Abstract
A method for the preparation of amorphous Ni powder with particle size of about 10 nm is reported. The sonolysis was performed on neat Ni(CO) 4 and on its solution in decane. The nickel nanoparticles were subjected to scanning and transmission electron microscopy, differential scanning calorimetry, thermogravimetric analysis, X-ray diffraction and SQUID magnetization measurements. These measurements confirm the amorphous state of the particles.
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