کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
62768 | 47655 | 2007 | 14 صفحه PDF | دانلود رایگان |
Hydrogenation of crotonaldehyde in a gas phase at atmospheric pressure over Pt/Ga2O3 catalysts was studied. Two types of platinum precursors [Pt(acac)2 and H2PtCl6] and two gallia supports (α-Ga2O3 [60.7 m2/g] and β-Ga2O3 [2.2 m2/g]) were used for catalyst preparation. The catalyst 5 wt% Pt/α-Ga2O3 prepared from Pt(acac)2 precursor showed very high and stable selectivity to crotyl alcohol (91% and 63% at 10% and 70% crotonaldehyde conversion, respectively). Because Pt-supported catalysts, showing a high selectivity, usually have relatively low activity, the most interesting finding of this study is that the use of gallium oxide as a support for platinum makes it possible to obtain catalysts with significantly increased CO bond hydrogenation selectivity while maintaining high activity.
Journal: Journal of Catalysis - Volume 250, Issue 2, 10 September 2007, Pages 195–208