Anton L. Maximov, Anna V. Zolotukhina, Adela A. Mamedli, Sabina Tairova, Edward A. Karakanov
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引用次数: 0
Abstract
Various heterogeneous bimetallic Ru, Rh, Pd and/or Cu-containing catalysts, based on dendrimer-silica mesoporous hybrid supports, are successfully synthesized, using co-complexation method, and characterized by transmission electron microscopy and X-ray photoelectron spectroscopy. The catalysts obtained are examined in the aqueous hydrogenation of levulinic acid and its esters to γ-valerolactone. The catalyst activity and selectivity on γ-valerolactone are strongly dependent on the nature and ratio of metal used, and PdRu bimetallic catalysts are found to be the most effective. Quantitative or near to quantitative yields of γ-valerolactone can be achieved for all PdRu catalysts and substrates tested within 2 hours, with maximum TOF value of 4500 h−1. Such high efficiency is provided by especial nanoparticle structure, consisted of Pd core and RuPd shell, and synergistic effect between Ru and Pd in alloy.
期刊介绍：
Macromolecular Chemistry and Physics publishes in all areas of polymer science - from chemistry, physical chemistry, and physics of polymers to polymers in materials science. Beside an attractive mixture of high-quality Full Papers, Trends, and Highlights, the journal offers a unique article type dedicated to young scientists – Talent.
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