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CoNi Nanowires Synthesized by Heterogeneous Nucleation in Liquid Polyol
Author(s) -
Ung D.,
Viau G.,
Ricolleau C.,
Warmont F.,
Gredin P.,
Fiévet F.
Publication year - 2005
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200400915
Subject(s) - materials science , polyol , nucleation , nanowire , chemical engineering , nanotechnology , organic chemistry , composite material , polyurethane , chemistry , engineering
Magnetic cobalt/nickel nanowires with high coercivity at room temperature have been prepared by reduction in liquid polyol using heterogeneous nucleation. Anisotropic growth is controlled by a high number of ruthenium seeds and an appropriate sodium hydroxide concentration. Growth occurs preferentially along the c ‐axis for low sodium hydroxide concentrations, giving wires (see Figure), and platelets perpendicular to the c ‐axis at high concentrations.