Detail publikace

Behavior of confined water in the presence of nanoparticles

ŠRAM, M. ŘEZÁČOVÁ, V. KUČERÍK, J.

Originální název

Typ

abstrakt

Jazyk

angličtina

Originální abstrakt

Water is a unique substance that differs from other compounds and elements by number of anomalous properties. The origin of water anomalies is the tendency of water molecules to strongly attract to each other via hydrogen bonds. In liquid phase, these bonds are constantly formed as individual molecules pass by and disappear by the kinetic energy of the molecules from the thermal energy contained in the system. The water present in the pores has unique properties and its structure in these systems is not studied as much as the structure of bulk water. Water present in the pores shows different properties when analyzed using Differential Scanning Calorimetry (DSC) analysis. For example, a peak corresponding to the melting of bulk water and another peak for pore water can be distinguished [1]. The aim of this study was to analyse properties of water in a hydrophilic porous system with defined pore sizes and then to investigate the effect of nanoparticles present in solution on these properties. Silica microparticles with a defined pore size (10 nm, 50 nm and 100 nm; SOLAS™ Porous Silica Particles) and platinum nanoparticles (Pt-NPs) with size of 3 nm were used in the experiments. The properties of pure water and water with Pt-NPs in the pores were determined by using DSC . The results showed that the pore size influences the melting temperature and the whole melting process of water, most of all at a ratio of 2:1 (water:silica) and for the smallest pore sizes. In addition, the results for water with Pt-NPs showed a change in properties compared to pure water. However, no significant trends were observed when Pt-NPs were used in the water – silica system in the initial experiments. [1] M. Sliwinska-Bartkowiak, M. Jazdzewska, L. L. Huang, K. E. Gubbins, Phys. Chem. Chem. Phys., 2008, 10, 4909-4919

Klíčová slova

water, pores, nanoparticles

Autoři

ŠRAM, M.; ŘEZÁČOVÁ, V.; KUČERÍK, J.

Vydáno

26. 7. 2022

Nakladatel

1st Central and Eastern European Conference on Physical Chemistry and Materials Science

Místo

Chorvatsko

ISBN

ISBN 978-606-11-8164

Kniha

CEEC-PCMS1 BOOK OF ABSTRACTS

Edice

1st Central and Eastern European Conference on Physical Chemistry and Materials Science

Strany od

120

Strany do

120

Strany počet

234

URL

http://ceec-physchem.org/download.php?f=../download/BoA%20CEEC-PCMS1.pdf

BibTex

@misc{BUT179078,
  author="Matěj {Šram} and Veronika {Řezáčová} and Jiří {Kučerík}",
  title="Behavior of confined water in the presence of nanoparticles",
  booktitle="CEEC-PCMS1 BOOK OF ABSTRACTS",
  year="2022",
  series="1st Central and Eastern European Conference on Physical Chemistry and Materials Science",
  pages="120--120",
  publisher="1st Central and Eastern European Conference on Physical Chemistry and Materials Science",
  address="Chorvatsko",
  isbn="ISBN 978-606-11-8164",
  url="http://ceec-physchem.org/download.php?f=../download/BoA%20CEEC-PCMS1.pdf",
  note="abstract"
}