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http://hdl.handle.net/2445/207389| Title: | Promoter effect of Ga in Pt/Ga-TiO2 catalysts for the photo-production of H2 from aqueous solutions of ethanol |
| Author: | Cordoba Sola, Alberto Broch Gösser, Mireia Ramírez de la Piscina, Pilar Homs Martí, Narcís |
| Keywords: | Alcohols Catalitzadors Diòxid de titani Alcohols Catalysts Titanium dioxide |
| Issue Date: | 2017 |
| Publisher: | Elsevier B.V. |
| Abstract: | 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. |
| Note: | Versió postprint del document publicat a: https://doi.org/10.1016/j.cattod.2017.01.043 |
| It is part of: | Catalysis Today, 2017, vol. 287, p. 85-90 |
| URI: | http://hdl.handle.net/2445/207389 |
| Related resource: | https://doi.org/10.1016/j.cattod.2017.01.043 |
| ISSN: | 0920-5861 |
| Appears in Collections: | Articles publicats en revistes (Química Inorgànica i Orgànica) |
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