科研之友
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摘要
Core-shell structured support is an effective way in eliminating mass transfer limitation for multiphase hydrogenation reactions. In this study, a downy Al2O3 layer with a specific surface area of 213.7 m(2)/g was generated in situ on Si-Al alloy via facile hot water etching technique. The downy surface is conducive in achieving a satisfactory dispersion of Pd particles with an average size of 5.5 nm. The core-shell structure and the moderate dispersion of Pd on Si-Al@Al2O3 support lead to a higher activity and selectivity in hydrogenation of styrene and consecutive hydrogenation of phenylacetylene than that on commercial Al2O3.
- 出版日期2015-8-5
- 单位中南大学
