| 초록 |
The proton conductors, SiO2-P2O5-TiO2-PWA and SiO2-P2O5-TiO2-imidazol membrane, were prepared by sol-gel technique. Proton(H+) transport in solids has attracted much attention because of its potential use in clean energy fields, such as fuel cell, batteries and sensors. Tetraethoxysilane(TEOS), Trimethylphosphate(TMP), Titanium tetrabutoxide(TBOTi), Phosphotungstic acid(PWA) and imidazol were used as precusors of proton conducting membranes. The structural analysis of membranes have been studied by Fourier transform infrared spectroscopy (FTIR), X-ray diffractionl(XRD), differential thermal analysis (DTA) and thermal gravimetric analysis (TGA). The proton conductivity of SiO2-P2O5-TiO2-PWA and SiO2-P2O5-TiO2-imidazol membranes show 2.22×10-4 Scm-1 , 3.94×10-4 Scm-1 and a maximum power density value of those were found to exihibite 0.12 mW/cm2, 0.17mW/cm2 under humidified atmosphere respectively. |
