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Preparation of cobalt doped γ-Fe2O3 and Mn-Zn ferrites by the thermal decomposition of the hydrazine precursors

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Abstract

Fine particle cobalt dopedγ-Fe2O3 and Mn-Zn ferrites have been prepared by the thermal decomposition of N2H5Co x Fe1−x (N2H3COO)3.H2O wherex=1–10 atom% and (N2H5)3MnxZn1−x Fe2(N2H3COO)9· 3H2O wherex=0.2–0.8, respectively. Formation of these oxide materials has been confirmed by thermogravimetry and X-ray powder diffraction patterns. The fine particle nature of these oxide materials is evident from particle size analysis and surface area measurements.

Zusammenfassung

Mit fein verteiltem Kobalt versetztesγ-Fe2O3 sowie Mn-Zn Ferrite wurden durch thermische Zersetzung von N2H5Co x Fe1−x (N2H3COO)3·H2O mit jc=1–10 Atomprozent bzw. (N2H5)3Mn x Zn1−x Fe2(N2H3COO)9·3H2O mitx=0,2–0,8 hergestellt. Die Bildung dieser Oxidstoffe wurde durch Thermogravimetrie und Pulverdiffraktionsmethoden bekräftigt. Die Feinkornstruktur dieser Oxidstoffe wird durch Korngrößenverteilungs- und Oberflächenmessungen augenscheinlich.

Резюме

Термическим разложе нием соединений N2H5Co x Fe1−x (N2H3COO)3·H2O, гдеx-1–10 атомных%, и (N2H5)3Mn x Zn1−x Fe2(N2H3COO)9 · 3H2O, гдеx=0,2–0,8, были получены, соответственно, леги рованный кобальтом порошкообразныйγ-Fe2O3 и Mn-Zn ферриты. Образование таких ок сидных материалов бы ло подтверждено термог равиметрией и порошковым рентгено структурным анализо м. Тонкопорошковая при рода этих оксидных материалов доказана ситовым анализом и из мерением площади поверхности.

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Suresh, K., Mahesh, G.V. & Patil, K.C. Preparation of cobalt doped γ-Fe2O3 and Mn-Zn ferrites by the thermal decomposition of the hydrazine precursors. Journal of Thermal Analysis 35, 1137–1143 (1989). https://doi.org/10.1007/BF01913031

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