Bulletin of the Korean Chemical Society

  • 제9권5호
  • /
  • Pages.283-288
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  • 1988
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  • 0253-2964(pISSN)
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  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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Stoichiometry, Thermal Stability and Reducibility of Perovskite-Type Mixed Oxide LaBO$_3$ (B = Fe, Co, Ni)

  • Park, Il-Hyun (Department of Chemistry, Sung Kyun Kwan University, Natural Science Campus) ;
  • Lee, Hyung-Pyo (Department of Chemistry, Sung Kyun Kwan University, Natural Science Campus)
  • 발행 : 1988.10.20
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초록

The titled properties on reduction of the perovskite $LaBO_3$ (B = Fe, Co, Ni) have been investigated by means of temperature-programmed reduction, isothermal reduction and X-ray diffraction methods. Nominal composition of $LaFeO_{3.18},\;LaCoO_{3.00}\;and\;LaNiO_{2.92}$ are determined. Reduction reaction of these mixed oxides differed according to B-site transition metal and thermal stability on reduction decreased as following order: $LaFeO_{3.18}$ > $LaCoO_{3.00}$ > $LaNiO_{2.92}$. From the results of isothermal reaction, kinetics on reduction of the perovskite has been discussed in detail.

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피인용 문헌

  1. Oxygen nonstoichiometry, defect structure and electrical properties of LaFe0.7Ni0.3O3−δ vol.191, pp.1, 1988, https://doi.org/10.1016/j.ssi.2011.03.023
  2. New simple La‐Ni complexes as efficient precursors for functional LaNiO3‐based ceramics vol.36, pp.2, 1988, https://doi.org/10.1002/aoc.6519