| Titre : | Selectivity tuning options in hydrogenation of m-chloronitrobenzene to m-chloroaniline over mono- and bimetallic supported Pt catalysts (2013) |
| Auteurs : | Rasika B. Mane, Auteur ; Aparna S. Potdar, Auteur ; Jayprakash M. Nadgeri, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 51 N° 48, Décembre 2012) |
| Article en page(s) : | pp. 15564-15572 |
| Note générale : | Industrial chemistry |
| Langues : | Anglais |
| Tags : | Catalyst Hydrogenation |
| Résumé : | Supported monometallic (Pt, Ni,) and bimetallic (Ni―Pt) catalysts were prepared for the selective liquid phase nydrogenation ot m-chlronitrobenzene to m-chloroaniline (m-CAN). It was found that the use of sodium carbonate as an additive substantially reduced the extent of dehydrohalogenation in the case of monometallic, 1% Pt/C catalyst, to give the highest selectivity of 96% to m-CAN. Ni—Pt bimetallic catalyst although showed almost complete selectivity (>99%) to mchloroaniline; its activity was several fold lower than that of 1% Pt/C―Na2CO3 system. However, compared with Ni monometallic catalyst, bimetallic Ni-Pt showed higher activity and selectivity due to the presence of electron rich surface metallic Pt stabilized by Ni having lower ionization potential compared with Pt. |
| ISSN : | 0888-5885 |
| En ligne : | http://cat.inist.fr/?aModele=afficheN&cpsidt=26710594 |
