1. Dendrimer-Stabilized Ru Nanoparticles Immobilized in Organo-Silica Materials for Hydrogenation of Phenols.
- Author
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Karakhanov, Eduard, Maximov, Anton, Zolotukhina, Anna, Mamadli, Adila, Vutolkina, Anna, and Ivanov, Andrey
- Subjects
DENDRIMERS ,RUTHENIUM ,NANOPARTICLES ,HYDROGENATION ,PHENOLS ,MESOPOROUS silica ,CATALYSTS recycling - Abstract
New hybrid catalysts based on Ru nanoparticles, encapsulated into poly(propylene imine dendrimers), immobilized into silica pores, were synthesized and examined for the hydrogenation of alkyl-substituted phenols. The corresponding alkyl-substituted cyclohexanols were presented as the major reaction products, while incomplete hydrogenation products appeared to be minor. A competition between the sterical factors of dendrimer-containing carriers and the electronic factors of substrate substituents influenced the hydrogenation rate of the alkyl-substituted phenols. The carrier structure was found to have a significant influence on both the physical and chemical properties of the catalysts and their hydrogenation activity. The synthesized hybrid catalysts appeared to be stable after recycling and could be re-used several times without significant loss of activity. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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