複合酸化物粒子の製造方法、複合酸化物粉末、分散液及びコンデンサ用誘電体

Japanese Patent JP6972748

B2

To produce a composite oxide particle that has a ratio (A/M) of an element A to an element M approaching 1 being ideal as a perovskite type crystal and at the same time has an extremely small average crystallite diameter.SOLUTION: A method for producing a composite oxide particle including one or more kinds of element A selected from Ba, Sr, Ca, Mg, Al, Pb, Co and Zn and one or more kinds of element M selected from Ti, Zr, W, Nb, Hf and Sn and having a perovskite type crystal phase composed of the element A, the element M and oxygen comprises: a first step of mixing a precursor including the element A and a precursor including the element M so that the element A is excessive to a theoretical composition to produce a reaction solution; a second step of subjecting the reaction solution to a solvothermal method to produce a synthetic solution including solid matter; and a third step of treating the solid matter with an acidic solution having a concentration of less than 5 mass% to produce a composite oxide particle.SELECTED DRAWING: Figure 1

Ritsuko Yamauchi
Masanori Yamazaki
Atsushi Takagi
Yuichi Kato

JP2017151148A

November 24, 2021

August 03, 2017

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Mitsubishi Chemical Corporation

C01G23/00; C01G19/00; C01G21/00; C01G25/00; C01G33/00; C01G41/00; C01G51/00; H01G4/12

JP2007137759A
JP2011079720A
JP2017186250A

CN103739008A
CN102234133A

Nanotechnology,2012年,Vol. 23,Article No. 025702, pp. 1-10

Noriyuki Yamamoto
Akihiko Yamashita
Kishimoto Tatsuto

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