Open AccessStructure of Core-Shell Ni/Au Nanoparticles Synthesized in Two-Stage Process From Aqueous Salt Solutions
Author(s) -
Yu. A. Zaharov,
В. Г. Додонов,
В. М. Пугачев,
D. М. Russakov,
Natalia V. Ivanova,
Р. П. Колмыков,
N.K. Yeremenko,
И. И. Образцова
Publication year - 2016
Publication title -
eurasian chemico-technological journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.227
H-Index - 9
eISSN - 2522-4867
pISSN - 1562-3920
DOI - 10.18321/ectj267
Subject(s) - high resolution transmission electron microscopy , small angle x ray scattering , crystallite , nanoporous , materials science , aqueous solution , nanoparticle , chemical engineering , nickel , nanostructure , shell (structure) , nanotechnology , transmission electron microscopy , chemistry , metallurgy , scattering , composite material , optics , physics , engineering
Core-shell Ni/Au nanoparticles are synthesized in a two-stage process in aqueous solutions. The core-shell structure of the synthesized particles is proven by using results of HRTEM, TEM, SAXS and CVA methods. The thickness of the core is estimated at 1 nm and it is formed from 1–2 layers of mutually oriented gold crystallites. The CVA results show that the Au-shells are nanoporous, and that a layer of nickel oxidation products is formed. These results were obtained by using Vis spectrophotometer, TEM, HRTEM, SAXS, CVA and elemental analysis.