کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10246973 | 48554 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Stereoselective hydrogenation of phenyl alkyl acetylenes on pillared clays supported palladium catalysts
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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چکیده انگلیسی
The stereoselective hydrogenation of phenyl alkyl acetylenes at 298Â K and atmospheric pressure of hydrogen over Pd-supported catalysts has been studied. The catalysts were prepared by impregnation of Al-PILC and Ca-Mont with Pd(acac)2 precursor, with a metal content close to 1Â wt %. All the solids were characterised by nitrogen adsorption-desorption isotherms at 77Â K, TPR, H2 and CO chemisorption, XRD and TEM measurements. The reactions were found to be zero order concerning the alkyne concentration. All catalysts displayed high selectivity to cis-alkene isomer being the 1%Pd/Al-PILC the most active catalyst.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis A: Chemical - Volume 226, Issue 1, 1 February 2005, Pages 81-88
Journal: Journal of Molecular Catalysis A: Chemical - Volume 226, Issue 1, 1 February 2005, Pages 81-88
نویسندگان
N. MarÃn-Astorga, G. Alvez-Manoli, P. Reyes,