Saber UCV
Repositorio Institucional
Repositorio Institucional
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https://saber.ucv.ve/handle/10872/11540
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| Title: | Perovskite-type oxides in methane dry reforming: Effect of their incorporation into a mesoporous SBA-15 silica-host |
| Authors: | Rivas, Issarly Alvarez, Juan Pietri, Eglé Pérez Zurita, M. Josefina Goldwasser, Mireya |
| Keywords: | Perovskite-type oxides Ni-based catalysts SBA-15 mesoporous silica Methane dry reforming Syngas production |
| Issue Date: | 21-Jul-2015 |
| Abstract: | A series of Ni-based perovskite-type oxides LaNiO3, La0.8Ca0.2NiO3 and La0.8Ca0.2Ni0.6Co0.4O3, were synthesized as catalyst precursors both bulk and built-in a highly ordered mesoporous SBA-15 silicahost with the aim of using them as heterogeneous catalysts in syngas production by the methane dry reforming with CO2. The solids were characterized by means of FT-IR, XRD, BET surface area and TPR techniques. All synthesized oxides showed a perovskite-type structure. Incorporation of the oxides into the mesoporous silica-host generates a higher metal–support interaction increasing the Ni reduction temperature. A decrease in CH4 and CO2 conversion was observed when a second cation in A- and/or Bsite was added to the bulk perovskite. The built-in of these solids in the SBA-15 mesoporous silica-host allows working at lower temperature with an increase in conversions and selectivity towards syngas which represent an attractive perspective for industrial application. |
| URI: | http://hdl.handle.net/10872/11540 |
| ISSN: | 0920-5861 |
| Appears in Collections: | Artículos Publicados |
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