Selective hydrogenation of phenol to cyclohexanone in water over Pd catalysts supported on Amberlyst-45

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• 作者：Mengsi Zhao ; Juanjuan Shi ; Zhaoyin Hou ; ^{zyhou@zju.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Phenol ; Hydrogenation ; Cyclohexanone ; Palladium ; Amberlyst-45 resin ; Supported catalyst
• 刊名：Chinese Journal of Catalysis
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：37
• 期：2
• 页码：234-239
• 全文大小：1899 K

文摘

A series of Pd catalysts were prepared on different supports (Fe₂O₃, SiO₂, ZnO, MgO, Al₂O₃, carbon, and Amberlyst-45) and used in the selective hydrogenation of phenol to cyclohexanone in water. The Amberlyst-45 supported Pd catalyst (Pd/A-45) was highly active and selective under mild conditions (40–100 °C, 0.2–1 MPa), giving a selectivity of cyclohexanone higher than 89% even at complete conversion of phenol. Experiments with different Pd loadings (or different particle sizes) confirmed that the formation of cyclohexanone was a structure sensitive reaction, and Pd particles of 12–14 nm on Amberlyst-45 gave better selectivity and stability.