Naslov
Utjecaj potancijala na širenje i odvajanje organskih kapljica na metalnim međupovršinama
(Effect of potential on spreading and detachment of organic droplets at aqueous metalic interface)

Autori
Ivošević, Nadica ; Žutić, Vera

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Proceedings of 1st Croatian symposium on electrochemistry / Gojo, M. - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI), 1998, 39-40

Skup
1st Croatian symposium on electrochemistry

Mjesto i datum
Varaždin, Hrvatska, 07.09.1998. - 09.09.1998

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
spreading; detachment; organic droplet; n-alkane

Sažetak
The phenomena of electrowetting and recent application of electrical potential to shape organic microdroplets at solid substrates into arrays of lenses, with focal length that can be reversibly changed, point out to the importance of a general understanding of dynamics and equillibria of wetting processes at electrodes. We shall use simple videorecordings to demonstrate how spreading and shape of organic droplets at the mercury/aqueous electrolyte interface depend on the interfacial forces that are controlled by the applied potential. We indicate a method to measure interfacial forces in the system organic droplet-mercury electrode/aqueous electrolyte solution when adhesion counteracts buoyancy of a droplet. The significance of this work is that the wetting phenomena identified in the model system apply more generally, for the droplets and insoluble films on the electrode material, and the findings can be extrapolated to complex electrochemical systems of technological importance.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA