Nanocomposites and Nanomaterials

Synthesis of Barnsley fern-type silver nanostructures
Kytsya A. R.1,2, Bazylyak L. I.1, Pilyuk Ya. V.1, Balashova I. Ye.1
1 Department of Physical Chemistry of Fossil Fuels of the Institute of Physical Organic Chemistry and Coal Chemistry named after L. М. Lytvynenko of the NAS of Ukraine, 3а Naukova Str., 79060, Lviv, Ukraine.
E-mail: andriy_kytsya@yahoo.com
2 Physico-Mechanical Institute named after G. V. Karpenko of the NAS of Ukraine, 5 Naukova Str., Lviv, 79060, Ukraine

The conditions of the formation of three-metal nanostructures by Ni–Co–Ag type were studied for the first time by the method of the galvanic replacement the silver with Ni50Co50 nanoparticles. The structure of the obtained Ni–Co–Ag nanostructures was confirmed by scanning electron microscopy (SEM), X-ray phase analysis (XRD) and energy-dispersive X-ray spectroscopy (EDS). It was determined that under the studied conditions it is possible to obtain the magnetoseparable trimetallic nanostructures of Ni42Co43Ag15 composition; whereby the silver is crystallized in the form of a Barnsley fractal, the “petiole” of which “grows” from the agglomerates of Ni50Co50 nanoparticles (Figure).

Figure. SEM-image and XRD-pattern of the ternary nanostructures Ni–Co–A