Pregled bibliografske jedinice broj: 1244401
Surface potentials and processes at the mineral/aqueous electrolyte surfaces
Surface potentials and processes at the mineral/aqueous electrolyte surfaces // Ion adsorption and electrokinetic transport at interfaces, May 4, 2022 - May 6, 2022 CECAM-FR-GSO, Site de Marcoule, Marcoule / Dufrêche, Jean-François ; Hartkamp, Remko ; Joly, Laurent ; Predota, Milan (ur.).
Chusclan, Francuska, 2022. str. 17-17 (pozvano predavanje, međunarodna recenzija, sažetak, znanstveni)
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Naslov
Surface potentials and processes at the mineral/aqueous electrolyte surfaces
Autori
Begović, Tajana ; Namjesnik, Danijel ; Klačić, Tin ; Lutzenkirchen, Johannes
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Ion adsorption and electrokinetic transport at interfaces, May 4, 2022 - May 6, 2022 CECAM-FR-GSO, Site de Marcoule, Marcoule
/ Dufrêche, Jean-François ; Hartkamp, Remko ; Joly, Laurent ; Predota, Milan - , 2022, 17-17
Skup
Ion adsorption and electrokinetic transport at interfaces
Mjesto i datum
Chusclan, Francuska, 04.05.2022. - 06.05.2022
Vrsta sudjelovanja
Pozvano predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
surface potential ; metal oxide, surface reaction, single crystal electrode
Sažetak
Mineral/aqueous electrolyte interfaces play an important role in the environment and technology. The chemical properties of minerals, as well as the composition of aqueous medium determine the processes at the surfaces. In the case of chemically nonreactive materials, surface processes may be simple and involve only the distribution of potential determining ions between the interface and the bulk of the solution. However, at the metal oxide surfaces the surface complexation [1] and adsorption of ions and molecules take place. In some cases, dissolution / crystal growth, surface transformation and degradation/corrosion may occur. The processes that occur before and during the establishment of a surface equilibrium are explored using the different experimental and computational techniques. We measured the inner by means of mineral single crystal electrode (SCrE) and electrokinetic zeta potentials obtained via electrophoresis and streaming potential measurements (SP). The interplay of surface dissolution and surface transformation with the reactions of active surface sites and distribution of ions between the interfacial region and the bulk of the solution will be discussed. Different solid surface are considered an example of the insoluble oxide (TiO2) [3], an example of the semi- soluble mineral (SiO2) [4] and an example of the soluble mineral (CaF2) [5].
Izvorni jezik
Engleski
Znanstvena područja
Kemija
POVEZANOST RADA
Projekti:
HRZZ-IP-2020-02-9571 - Fizikalna kemija procesa na međupovršini mineral/otopina (poli)elektrolita (POLYMIN2) (Begović, Tajana, HRZZ - 2020-02) ( CroRIS)
Ustanove:
Prirodoslovno-matematički fakultet, Zagreb