Structural stability and electrical transport in SrFe1-zMozO3-δ
The electrical conductivity and oxygen content in SrFe1-xMoxO3-δ, where x=0.05, 0.1 and 0.2, are studied at 650-950℃ within a wide range of oxygen partial pressure. The partial contributions of ion and electron charge carriers are obtained from the conductivity analysis. At relatively small level, x～0.05, the molybdenum dopant favors enhanced oxygen-ion contribution. Further increase in the dopant content results in deterioration of the oxygen-ion component of conductivity. At the same time, considerable increase of the n-type electron component is observed at x>0.05, which is explained by the involvement of Mo5+cations in electron transport The mobility of n-type electron carriers is found to increase with molybdenum content while the mobility of p-type electron carriers tends to decrease.
Strontium ferrite Perovskite Mized conductor Ozygen non-stoichiometry
A.A.Markov I.A.Leonidov M.V.Patrakeev V.L.Kozhevnikov O.A.Savinskaya U.V.Ancharova A.P.Nemudry
Institute of Solid State Chemistry, Ural Branch of RAS, 91 Pervomaiskaya Street 620219, Ekaterinburg Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of RAS, 18 Kutaleladze Stre
国际会议
The 16th International Conference on Solid State Ionics(第十六届国际固态离子学会议)
上海
英文
1050-1053
2007-07-01（万方平台首次上网日期，不代表论文的发表时间）