Synthesis of Fine Iron–Cobalt Alloy Particles by the Co-Reduction of Precursors with Solvated Electrons in Sodium–Ammonia Solution

  • Terakado Osamu
    Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University
  • Hirasawa Masahiro
    Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University
  • Uno Yuichiro
    Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University

Bibliographic Information

Other Title
  • Synthesis of Fine Iron–Cobalt Alloy Particles by the Co-Reduction of Precursors with Solvated Electrons in Sodium–Ammonia Solution
Published
2014
DOI
  • 10.2320/matertrans.m2013375
Publisher
The Japan Institute of Metals and Materials

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Description

Fine iron–cobalt alloy particles were synthesized by the co-reduction of their precursors with sodium in liquid ammonia. The reaction took place instantaneously because of the highly reductive solvated electrons. Very reactive, fine particles of the order of ∼10 nm size were obtained. Annealing process is crucial for the magnetic properties of the products, the saturation magnetization being ranging from 29 to 238 A·m2·kg−1. One spot reduction with solvated electrons and the consequent annealing treatment in the synthesis vessel has potential ability for the synthesis of a variety of metal and alloy particles.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 55 (3), 517-521, 2014

    The Japan Institute of Metals and Materials

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