Layer-by-layer integration of conducting polymers and metal organic frameworks onto electrode surfaces: enhancement of the oxygen reduction reaction through electrocatalytic nanoarchitectonics
In this work we explore a nanoarchitectonics approach to construct functional composite nanomaterials with enhanced electrocatalytic properties. Functional electrodes were designed in order to combine two key elements: high surface area and porosity with electroactivity, thus enabling their applicat...
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Autores principales: | , , , , |
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Formato: | Articulo Preprint |
Lenguaje: | Inglés |
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2019
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Materias: | |
Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/127386 |
Aporte de: |
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I19-R120-10915-127386 |
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record_format |
dspace |
institution |
Universidad Nacional de La Plata |
institution_str |
I-19 |
repository_str |
R-120 |
collection |
SEDICI (UNLP) |
language |
Inglés |
topic |
Química Conductive polymer Nanomaterials Electrode Metal-organic framework Materials science Nanoarchitectonics Polyaniline Polystyrene sulfonate Chemical engineering Layer by layer |
spellingShingle |
Química Conductive polymer Nanomaterials Electrode Metal-organic framework Materials science Nanoarchitectonics Polyaniline Polystyrene sulfonate Chemical engineering Layer by layer Mártire, Ana Paula Segovia, Gustavo M. Azzaroni, Omar Rafti, Matías Marmisollé, Waldemar Alejandro Layer-by-layer integration of conducting polymers and metal organic frameworks onto electrode surfaces: enhancement of the oxygen reduction reaction through electrocatalytic nanoarchitectonics |
topic_facet |
Química Conductive polymer Nanomaterials Electrode Metal-organic framework Materials science Nanoarchitectonics Polyaniline Polystyrene sulfonate Chemical engineering Layer by layer |
description |
In this work we explore a nanoarchitectonics approach to construct functional composite nanomaterials with enhanced electrocatalytic properties. Functional electrodes were designed in order to combine two key elements: high surface area and porosity with electroactivity, thus enabling their application to the enhancement of the electrochemical oxygen reduction reaction (ORR). We propose a simple, yet unexplored, layer-by-layer (LbL) method which makes use of sequential assembly of colloidal suspensions of polyaniline/polystyrene sulfonate (Pani-PSS), and polyallylamine hydrochloride-coated ZIF-8 metal organic framework nanocrystals (PAH-ZIF-8). The Pani-PSS/PAH-ZIF-8 nanoarchitecture thus obtained benefits from the synergy between the electroactivity provided by the negatively charged conducting polymer component (Pani-PSS), and the high-surface area porous environment provided by the positively charged MOF counterpart (PAH-ZIF-8). LbL-assembled films were found to be electrically connected and feature promising increases in the electrocatalytic currents obtained for the ORR in neutral pH aqueous environments. |
format |
Articulo Preprint |
author |
Mártire, Ana Paula Segovia, Gustavo M. Azzaroni, Omar Rafti, Matías Marmisollé, Waldemar Alejandro |
author_facet |
Mártire, Ana Paula Segovia, Gustavo M. Azzaroni, Omar Rafti, Matías Marmisollé, Waldemar Alejandro |
author_sort |
Mártire, Ana Paula |
title |
Layer-by-layer integration of conducting polymers and metal organic frameworks onto electrode surfaces: enhancement of the oxygen reduction reaction through electrocatalytic nanoarchitectonics |
title_short |
Layer-by-layer integration of conducting polymers and metal organic frameworks onto electrode surfaces: enhancement of the oxygen reduction reaction through electrocatalytic nanoarchitectonics |
title_full |
Layer-by-layer integration of conducting polymers and metal organic frameworks onto electrode surfaces: enhancement of the oxygen reduction reaction through electrocatalytic nanoarchitectonics |
title_fullStr |
Layer-by-layer integration of conducting polymers and metal organic frameworks onto electrode surfaces: enhancement of the oxygen reduction reaction through electrocatalytic nanoarchitectonics |
title_full_unstemmed |
Layer-by-layer integration of conducting polymers and metal organic frameworks onto electrode surfaces: enhancement of the oxygen reduction reaction through electrocatalytic nanoarchitectonics |
title_sort |
layer-by-layer integration of conducting polymers and metal organic frameworks onto electrode surfaces: enhancement of the oxygen reduction reaction through electrocatalytic nanoarchitectonics |
publishDate |
2019 |
url |
http://sedici.unlp.edu.ar/handle/10915/127386 |
work_keys_str_mv |
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bdutipo_str |
Repositorios |
_version_ |
1764820451649912832 |