Insights into the growth of nanoparticles in liquid polyol by thermal annealing

0545234 - FZÚ 2022 RIV GB eng J - Journal Article
Chauvin, A. - Sergievskaya, A. - Fučíková, A. - Correa, Cinthia Antunes - Vesely, J. - Cornil, J. - Cornil, D. - Dopita, M. - Konstantinidis, S.
Insights into the growth of nanoparticles in liquid polyol by thermal annealing.
Nanoscale Advances. Roč. 3, č. 16 (2021), s. 4780-4789. ISSN 2516-0230. E-ISSN 2516-0230
Institutional support: RVO:68378271
Keywords : metal-oxide based nanoparticles * sputtering * pentaerythritol ethoxylate
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 5.598, year: 2021
Method of publishing: Open access

We report on the growth of metal- and metal-oxide based nanoparticles (NPs) in heated polyol solutions. For this purpose, NPs are produced by the sputtering of a silver, gold, or a copper target to produce either silver, gold, or copper oxide NPs in pentaerythritol ethoxylate (PEEL) which has been annealed up to 200 oC. The objective of the annealing step is the fine modulation of their size. Thus, the evolution of the NP size and shape after thermal annealing is explained according to collision/coalescence kinetics and the affinity between the metal-/metal-oxide and PEEL molecule. Moreover, high lights of few phenomena arising from the annealing step are described such as (i) the reduction of copper oxide into copper by the polyol process and (ii) the effective formation of carbon dots after annealing at 200 oC.
Permanent Link: http://hdl.handle.net/11104/0321980