Influence of Support Material on the Activity and Selectivity of Pt–Ir Catalysts for Ring Opening Reactions
| Autor: | María Amparo Sánchez, Maria Ana Vicerich, V. M. Benitez, Carlos Luis Pieck |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Pt-Ir
Inorganic chemistry Ring opening General Chemistry INGENIERÍAS Y TECNOLOGÍAS Ring (chemistry) Catalysis Metal Ingeniería Química chemistry.chemical_compound Decalin chemistry Hydrogenolysis visual_art Otras Ingeniería Química visual_art.visual_art_medium Bifunctional catalysts Organic chemistry Dehydrogenation Selectivity Organometallic chemistry |
| Popis: | The influence of the supports (Al2O3, TiO2 and SiO2) on the activity and selectivity of Pt-Ir catalysts for the ring opening of decalin was studied. It was found that the properties of the supports strongly influence the distribution, size and Pt-Ir interaction of the metal particles. They therefore also influence the catalytic activity for reactions like dehydrogenation and hydrogenolysis, but also specifically the activity for ring opening reactions of naphthenes. Via their acid sites the supports influence ring opening reactions although the effect is not very marked on conversion because the acidity differences are not very significant among them. The results show that the highest decalin conversion for three different supports, alumina, silica and titania, is obtained with the catalysts of highest metal loading. The best selectivity to ring opening products is obtained with Pt-Ir(1.0)/Al2O3 catalyst. Moreover this catalyst shows the highest performance for MCP ring opening. Fil: Vicerich, Maria Ana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina Fil: Benitez, Viviana Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina Fil: Sánchez, María Amparo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina Fil: Pieck, Carlos Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina |
| Databáze: | OpenAIRE |
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