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Nanometer‐Sized Nickel Hollow Spheres
Author(s) -
Liu Q.,
Liu H.,
Han M.,
Zhu J.,
Liang Y.,
Xu Z.,
Song Y.
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.200500174
Subject(s) - nickel , materials science , spheres , nanometre , coercivity , hydrothermal circulation , nanotechnology , chemical engineering , metallurgy , composite material , condensed matter physics , physics , astronomy , engineering
Hollow nickel spheres of 50–60 nm diameter have different properties from bulk nickel. For example, the authors demonstrate that the spheres exhibit a long‐range magnetic‐ordering transition at 575 K and enhanced coercivity. The facile synthesis of such spheres by mild hydrothermal redox reaction of nickel dodecylsulfate with NaH 2 PO 2 (see Figure) is described.