Journal
JOURNAL OF CRYSTAL GROWTH
Volume 311, Issue 8, Pages 2474-2479Publisher
ELSEVIER
DOI: 10.1016/j.jcrysgro.2009.02.009
Keywords
Crystal morphology; Growth from solutions; Hydrothermal crystal growth; Metals; Magnetic materials
Funding
- National Natural Science Foundation of China [50574083]
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Metallic Ni powders with different morphologies including icosahedra, microspheres, and flowerlike clusters composed of nanoflakes were successfully fabricated via polyol process. Alkalinity played the key role in the formation of these novel structures. The as-prepared products were characterized by X-ray diffractometry (XRD), field scanning electron microscopy (FESEM), transmission electron microscope (TEM), and selected area electron diffraction (SAED). A layer-by-layer growing process was demonstrated based on the experimental results. Magnetism investigation revealed that icosahedra and clusters exhibited much enhanced coercivity. (c) 2009 Elsevier B.V. All rights reserved.
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