Adsorptionof Urea on the Gold Electrode and Air/Solution Interface

• Autorzy: Jurkiewicz-Herbich M.
• Języki publikacji: EN

Abstrakty

EN

The adsorption of urea on gold from aqueous 1MLiClO4 has been determined from measurements of cyclic voltammetry and electrochemical impedance spectroscopy. The film pressure and the Gibbs excess are determined as functions of urea concentrations and potential. The standard free energy of adsorption is a quadratic function of charge with maximum adsorption occurring at a charge of +6 mi C cm-2. These data are interpreted in terms of the partially oriented urea dipoles (with the CO group directed towards the metal) and the contribution of water dipoles.

Słowa kluczowe

EN

gold; urea; differential capacity; adsorption

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2005
• Tom: Vol. 79 / nr 9
• Strony: 1513--1524
• Opis fizyczny: Bibliogr. 22 poz., rys.

Twórcy

autor

Jurkiewicz-Herbich M.

• Department of Chemistry, Warsaw University, Pasteura 1, 02-093 Warsaw, Poland

Bibliografia

• 1.Parsons R, Peat R. and Reeves R.M., J. Eleclroanal. Chem., 62 151 (1975).
• 2.ParsonsR, Proc. Roy. Soc., Ser. A, 261, 79(1961).
• 3.Nakamura M., Song M.B. and Ito M., Surf. Sci., 427, 167 (1999).
• 4.Holze R. and Schomaker S., Electrochim. Acta, 35, 613 (1990).
• 5.Słojkowska R., Pałys B. and Jurkiewicz-Herbich M., Electrochim. Acta, 49, 4109 (2004).
• 6.Słojkowska R. and Jurkiewicz-Herbich M., Colloids Surf., 178, 325 (2001).
• 7.Jarząbek G. and Borkowska Z., J. Electroanal. Chem., 226, 295 (1987).
• 8.Jarząbek G., J. Electroanal. Chem., 294, 253 (1990).
• 9.Holze R. and Łuczak T., Electrochim. Acta, 35, 1345 (1990).
• 10.Climent V., Rodes A., Orts J.M. Feliu J.M., Perez J.M. and Aldaz A., Langmuir, 13, 2380 (1997).
• 11.Baugh L.M. and Parsons R., J. Electroanal. Chem., 41,311 (1973).
• 12.Doubova L.M., De Battisti A., Daolio S. and Trasatti S., J. Electroanal. Chem., 500, 134 (2001).
• 13.Hamelin A., Morin S., Richer J. and Lipkowski J., J. Electroanal. Chem., 272, 241 (1989).
• 14.Parsons R. and Payne R, J. Electroanal. Chem., 357, 327 (1993).
• 15.Parsons R., Trans. Faraday Soc., 51, 518 (1955).
• 16.Frumkinv N.N. and Damaskin B.B., in J.O’M. Bockris, B.E. Conway Eds., “Modern Aspects t Electrochemistry, Vol. 3, Butterworths, London, 1964.
• 17.Payne R, Progress in surface and membrane science, Ed., J.F. Danielli, Academic Press, N.Y. 1973.
• 18.Lipkowski J. and Stolberg L., in J. Lipkowski, P.N. Ross (Eds.), Adsorption of molecules at mete electrodes, VCH, New York, 1992, p. 176.
• 19.Schultze J.W. and Vetter K.J., J. Electroanal. Chem., 44, 63 (1973); 53, 67 (1974).
• 20.Schultze J.W. and Vetter K.J., Electrochim. Acta, 19, 913 (1974).
• 21.Schultze J.W. and Rolle D., J. Electroanal. Chem., 552, 163 (2003).
• 22.Parsons R, J. Electroanal. Chem., 5, 397 (1963).