Osobennosti protekaniya khimicheskikh reaktsii v nanorazmernykh chastitsakh

0380573 - ÚCHP 2013 RIV BY rus C - Konferenční příspěvek (zahraniční konf.)
Levdansky, V.V. - Smolík, Jiří - Ždímal, Vladimír - Moravec, Pavel
Osobennosti protekaniya khimicheskikh reaktsii v nanorazmernykh chastitsakh.
[Peculiarities of Chemical Reactions Occuring in Nanoscale Particles.]
Tezisy dokladov i soobschenii. Minsk: Institut teplo- i massoobmena A.V.Lykova NAN Belarusi, 2012, s. 639-640. ISBN 978-985-6456-82-7.
[Minskii mezhunarodnyi forum po teplo- i massoobmenu /14./. Minsk (BY), 10.09.2012-13.09.2012]
Grant CEP: GA ČR GA101/09/1633; GA AV ČR IAA200760905
Institucionální podpora: RVO:67985858
Klíčová slova: nanoparticle size * reactants * chemical reaction * .
Kód oboru RIV: BJ - Termodynamika

Teoreticheski issleduetsya vliyanie razmera nanochastits na protekayischie v nikh khimicheskie reaktsii. Pokazano, chto vsledstvie razmernoi zavisimosti energii korezii v nanorazmernoi chastitse energiya aktivatsii reagiruyuschikh komponentov, a takzhe energiya aktivatsii sobstvenno khimicheskoi reaktsii ponizhayutsya, a effektivnaya konstanta skorosti khimicheskou reaktsii uvelichivaetsya s umensheniem razmerananochastitsy. Rassmotreno vliyanie razmera nanochastitsy na umenshenie kontsentratsii reagiryyuschikh b nei komponentov.

The influence of the nanoparticles size on the rate of chemical reactions occuring in nanoparticles is stidied theoretically. it is shown that due to the size dependence of the cohesive energy in the nanoscale particle the activation energy for diffusion of ractants as well aa the intrinsic activation energy of a chemical reaction are reduced and the effective rate constant of a chemical reaction increases with a decrease in the nanoparticle size. The influence of the nanoparticle size on reactant depletion is considered.
Trvalý link: http://hdl.handle.net/11104/0211242