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http://hdl.handle.net/2445/170100
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DC Field | Value | Language |
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dc.contributor.author | Alcaide Monterrubio, Francisco | - |
dc.contributor.author | Genova-Koleva, Radostina Vasileva | - |
dc.contributor.author | Álvarez, Garbiñe | - |
dc.contributor.author | Grande, Hans-Jürgen | - |
dc.contributor.author | Miguel, Óscar | - |
dc.contributor.author | Cabot Julià, Pere-Lluís | - |
dc.date.accessioned | 2020-09-02T10:30:20Z | - |
dc.date.available | 2022-01-30T06:10:18Z | - |
dc.date.issued | 2020-01-30 | - |
dc.identifier.issn | 0360-3199 | - |
dc.identifier.uri | http://hdl.handle.net/2445/170100 | - |
dc.description.abstract | This paper studies the catalytic activity of Pt deposited onto Nb-doped titania supports toward the hydrogen evolution reaction (HER). New catalysts based on Nb-doped TiO2 nanoparticles (nNb-TiO2) and Nb-doped TiO2 nanotubes (nNb-TNTs), with n in the range 3-10 at % (Nb+Ti), were synthesized. The specific surface areas of nNb-TNTs were 250−300 m2g-1, about three times higher than those of nNb-TiO2. X-ray diffraction showed the Nb incorporation into the TiO2 lattice with its consequent lattice expansion. The X-ray photoelectron spectra of Pt deposited onto Nb-doped titania revealed a negative charge accumulation on Pt, thus denoting strong metal-support interaction. The electrochemical characterization in acidic media showed that Pt supported on nNb-TiO2 and nNb-TNTs presented better activity towards the HER than that of Pt deposited onto the un-doped supports and commercial Pt on carbon. The best performance was obtained with a small Nb doping of 3 at %. | - |
dc.format.extent | 15 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier Ltd | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1016/j.ijhydene.2020.01.057 | - |
dc.relation.ispartof | International Journal of Hydrogen Energy, 2020, vol. 45, num. 40, p. 20605-20619 | - |
dc.relation.uri | https://doi.org/10.1016/j.ijhydene.2020.01.057 | - |
dc.rights | cc-by-nc-nd (c) Elsevier Ltd, 2020 | - |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es | - |
dc.source | Articles publicats en revistes (Ciència dels Materials i Química Física) | - |
dc.subject.classification | Hidrogen | - |
dc.subject.classification | Nanotubs | - |
dc.subject.other | Hydrogen | - |
dc.subject.other | Nanotubes | - |
dc.title | Platinum-catalyzed Nb-doped TiO2 and Nb-doped TiO2 nanotubes for hydrogen generation in proton exchange membrane water electrolyzers | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 695538 | - |
dc.date.updated | 2020-09-02T10:30:20Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Ciència dels Materials i Química Física) |
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695538.pdf | 2.72 MB | Adobe PDF | View/Open |
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