Title
Enhanced hydrogen production by photoreforming of renewable oxygenates through nanostructured <tex>$Fe_{2}O_{3}$</tex> polymorphs Enhanced hydrogen production by photoreforming of renewable oxygenates through nanostructured <tex>$Fe_{2}O_{3}$</tex> polymorphs
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Weinheim ,
Subject
Physics
Source (journal)
Advanced functional materials. - Weinheim
Volume/pages
24(2014) :3 , p. 372-378
ISSN
1616-301X
ISI
000332832500011
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Sunlight-driven hydrogen production via photoreforming of aqueous solutions containing renewable compounds is an attractive option for sustainable energy generation with reduced carbon footprint. Nevertheless, the absence of photocatalysts combining high efficiency and stability upon solar light activation has up to date strongly hindered the development of this technology. Herein, two scarcely investigated iron(III) oxide polymorphs, β- and ε-Fe2O3, possessing a remarkable activity in sunlight-activated H2 generation from aqueous solutions of renewable oxygenates (i.e., ethanol, glycerol, glucose) are reported. For β-Fe2O3 and ε-Fe2O3, H2 production rates up to 225 and 125 mmol h−1 m−2 are obtained, with significantly superior performances with respect to the commonly investigated α-Fe2O3.
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