著者

Dey Deepa 垣花 眞人

出版者

公益社団法人日本セラミックス協会

雑誌

日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi (ISSN:18821022)

巻号頁・発行日

vol.112, no.1307, pp.368-372, 2004-07-01

被引用文献数

12

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Powders of LiNbO_3 were synthesized by novel peroxide route based on reaction of niobium peroxide and lithium hydroxide. A pH of 11 was found to provide optimum condition for the formation of peroxo niobium precursor complex [Nb(O_2)_4]^<3->. The replacement of peroxide ligand was favored by increasing the reaction temperature above ambient. This method demonstrated its efficacy in obtaining pure and homogeneous crystalline LiNbO_3 powders at reduced temperature (400℃) without involvement of organic substance. The crystalline phase was characterized via powder X-ray diffraction and Infrared, Raman spectroscopy. SEM micrographs enabled in detecting the formation of inverse opal of LiNbO_3 . For comparison LiNbO_3 was also prepared by amorphous complex method independently and characterized. The peroxide approach presented here gives an alternative for the preparation of multi component oxides free from organics and chlorides.