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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.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 | citiraj | |
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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 |
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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
Moj profil
Srce