Synthesis of gelatin-stabilized concentrated hydrosols of copper nanoparticles
- Authors: Vorobyev S.A.1,2, Saikova S.V.1, Karimov E.E.1
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Affiliations:
- Siberian Federal University
- Institute of Chemistry and Chemical Technology, Siberian Branch
- Issue: Vol 86, No 11 (2016)
- Pages: 2541-2547
- Section: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/216598
- DOI: https://doi.org/10.1134/S1070363216110220
- ID: 216598
Cite item
Abstract
The effect of the copper sulfate, hydrazine, and gelatin concentrations, as well as of the Bloom strength of gelatin, pH, and synthesis temperature on the formation of copper nanoparticles via copper(II) sulfate reduction with a hydrazine solution has been evaluated. Conditions for the formation of oxidation- and aggregation-resistant concentrated (up to 0.4 M) copper metal hydrosols have been found. According to the transmission electron microscopic data, the resulting hydrosols contain metallic copper nanoparticles shaped as polyhedra with six poorly defined facets, having an average size of 30–60 nm, stabilized by a gelatin layer (2–3 nm).
Keywords
About the authors
S. A. Vorobyev
Siberian Federal University; Institute of Chemistry and Chemical Technology, Siberian Branch
Author for correspondence.
Email: yekspatz@ya.ru
Russian Federation, Svobodnyi pr. 79, Krasnoyarsk, 660041; Krasnoyarsk
S. V. Saikova
Siberian Federal University
Email: yekspatz@ya.ru
Russian Federation, Svobodnyi pr. 79, Krasnoyarsk, 660041
E. E. Karimov
Siberian Federal University
Email: yekspatz@ya.ru
Russian Federation, Svobodnyi pr. 79, Krasnoyarsk, 660041