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2017

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cc-by-nc-nd (c) Elsevier B.V., 2017
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/207389

Promoter effect of Ga in Pt/Ga-TiO2 catalysts for the photo-production of H2 from aqueous solutions of ethanol

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Recurs relacionat

https://doi.org/10.1016/j.cattod.2017.01.043

Resum

In this paper, the effect of Ga in Pt/Ga-TiO2 catalysts for photocatalytic H2 production from aqueous solutions of ethanol is studied. The fresh and post-reaction catalysts were characterized using different techniques including BET, XRD, TPR, SEM-EDX, XPS, CO chemisorption and in situ DRIFTS. The presence of Ga in Pt/TiO2-based catalysts increased the Pt dispersion and decreased the relative amount of surface oxidized Pt species. Pt/Ga-TiO2 catalysts showed more stable behaviour during the photocatalytic reaction than the reference Pt/TiO2. The Pt/0.2Ga-TiO2 catalyst showed a higher initial rate of production of H2 and produced a higher total amount of H2 than the monometallic Pt/TiO2. The promoter effect of Ga is analysed in the light of the surface characteristics of the catalysts.

Matèries

Alcohols, Catalitzadors, Diòxid de titani

Matèries (anglès)

Alcohols, Catalysts, Titanium dioxide

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Articles publicats en revistes (Química Inorgànica i Orgànica)

Citació

CORDOBA SOLA, Alberto, et al. Promoter effect of Ga in Pt/Ga-TiO2 catalysts for the photo-production of H2 from aqueous solutions of ethanol. Catalysis Today. 2017. Vol. 287, num. 85-90. ISSN 0920-5861. [consulted: 28 of May of 2026]. Available at: https://hdl.handle.net/2445/207389

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