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cc-by-nc-nd (c) Elsevier Ltd, 2023
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/207642

H2 generation from aqueous ethanol over ZnO nanowires, the photo-transformation of surface species

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ZnO nanowires (NWs) with wurzite structure and a very high [0001] preferred orientation were grown on a ZnO thin film, from a gas-solid process, in the absence of catalyst. ZnO NWs were characterized by FESEM, XRD, HRTEM, XPS, PL and Raman spectroscopy and used as photocatalysts for the photo-transformation of ethanol(aq) in the gas phase. The existence of different defects such as oxygen vacancies was evidenced. The photocatalytic process was followed by in-situ diffuse reflectance infrared spectroscopy (DRIFTS) coupled to on-line mass spectrometry (MS) analysis. The surface species determined during the irradiation (λ = 365 nm) of ZnO NWs under ethanol/water vapor flow at room temperature are related with the hydrogen production and carbon-containing products evolved.

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HOMS MARTÍ, Narcís, et al. H2 generation from aqueous ethanol over ZnO nanowires, the photo-transformation of surface species. International Journal of Hydrogen Energy. 2023. Vol. 53, num. 1303-1309. ISSN 0360-3199. [consulted: 4 of August of 2026]. Available at: https://hdl.handle.net/2445/207642

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