کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
50548 | 46801 | 2015 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Aqueous-phase hydrogenation of biomass-derived itaconic acid to methyl-γ-butyrolactone over Pd/C catalysts: Effect of pretreatments of active carbon Aqueous-phase hydrogenation of biomass-derived itaconic acid to methyl-γ-butyrolactone over Pd/C catalysts: Effect of pretreatments of active carbon](/preview/png/50548.png)
• The Pd/C catalyst is efficient for itaconic acid hydrogenation.
• The methyl-γ-butyrolactone yield depends on the pretreatment of active carbon.
• The catalysts with carbon copretreated with HNO3 and NaClO show superior activity.
• The yield of methyl-γ-butyrolactone reaches 89.5% over optimized catalyst.
The effect of active carbon pretreatment on the catalytic performance of Pd/C catalysts in the hydrogenation of itaconic acid was studied. The catalysts were prepared by deposition–precipitation and characterized by XRD, BET, NH3-TPD, TEM and FT-IR. Due to the modification of the surface functional groups, surface structure and surface acidities of active carbon via pretreatment, the Pd/C catalysts showed varied catalytic performances. High dispersion and uniform particles were conducive to the excellent activity of Pd/C catalyst with support copretreated with HNO3 and NaClO, which exhibited 89.5% selectivity towards methyl-γ-butyrolactone at 180 °C, 4 MPa H2 for 20 h.
Figure optionsDownload as PowerPoint slide
Journal: Catalysis Communications - Volume 61, 10 February 2015, Pages 92–96