On the role of Fe3+ions in FexOy/C catalysts for hydrogen productionfrom the photodehydrogenation of ethanol

dc.creatorGalindo Hernández, Félix
dc.creatorWang, Jin-An
dc.creatorChen, Lifang
dc.creatorBokhimi, Xim
dc.creatorGómez, Ricardo
dc.creatorPérez Larios, Alejandro
dc.creatorNava Entzana, Noel
dc.date2015-03-11T17:49:07Z
dc.date2015-03-11T17:49:07Z
dc.date2013
dc.date.accessioned2023-07-21T21:38:21Z
dc.date.available2023-07-21T21:38:21Z
dc.identifierGalindo-Hernández, F., Wang, J.-A., Chen, L., Bokhimi, X., Gómez, R., Pérez-Larios, A., & Nava Entzana, N. (2013). On the role of Fe3+ ions in FexOy/C catalysts for hydrogen production from the photodehydrogenation of ethanol. Journal of Hazardous Materials, 263 Pt 1, 11–9. doi:10.1016/j.jhazmat.2013.08.015
dc.identifier 0304-3894
dc.identifierhttp://148.202.112.41:8080/jspui/handle/123456789/158
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7751899
dc.descriptionFexOy/C photocatalysts at different iron content were prepared by the incipient wet impregnation methodand calcined at 773 K. The photocatalysts were characterized by means of nitrogen adsorption–desorptionisotherms, surface fractal dimension, non-local density functional theory, X-ray diffraction, Rietveldrefinement and UV–vis spectroscopy. The photocatalytic activity was evaluated using the photodehy-drogenation of ethanol as a model reaction for the production of hydrogen. The specific surface areasof FexOy/C substrates, with 15, 20 and 30 wt% iron content, diminished from 638 to 490 m2/g, as theiron content increased. X-ray diffraction analysis showed that iron oxides coexist as wustite and mag-netite in samples with Fe contents of 15 and 20 wt%; for sample with 30 wt% Fe, wustite, magnetite andhematite phases were observed. The photophysical, textural and structural properties were modified bythe hematite phase formed by thermal treatment. The Rietveld refinements denoted changes in occu-pancy of Fe3+and Fe2+in FexOycrystallites. A relationship between the Fe3+ions content and the reactivityfor the hydrogen production from the photodehydrogenation of ethanol (from 1360 to 2125 mol h−1),was evidenced.
dc.languageen_US
dc.publisherJournal of Hazardous Materials 263P (2013) 11–19
dc.subjectFexOy/C catalysts
dc.subjecthydrogen production
dc.subjectrietveld analysis
dc.subjectnon-local density functional theory
dc.subjectethanol photodehydrogenation
dc.titleOn the role of Fe3+ions in FexOy/C catalysts for hydrogen productionfrom the photodehydrogenation of ethanol
dc.typeArticle


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