Please use this identifier to cite or link to this item:
http://hdl.handle.net/10316/5051
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. | URI: | http://hdl.handle.net/10316/5051 | DOI: | 10.1016/j.electacta.2007.01.048 | Rights: | openAccess |
Appears in Collections: | FCTUC Química - Artigos em Revistas Internacionais |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
file9607870cf65b47099c700ff92e001f43.pdf | 532.29 kB | Adobe PDF | View/Open |
WEB OF SCIENCETM
Citations
50
18
checked on Jan 2, 2021
Page view(s)
163
checked on Jan 21, 2021
Download(s)
105
checked on Jan 21, 2021
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.