English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/98489
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Oxidative dehydrogenation of ethanol over Au/TiO 2 photocatalysts

AuthorsSannino, D.; Vaiano, V.; Ciambelli, P.; Hidalgo, M.C. ; Murcia, J.J.; Navío, José Antonio
Issue Date2012
PublisherScience & Technology Integration
CitationJournal of Advanced Oxidation Technologies 15: 284- 293 (2012)
AbstractAu/TiO 2 photocatalysts were used in ethanol oxidative dehydrogenation. Catalysts at gold loading ranging between 0.5-2 wt.% were synthesized by photodeposition (using different deposition times: 15 and 120 min) over an ownprepared TiO 2 by sol-gel method. For reference purposes, a commercial 1 wt.% Au/TiO 2 catalyst (AUROlite ™, Strem Chemicals) was also tested. Photocatalytic reactions were carried out in a gas-solid photocatalytic fluidized bed reactor. Catalytic activity depends strongly both on Au loading and on the material properties, such as particle size and distribution of metal on titania surface. Acetaldehyde was the main reaction product, with ethylene, crotonaldehyde and CO 2 as by-products. An important improvement of TiO 2 photoactivity was achieved for the catalyst with 0.5 wt.% gold prepared with 120 min deposition time. For an ethanol inlet concentration of 0.2 vol% at 60°C, the maximum conversion and acetaldehyde selectivity were 82% and 95%, respectively. These values are considerably higher than those obtained over pristine TiO 2 and over the commercial catalyst. © 2012 Science & Technology Network, Inc.
Appears in Collections:(ICMS) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.