Water soluble Na[Nb(O2)3] 2H2O as a new molecular precursor for synthesis of sodium niobate

Deepa Dey, Valery Petrykin, Satoshi Sasaki, Masato Kakihana

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A water-soluble tetraperoxo niobate [Nb (O2)4] 3- was prepared by reaction of niobic acid with H2O 2 at pH = 11 in aqueous ammonia solution. The corresponding ammonium salt, (NH4)3[Nb(O2)4], was grown as a single crystal, and its crystal structure was solved. A white precipitate has been obtained from the solution containing (NH4)3[Nb (O2)4] and Na2CO3, Based on the elemental, TG, redox titration and Raman spectroscopic analyses, we have concluded that the obtained compound was Na[Nb (O2) 3]·2H2O. This compound has been demonstrated to be a convenient precursor for synthesis of NaNbO3 by simple calcinations in air at the reduced temperature of 400-500°C.

Original languageEnglish
Pages (from-to)808-812
Number of pages5
JournalJournal of the Ceramic Society of Japan
Volume115
Issue number1348
DOIs
Publication statusPublished - 2007 Dec

Keywords

  • Low-temperature synthesis
  • Sodium triperoxo niobium
  • Tetraperoxo niobium complex
  • Water-soluble molecular precursor

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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