کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
52492 | 46875 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hydrogenation of quinoline by ruthenium nanoparticles immobilized on poly(4-vinylpyridine)
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Hydrogenation of quinoline by ruthenium nanoparticles immobilized on poly(4-vinylpyridine) Hydrogenation of quinoline by ruthenium nanoparticles immobilized on poly(4-vinylpyridine)](/preview/png/52492.png)
چکیده انگلیسی
A series of catalysts composed of ruthenium nanoparticles immobilized on poly(4-vinylpyridine) was prepared by NaBH4 reduction of RuCl3 · 3H2O in methanol in the presence of the polymer; TEM measurements of a 10 wt% Ru/P4VPy material indicate that ruthenium particles of 1–2 nm predominate. This catalyst is efficient for the selective hydrogenation of quinoline to 1,2,3,4-tetrahydroquinoline at 100–120 °C and 30–40 bar H2. The activity increases with hydrogen pressure up to 40 bar but is essentially independent of quinoline concentration. Polar solvents, triethylamine, and acetic acid enhance catalytic performance, suggesting an ionic mechanism involving heterolytic hydrogen activation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 8, Issue 12, December 2007, Pages 2115–2118
Journal: Catalysis Communications - Volume 8, Issue 12, December 2007, Pages 2115–2118
نویسندگان
Roberto A. Sánchez-Delgado, Nataliya Machalaba, Nkechia Ng-a-qui,