Aqueous-phase reforming of xylitol over Pt/C and Pt/TiC-CDC catalysts: catalyst characterization and catalytic performance
| Autor: | Anne-Riikka Rautio, Jyri-Pekka Mikkola, Aleksandr Yu. Stakheev, Alexey Kirilin, Tapio Salmi, Leonid M. Kustov, G. O. Bragina, Dmitry Yu. Murzin, Benjamin Hasse, Galina N. Baeva, Bastian J. M. Etzold, Anton V. Tokarev |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Hydrogen
Inorganic chemistry Technische Fakultät chemistry.chemical_element 02 engineering and technology 010402 general chemistry Xylitol 7. Clean energy 01 natural sciences Catalysis chemistry.chemical_compound Cluster (physics) chemistry.chemical_classification Aqueous two-phase system Kemi 021001 nanoscience & nanotechnology 0104 chemical sciences Characterization (materials science) Hydrocarbon chemistry Chemisorption Chemical Sciences 0210 nano-technology ddc:600 |
| Popis: | The aqueous phase reforming (APR) of xylitol was studied over five Pt/C catalysts. The correlation between physico-chemical properties of the catalysts and catalytic performance was established. The Pt/C catalysts have different textural properties as well as different mean Pt cluster sizes and surface acidity. The average Pt cluster size was investigated by means of CO chemisorption as well as by TEM. The reaction was found to be structure sensitive and TOF linearly increases with increasing average Pt cluster size in the studied domain. The catalysts which possess higher surface acidity favoured higher rates of hydrocarbon production. On the contrary the Pt/C materials with lower acidities generated hydrogen with high selectivity and TOF. |
| Databáze: | OpenAIRE |
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