Synthesis and microstructure of calcia doped ceria as UV filters

M. Yamashita, K. Kameyama, S. Yabe, S. Yoshida, Y. Fujishiro, T. Kawai, T. Sato

    研究成果: Article査読

    136 被引用数 (Scopus)

    抄録

    Fine particles of calcium oxide doped cerium dioxide, 2-4 nm in diameter, were prepared by the chemical reaction of CeCl3-CaCl2 mixed aqueous solution and NaOH aqueous solution at pH 6-12 and 40°C followed by the oxidation with hydrogen peroxide. Doping of CaO with CeO2 resulted in decreasing the particle size and consequently, increasing UV shielding efficiency and transparency to visible light. The particle shape of ceria changed significantly depending on the reaction condition, i.e., rod-like particles and spherical particles were formed by the H2O2 oxidation of cerium trihydroxide pH above 8 and below 7, respectively.

    本文言語English
    ページ(範囲)683-687
    ページ数5
    ジャーナルJournal of Materials Science
    37
    4
    DOI
    出版ステータスPublished - 2002 2月 15

    ASJC Scopus subject areas

    • 材料科学(全般)
    • 材料力学
    • 機械工学

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