Tuning the co-catalyst loading for the optimization of thermo-photocatalytic hydrogen production over Cu/TiO2
We have optimized the H production by methanol thermo-photocatalytic reforming in the gas phase using Cu/TiO catalyst by tuning metal loading. Metal co-catalyst has been deposited by means of chemical reduction deposition. We have stated that thermo- and thermo-photocatalytic process leads to a nota...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/365290 |
| Acceso en línea: | http://hdl.handle.net/10261/365290 |
| Access Level: | acceso abierto |
| Palabra clave: | Thermo-photocatalysis Gas-phase Hydrogen Cu-TiO2 Water-gas-shift |
| Sumario: | We have optimized the H production by methanol thermo-photocatalytic reforming in the gas phase using Cu/TiO catalyst by tuning metal loading. Metal co-catalyst has been deposited by means of chemical reduction deposition. We have stated that thermo- and thermo-photocatalytic process leads to a notable H production at 200 ºC. By in-situ FTIR studies we evidenced that formate formation follows a different evolution depending on the reforming experiment. These surface formate would lead to CO formation through dehydration reaction. At higher Cu content the low CO selectivity denote that water-gas-shift reaction would predominate and exalt H yield. Thus, different optimum Cu content is found for each reforming experiment. While for the photocatalytic reforming Cu/TiO (2 wt%) is the best catalyst of the series, we should increase the Cu content to Cu/TiO (5 wt%) to achieve the optimum performance for thermo-photocatalytic reforming of methanol. |
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