Evaluation of interfacial equilibrium constants from surface potential data: Silver chloride aqueous interface

Preočanin, Tajana; Šupljika, Filip; Kallay, Nilcola

doi:10.1016/j.jcis.2009.05.051

Cited by 22 publications

(31 citation statements)

References 25 publications

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“…According to the definition equations of relative activity (10), relative content (13)(14)(15), and activity coefficient (20)(21)(22), the expression for the thermodynamic equilibrium constant (9) depends on the stoichiometry of the reaction equation. Binding of ionic species to the surface is commonly described by the Surface Complexation or Site Binding model.…”

Section: Thermodynamic Interfacial Equilibrium Constantsmentioning

confidence: 99%

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Thermodynamics of the Reactions at Solid/Liquid Interfaces

et al. 2011

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Abstract. The present review discusses the state of the art of the thermodynamic treatment for variable charge at solid/liquid interfaces. The most important equations are given for the case of generic surface sites. This can easily be extended to the more general case for multiple surface sites. Detailed aspects involving thermodynamic standard states of simple and multidentate surface complexes are addressed, and relationships between the commonly-used empirical adsorption isotherms and the Surface Complexation Model are presented. (doi: 10.5562/cca1864)

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Section: Thermodynamic Interfacial Equilibrium Constantsmentioning

confidence: 99%

“…13,14 For example binding of divalent magnesium ions to a negatively charged surface may proceed by at least two possible mechanisms. Binding to one negative site is represented by…”

Section: Thermodynamic Interfacial Equilibrium Constantsmentioning

confidence: 99%

Thermodynamics of the Reactions at Solid/Liquid Interfaces

et al. 2011

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“…adsorption and release of H + ions on/from the surface. It was found that the potential of the single crystal silver halide electrodes, AgCl [47][48][49] and AgBr, [50,51] depends on the activities of Ag + and Cl − or Br -ions, respectively.…”

Section: Single Crystal Electrodementioning

confidence: 99%

The Effects on the Response of Metal Oxide and Fluorite Single Crystal Electrodes and the Equilibration Process in the Interfacial Region

Preočanin¹,

Namjesnik²,

Klačić³

et al. 2017

Croat. Chem. Acta

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Inner surface potential, one of the most important variables affecting the interfacial equilibrium of metal oxide aqueous systems, obtained by means of single crystal electrode gives valuable information about electrical charging of the metal oxide/aqueous electrolyte solution interfaces. The influence of the potential determining ions and ionic strength on the measured electrode potential as well as time of the equilibration, direction of the titration and the effect of the magnetic stirring enables the critical examination of the processes which take place during the interfacial equilibrium. For that purpose, the selected metal oxides (hematite, ceria, sapphire, and rutile) and fluorite single crystal electrodes were examined.

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“…Some reports suggest the absence of significant ionic strength dependence for oxide minerals (as is the case for other minerals such as AgCl) 26 while other experimental evidence would suggest weak influence. 27 In papers where non-linear optics is used to study interfaces it is not always clear what is meant, when the term surface potential is used. With respect to the experimental data it appears that the underlying theory would suggest it indeed refers to Ψ 0 .…”

Section: Some Theoretical Aspectsmentioning

confidence: 99%

Potentiometric Titrations as a Tool for Surface Charge Determination

Lützenkirchen¹,

Preočanin²,

Kovačević³

et al. 2012

Croat. Chem. Acta

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104

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Abstract. This article summarizes methods for determining proton surface charge at mineral/water interfaces. It covers conventional experimental procedures and discusses problems with the techniques. Also it involves recommendations for obtaining reasonable and comparable results. The term "comparable results" refers to comparison between results for the same solid as obtained in different laboratories. The most important parameters for the surface titrations are discussed. We also propose a reference titration procedure that would allow direct, unbiased comparisons of experimental data. The article finally includes a check-list for researchers and reviewers which should allow limiting the amount of titration data that are not useful for future uses. (doi: 10.5562/cca2062)

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Evaluation of interfacial equilibrium constants from surface potential data: Silver chloride aqueous interface

Cited by 22 publications

References 25 publications

Thermodynamics of the Reactions at Solid/Liquid Interfaces

Thermodynamics of the Reactions at Solid/Liquid Interfaces

The Effects on the Response of Metal Oxide and Fluorite Single Crystal Electrodes and the Equilibration Process in the Interfacial Region

Potentiometric Titrations as a Tool for Surface Charge Determination

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