Calculation of acid-base equilibrium constants for the oxide-electrolyte interface from the pH dependence of electrokinetic potential
- Moscow State Pedagogical Univ. (Russian Federation); and others
The acid-base properties of oxides are an important characteristic of oxide phases, which allows one to predict their catalytic activity and adsorption behavior. There are various methods of determining acid-base equilibrium constants, based on IR spectroscopy, radioactive tracer techniques, adsorption, calorimetry, and nuclear magnetic resonance. Recent investigations showed that potentiometric titration is an effective technique for determining acid-base equilibrium constants. Experimental data obtained through the above-mentioned techniques were processed under the assumption that the oxide is in equilibrium with the electrolyte. In this paper, relying on literature data, we present a procedure for determinig te EDL parameters and acid-base equilibrium constants, derived from an analysis of the electrokinetic potential on ph in the absence of selective adsorption of ions.
- OSTI ID:
- 102632
- Journal Information:
- Inorganic Materials, Vol. 30, Issue 6; Other Information: PBD: Jun 1994; TN: Translated from Neorganicheskie Materialy; 30: No. 6, 795-802(1994)
- Country of Publication:
- United States
- Language:
- English
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