Titre :

Effect of gradual reduction of graphene oxide on the CO tolerance of supported platinum nanoparticles

Auteur(s) :

Abidat, I. [Auteur]
Morais, C. [Auteur]
Pronier, Stéphane [Auteur]
Guignard, Nadia [Auteur]
Comparot, J.D. [Auteur]
Canaff, C. [Auteur]
Napporn, T.W. [Auteur]
Habrioux, A. [Auteur]
Mamede, Anne-Sophie [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Lamonier, Jean-Francois [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Kokoh, K.B. [Auteur]

Titre de la revue :

Carbon

Numéro :

111

Pagination :

849-858

Date de publication :

2017-01

Discipline(s) HAL :

Chimie/Catalyse

Résumé en anglais : [en]

Gradually reduced graphene oxide materials were successfully synthesized by performing successive chemical treatments on graphite oxide synthesized using Hummers' method. These materials were deeply characterized using ...
Lire la suite >Gradually reduced graphene oxide materials were successfully synthesized by performing successive chemical treatments on graphite oxide synthesized using Hummers' method. These materials were deeply characterized using complementary spectroscopic techniques (X-ray induced photoelectron spectroscopy, UV- spectroscopy, Fourier transform infrared spectroscopy and Raman spectroscopy). It was shown that reduction processes allow removing oxygenated functional groups. Nevertheless, defects in the carbon structure materials formed subsequently to the oxidation step remain after such reducing treatments. CO stripping coupled with in-situ Fourier transform infrared spectroscopy measurements revealed that the reduction extent of the carbon-based materials affects the electron density on Pt thus engendering modifications in the adsorption strength of CO molecule.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

ENSCL
CNRS
Centrale Lille
Univ. Artois
Université de Lille

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Équipe(s) de recherche :

Matériaux pour la catalyse (MATCAT)
Remédiation et matériaux catalytiques (REMCAT)

Date de dépôt :

2019-09-25T14:05:02Z
2021-06-15T13:06:52Z