Pd/H-Beta catalysts: Characterization and reactivity in piperonyl alcohol selective oxidation
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- 作者：Olga P. Tkachenko ; Leonid M. Kustov ; Andrey L. Tarasov ; Konstantin V. Klementiev ; Narendra Kumar ; Dmitry Yu. Murzin
- 关键词：Pd/H-Beta zeolites ; XAS ; IR ; TEM ; Piperonyl alcohol oxidation
- 刊名：Applied Catalysis A: General
- 出版年：2009
- 出版时间：15 May 2009
- 年：2009
- 卷：359
- 期：1-2
- 页码：144-150
- 全文大小：501 K
文摘
Pd/H-Beta catalysts with different silica-to-alumina ratio prepared by an impregnation method have been studied by XANES/EXAFS, IR, XRD and TEM. It was shown that palladium in calcined Pd/H-Beta samples exists as palladium oxide that can be easily reduced to Pd metal. The catalysts were tested in selective oxidation of piperonyl alcohol to piperonylaldehyde at 80 °C. The Pd/H-Beta zeolite catalysts with the lowest silica-to-alumina ratio possess the highest catalytic activity in benzylic alcohol oxidation reaction.