Electrochemical nanoarchitectonics through polyaminobenzylamine-dodecyl phosphate complexes: redox activity and mesoscopic organization in self-assembled nanofilms

Molecular design and preparation of redox active films displaying mesoscopic levels of organization represents one of the most actively pursued research areas in nanochemistry. These mesostructured materials are not only of great interest at the fundamental level because of their unique properties b...

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Autores principales: Lorenzo, Agustín, Marmisollé, Waldemar Alejandro, Maza, Eliana María, Ceolín, Marcelo Raúl, Azzaroni, Omar
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2018
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/125275
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id I19-R120-10915-125275
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Química
Polyelectrolyte
Electrochemical energy conversion
Nanotechnology
Nanochemistry
Materials science
Ionic bonding
Nanoarchitectonics
Polyaniline
Polymer
Lamellar structure
spellingShingle Física
Química
Polyelectrolyte
Electrochemical energy conversion
Nanotechnology
Nanochemistry
Materials science
Ionic bonding
Nanoarchitectonics
Polyaniline
Polymer
Lamellar structure
Lorenzo, Agustín
Marmisollé, Waldemar Alejandro
Maza, Eliana María
Ceolín, Marcelo Raúl
Azzaroni, Omar
Electrochemical nanoarchitectonics through polyaminobenzylamine-dodecyl phosphate complexes: redox activity and mesoscopic organization in self-assembled nanofilms
topic_facet Física
Química
Polyelectrolyte
Electrochemical energy conversion
Nanotechnology
Nanochemistry
Materials science
Ionic bonding
Nanoarchitectonics
Polyaniline
Polymer
Lamellar structure
description Molecular design and preparation of redox active films displaying mesoscopic levels of organization represents one of the most actively pursued research areas in nanochemistry. These mesostructured materials are not only of great interest at the fundamental level because of their unique properties but they can also be employed for a wide range of applications such as electrocatalysts, electronic devices, and electrochemical energy conversion and storage. Herein, we introduce a simple and straightforward strategy to chemically modify electrode surfaces with self-assembled electroactive polyelectrolyte-surfactant complexes. These assemblies are composed of amino-appended polyaniline and monododecyl phosphate. The complexes were deposited by spin-coating and the films were characterized by spectroscopic and X-ray-based techniques: XRR, GISAXS, WAXS, and XPS. The films presented a well-defined lamellar structure, directed by the strong interaction between the phosphate groups and the positively charged amine groups in the polyelectrolyte. These films also displayed intrinsic electroactivity in both acidic and neutral solutions, showing that the polymer remains electroactive and ionic transport is still possible through the stratified and hydrophobic coatings. The stability and enhanced electroactivity in neutral solutions make these assembled films promising building blocks for the construction of nanostructured electrochemical platforms.
format Articulo
Preprint
author Lorenzo, Agustín
Marmisollé, Waldemar Alejandro
Maza, Eliana María
Ceolín, Marcelo Raúl
Azzaroni, Omar
author_facet Lorenzo, Agustín
Marmisollé, Waldemar Alejandro
Maza, Eliana María
Ceolín, Marcelo Raúl
Azzaroni, Omar
author_sort Lorenzo, Agustín
title Electrochemical nanoarchitectonics through polyaminobenzylamine-dodecyl phosphate complexes: redox activity and mesoscopic organization in self-assembled nanofilms
title_short Electrochemical nanoarchitectonics through polyaminobenzylamine-dodecyl phosphate complexes: redox activity and mesoscopic organization in self-assembled nanofilms
title_full Electrochemical nanoarchitectonics through polyaminobenzylamine-dodecyl phosphate complexes: redox activity and mesoscopic organization in self-assembled nanofilms
title_fullStr Electrochemical nanoarchitectonics through polyaminobenzylamine-dodecyl phosphate complexes: redox activity and mesoscopic organization in self-assembled nanofilms
title_full_unstemmed Electrochemical nanoarchitectonics through polyaminobenzylamine-dodecyl phosphate complexes: redox activity and mesoscopic organization in self-assembled nanofilms
title_sort electrochemical nanoarchitectonics through polyaminobenzylamine-dodecyl phosphate complexes: redox activity and mesoscopic organization in self-assembled nanofilms
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/125275
work_keys_str_mv AT lorenzoagustin electrochemicalnanoarchitectonicsthroughpolyaminobenzylaminedodecylphosphatecomplexesredoxactivityandmesoscopicorganizationinselfassemblednanofilms
AT marmisollewaldemaralejandro electrochemicalnanoarchitectonicsthroughpolyaminobenzylaminedodecylphosphatecomplexesredoxactivityandmesoscopicorganizationinselfassemblednanofilms
AT mazaelianamaria electrochemicalnanoarchitectonicsthroughpolyaminobenzylaminedodecylphosphatecomplexesredoxactivityandmesoscopicorganizationinselfassemblednanofilms
AT ceolinmarceloraul electrochemicalnanoarchitectonicsthroughpolyaminobenzylaminedodecylphosphatecomplexesredoxactivityandmesoscopicorganizationinselfassemblednanofilms
AT azzaroniomar electrochemicalnanoarchitectonicsthroughpolyaminobenzylaminedodecylphosphatecomplexesredoxactivityandmesoscopicorganizationinselfassemblednanofilms
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