Please use this identifier to cite or link to this item:
Title: Oxygen reduction and diffusion in electroactive nanostructured membranes (ENM) using a layer-by-layer dendrimer-gold nanoparticle approach
Authors: Crespilho, Frank N. 
Nart, Francisco C. 
Oliveira Jr., Osvaldo N. 
Brett, Christopher M. A. 
Keywords: Gold nanoparticle electrodes; Electroactive nanostructured membranes; PAMAM dendrimers; Oxygen reduction; Layer-by-layer
Issue Date: 2007
Citation: Electrochimica Acta. 52:14 (2007) 4649-4653
Abstract: The fabrication of an electroactive nanostructured membrane (ENM) for oxygen reduction, made of layer-by-layer (LbL) films comprising Au nanoparticle-containing amine-terminated G4 PAMAM dendrimer alternated with poly(vinylsulfonic acid) (PVS) layers is reported. Electrochemical impedance spectroscopy and cyclic voltammetry show that electrodes with PVS/PAMAM-Au multiple bilayers are efficient for oxygen reduction and diffusion. A linear increase of oxygen reduction current occurs for up to 3 bilayers, with no further significant increase occurring for more than 3 bilayers. The 3-bilayer PVS/PAMAM-Au electrode, as an Au-ENM, is an attractive new system with potential for building diverse electrocatalytic devices with high molecular control.
Rights: openAccess
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais

Files in This Item:
File Description SizeFormat
file9607870cf65b47099c700ff92e001f43.pdf532.29 kBAdobe PDFView/Open
Show full item record

Page view(s)

checked on Jun 2, 2020


checked on Jun 2, 2020

Google ScholarTM


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.