Record number :
Title of article :
Characterization of binary gold/platinum nanoparticles prepared by sonochemistry technique
Author/Authors :
M. Nakanishi، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Pages :
From page :
To page :
Abstract :
Aqueous solutions with Au3+and Pt4+ ions and additives of surfactants (SDS or PEG-MS) were irradiated with an ultrasound at 200 kHz with an input power of 4.2 W/cm2, and colloidal nanoparticles were prepared. The prepared nanoparticles were characterized by XRD, TEM, HRTEM, EDX and 197Au Mo¨ssbauer spectroscopy. It was found that the structures of nanoparticles were changed with the surfactants; Au and Pt nanoparticles were prepared individually by using SDS, and bimetallic Au/Pt alloy nanoparticles with a core–shell structure were produced in the presence of PEG-MS.
Keywords :
Gold–platinum alloy , Nanoparticle , Core–shell structure , HRTEM , 197Au Mo¨ssbauer spectroscopy , Sonochemistry
Journal title :
Applied Surface Science
Journal title :
Applied Surface Science
Serial Year :
Link To Document :