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Surface Potential of Polycrystalline Hematite in Aqueous Medium
Joint Authors
Stipić, Filip
Preočanin, Tajana
Selmani, Atiđa
Kallay, Nikola
Source
International Journal of Electrochemistry
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-07-21
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
The surface potential of polycrystalline hematite in aqueous sodium perchlorate environment as a function of pH was examined.
Surface potential of hematite was obtained from measured electrode potential of a nonporous polycrystalline hematite electrode.
Acidic solution was titrated with base, and the backward titration with acid was performed.
Substantial hysteresis was obtained which enabled location of the point of zero potential and equilibrium values of surface potentials.
The theoretical interpretation of the equilibrium data was performed by applying the surface complexation model and the thermodynamic equilibrium constants for the first and the second step of surface protonation was obtained as logK1∘=11.3;logK2∘=2.8.
American Psychological Association (APA)
Preočanin, Tajana& Stipić, Filip& Selmani, Atiđa& Kallay, Nikola. 2011. Surface Potential of Polycrystalline Hematite in Aqueous Medium. International Journal of Electrochemistry،Vol. 2011, no. 2011, pp.1-6.
https://search.emarefa.net/detail/BIM-470096
Modern Language Association (MLA)
Preočanin, Tajana…[et al.]. Surface Potential of Polycrystalline Hematite in Aqueous Medium. International Journal of Electrochemistry No. 2011 (2011), pp.1-6.
https://search.emarefa.net/detail/BIM-470096
American Medical Association (AMA)
Preočanin, Tajana& Stipić, Filip& Selmani, Atiđa& Kallay, Nikola. Surface Potential of Polycrystalline Hematite in Aqueous Medium. International Journal of Electrochemistry. 2011. Vol. 2011, no. 2011, pp.1-6.
https://search.emarefa.net/detail/BIM-470096
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-470096