SYNTHESIS AND ANALYSIS OF Lao.9MnO3 BY COMBUSTION METHOD

  • BI Ita Chemistry Department, University Of Calabar, Calabar, Crs, Nigeria.
  • CA Edem Chemistry Department, University Of Calabar, Calabar, Crs, Nigeria.
Keywords: La<sub>o.9</sub>MnO<sub>3</sub>, acetylacetonate, nanopolycrystalline, combuston method, semi-conductor

Abstract

The Lao.9MnO3 has been synthesized from lanthanum acetylacetonate, manganese acetylacetonate and urea by combustion method at 800oC. The analysis of the synthesized Lao.9MnO3 show it to be a semi-conducting nanopolycrystalline material having orthorhombic geometry with unit-cell parameters: a = 5.50335Ao; b = 5.7250Ao; c = 7.70028Ao and with Mn4+ content of 12%. The mean-size of the particles of Lao.9MnO3 was obtained from TEM analysis at 80nm.

KEY WORDS: Lao.9MnO3, acetylacetonate, nanopolycrystalline, combuston method, semi-conductor.

Global Jnl Pure & Applied Sciences Vol.10(1) 2004: 121-124

Published
2004-05-25
Section
Articles

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eISSN: 1118-0579