The adsorption of nickel dimethylglyoxime complex on mercury

The adsorption of the Ni(II) dimethylglyoxime complex, Ni(DMGH)2, on mercury was studied as a function of time by voltammetric and differential capacitance methods in ammonia and borate buffers. The influence of the adsorption potential and the complex concentration was also studied. The adsorption...

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Autor principal: Ramirez, S.
Otros Autores: Gordillo, G.J, Posadas, D.
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: Elsevier 1996
Acceso en línea:Registro en Scopus
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100 1 |a Ramirez, S. 
245 1 4 |a The adsorption of nickel dimethylglyoxime complex on mercury 
260 |b Elsevier  |c 1996 
270 1 0 |m Posadas, D.; INIFTA, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Sucursal 4, Casilla de Correo 16, 1900 La Plata, Argentina 
506 |2 openaire  |e Política editorial 
504 |a Pihlar, B., Valenta, P., Nürnberg, H., (1981) Fresenius Z. Anal. Chem., 307, p. 337 
504 |a Pihlar, B., Valenta, P., Nürnberg, H., (1986) J. Electroanal. Chem., 214, p. 157 
504 |a Jin, W., Liu, K., (1985) Acta Chim. Sinica, 43, p. 923 
504 |a Jin, W., Liu, K., (1987) J. Electroanal. Chem., 216, p. 181 
504 |a Wilkinson, C., (1972) Chem. Rev., 72, p. 6 
504 |a Grahame, D.C., (1941) J. Am. Chem. Soc., 63, p. 1207 
504 |a Martell, A., Smith, R., (1977) Critical Stability Constants, Plenum, , New York 
504 |a Wopshall, R.H., Shain, I., (1967) Anal. Chem., 39, p. 1514 
504 |a Damaskin, B., Petrii, O.A., Batrakov, V., (1971) Adsorption of Organic Compounds at Electrodes, , Plenum, New York 
504 |a Gileadi, E., (1967) Electrosorption, , E. Giledi (Ed), Plenum, New York 
504 |a Bard, A.J., Faulkner, L.R., (1980) Electrochemical Methods, , Wiley, New York 
504 |a Conway, B.E., (1965) Theory and Principles of Electrode Processes, , Ronald Press, New York 
504 |a Delahay, P., Trachtenberg, I., (1957) J. Am. Chem. Soc., 79, p. 2355 
504 |a Reinmuth, W., (1961) J. Phys. Chem., 65, p. 473 
520 3 |a The adsorption of the Ni(II) dimethylglyoxime complex, Ni(DMGH)2, on mercury was studied as a function of time by voltammetric and differential capacitance methods in ammonia and borate buffers. The influence of the adsorption potential and the complex concentration was also studied. The adsorption equilibrium shows a reversible behaviour. The experimental data conform to the Frumkin adsorption isotherm. The standard electrochemical Gibbs energy of adsorption and the interaction parameter obtained from the fit indicate the presence of attractive forces between adsorbed molecules and a standard electrochemical Gibbs energy of adsorption comparable with those of pentanol and hexanol. The experimental rate of adsorption, at short times, is independent of time. It is also linearly dependent on the complex concentration and exponentially dependent on the adsorption potential. The experimental rate law can be explained with a model considering the adsorption kinetics as being controlled by the adsorption of the complex.  |l eng 
593 |a DQIAQF, Fac. de Ciencias Exactas y Naturales, Pabellon II, 1428 Buenos Aires, Argentina 
593 |a INIFTA, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Sucursal 4, Casilla de Correo 16, 1900 La Plata, Argentina 
690 1 0 |a ADSORPTION 
690 1 0 |a MERCURY 
690 1 0 |a NICKEL DIMETHYLGLYOXIME COMPLEX 
690 1 0 |a ADSORPTION 
690 1 0 |a ADSORPTION ISOTHERMS 
690 1 0 |a AMMONIA 
690 1 0 |a CYCLIC VOLTAMMETRY 
690 1 0 |a GIBBS FREE ENERGY 
690 1 0 |a MERCURY (METAL) 
690 1 0 |a NICKEL COMPOUNDS 
690 1 0 |a REACTION KINETICS 
690 1 0 |a ADSORPTION POTENTIAL 
690 1 0 |a DIFFERENTIAL CAPACITANCE METHOD 
690 1 0 |a NICKEL DIMETHYLGLYOXIME COMPLEX 
690 1 0 |a ORGANOMETALLICS 
700 1 |a Gordillo, G.J. 
700 1 |a Posadas, D. 
773 0 |d Elsevier, 1996  |g v. 407  |h pp. 219-225  |k n. 1-2  |p J Electroanal Chem  |x 15726657  |t Journal of Electroanalytical Chemistry 
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