Selectivity tuning options in hydrogenation of m-chloronitrobenzene to m-chloroaniline over mono- and bimetallic supported Pt catalysts / Rasika B. Mane in Industrial & engineering chemistry research, Vol. 51 N° 48 (Décembre 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 48 (Décembre 2012) . - pp. 15564-15572 Titre : Selectivity tuning options in hydrogenation of m-chloronitrobenzene to m-chloroaniline over mono- and bimetallic supported Pt catalysts Type de document : texte imprimé Auteurs : Rasika B. Mane, Auteur ; Aparna S. Potdar, Auteur ; Jayprakash M. Nadgeri, Auteur Année de publication : 2013 Article en page(s) : pp. 15564-15572 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : 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 [article] Selectivity tuning options in hydrogenation of m-chloronitrobenzene to m-chloroaniline over mono- and bimetallic supported Pt catalysts [texte imprimé] / Rasika B. Mane, Auteur ; Aparna S. Potdar, Auteur ; Jayprakash M. Nadgeri, Auteur . - 2013 . - pp. 15564-15572. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 48 (Décembre 2012) . - pp. 15564-15572 Mots-clés : 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

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