The effect of A-site cation (Ln = La, Pr, Sm) on the crystal structure, conductivity and oxygen reduction properties of Sr-doped ferrite perovskites
By Ren, Yaoyu; Küngas, Rainer; Gorte, Raymond J. & Deng, Changsheng
Published in Solid State Ionics
NULL
2012
Abstract
The influence of A-site cation (Ln = La, Pr, Sm) on the crystal structure of Sr-doped ferrite perovskites (Ln0.8Sr0.2FeO3 − δ, LnSF) was studied and the results used to interpret the differences in electronic conductivity. The electronic conductivity decreased with decreasing A-site cation radius, i.e. in the order La > Pr > Sm between 573 K and 1173 K, whereas the ionic conductivity increased in the order La < Sm < Pr between 923 K and 1073 K. The ionic conductivity of Pr0.8Sr0.2FeO3 − δ (PSF) was more than one order of magnitude higher than that of La0.8Sr0.2FeO3 − δ (LSF) at 973 K.
Microsoft is Ending Support for Windows 7
Microsoft will discontinue support for Windows 7 on January 14, 2020 which means Gamry will also be discontinuing support for Windows 7. If you are upgrading to Windows 10, like many companies and institutions, you need to be running Version 7 of our s oftware . Please note that only USB and Ethernet-based instruments can run in Version 7. Eligible users can download the latest version of our software through our online Client Portal .
If you haven't already registered your instrument, you can do so through the Client Portal .
Please email Technical Support if you have any questions regarding this transition. Please be sure to include your instrument model and serial number when contacting us.