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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Detalles Bibliográficos
Autores principales:	Mártire, Ana Paula, Segovia, Gustavo M., Azzaroni, Omar, Rafti, Matías, Marmisollé, Waldemar Alejandro
Formato:	Articulo Preprint
Lenguaje:	Inglés
Publicado:	2019
Materias:	Química Conductive polymer Nanomaterials Electrode Metal-organic framework Materials science Nanoarchitectonics Polyaniline Polystyrene sulfonate Chemical engineering Layer by layer
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/127386
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-127386
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
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bdutipo_str	Repositorios
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Layer-by-layer integration of conducting polymers and metal organic frameworks onto electrode surfaces: enhancement of the oxygen reduction reaction through electrocatalytic nanoarchitectonics

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