The Structure of Nanocomposites with Bimetallic Cu–Ni Nanoparticles Obtained by Chemical Reduction

Chemical reduction in an aqueous solution of a polymer is a relatively available method of synthesizing composites based on Cu/CuO x nanoparticles. The microstructure and composition of composites based on bimetallic Cu–Ni nanoparticles, obtained by chemical reduction in an aqueous solution of a pol...

Full description

Saved in:
Bibliographic Details
Published in:Crystallography reports 2022-12, Vol.67 (6), p.987-995
Main Authors: Isaeva, I. Y., Ostaeva, G. Y., Eliseeva, E. A., Golovin, A. L., Vasiliev, A. L.
Format: Article
Language:English
Subjects:
Aqueous solutions
Bimetals
Catalysts
Chemical reduction
Copper
Copper oxides
Crystallites
Crystallography and Scattering Methods
Dendritic powders
Dendritic structure
Nanocomposites
Nanomaterials and Ceramics
Nanoparticles
Nickel
Physics
Physics and Astronomy
Polymers
Scanning transmission electron microscopy
Transmission electron microscopy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Chemical reduction in an aqueous solution of a polymer is a relatively available method of synthesizing composites based on Cu/CuO x nanoparticles. The microstructure and composition of composites based on bimetallic Cu–Ni nanoparticles, obtained by chemical reduction in an aqueous solution of a polymer, have been studied by transmission electron microscopy, scanning transmission electron microscopy, and energy-dispersive X-ray microanalysis, in combination with X-ray diffraction (XRD) analysis. The investigations have been carried out for sol and dried powder; it is shown that the sol contains dendritic structures, composed of rounded polycrystalline nanoparticles 20–80 nm in size, which, in turn, consist of copper oxide crystallites. The powder, obtained after centrifugation and drying, consists of relatively large nanoparticle conglomerates more than 200 nm in size, which are composed of fcc-Cu and Cu 2 O crystallites, monoclinic CuO, and fcc-NiO. Cu 2 O and CuO particles generally occupy the inner and outer parts of nanoparticles, respectively. The obtained composites can be used as catalysts. The range of their application is wider than that of copper-based catalysts.
ISSN:1063-7745
1562-689X
DOI:10.1134/S1063774522060104