کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1332735 | 979052 | 2008 | 6 صفحه PDF | دانلود رایگان |
ZnFe2O4ZnFe2O4 has a spinel-type structure with Zn2+Zn2+ ions located mainly on tetrahedral sites and Fe3+Fe3+ ions located on octahedral sites. ZnFe2O4ZnFe2O4 was synthesized in air by a solid state reaction and characterized with X-ray diffraction, high temperature neutron diffraction, resistivity measurements and dilatometry. The distribution of cations in ZnFe2O4ZnFe2O4 was measured from 298 to 1243 K and results show that above 673 K the cations start to redistributed in the structure. ZnFe2O4ZnFe2O4 has a semi-conducting behavior at room temperature, but at temperatures above 905 K the conductivity decreases as the result of an Fe–Fe interaction between octahedral sites.
High temperature in situ neutron powder diffraction, dilatometry and resistivity measurements was performed on the spinel-type oxide ZnFe2O4ZnFe2O4.Figure optionsDownload as PowerPoint slide
Journal: Journal of Solid State Chemistry - Volume 181, Issue 9, September 2008, Pages 2364–2369