Rapid synthesis of monodispersed α-Fe2O3 nanoparticles from Fe(NO3)3 solution by microwave irradiation

Hiroaki Katsuki, Atsunori Shiraishi, Sridhar Komarneni, Wan Jin Moon, Shoichi Toh, Kenji Kaneko

    研究成果: ジャーナルへの寄稿学術誌査読

    30 被引用数 (Scopus)

    抄録

    Monodispersed α-Fe2O3 nanoparticles were prepared at 100°, 120°, and 140°C using 0.02, 0.05, and 0.1 M-Fe(NO3)3-9H2O solutions by microwave-hydrothermal (M-H) and conventional-hydrothermal(C-H) reactions. Compared to the formation of monodispersed α-Fe2O3 particles using the C-H reaction, the M-H reaction led to increased rate of formation by 3 times at 120°C and 5 times at 140°C from 0.1 M-Fe(NO 3)3 solutions. α-Fe2O3 nanoparticles of 23-25 nm in diameter were obtained from 0.02 M solution at 100°C after treatment for 4 h by applying microwaves, which led to the formation of smaller sized particles with a narrow particle size distribution. The coagulation of nano-sized single crystals of 5 to 6 nm in diameter was enhanced by increasing the concentration of Fe(NO3)3 solutions.

    本文言語英語
    ページ(範囲)384-387
    ページ数4
    ジャーナルJournal of the Ceramic Society of Japan
    112
    1307
    DOI
    出版ステータス出版済み - 7月 2004

    !!!All Science Journal Classification (ASJC) codes

    • セラミックおよび複合材料
    • 化学一般
    • 凝縮系物理学
    • 材料化学

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