Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/19560
Title: | Spontaneous gold decoration of activated carbons |
Author: | Jarrais, B. Silva, A. R. Ribeiro, L. S. Rodrigues, E. G. Orfao, J. J. M. Pereira, M. F. R. Figueiredo, J. L. Freire, C. |
Keywords: | SURFACE-CHEMISTRY PHASE OXIDATION CATALYSTS GLYCEROL REDUCTION NANOPARTICLES NANOTUBES SIZE XPS |
Issue Date: | 2013 |
Publisher: | ELSEVIER SCIENCE SA |
Abstract: | A novel mild method for the preparation of gold supported on activated carbons was achieved through direct reduction of Au3+ ions onto the surface of two different types of activated carbons, namely a non-functionalized commercial type and a chemically modified activated carbon. The chemically modified activated carbon was obtained by gas phase oxidation of the latter, in order to introduce surface oxygen groups. Geometrical and amorphous gold and gold clusters were formed at the surface of the two types of carbon supports, through a straightforward redox reaction under mild conditions. We demonstrated the catalytic performance of gold supported on activated carbon in the oxidation of glycerol, which presented high activity and selectivity towards the formation of glyceric acid. (c) 2013 Elsevier B.V. All rights reserved. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/19560 |
DOI: | 10.1016/j.ica.2013.07.008 |
ISSN: | 0020-1693 |
Publisher Version: | 10.1016/j.ica.2013.07.008 |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Spontaneous gold decoration of activated carbons_10.1016j.ica.2013.07.008.pdf | 750.18 kB | Adobe PDF |
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