Pregled bibliografske jedinice broj: 617668
Evaluation of surface potential from single crystal electrode potential, Adsorption
Evaluation of surface potential from single crystal electrode potential, Adsorption // Adsorption, 19 (2013), 2/4; 259-267 doi:10.1007/s10450-012-9448-5 (međunarodna recenzija, članak, znanstveni)
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Naslov
Evaluation of surface potential from single crystal electrode potential, Adsorption
Autori
Preočanin, Tajana ; Kallay, Nikola
Izvornik
Adsorption (0929-5607) 19
(2013), 2/4;
259-267
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
single crystal electrode; sapphire; surface potential; electrical interfacial layer; sSurface complexation; equilibrium parameters; surface charging
Sažetak
The new method of evaluation of the point of zero potential for the metal oxide exhibiting a saddle-like surface potential function Ψ0(pH), as obtained by acid base potentiometric titration using Single Crystal Electrode, was proposed. The electrode potential of sapphire single crystal electrode (A crystal plane, 11¯20) was measured, point of zero potential and surface potentials were evaluated, and the results were analyzed using the Surface Complexation Model. The electroneutrality point corresponding to the point of zero potential was found to be at pHpzp = 7.0. Thermodynamic protonation equilibrium constants for the first and the second step of protonation were obtained as lgK◦1 = 12.7 ; lgK◦2 = 1.2.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
POVEZANOST RADA
Projekti:
119-1191342-2961 - Fizikalna kemija koloida i međupovršina (Kallay, Nikola, MZOS ) ( CroRIS)
Ustanove:
Prirodoslovno-matematički fakultet, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
