论文部分内容阅读
Nafion/Silicon oxide composite membranes were produced via in situ sol-gel reaction of tetraethylorthosilicate (TEOS) in Nafion membranes. The physicochemical properties of the membranes were studied by FT-IR,TG-DSC and tensile strength. The results show that the silicon oxide is compatible with the Nafion membrane and the thermo stability of Nafion/Silicon oxide composite membrane is higher than that of Nafion membrane. Furthermore,the tensile strength of Nafion/Silicon oxide composite membrane is similar to that of the Nafion membrane. The proton conductivity of Nafion/Silicon oxide composite membrane is higher than that of Nafion membrane. When the Nafion/Silicon oxide composite membrane was employed as an electrolyte in H2/O2 PEMFC,a higher current density value (1 000 mA/cm2 at 0.38 V) than that of the Nafion1135 membrane (100 mA/cm2 at 0.04 V) was obtained at 110 ℃.
Nafion / Silicon oxide composite membranes were produced via in situ sol-gel reaction of tetraethylorthosilicate (TEOS) in Nafion membranes. The physicochemical properties of the membranes were studied by FT-IR, TG-DSC and tensile strength. The results show that the silicon oxide is compatible with the Nafion membrane and the thermo stability of Nafion / Silicon oxide composite membrane is higher than that of Nafion membrane. Furthermore, the tensile strength of Nafion / Silicon oxide composite membrane is similar to that of the Nafion membrane. The proton conductivity When the Nafion / Silicon oxide composite membrane was employed as an electrolyte in H2 / O2 PEMFC, a higher current density value (1000 mA / cm2 at 0.38 V) than that of the Nafion 1135 membrane (100 mA / cm2 at 0.04 V) was obtained at 110 ° C.