Distance from needle to collector: 20 cm Solution flow rate: 1.2 mL/h Voltage potential: 20 kV I.D. needle: 0.8 mm Collector: copper collection roll
More straight and less tortuous effect on Nafion/PVA nanofiber which leads to increase in proton conductivity of the membrane and reduction in membrane crossover with a thickness of ~50 m
Distance from needle to collector: 10 cm Voltage potential: 15 kV I.D. needle: 0.15 mm Humidity: below 15% RH
Thickness of SiO2/SPEEK nanofiber membrane 45 m incorporation with Nafion produces high proton conductivity compared to cast Nafion and SPEEK. The maximum power density of SiO2/SPEEK incorporation with Nafion is 170 mW/cm3 double than cast Nafion
Distance from needle to collector: 25 cm Solution flow rate: 0.5 ml/h Voltage potential: 16 kV
Succeeds in producing PVA nanofiber having diameter of 200–300 nm Contribution of Nafion as support material has indeed increased the mechanical and thermal properties of the composite membrane with thickness of composite membrane at 46–47 m PVA nanofibers have indeed increased the barrier properties on methanol crossover
Distance from needle to collector: 15 cm Voltage potential: 19 kV Collector: rotating cylindrical stainless steel
Proton conductivity of the bilayer SPES/Nafion barely changes compared to the Nafion 117/112 The methanol crossover is reduced due to the SPES nanofibers within Nafion matrices
