Preparation of sol-gel method P2O5-Al2O3-SiO2 glasses and their characterization |
| |
Authors: | T. Uma K. Hattori M. Nogami |
| |
Affiliation: | (1) Department of Materials Science and Engineering, Nagoya Institute of Technology, Showa, 466-8555 Nagoya, Japan |
| |
Abstract: | Nanostructures P2O5-Al2O3-SiO2 glasses were prepared by sol-gel method. The glasses were characterized by XRD, FTIR and TG/DTA methods. The average pore size of the glass was less than 3 nm as measured by N2 adsorption — desorption method. The thermal stability was measured as a function of decomposition temperature and weight loss calculations. Proton conductivities of all samples increased with an increase in relative humidity (40–90 %), indicating that continuous paths suitable for proton conduction were developed when glasses heat treated at 300 °C due to the adsorption of water. The temperature dependence of the conductivity for all compositions increases with increasing temperature in the range 30–90 °C with relative humidity 70 %. The overall conductivity was in the range 10−4–10−3 S/cm for compositions. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|