Abstract
An anhydrous proton conductor, Sn 0.95Al 0.05P 2O 7 (SAPO), composed of polystyrene-b-poly(ethylene/propylene)-b-polystyrene (SEPS), was developed and characterized using morphological, structural, and electrochemical analyses. In the composite membrane with 20 wt% SEPS, a homogeneous distribution of SAPO particles in the matrix was obtained in the thickness range of 65–90 μm, yielding a proton conductivity of 3.4 × 10 −3 S cm −1 at 200 °C, tensile strength of 4.6 MPa and an elongation at break of 711.0% at room temperature. Fuel cell tests verified that the open-circuit voltage was maintained at a constant value of approximately 1 V between 100 and 250 °C. The peak power densities achieved with unhumidified H 2 and air were 77.0 mW cm −2 at 100 °C, 121.0 mW cm −2 at 150 °C, and 163.1 mW cm −2 at 225 °C.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call