Synthesis of tantalum multiple oxides from new halogen-free aqueous tantalum solution

Kohtaro Yoshioka, Motohiro Adachi, Petrykin Valery, Masato Kakihana

    Research output: Contribution to journalArticlepeer-review


    Conventional usage of TaCls in the polymerizable complex (PC) method results in the corrosion of experimental equipment and degradation of functional properties of the obtained materials due to the residual chloride. In this report ammonium and guanidine salts of tantalum-citric acid complex were used as soluble tantalum compounds. Four tantalum containing complex oxides (NaTaO 3, SrTa2O6, Sr2Ta4O 7 and Sr5Ta4O15) were successfully synthesized by PC method using these chloride-free precursors.

    Original languageEnglish
    Pages (from-to)10-15
    Number of pages6
    JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
    Issue number1
    Publication statusPublished - 2005 Jan


    • Aqueous solution
    • Solution technique
    • Tantalite
    • Water solution

    ASJC Scopus subject areas

    • Mechanical Engineering
    • Industrial and Manufacturing Engineering
    • Metals and Alloys
    • Materials Chemistry


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