PdCu deposited alloys on TiO2 for hydrogen photo-production
The role of a Pd-based co-catalyst supported on a high surface area anatase powder is analyzed for the photo-production of hydrogen from methanol:water mixtures. The co-catalyst chemical composition was modified by replacing palladium atoms with copper. The preparation method renders alloyed particl...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/358248 |
| Acceso en línea: | http://hdl.handle.net/10261/358248 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85164684909&doi=10.1016%2fj.cattod.2023.114280&partnerID=40&md5=913206f929ecd74b5f5ef567e8716239 |
| Access Level: | acceso abierto |
| Palabra clave: | Hydrogen Photocatalysis Methanol:Water Quantum efficiency Pd-Cu alloys |
| Sumario: | The role of a Pd-based co-catalyst supported on a high surface area anatase powder is analyzed for the photo-production of hydrogen from methanol:water mixtures. The co-catalyst chemical composition was modified by replacing palladium atoms with copper. The preparation method renders alloyed particles with a primary particle size in the 5–6 nm interval. A Pd:Cu 3:1 ratio promotes strongly the activity of the noble metal. According to the quantum efficiency parameter, the Pd:Cu 3:1 alloy increases by ca. 2 the activity of the monometallic Pd counterpart. The analysis of the photoactivity points out that alloying does not affect positively charge recombination and handling © 2023 The Authors |
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