hrcak mascot   Srce   HID

Izvorni znanstveni članak
https://doi.org/10.5562/cca2176

Electrical Interfacial Layer at Hematite/Dicarboxylic Acid Aqueous Interface

Jasmina Salopek ; Division of Physical Chemistry, Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia
Nikola Kallay ; Division of Physical Chemistry, Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia
Davor Kovačević   ORCID icon orcid.org/0000-0001-6446-3459 ; Division of Physical Chemistry, Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia

Puni tekst: engleski, pdf (2 MB) str. 553-558 preuzimanja: 652* citiraj
APA 6th Edition
Salopek, J., Kallay, N. i Kovačević, D. (2012). Electrical Interfacial Layer at Hematite/Dicarboxylic Acid Aqueous Interface. Croatica Chemica Acta, 85 (4), 553-558. https://doi.org/10.5562/cca2176
MLA 8th Edition
Salopek, Jasmina, et al. "Electrical Interfacial Layer at Hematite/Dicarboxylic Acid Aqueous Interface." Croatica Chemica Acta, vol. 85, br. 4, 2012, str. 553-558. https://doi.org/10.5562/cca2176. Citirano 27.02.2021.
Chicago 17th Edition
Salopek, Jasmina, Nikola Kallay i Davor Kovačević. "Electrical Interfacial Layer at Hematite/Dicarboxylic Acid Aqueous Interface." Croatica Chemica Acta 85, br. 4 (2012): 553-558. https://doi.org/10.5562/cca2176
Harvard
Salopek, J., Kallay, N., i Kovačević, D. (2012). 'Electrical Interfacial Layer at Hematite/Dicarboxylic Acid Aqueous Interface', Croatica Chemica Acta, 85(4), str. 553-558. https://doi.org/10.5562/cca2176
Vancouver
Salopek J, Kallay N, Kovačević D. Electrical Interfacial Layer at Hematite/Dicarboxylic Acid Aqueous Interface. Croatica Chemica Acta [Internet]. 2012 [pristupljeno 27.02.2021.];85(4):553-558. https://doi.org/10.5562/cca2176
IEEE
J. Salopek, N. Kallay i D. Kovačević, "Electrical Interfacial Layer at Hematite/Dicarboxylic Acid Aqueous Interface", Croatica Chemica Acta, vol.85, br. 4, str. 553-558, 2012. [Online]. https://doi.org/10.5562/cca2176

Sažetak
The interfacial properties of the system hematite/dicarboxylic acid were investigated in the presence of sodium perchlorate by means of adsorption, zeta potential and surface potential measurements. Maleic and fumaric acid were used as dicarboxylic acids. No significant difference in the surface potential values of hematite with and without the presence of dicarboxylic acids was observed. On the other hand, the zeta potential and the corresponding isoelectric point values obtained after adsorption of fumaric and maleic acids on hematite differ significantly from the zeta potential values of pure hematite. The parameters characterizing the electrical interfacial layer were determined on the basis of simultaneous interpretation of experimental data showing that there are some differences in adsorption behavior of two investigated dicarboxylic acids. The obtained equilibrium constant for adsorption of fumaric acid (logK° = 4.9 ± 0.2) is higher than the same constant obtained for adsorption of maleic acid (logK° = 4.0 ± 0.1) and the value of C1 was in both cases determined as 2.2 ± 0.3 F m–2. (doi: 10.5562/cca2176)

Ključne riječi
hematite; maleic acid; fumaric acid; adsorption; zeta potential; surface potential

Hrčak ID: 94466

URI
https://hrcak.srce.hr/94466

Posjeta: 963 *