Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
182510 | Electrochemistry Communications | 2006 | 6 Pages |
Abstract
The electrochemical reduction of oxygen has been studied on gold nanoparticle/multi-walled carbon nanotubes (GNP/MWCNT) modified glassy carbon (GC) electrodes in 0.5 M H2SO4 solution using the rotating disk electrode (RDE) technique. The oxygen reduction behaviour of GNP/MWCNT electrodes was compared with that of a bulk gold electrode. Electrochemical studies indicate that the GNP/MWCNT catalyst shows a remarkable electrocatalytic activity towards O2 reduction in acid media. The RDE results reveal that the reduction of oxygen proceeds by a two-electron pathway at low overpotentials.
Keywords
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Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Nadezda Alexeyeva, Timo Laaksonen, Kyösti Kontturi, Fakhradin Mirkhalaf, David J. Schiffrin, Kaido Tammeveski,