Adsorption and reduction of palladium-dimethylglyoxime complex

The voltammetric reduction of PdII(DMGH)2 preadsorbed on mercury in 0.2 M acetic/acetate buffer (pH 4.85) was studied. Two adsorbed surface stages could be distinguished: while a submonolayer is present molecules adsorb parallel to the electrode, but at high surface concentration perpendicular inter...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Ramirez, Silvana Andrea María, Gordillo, Gabriel Jorge
Publicado:	2009
Materias:	Adsorption Capacitance Dimethylglyoxime Mercury electrode Palladium Stripping voltammetry Electrochemical electrodes Lead Mercury (metal) Molecules Palladium compounds Reduction Stripping (dyes) Voltammetry Adsorbed molecules Adsorbed species Adsorption and reductions Attractive forces Bi layers Complex molecules Dimethylglyoxime complexes Electrochemical behaviours Multilayer formations Rate expressions Sub-monolayer coverages Submonolayer Surface concentrations Voltammetric reductions Surface reactions
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15726657_v629_n1-2_p147_Ramirez http://hdl.handle.net/20.500.12110/paper_15726657_v629_n1-2_p147_Ramirez
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_15726657_v629_n1-2_p147_Ramirez
record_format	dspace
spelling	paper:paper_15726657_v629_n1-2_p147_Ramirez2023-06-08T16:24:46Z Adsorption and reduction of palladium-dimethylglyoxime complex Ramirez, Silvana Andrea María Gordillo, Gabriel Jorge Adsorption Capacitance Dimethylglyoxime Mercury electrode Palladium Stripping voltammetry Adsorption Capacitance Electrochemical electrodes Lead Mercury (metal) Molecules Palladium Palladium compounds Reduction Stripping (dyes) Voltammetry Adsorbed molecules Adsorbed species Adsorption and reductions Attractive forces Bi layers Complex molecules Dimethylglyoxime Dimethylglyoxime complexes Electrochemical behaviours Mercury electrode Multilayer formations Rate expressions Stripping voltammetry Sub-monolayer coverages Submonolayer Surface concentrations Voltammetric reductions Surface reactions The voltammetric reduction of PdII(DMGH)2 preadsorbed on mercury in 0.2 M acetic/acetate buffer (pH 4.85) was studied. Two adsorbed surface stages could be distinguished: while a submonolayer is present molecules adsorb parallel to the electrode, but at high surface concentration perpendicular interactions between adsorbed molecules lead to bilayer or even multilayer formation. The surface charge value obtained for the reduction of a virtual monolayer is QM = 38 μC cm-2. The electrochemical behaviour of adsorbed species under submonolayer coverage is explained in terms of an ErCi surface reaction scheme and a rate expression that takes into account attractive forces between the adsorbed reactant complex molecules. © 2009 Elsevier B.V. All rights reserved. Fil:Ramírez, S.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Gordillo, G.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15726657_v629_n1-2_p147_Ramirez http://hdl.handle.net/20.500.12110/paper_15726657_v629_n1-2_p147_Ramirez
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Adsorption Capacitance Dimethylglyoxime Mercury electrode Palladium Stripping voltammetry Adsorption Capacitance Electrochemical electrodes Lead Mercury (metal) Molecules Palladium Palladium compounds Reduction Stripping (dyes) Voltammetry Adsorbed molecules Adsorbed species Adsorption and reductions Attractive forces Bi layers Complex molecules Dimethylglyoxime Dimethylglyoxime complexes Electrochemical behaviours Mercury electrode Multilayer formations Rate expressions Stripping voltammetry Sub-monolayer coverages Submonolayer Surface concentrations Voltammetric reductions Surface reactions
spellingShingle	Adsorption Capacitance Dimethylglyoxime Mercury electrode Palladium Stripping voltammetry Adsorption Capacitance Electrochemical electrodes Lead Mercury (metal) Molecules Palladium Palladium compounds Reduction Stripping (dyes) Voltammetry Adsorbed molecules Adsorbed species Adsorption and reductions Attractive forces Bi layers Complex molecules Dimethylglyoxime Dimethylglyoxime complexes Electrochemical behaviours Mercury electrode Multilayer formations Rate expressions Stripping voltammetry Sub-monolayer coverages Submonolayer Surface concentrations Voltammetric reductions Surface reactions Ramirez, Silvana Andrea María Gordillo, Gabriel Jorge Adsorption and reduction of palladium-dimethylglyoxime complex
topic_facet	Adsorption Capacitance Dimethylglyoxime Mercury electrode Palladium Stripping voltammetry Adsorption Capacitance Electrochemical electrodes Lead Mercury (metal) Molecules Palladium Palladium compounds Reduction Stripping (dyes) Voltammetry Adsorbed molecules Adsorbed species Adsorption and reductions Attractive forces Bi layers Complex molecules Dimethylglyoxime Dimethylglyoxime complexes Electrochemical behaviours Mercury electrode Multilayer formations Rate expressions Stripping voltammetry Sub-monolayer coverages Submonolayer Surface concentrations Voltammetric reductions Surface reactions
description	The voltammetric reduction of PdII(DMGH)2 preadsorbed on mercury in 0.2 M acetic/acetate buffer (pH 4.85) was studied. Two adsorbed surface stages could be distinguished: while a submonolayer is present molecules adsorb parallel to the electrode, but at high surface concentration perpendicular interactions between adsorbed molecules lead to bilayer or even multilayer formation. The surface charge value obtained for the reduction of a virtual monolayer is QM = 38 μC cm-2. The electrochemical behaviour of adsorbed species under submonolayer coverage is explained in terms of an ErCi surface reaction scheme and a rate expression that takes into account attractive forces between the adsorbed reactant complex molecules. © 2009 Elsevier B.V. All rights reserved.
author	Ramirez, Silvana Andrea María Gordillo, Gabriel Jorge
author_facet	Ramirez, Silvana Andrea María Gordillo, Gabriel Jorge
author_sort	Ramirez, Silvana Andrea María
title	Adsorption and reduction of palladium-dimethylglyoxime complex
title_short	Adsorption and reduction of palladium-dimethylglyoxime complex
title_full	Adsorption and reduction of palladium-dimethylglyoxime complex
title_fullStr	Adsorption and reduction of palladium-dimethylglyoxime complex
title_full_unstemmed	Adsorption and reduction of palladium-dimethylglyoxime complex
title_sort	adsorption and reduction of palladium-dimethylglyoxime complex
publishDate	2009
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15726657_v629_n1-2_p147_Ramirez http://hdl.handle.net/20.500.12110/paper_15726657_v629_n1-2_p147_Ramirez
work_keys_str_mv	AT ramirezsilvanaandreamaria adsorptionandreductionofpalladiumdimethylglyoximecomplex AT gordillogabrieljorge adsorptionandreductionofpalladiumdimethylglyoximecomplex
_version_	1768544657710514176

Adsorption and reduction of palladium-dimethylglyoxime complex

Ejemplares similares