Synthesis of binary magnesium-transition metal oxides via inverse coprecipitation

Shunsuke Yagi, Yuya Ichikawa, Ikuya Yamada, Takayuki Doi, Tetsu Ichitsubo, Eiichiro Matsubara

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)


Synthesis of binary magnesium-transition metal oxides, MgM2O4 (M: Cr, Mn, Fe, Co) and MgNiO2, was performed by calcination at relatively low temperatures of 500 and 750 °C for 24 h through inverse coprecipitation of carbonate hydroxide precursors. The important roles of the precipitation agent, sodium carbonate, were clarified by considering equilibria in an aqueous solution. The structure parameters of the obtained binary magnesium-transition metal oxide powders, specifically the occupancy of atomic sites, were evaluated from synchrotron X-ray diffraction (XRD) profiles by Rietveld refinement in addition to the magnetic properties at room temperature. The present work provides general guidelines for lowcost and high-volume synthesis of complex oxides, which are easily decomposed at high temperatures.

Original languageEnglish
Article number025501
JournalJapanese Journal of Applied Physics
Issue number2
Publication statusPublished - 2013 Feb


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