Photogeneration of Hydrogen from Water by Hybrid Molybdenum Sulfide Clusters Immobilized on Titania
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Otros documentos de la autoría: Recatalá Ferrandis, David; Llusar, Rosa; Gushchin, Artem L.; Kozlova, Ekaterina A.; Laricheva, Yuliya A.; Abramov, Pavel A.; Sokolov, Maxim; Gómez, Roberto; Lana-Villarreal, Teresa
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http://dx.doi.org/10.1002/cssc.201402773 |
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Título
Photogeneration of Hydrogen from Water by Hybrid Molybdenum Sulfide Clusters Immobilized on TitaniaAutoría
Fecha de publicación
2015Editor
John Wiley & SonsISSN
1864-5631; 1864-564XCita bibliográfica
RECATALÁ, David, et al. Photogeneration of Hydrogen from Water by Hybrid Molybdenum Sulfide Clusters Immobilized on Titania. ChemSusChem, 2015, vol. 8, no 1, p. 148-157Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://onlinelibrary.wiley.com/doi/10.1002/cssc.201402773/fullVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Two new hybrid molybdenum(IV) Mo3S7 cluster complexes derivatized with diimino ligands have been prepared by replacement of the two bromine atoms of [Mo3S7Br6]2− by a substituted bipyridine ligand to afford heteroleptic ... [+]
Two new hybrid molybdenum(IV) Mo3S7 cluster complexes derivatized with diimino ligands have been prepared by replacement of the two bromine atoms of [Mo3S7Br6]2− by a substituted bipyridine ligand to afford heteroleptic molybdenum(IV) Mo3S7Br4(diimino) complexes. Adsorption of the Mo3S7 cores from sample solutions on TiO2 was only achieved from the diimino functionalized clusters. The adsorbed Mo3S7 units were reduced on the TiO2 surface to generate an electrocatalyst that reduces the overpotential for the H2 evolution reaction by approximately 0.3 V (for 1 mA cm−2) with a turnover frequency as high as 1.4 s−1. The nature of the actual active molybdenum sulfide species has been investigated by X-ray photoelectron spectroscopy. In agreement with the electrochemical results, the modified TiO2 nanoparticles show a high photocatalytic activity for H2 production in the presence of Na2S/Na2SO3 as a sacrificial electron donor system. [-]
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ChemSusChem, 2015, vol. 8, no 1Derechos de acceso
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