Title :

Influence of the Surface Termination of Boron-Doped Diamond Electrodes on Oxygen Reduction in Basic Medium

Author(s) :

Szunerits, Sabine [Auteur]
Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces [LEPMI ]
Manesse, Maël [Auteur]
Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces [LEPMI ]
Actis, Paolo [Auteur]
Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces [LEPMI ]
Marcus, Bernadette [Auteur]
Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces [LEPMI ]
Denuault, Guy [Auteur]
Jama, charafeddine [Auteur]
Boukherroub, Rabah [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Institut de Recherche Interdisciplinaire [Villeneuve d'Ascq] [IRI]

Journal title :

Electrochemical and Solid-State Letters

Pages :

pp. G43-G46

Publisher :

Electrochemical Society

Publication date :

2007-05-02

ISSN :

1099-0062

HAL domain(s) :

Chimie/Matériaux

English abstract : [en]

This paper reports on the influence of the surface termination (H-,HO-, NH₂-) of boron-doped diamond (BDD) electrodes on the oxygenreduction reaction (ORR) in alkaline solution. The ...
Show more >This paper reports on the influence of the surface termination (H-,HO-, NH₂-) of boron-doped diamond (BDD) electrodes on the oxygenreduction reaction (ORR) in alkaline solution. The aminated BDD surfacedisplays a higher oxygen reduction current density and a positiveshift in the oxygen reduction potential compared to H- andHO-terminated BDD surfaces. The behavior is most likely due toa preferential adsorption of oxygen species on the NH₂ termination.The ORR mechanism on the H-, HO-, and NH₂-terminated BDDsurfaces was investigated for the first time using electrochemiluminescence (ECL)of luminol. The results indicate that the ORR proceeds viaa two-electron process on H-terminated diamond, while a four-electron pathwayis observed for oxidized and aminated BDD electrodes. We furthershow that the ECL approach can be easily extended toinvestigate the ORR mechanism on different electrodes and composite materials.The influence on the surface termination on the reduction ofoxygen on gold-nanoparticle-modified BDD electrodes has been studied.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL