Naslov
Introduction of surface potential measurements in interpretation of equilibrium at electrical interfacial layer

Autori
Kallay, Nikola ; Preočanin, Tajana ; Lutzenkirchen, Johannes

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

Izvornik
239th American Chemical Society National Meeting&Exposition / Joshef S. Francisco - San Francisco (CA) : ACS, 2010, 147-147

Skup
239th American Chemical Society National Meeting&Exposition

Mjesto i datum
San Francisco (CA), Sjedinjene Američke Države, 21.03.2010. - 25.03.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
electricasurface potential; electrical interfacial layer; surface charge; surface compexation
(surface potential; electrical interfacial layer; surface charge; surface compexation)

Sažetak
Electrostatic potential at the inner surface plane within the electrical interfacial layer (surface potential Ψ0) affects the state of charged surface species formed by interactions with potential determining ions (p.d.i.) and is one of the main parameters characterizing the interface. Surface potential (Ψ0) could be measured by Ion Sensitive Field Effect Transistors (ISFET) and by more recently developed Single Crystal Electrodes (SCrE). Surface potential measurements by themselves, and also in combination with electrokinetic and surface charge data, provide information on the rate of equilibration and the equilibrium state. The properties of individual surface planes, as well as their interaction due to the bulk crystal conductivity could be examined and compared with the theoretical models. Several aqueous systems were examined, such as gas, ice, metal oxides and silver halides.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA