Oxygen permeability of Sr1-x Ce x Co0.2Fe0.8O3-δ ceramic membranes |
| |
| Authors: | V. V. Vashuk S. I. Pytlev O. P. Ol’shevskaya L. V. Kokhanovskii E. I. Shkol’nikov N. V. Saratovskaya V. V. Volkov |
| |
| Affiliation: | (1) Institute of General and Inorganic Chemistry, Belarussian Academy of Sciences, ul. Surganova 9, 220072 Minsk, Belarus;(2) Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 117912 Moscow, Russia |
| |
| Abstract: | Sr1-x Ce x Fe0.8Co0.2O3-δ (x = 0, 0.05, 0.10, 0.15) ceramics were prepared by solid-state reactions, and their oxygen permeability was measured as a function of cerium content and membrane thickness at temperatures from 400 to 1000‡C and oxygen partial pressures from 102 to 105 Pa. The oxygen permeability of the ceramics was found to decrease systematically with increasing Ce content. The oxygen transport was shown to be limited by volume diffusion. Doping of the ceramics with 20 wt % Ag notably improves their cracking resistance during thermal cycling. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
