PM-IRRA spectroelectrochemistry of hexacyanoferrate films in layer-by-layer polyelectrolyte multilayers

In situ polarization modulation infrared reflection absorption spectroscopy (PM-IRRAS) under potential control is used to study self-assembled layer-by-layer (LbL) poly(allylamine) (PAH) and poly(acrylic acid) (PAA) multilayers containing the hexacyanoferrate redox system on conductive substrates. T...

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Detalles Bibliográficos
Autores principales:	Villalba, Matias Ariel, Calvo, Ernesto Julio
Publicado:	2014
Materias:	Cyanide Hexacyanoferrate Infrared spectroscopy Layer-by-layer Self-assembly Absorption spectroscopy Cyanides Iron compounds Polyelectrolytes Redox reactions Self assembly Spectroelectrochemistry Surface treatment Alternate immersions Conductive substrates Hexacyanoferrates Layer by layer Polyacrylic acids Polyelectrolyte multilayer Potential dependence Self-assembled layers Multilayers
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_21960216_v1_n1_p_Villalba http://hdl.handle.net/20.500.12110/paper_21960216_v1_n1_p_Villalba
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_21960216_v1_n1_p_Villalba
record_format	dspace
spelling	paper:paper_21960216_v1_n1_p_Villalba2025-07-30T19:10:45Z PM-IRRA spectroelectrochemistry of hexacyanoferrate films in layer-by-layer polyelectrolyte multilayers Villalba, Matias Ariel Calvo, Ernesto Julio Cyanide Hexacyanoferrate Infrared spectroscopy Layer-by-layer Self-assembly Absorption spectroscopy Cyanides Infrared spectroscopy Iron compounds Polyelectrolytes Redox reactions Self assembly Spectroelectrochemistry Surface treatment Alternate immersions Conductive substrates Hexacyanoferrates Layer by layer Polyacrylic acids Polyelectrolyte multilayer Potential dependence Self-assembled layers Multilayers In situ polarization modulation infrared reflection absorption spectroscopy (PM-IRRAS) under potential control is used to study self-assembled layer-by-layer (LbL) poly(allylamine) (PAH) and poly(acrylic acid) (PAA) multilayers containing the hexacyanoferrate redox system on conductive substrates. Two systems were examined, which differ in the way the redox complex is entrapped in the LbL polyelectrolyte multilayer: In system I, the LbL polyelectrolyte multilayer, self-assembled by alternate immersion in PAH and PAA, was exchanged in a 2 mm K3Fe(CN)6 solution of pH 3.5 for 30 min and then thoroughly rinsed with water. In system II, the 2 mm K3Fe(CN)6 solution was complexed with PAA prior to self-assembly with PAA. PMIRRAS studies demonstrate the potential dependence of the vibrational modes of the polyelectrolyte backbones and the CN stretching modes, which are sensitive to the redox charge in the iron center. © 2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. Fil:Villalba, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Calvo, E.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_21960216_v1_n1_p_Villalba http://hdl.handle.net/20.500.12110/paper_21960216_v1_n1_p_Villalba
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Cyanide Hexacyanoferrate Infrared spectroscopy Layer-by-layer Self-assembly Absorption spectroscopy Cyanides Infrared spectroscopy Iron compounds Polyelectrolytes Redox reactions Self assembly Spectroelectrochemistry Surface treatment Alternate immersions Conductive substrates Hexacyanoferrates Layer by layer Polyacrylic acids Polyelectrolyte multilayer Potential dependence Self-assembled layers Multilayers
spellingShingle	Cyanide Hexacyanoferrate Infrared spectroscopy Layer-by-layer Self-assembly Absorption spectroscopy Cyanides Infrared spectroscopy Iron compounds Polyelectrolytes Redox reactions Self assembly Spectroelectrochemistry Surface treatment Alternate immersions Conductive substrates Hexacyanoferrates Layer by layer Polyacrylic acids Polyelectrolyte multilayer Potential dependence Self-assembled layers Multilayers Villalba, Matias Ariel Calvo, Ernesto Julio PM-IRRA spectroelectrochemistry of hexacyanoferrate films in layer-by-layer polyelectrolyte multilayers
topic_facet	Cyanide Hexacyanoferrate Infrared spectroscopy Layer-by-layer Self-assembly Absorption spectroscopy Cyanides Infrared spectroscopy Iron compounds Polyelectrolytes Redox reactions Self assembly Spectroelectrochemistry Surface treatment Alternate immersions Conductive substrates Hexacyanoferrates Layer by layer Polyacrylic acids Polyelectrolyte multilayer Potential dependence Self-assembled layers Multilayers
description	In situ polarization modulation infrared reflection absorption spectroscopy (PM-IRRAS) under potential control is used to study self-assembled layer-by-layer (LbL) poly(allylamine) (PAH) and poly(acrylic acid) (PAA) multilayers containing the hexacyanoferrate redox system on conductive substrates. Two systems were examined, which differ in the way the redox complex is entrapped in the LbL polyelectrolyte multilayer: In system I, the LbL polyelectrolyte multilayer, self-assembled by alternate immersion in PAH and PAA, was exchanged in a 2 mm K3Fe(CN)6 solution of pH 3.5 for 30 min and then thoroughly rinsed with water. In system II, the 2 mm K3Fe(CN)6 solution was complexed with PAA prior to self-assembly with PAA. PMIRRAS studies demonstrate the potential dependence of the vibrational modes of the polyelectrolyte backbones and the CN stretching modes, which are sensitive to the redox charge in the iron center. © 2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
author	Villalba, Matias Ariel Calvo, Ernesto Julio
author_facet	Villalba, Matias Ariel Calvo, Ernesto Julio
author_sort	Villalba, Matias Ariel
title	PM-IRRA spectroelectrochemistry of hexacyanoferrate films in layer-by-layer polyelectrolyte multilayers
title_short	PM-IRRA spectroelectrochemistry of hexacyanoferrate films in layer-by-layer polyelectrolyte multilayers
title_full	PM-IRRA spectroelectrochemistry of hexacyanoferrate films in layer-by-layer polyelectrolyte multilayers
title_fullStr	PM-IRRA spectroelectrochemistry of hexacyanoferrate films in layer-by-layer polyelectrolyte multilayers
title_full_unstemmed	PM-IRRA spectroelectrochemistry of hexacyanoferrate films in layer-by-layer polyelectrolyte multilayers
title_sort	pm-irra spectroelectrochemistry of hexacyanoferrate films in layer-by-layer polyelectrolyte multilayers
publishDate	2014
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_21960216_v1_n1_p_Villalba http://hdl.handle.net/20.500.12110/paper_21960216_v1_n1_p_Villalba
work_keys_str_mv	AT villalbamatiasariel pmirraspectroelectrochemistryofhexacyanoferratefilmsinlayerbylayerpolyelectrolytemultilayers AT calvoernestojulio pmirraspectroelectrochemistryofhexacyanoferratefilmsinlayerbylayerpolyelectrolytemultilayers
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PM-IRRA spectroelectrochemistry of hexacyanoferrate films in layer-by-layer polyelectrolyte multilayers

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