O‘zMU xabarlari Вестник НУУз ACTA NUUz
FIZIKA
3/1 2023
- 504 -
UDK: 53.01, 544.012
Ibrat O‘RUNOV,
O‘zbekiston Milliy universiteti Fizika fakulteti magistranti
O‘zR FA, Ion-Plazma va lazer texnologiyalari instituti muhandisi
E-mail: ibraturunov@gmail.com
Faxriddin SAFAROV,
Denov tadbirkorlik va pedagogika instituti stajyor-o'qituvchisi
E-mail: safarov-faxriddin@mail.ru
Islomjon JO‘RAYEV,
O‘zR FA, Ion-Plazma va lazer texnologiyalari instituti kichik ilmiy xodimi
E-mail: islom1984jon@gmail.com
Kamoladdin EGAMBERDIEV,
O‘zR FA, Ion-Plazma va lazer texnologiyalari instituti katta ilmiy xodimi
Geologiya fanlari universiteti Aniq va tabiiy fanlar kafedrasi dotsenti
E-mail: kegamberdiev@yandex.ru
Turg‘unali AXMADJАNOV,
O‘zbekiston Milliy universiteti fizika fakulteti Fotonika kafedrtasi mudiri
E-mail: t.akhmadjanov@nuu.uz
Umedjon XALILOV,
O‘zR FA, Ion-Plazma va lazer texnologiyalari instituti bosh ilmiy xodimi
Denov tadbirkorlik va pedagogika instituti o‘qituvchis,
E-mail: umedjon.khalilov@uantwerpen.be
Geologiya fanlari universiteti dotsenti, f.-m.f.d. X.Raximov taqrizi asosida
AGGREGATION MECHANISMS OF MONODISPERSED NiO NANOCLUSTERS
Abstract
Investigating nanocatalyst aggregation mechanisms is important for controlling the size of nanocatalysts in different
environments. Despite the aggregation processes of NiO nanoparticles have been studied to some extent in ideal environments,
i.e.,
gas and aqueous solutions, their interaction mechanisms between aqueous media and nanoclusters are still not fully
understood. In this work, the environmental effect on the aggregation process of NiO nanoclusters with a size of about 1 nm has
been studied using molecular dynamics simulations. Obtained results show that (1) nanoclusters are located at a longer distance
from each other in aqueous media in comparison to vacuum due to the hydrodynamic shell (with a thickness of 0.08 nm) formed
around the NiO nanoaggregates affected
by the aqueous environment, and (2) the stability of NiO nanoclusters in the water
environment decreases as a result of the formation of the hydrodynamic shell. The results of our
study suggest that a better
understanding of the tuning of nanocatalyst size will lead to the selective synthesis of nanomaterials with unique properties,
which are the basis of nanotechnology.
