The effect of framework functionality on the catalytic activation of supported Pd nanoparticles in the Mizoroki–Heck coupling reaction - 15/01/17
, Maryam Zare b, Mojtaba Bagherzadeh cBienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
| pages | 9 |
| Iconographies | 7 |
| Vidéos | 0 |
| Autres | 0 |
Abstract |
Palladium nanoparticles (Pd-NPs) were supported on functional and nonfunctional Co-coordination polymers (Pd/CoBDCNH2 and Pd/CoBDC). Advanced analytical techniques revealed that Pd-NPs are supported on the external surface of the polymer framework and the functionalized framework possesses effective influence to prevent Pd-NP aggregation. Supported Pd-NPs were effectively applied as heterogeneous recyclable catalysts in the Mizoroki–Heck C–C cross coupling reactions of iodobenzene and either aromatic or aliphatic terminal alkenes. Catalytic results exhibited that highly dispersed Pd-NPs with low loading (1%) on the functional polymer (Pd/CoBDCNH2) are more effective than aggregated Pd-NPs with high loading (9%) on the nonfunctional polymer (Pd/CoBDC). Both catalysts can simultaneously provide high activity and selectivity to E-coupled products, high efficiency in low amounts, easy separation of heterogeneous catalyst and appropriate performance in the recycling reaction without addition of a reducing agent.
Le texte complet de cet article est disponible en PDF.Keywords : Palladium nanoparticles, Heterogeneous catalyst, Mizoroki–Heck coupling reaction, Nonfunctional coordination polymer, Functionalized framework
Plan
Vol 20 - N° 2
P. 107-115 - février 2017 Retour au numéro
Article précédent
- The synthesis of nano-sized undoped, Bi doped and Bi, Cu co-doped SrTiO3 using two sol–gel methods to enhance the photocatalytic performance for the degradation of dibutyl phthalate under visible light
- Tarek S. Jamil, Hussien A. Abbas, Ahmed M. Youssief, Eman S. Mansor, Fadwa F. Hammad
- Heavy alkali metal-arsenic alloy-based graphite intercalation compounds: Investigation of their synthesis and of their physical properties
- Jamal Assouik, Latifa Hajji, Abdellatif Boukir, Mohammed Chaouqi, Philippe Lagrange
Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’achat d’article à l’unité est indisponible à l’heure actuelle.
Déjà abonné à cette revue ?