| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 62646 | Journal of Catalysis | 2007 | 9 Pages |
Abstract
Gold nanoparticles on a polysaccharide-based support (chitosan) were found to catalyze with very high yields the regioselective hydroamination of alkynes without the need for acid promoters and inert atmosphere. The metal–support interactions were studied by Raman, IR, UV, and NMR spectroscopy. The interaction between gold and the NH and OH groups of chitosan allow good dispersion of the nanocrystals on the biopolymer. The chitosan–silica composite further stabilizes gold nanoparticles against agglomeration or leaching compared with other supports.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Avelino Corma, Patricia Concepción, Irene Domínguez, Vicente Forné, María J. Sabater,