A proton-conducting composite membrane Sn0 95Al0 05P2O7 and polystyrene-b-poly(ethylene/propylene)-b-polystyrene

作者：Jin Yongcheng; Hibino Takashi^*

来源：Electrochimica Acta, 2010, 55(28): 8371-8375.

DOI：10.1016/j.electacta.2010.07.043

• Composite membrane
• Anhydrous proton conductor
• Proton exchange membrane fuel cells
• High-temperature operation
• Low humidity operation

An anhydrous proton conductor Sn0 95Al0 05P2O7 (SAPO) composed of polystyrene-b-poly(ethylene/propylene)-b-polystyrene (SEPS) was developed and chai acterized 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 mu m yielding a proton conductivity of 3 4 x 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

• 出版日期2010-12-1