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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”

Abstract

In this work we explore a nanoarchitectonics approach to construct functional composite nanomaterials with enhanced electrocatalytic properties. The functional electrodes were designed in order to combine two key elements: high surface area and porosity with electroactivity, thus enabling its 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 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.

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Publication details

The article was received on 15 Jan 2019, accepted on 08 Apr 2019 and first published on 08 Apr 2019


Article type: Paper
DOI: 10.1039/C9ME00007K
Citation: Mol. Syst. Des. Eng., 2019, Accepted Manuscript

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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”

    A. P. Mártire, G. M. Segovia, O. Azzaroni, M. Rafti and W. A. Marmisollé, Mol. Syst. Des. Eng., 2019, Accepted Manuscript , DOI: 10.1039/C9ME00007K

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