Structure of Core-Shell Ni/Au Nanoparticles Synthesized in Two-Stage Process From Aqueous Salt Solutions

Yu. A. Zaharov; V. G. Dodonov; V. M. Pugachev; D. M. Russakov; N. V. Ivanova; R. P. Kolmykov; N. K. Yeremenko; I. I. Obraztsova

doi:10.18321/ectj267

Authors

Yu. A. Zaharov Kemerovo State University, Krasnaya st., 6, 650043 Kemerovo, Russia
V. G. Dodonov Kemerovo State University, Krasnaya st., 6, 650043 Kemerovo, Russia
V. M. Pugachev Kemerovo State University, Krasnaya st., 6, 650043 Kemerovo, Russia
D. M. Russakov Kemerovo State University, Krasnaya st., 6, 650043 Kemerovo, Russia
N. V. Ivanova Kemerovo State University, Krasnaya st., 6, 650043 Kemerovo, Russia
R. P. Kolmykov Kemerovo State University, Krasnaya st., 6, 650043 Kemerovo, Russia
N. K. Yeremenko Institute of Coal Chemistry and Material Science SB RAS, pr. Sovetskiy 18, 650000 Kemerovo, Russia
I. I. Obraztsova Institute of Coal Chemistry and Material Science SB RAS, pr. Sovetskiy 18, 650000 Kemerovo, Russia

DOI:

https://doi.org/10.18321/ectj267

Abstract

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.

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