Artículo
Andrade, E.M.; Molina, F.V.; Posadas, D. "Adhesion of colloidal hematite onto metallic surfaces II. Influence of electrode potential, pH, ionic strength, colloid concentration, and nature of the electrolyte on the adhesion on mercury" (1994) Journal of Colloid And Interface Science. 165(2):459-466
Consulte la política de Acceso Abierto del editor
Abstract:
In this work the influence of several factors on the adherence of hematite particles onto mercury electrodes is studied through capacitance, C, measurements at different applied potentials, E. The C/E relationship shows two maxima at potentials more positive and more negative with respect to the zero charge potential of the bare metal. The pH dependence of the capacity maxima shows an inflection point at a pH of about 4. The capacitance increases with ionic strength. The C/E curve depends markedly on the nature of the anion present in the electrolyte. In the potential range between the maxima, the capacitance depends on the potential in an approximately parabolic way. The number of attached particles as a function of hematite concentration in solution shows an adsorption isotherm-like behavior. The experimental findings can be rationalized in terms of the influence of the different variables on the electrochemical free energy of adhesion. © 1994 by Academic Press, Inc.
Registro:
| Documento: | Artículo |
| Título: | Adhesion of colloidal hematite onto metallic surfaces II. Influence of electrode potential, pH, ionic strength, colloid concentration, and nature of the electrolyte on the adhesion on mercury |
| Autor: | Andrade, E.M.; Molina, F.V.; Posadas, D. |
| Filiación: | Departamento de Química Inorgánica, Analútica y Química Física, Facultad de Ciencias Exactas, UBA, Ciudad Universitaria, Pabellón II, 1428 Buenos Aires, Argentina INIFTA, Sucursal 4, Casilla de Correo 16, 1900 La Plata, Argentina |
| Año: | 1994 |
| Volumen: | 165 |
| Número: | 2 |
| Página de inicio: | 459 |
| Página de fin: | 466 |
| DOI: | http://dx.doi.org/10.1006/jcis.1994.1250 |
| Título revista: | Journal of Colloid And Interface Science |
| Título revista abreviado: | J Colloid Interface Sci |
| ISSN: | 00219797 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219797_v165_n2_p459_Andrade |
Referencias:
- Andrade, E.M., Molina, F.V., Posadas, D., (1994) J. Colloid Interface Sci., 450, p. 165
- Matijevic, E., Scheiner, P., (1978) J. Colloid Interface Sci., 63, p. 509
- Derjaguin, B., (1954) Discuss. Faraday Soc., 18, p. 85
- Devereux, O.F., De Bruyn, P.L., (1963) Interaction of Plane Paralell Double Layers., , MIT Press, Cambridge, MA
- Hogg, R., Healy, T.W., Fuerstenau, D.W., (1966) Trans. Faraday Soc., 62, p. 1638
- Israelachvili, J., (1985) Intermolecular and Surface Forces., , Academic Press, New York
- Delahay, P., (1965) Double Layer and Electrode Kinetics., , Interscience, New York
- Chan, D., Penram, J., White, L., Healy, T., (1975) J. Chem. Soc. Faraday Trans. I, 71 (5), p. 1046
- Grahame, D.C., (1958) J Am. Chem. Soc., 80, p. 4201
- Dumont, F., Van Tan, D., Watillon, A., (1976) J. Colloid Interface Sci., 55, p. 678
- Grahame, D.C., Soderberg, B.A., (1954) J. Chem. Phys, 22, p. 449
- Mott, N.F., Watts-Tobin, R.J., (1961) Elecirochim. Acta, 4, p. 79
- Sosa, M.I., Posadas, D., Arvia, A.J., (1982) J. Electroanal. Chem., 137, p. 307
- Bierman, A., (1955) J. Colloid Sci., 10, p. 231
- Adamczik, Z., Siwak, B., Zembala, M., (1992) Colloids Surf, 62, p. 119
- Bowling, R.A., (1988) Particles and Surfaces, , K. L. Mittal, Ed.). Plenum Press, New York
- Verwey, E.J., Overbeek, J.T., (1948) Theory of the Stability of Lyo-Phobic Colloids., , Elsevier, Amsterdam
- Kuo, R., Matijevic, E., (1979) J. Chem. Soc. Faraday, 175, p. 285
- Usui, S., (1972) Progress in Surface and Membrane Science, 5, p. 223. , J. F. Danielli, Ed.), Academic Press, New York
- Mohilner, D.M., (1966) Electroanalytical Chemistry, 1. , A. J. Bard, Ed, Dekker, New York
- Davis, J.A., Leckie, J.O., Chemical Modeling in Aqueous Systems, 93. , A. A. Jenné, Ed.), ACS Symposium Series, chap
- (1979), Washington DC; Sposito, G., (1984) The Surface Chemistry of Soils., , Oxford Univ. Press, London/New York
- Davis, J.A., Leckie, J.O., (1978) J. Colloid Interface Sci., 67, p. 90
- McCafferty, E., Zettlemoyer, A.C., (1971) Discuss. Faraday Soc., 52, p. 239
- Damaskin, B.B., Petrii, O.A., Batrakov, V.V., (1971) Adsorption of Organic Compounds on Electrodes., , Plenum Press, New York
Citas:
---------- APA ----------
Andrade, E.M., Molina, F.V. & Posadas, D. (1994) . Adhesion of colloidal hematite onto metallic surfaces II. Influence of electrode potential, pH, ionic strength, colloid concentration, and nature of the electrolyte on the adhesion on mercury. Journal of Colloid And Interface Science, 165(2), 459-466.http://dx.doi.org/10.1006/jcis.1994.1250
---------- CHICAGO ----------
Andrade, E.M., Molina, F.V., Posadas, D. "Adhesion of colloidal hematite onto metallic surfaces II. Influence of electrode potential, pH, ionic strength, colloid concentration, and nature of the electrolyte on the adhesion on mercury" . Journal of Colloid And Interface Science 165, no. 2 (1994) : 459-466.http://dx.doi.org/10.1006/jcis.1994.1250
---------- MLA ----------
Andrade, E.M., Molina, F.V., Posadas, D. "Adhesion of colloidal hematite onto metallic surfaces II. Influence of electrode potential, pH, ionic strength, colloid concentration, and nature of the electrolyte on the adhesion on mercury" . Journal of Colloid And Interface Science, vol. 165, no. 2, 1994, pp. 459-466.http://dx.doi.org/10.1006/jcis.1994.1250
---------- VANCOUVER ----------
Andrade, E.M., Molina, F.V., Posadas, D. Adhesion of colloidal hematite onto metallic surfaces II. Influence of electrode potential, pH, ionic strength, colloid concentration, and nature of the electrolyte on the adhesion on mercury. J Colloid Interface Sci. 1994;165(2):459-466.http://dx.doi.org/10.1006/jcis.1994.1250
