Microwave Effects on Chemical Functionalization of Hydrogen-Terminated Porous Silicon Nanostructures

• Published in: Journal of physical chemistry. C Vol. 112; no. 42; pp. 16622 - 16628
• Main Authors: Petit, Alain, Delmotte, Michel, Loupy, André, Chazalviel, Jean-Noël, Ozanam, François, Boukherroub, Rabah
• Format: Journal Article
• Language: English
• Published: American Chemical Society 23.10.2008
• Subjects: C: Surfaces, Interfaces, Catalysis
• ISSN: 1932-7447; 1932-7455
• DOI: 10.1021/jp806786s

This article reports on the chemical functionalization of hydrogen-terminated porous silicon (PSi−H) nanostructures with alkenes, aldehydes, and alkyl halides under microwave irradiation. The technique allows for the introduction of different functional groups on the surface. The use of microwave irradiation has a net effect on the hydrosilylation reaction rate. However, no specific microwave effect was observed when the freshly prepared PSi−H surface was modified with an alkene bearing an aldehyde function. The reaction takes place at both the carbon−carbon and the carbon−oxygen double bonds. The polar aldehyde functional group did not show a dominant effect in directing the reaction selectively at the carbonyl group.