کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
52786 | 46887 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hydrogen-assisted dechlorination of 1,2-dichloroethane over silica-supported nickel–ruthenium catalysts
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Silica-supported nickel showed high catalytic activity and selectivity to ethylene in the hydrodechlorination of 1,2-dichloroethane at 230–250 °C. In contrast, Ru/SiO2 showed rather low activity and selectivity to ethylene. Introduction of ruthenium to nickel brings in a considerable increase of the overall activity, with only modest decrease of the ethylene selectivity. Although both metals are practically immiscible in solid state, their mutual interaction in the working state of catalyst is significant. The results are interpreted in terms of surface segregation of nickel which is very likely in light of the theory of segregation in bimetallic systems and substantiated by catalysts characterization.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 8, Issue 1, January 2007, Pages 11–15
Journal: Catalysis Communications - Volume 8, Issue 1, January 2007, Pages 11–15
نویسندگان
Anna Śrębowata, Marta Sadowska, Wojciech Juszczyk, Zbigniew Kaszkur, Zbigniew Kowalczyk, Magdalena Nowosielska, Zbigniew Karpiński,