Novel chitosan/phosphotungstic acid composite membranes (smpCTS/HPW) are prepared.
The smpCTS/HPW membranes remain excellent methanol-blocking property.
The 40%-smpCTS/HPW membrane exhibits maximum conductivity of 29 mS/cm.
DMFC with 40%-smpCTS/HPW showsa peak power density of 16 mW/cm2 at 80 °C.