Preparation and conductivity of nanocrystalline rare earth mixed oxides SmFe1-x,CoxO3-δ
来源期刊：Rare Metals2002年第3期
论文作者：REN Yinzhe, LIU Erbao WANG Jianying, and WANG Yuxian Department of Chemistry, Shanxi Normal University, Linfen , China Linfen Normal College of Shanxi Normal University, Linfen , China
文章页码：190 - 192
摘 要：<正>Nanocrystalline rare earth mixed oxides SmFe1-xCoxO3-δ were prepared by sol-gel method at 1 073 K for 2 h calcination and characterized by X-ray diffraction （XRD） and scanning electron microscope （SEM）. The results show that SmFe1-xCoxO3-δ has the structure of perovskite type. The conductivity of the materials increases with the temperature rising and the maximum conductivity at 1 073 K is 2.6 S/cm with the best mole ratio of Fe3+ to Co3+ being 1 : 4. This kind of oxide is a conductive ceramic material by means of conduction of electron and oxygen anion.
REN Yinzhe, LIU Erbao WANG Jianying, and WANG Yuxian Department of Chemistry, Shanxi Normal University, Linfen 041004, China Linfen Normal College of Shanxi Normal University, Linfen 041004, China
摘 要：<正>Nanocrystalline rare earth mixed oxides SmFe1-xCoxO3-δ were prepared by sol-gel method at 1 073 K for 2 h calcination and characterized by X-ray diffraction （XRD） and scanning electron microscope （SEM）. The results show that SmFe1-xCoxO3-δ has the structure of perovskite type. The conductivity of the materials increases with the temperature rising and the maximum conductivity at 1 073 K is 2.6 S/cm with the best mole ratio of Fe3+ to Co3+ being 1 : 4. This kind of oxide is a conductive ceramic material by means of conduction of electron and oxygen anion.
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