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  • 标题:Freeze dried precursor-based synthesis of molybdenum bimetallic nitride
  • 本地全文:下载
  • 作者:EL Himri M. ; EL Himri A. ; Núñez N.
  • 期刊名称:Journal of Materials and Environmental Science
  • 印刷版ISSN:2028-2508
  • 出版年度:2011
  • 卷号:2
  • 期号:1
  • 页码:18-23
  • 出版社:University of Mohammed Premier Oujda
  • 摘要:The molybdenum bimetallic nitride MnMoN2has been synthesized by ammonolysis of the stoichiometric amorphous precursor, obtained by freeze drying o f aqueous solutio ns of the appropriate metal salts. The compound has been characterized by elemental analysis, energy-dispersive analysis of X-rays, X-ray diffraction, scanning electron microscopy, and thermogravimetry analysis under an oxygen atmosphere. MnMoN2crystallize in the hexago nal unit cell isostructural with β-MnWN2with a = 2.9226(6) ., c = 10.8563(8) ... It is stable under oxygen atmosphere up to 250 °C, the oxidation of the bulk reverting to the MnMoO4oxide being complete at 530 °C.
  • 关键词:Freeze; dried precursor; Metallic nitride; Molybdenum; Manganese
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