| Issue |
J. Chim. Phys.
Volume 78, 1981
|
|
|---|---|---|
| Page(s) | 875 - 879 | |
| DOI | https://doi.org/10.1051/jcp/1981780875 | |
| Published online | 29 May 2017 | |
The structure and activity of charcoal supported palladium catalysts Part II. Hydrides phase formation and activity of palladium charcoal catalysts in benzene hydrogenation
1
To whom correspondence should be addressed..
2
Facoltà di Chimica Industriale, Università di Venezia, D.D. 2137, Venezia ( Italy).
3
Istituto di Chimica Fisica, Università di Venezia, D.D. 2137, Venezia, Italy).
Some dependence has been found in turn over number for benzene hydrogenation over various Pd/Charcoal catalysts for metal particles below 40 Ǻ in sizes, approximately. In order to account for the above results attention was paid for their association with β Pd-H hydride appearance during the catalytic process, as detected in situ by X-ray diffraction analysis.
Résumé
La vitesse spécifique de l'hydrogénation du benzène dépend de la taille des particules métalliques du palladium supporté sur charbon en dessous d'une taille critique de 40 Å environ. Pour expliquer ces résultats, une attention particulière a été portée sur l'apparition, durant le processus catalytique, d'un hydrure Pd-H β révélé par diffraction des rayons X.
© Paris : Société de Chimie Physique, 1981