Journal
APPLIED CATALYSIS A-GENERAL
Volume 379, Issue 1-2, Pages 38-44Publisher
ELSEVIER
DOI: 10.1016/j.apcata.2010.02.028
Keywords
Metal nanoparticles; Microwave irradiation; Cu; Transfer hydrogenation
Categories
Funding
- Japan Society for Promotion of Science/Japan Fine Ceramic Center (JSPS/JFCC)
- Ministerio de Educacion y Ciencia and Fundacion Espanola para la Ciencia y Tecnologia
- Ministerio de Ciencia e Innovacion for the concession of a Ramon y Cajal [RYC-2009-04199]
- University of York, Yorkshire Forward/EU
- JEOL
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Highly active and dispersed copper (Cu) nanoparticles on mesoporous silicas have been prepared via microwave irradiation of a solution of copper precursors with a previously synthesized mesoporous hexagonal silica (HMS) support. The protocol allowed differently low-loaded (typically 0.5 wt%) Cu materials containing Cu metal and small quantities of metal oxides. Materials were then tested as catalysts in the hydrogenation of carbonyl compounds under microwave irradiation. Cu materials were found to be highly active, selective and reusable in the reduction of substituted aromatic ketones and aldehydes, providing quantitative conversion of starting material within 5-10 min reaction at mild reaction conditions with complete selectivity to the alcohols. (C) 2010 Elsevier B.V. All rights reserved.
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