کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1488524 | 1510725 | 2014 | 5 صفحه PDF | دانلود رایگان |
• A new honeycomb ordered layered oxide Na3LiFeSbO6 was synthesized.
• This compound crystallizes in the C2/c space group.
• Disorder in the honeycomb arrangement of Li and Fe is present.
A new compound Na3LiFeSbO6 has been synthesized by conventional solid state methods and investigated using X-ray diffraction, DC magnetic susceptibility, 57Fe Mössbauer spectroscopy and optical measurements. This compound crystallizes in a monoclinic unit cell and is related to a family of honeycomb ordered layered oxide materials where Na+ fills octahedral interlayer sites between Li1/3Fe1/3Sb1/3O2 slabs of edge sharing octahedra. Each SbO6 octahedron is surrounded by LiO6 and FeO6 octahedra creating a honeycomb arrangement within the slabs. Powder X-ray diffraction indicates the presence of stacking faults. This compound exhibits Curie–Weiss behavior at high temperatures and the effective magnetic moment verifies the presence of high spin Fe3+. The 57Fe Mössbauer spectroscopy confirms Fe3+ in an octahedral position and indicates disorder in the arrangement of LiO6 and FeO6 octahedra in the Li1/3Fe1/3Sb1/3O2 slabs.
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Journal: Materials Research Bulletin - Volume 50, February 2014, Pages 292–296