抄録
High proton conducting P2O5-SiO2-TiO2 glasses were prepared by sol-gel method. Structural analysis were carried out using X-ray, FTIR spectroscopy, thermal stability, pore properties and proton conductivity. The X-ray diffraction spectra indicated that the non-crystalline phase of P2O5-SiO2-TiO2 glasses. Formation of Si-O-Si, P-O-Ti and Si-O-P bonds observed from FTIR spectra for the glass powder. The conductivity of P2O5-SiO2-TiO2 glasses were found in the range of 10-2 to 10-3 cm-1 in humidity (30 to 90 %) and temperature (30 to 90 degree celcius) conditions. A low temperature H2/O2 fuel cell based on glass as an electrolyte was realized. The electrochemical activity was investigated by polarization curves and open circuit voltage. An output power density of approximately 8 mW/cm2 was obtained at 30 degree celcius with relative humidity and 1 atm. The cell performance is mainly determined by the high conductivity characteristics of the electrolyte with modified electrodeKeywords: Sol-gel, TiO2, proton conductivity, power density
