Au-based bimetallic catalysts: how the synergy between two metals affects their catalytic activity - Université de Lille Accéder directement au contenu
Article Dans Une Revue RSC Advances Année : 2019

Au-based bimetallic catalysts: how the synergy between two metals affects their catalytic activity

Résumé

Supported bimetallic nanoparticles are particularly attractive catalysts due to increased activity and stability compared to their monometallic counterparts. In this work, gold-based catalysts have been studied as catalysts for the selective base-free oxidation of glucose. TiO2-supported Au–Pd and Au–Cu series prepared by the sol-immobilization and precipitation-reduction methods, respectively, showed a significant synergistic effect, particularly when the theoretical weight ratio of the two metals was close to 1 : 1 (with an actual experimental bulk Au/Pd molar ratio of ca. 0.8 and ca. 0.4 for Au/Cu) in both cases. XPS analysis showed that the presence of Auδ+, Pd2+ and CuOH species played an important role in the base-free glucose oxidation.

Domaines

Catalyse
Fichier principal
Vignette du fichier
c9ra06001d.pdf (1.72 Mo) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-03025734 , version 1 (26-11-2020)

Licence

Identifiants

Citer

Jin Sha, Sébastien Paul, Franck Dumeignil, Robert Wojcieszak. Au-based bimetallic catalysts: how the synergy between two metals affects their catalytic activity. RSC Advances, 2019, RSC Advances, 9 (51), pp.29888-29901. ⟨10.1039/c9ra06001d⟩. ⟨hal-03025734⟩
21 Consultations
49 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More