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The influence of the solid/liquid ratio on the point of zero charge of alumina
(Materials Science Forum, 2004)
The point of zero charge (pH(pzc)) of three samples of commercial aluminum oxide in aqueous KNO3 (10(-3) - 10(-1) mol/dm(3)) solution was investigated using batch equilibration, mass titration and acid-base titration ...
A kinetic study of the thermal decomposition process of potassium metabisulfite: Estimation of distributed reactivity model
(Journal of Physics and Chemistry of Solids, 2008)
The thermal decomposition kinetics of potassium metabisulfite was studied by thermogravimetric (TG) and differential thermogravimetric (DTG) techniques using non-isothermal experiments. The apparent activation energy (E-a) ...
Surface properties of silicon nitride powders
(Colloids and Surfaces. A: Physicochemical and Engineering Aspects, 2002)
The surface charge densities of silicon nitride powders in NaNO3 solutions of various concentrations were investigated by the potentiometric acid-base titration method. The points of zero charge, pH(pzc) of silicon nitride ...
Point of zero charge of different carbides
(Colloids and Surfaces. A: Physicochemical and Engineering Aspects, 2007)
Points of zero charge, pH(pzc), of various samples of NbC, WC, SiC and TiC powders were investigated using a batch equilibration method. The examined powders were both laboratory prepared (NbC and WC via plasma-chemical ...
Point of zero charge and isoelectric point of alumina
(Materials and Manufacturing Processes, 2008)
The point of zero charge, pHpzc, and the isoelectric point, pHiep, of a commercial alumina sample was investigated in KNO3 solutions. The influence of the concentration and the initial pH value of KNO3 solution used for ...
Surface properties of HAP particles obtained by hydrothermal decomposition of urea and calcium-EDTA chelates
(Key Engineering Materials, 2003)
In this paper surface properties of calcium-hydroxyapatite, synthesized by modified hydrothermal reaction of urea and Ca(EDTA)(2-) in phosphate solutions, as well as the dependence of calcium hydroxyapatite dispersion ...
Determination of intrinsic equilibrium constants at an alumina/electrolyte interface
(Journal of the Serbian Chemical Society, 2004)
Intrinsic ionization and complexation constants at an alumina/electrolyte interface were studied by the site binding model, while the sorption of alkali cations from aqueous solutions was interpreted by the triple-layer ...
Formation of oxygen complexes in controlled atmosphere at surface of doped glassy carbon
(Bulletin of Materials Science, 2006)
The effects of boron and phosphorus incorporation in phenolic resin precursor to the oxidation resistance of glassy carbon have been studied. In order to reveal the nature and composition of the oxygen complexes formed at ...
Surface characterization of silver and palladium modified glassy carbon
(Bulletin of Materials Science, 2007)
In this work, the influence of silver and palladium on the surface of undoped, boron doped and phosphorus doped glassy carbon has been studied. The silver and palladium concentrations in solution, after metal deposition, ...