TY - JOUR
T1 - Electron microscopy of noble metal alloy nanoparticles prepared by sonochemical methods
AU - Oshima, R.
AU - Yamamoto, T. A.
AU - Mizukoshi, Y.
AU - Nagata, Y.
AU - Maeda, Y.
N1 - Funding Information:
The present work was supported in part by a Grant-in-Aid for Cooperative Research from the Ministry of Education, Scientific and Culture, Japan. We wish to express our thanks to Mr. N. Fujita of the Technology Research Institute of Osaka Prefecture for the use of the Hitachi I-IF-2000 electron microscope. We also to the JEOL company for kindly permitting us to use a EM-20 10F electron microscope.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1999
Y1 - 1999
N2 - Argon-saturated aqueous solutions of NaAuCl4 and PdCl2 or K2PtCl4 were reduced simultaneously by ultrasound irradiation to prepare noble metal alloy nanoparticles. Droplets recovered from colloidal dispersions were placed on carbon-supported copper grids, and dried in a vacuum. They were examined by TEM, HRTEM, and nano-area energy dispersion X-ray spectroscopy (EDX). The Au-Pd nanoparticles exhibited monodispersive distribution (8 nm), and consisted of a gold core and a palladium shell. Au-Pt alloys nanoparticles could not be produced from NaAuCl4 and K2PtCl4 aqueous solutions either by simultaneous or successive reduction.
AB - Argon-saturated aqueous solutions of NaAuCl4 and PdCl2 or K2PtCl4 were reduced simultaneously by ultrasound irradiation to prepare noble metal alloy nanoparticles. Droplets recovered from colloidal dispersions were placed on carbon-supported copper grids, and dried in a vacuum. They were examined by TEM, HRTEM, and nano-area energy dispersion X-ray spectroscopy (EDX). The Au-Pd nanoparticles exhibited monodispersive distribution (8 nm), and consisted of a gold core and a palladium shell. Au-Pt alloys nanoparticles could not be produced from NaAuCl4 and K2PtCl4 aqueous solutions either by simultaneous or successive reduction.
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U2 - 10.1016/S0965-9773(99)00076-8
DO - 10.1016/S0965-9773(99)00076-8
M3 - Conference article
AN - SCOPUS:0032593821
VL - 12
SP - 111
EP - 114
JO - Nanostructured Materials
JF - Nanostructured Materials
SN - 0965-9773
IS - 1
T2 - Proceedings of the 1998 4th International Conference on Nanostructured Materials (NANO '98)
Y2 - 14 June 1998 through 19 June 1998
ER -