Journal
APPLIED CATALYSIS A-GENERAL
Volume 469, Issue -, Pages 541-549Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcata.2013.06.009
Keywords
Ring opening; Bronsted acidity; Bimetallic catalysts; Rh-Pd; Bifunctional catalysts; Methylcyclohexane; Decalin
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Funding
- Bernardo Houssay program
- SECyT-ECOS program [A12E02]
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Monometallic and bimetallic Pd-Rh catalysts with various Rh/Pd atomic ratios (=0.5, 1 and 2) and a total metal charge of 1 wt% supported on SiO2-Al2O3 (SIRAL 40, 20, 5) were studied for the ring opening of methylcyclohexane (MCH). The results were compared with those obtained previously for ring opening of decalin. It was found that the total acidity and the Bronsted acidity of the support have a higher influence on the activity for ring opening of naphthenic bicycles than on the activity for opening single rings. The influence of the metal charge is more important on the reaction of MCH. All the catalysts display a high MCH conversion, which increases with the reaction temperature. The bimetallic catalyst with the Rh/Pd ratio equal to 2 and supported on SIRAL 40 has the highest yield to ring opening products. (C) 2013 Elsevier B.V. All rights reserved.
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