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Título: | Gas phase catalytic hydrodechlorination of chlorobenzene over cobalt phosphide catalysts with different P contents |
Autor: | Cecilia, Juan Antonio; Infantes-Molina, A. CSIC ORCID; Rodríguez-Castellón, Enrique; Jiménez-López, A. CSIC | Palabras clave: | Cobalt phosphide (CoP) Silica Hydrodechlorination Chlorobenzene Transition metal phosphide |
Fecha de publicación: | 15-sep-2013 | Editor: | Elsevier | Citación: | Journal of Hazardous Materials 260: 167-175 (2013) | Resumen: | The gas phase catalytic hydrodechlorination (HDC) of chlorobenzene (CB) at atmospheric pressure was investigated over silica-supported cobalt and cobalt phosphide catalysts containing different P loading and a fixed amount of cobalt (5 wt.%). The effect of the initial P/Co molar ratio on the stoichiometry of the cobalt phosphide phase, the acidity and the hydrogen activation capability were discussed and these properties correlated with the catalytic activity. Catalytic results indicated that the cobalt phosphide phase is much more active than the monometallic cobalt one. The activity raised with the P content present in the sample due to the formation of the CoP phase instead of the Co2P one, which favored the formation of hydrogen spillover species, increased the amount of weak acid sites and the number of exposed superficial cobalt atoms probably related to a better dispersion of the active phase. All the catalysts gave rise benzene as the main reaction product. | Versión del editor: | https://doi.org/10.1016/j.jhazmat.2013.05.013 | URI: | http://hdl.handle.net/10261/182120 | DOI: | 10.1016/j.jhazmat.2013.05.013 | ISSN: | 0304-3894 | E-ISSN: | 1873-3336 |
Aparece en las colecciones: | (ICP) Artículos |
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