Synthesis of Manganite Perovskites by Reverse Homogeneous Precipitation Method in the Presence of Alkylammonium Cations

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  • Teraoka Yasutake
    Department of Applied Chemistry, Faculty of Engineering, Nagasaki University
  • Nanri Shinichi
    Department of Applied Chemistry, Faculty of Engineering, Nagasaki University
  • Moriguchi Isamu
    Department of Applied Chemistry, Faculty of Engineering, Nagasaki University
  • Kagawa Shuichi
    Department of Applied Chemistry, Faculty of Engineering, Nagasaki University
  • Shimanoe Kengo
    Department of Molecular and Material Sciences, Graduate School of Engineering Sciences, Kyushu University
  • Yamazoe Noboru
    Department of Molecular and Material Sciences, Graduate School of Engineering Sciences, Kyushu University

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Description

A single-phase LaMnO3+δ perovskite with high surface area could be synthesized after air-calcining the hydroxide precursor at 650 °C and above. The precursor was easily obtained by dropping a mixed aqueous solution of La and Mn nitrates into highly basic aq. NH3 with and without the presence of N(CH3)4Br. The addition of N(CH3)4Br was effective in increasing the specific surface area of the products as well as in stabilizing the colloidal solution of the hydroxide precursor.

Journal

  • Chemistry Letters

    Chemistry Letters 29 (10), 1202-1203, 2000

    The Chemical Society of Japan

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