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Hydrogen Photo-Production from Glycerol Using Nickel-Doped TiO2 Catalysts: Effect of Catalyst Pre-Treatment
dc.contributor.author | Hidalgo-Carrillo, J. | |
dc.contributor.author | Martín-Gómez, Juan | |
dc.contributor.author | Morales, Julia | |
dc.contributor.author | Espejo, Juan Carlos | |
dc.contributor.author | Urbano Navarro, Francisco José | |
dc.contributor.author | Marinas, Alberto | |
dc.date.accessioned | 2019-09-02T12:22:36Z | |
dc.date.available | 2019-09-02T12:22:36Z | |
dc.date.issued | 2019 | |
dc.identifier.uri | http://hdl.handle.net/10396/18955 | |
dc.description.abstract | In the present piece of research, hydrogen production via the photo-reforming of glycerol (a byproduct from biodiesel generation) is studied. Catalysts consisted of titania modified by Ni (0.5% by weight) obtained through deposition–precipitation or impregnation synthetic methods (labelled as Ni-0.5-DP and Ni-0.5-IMP, respectively). Reactions were performed both under UV and solar irradiation. Activity significantly improved in the presence of Ni, especially under solar irradiation. Moreover, pre-reduced solids exhibited higher catalytic activities than untreated solids, despite the “in-situ” reduction of nickel species and the elimination of surface chlorides under reaction conditions (as evidenced by XPS). It is possible that the catalyst pretreatment at 400 °C under hydrogen resulted in some strong metal–support interactions. In summary, the highest hydrogen production value (ca. 2600 micromole H2·g−1) was achieved with pre-reduced Ni-0.5-DP solid using UV light for an irradiation time of 6 h. This value represents a 15.7-fold increase as compared to Evonik P25. | es_ES |
dc.format.mimetype | application/pdf | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | https://creativecommons.org/licenses/by/4.0/ | es_ES |
dc.source | Energies 12(17), 3351 (2019) | es_ES |
dc.subject | Hydrogen production | es_ES |
dc.subject | Photo-reforming | es_ES |
dc.subject | Glycerol | es_ES |
dc.subject | Ni/TiO2 | es_ES |
dc.title | Hydrogen Photo-Production from Glycerol Using Nickel-Doped TiO2 Catalysts: Effect of Catalyst Pre-Treatment | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.3390/en12173351 | es_ES |
dc.relation.projectID | Gobierno de España. ENE2016-81013-R | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |