eCite Digital Repository

Increased catalytic activity of cationic palladium(II) complexes on immobilisation in Nafion-H+

Citation

Seen, AJ and Townsend, AT and Bellis, JC and Cavell, KJ, Increased catalytic activity of cationic palladium(II) complexes on immobilisation in Nafion-H+, Journal of Molecular Catalysis A: Chemical, 149, (1-2) pp. 233-242. ISSN 1381-1169 (1999) [Refereed Article]

DOI: doi:10.1016/S1381-1169(99)00180-6

Abstract

Catalytic dimerisation of ethene by [Pd(1,10-phen)2]2+ supported in three forms of Nation has confirmed that diffusion of reactants and/or products through Nation is rate-limiting. However, a combination of low catalyst loading and high dispersion of Nation has resulted in extraordinary increases in ethene dimerisation activities when compared with the homogeneous analogue. Initial activities as high as 760,000 turnovers h-1 have been obtained for the supported complex compared with a homogeneous activity of 32,000 turnovers h-1. These increases in activity most likely result from the very polar, strongly acidic environment in Nation which ensures effective anion-cation separation and promotes labilisation of the nitrogen donor ligands. Enhancements in activities for co-polymerisation of ethene and carbon monoxide, and carbomethoxylation of ethene have also been observed using Nation supported Pd(II) catalysts in methanol.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Other Chemical Sciences
Research Field:Organometallic Chemistry
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Seen, AJ (Dr Andrew Seen)
Author:Townsend, AT (Associate Professor Ashley Townsend)
Author:Bellis, JC (Ms Jane Catherine Bellis)
Author:Cavell, KJ (Professor Kingsley Cavell)
ID Code:16467
Year Published:1999
Web of Science® Times Cited:11
Deposited By:Chemistry
Deposited On:1999-08-01
Last Modified:2011-08-04
Downloads:0

Repository Staff Only: item control page