Gold catalyst recycling study in base-free glucose oxidation reaction
This work is devoted to the study of viability of immobilized gold colloids on carbon as catalysts for the base-free glucose oxidation reaction with a special emphasis made on catalysts’ recycling, operational life and possible routes for deactivation/reactivation under batch conditions. The observe...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2018 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/169340 |
| Acceso en línea: | http://hdl.handle.net/10261/169340 |
| Access Level: | acceso abierto |
| Palabra clave: | Base-free glucose oxidation Gold Recycling Deactivation Activated carbon http://metadata.un.org/sdg/12 Ensure sustainable consumption and production patterns |
| Sumario: | This work is devoted to the study of viability of immobilized gold colloids on carbon as catalysts for the base-free glucose oxidation reaction with a special emphasis made on catalysts’ recycling, operational life and possible routes for deactivation/reactivation under batch conditions. The observed catalytic behavior is related to all possible manners of deactivation, like gold metal state changes (particle size agglomeration or leaching), support modifications or active sites blocking by intermediates. In an attempt to recover the initial catalytic activity, the samples are subjected to different treatments such as HO and NaOH washings and calcination. The failure of the regeneration procedures to recover the initial activity and after detailed catalyst’ characterization allows us to find out the main cause of deactivation. |
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