کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
62656 47649 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sulfonic acid-functionalized silica-coated magnetic nanoparticle catalysts
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Sulfonic acid-functionalized silica-coated magnetic nanoparticle catalysts
چکیده انگلیسی

Four different sulfonic acids are grafted onto silica-coated magnetic nanoparticle supports, yielding magnetic, solid acid catalysts. The hybrid organic/inorganic sulfonic acid catalysts are evaluated in test reactions in terms of activity and recyclability and compared with commercially available heterogeneous acidic resins and homogeneous sulfonic acids. The magnetic, solid acid catalysts exhibit comparable activity to the other commercial and homogeneous catalysts. Recovery tests confirm the presence of surface-bound sulfonic acid functionalities in three of the four catalysts. These results illustrate the utility of magnetic nanoparticles as a heterogeneous support for the simple recovery of sulfonic acid catalysts.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Catalysis - Volume 251, Issue 1, 1 October 2007, Pages 145–152
نویسندگان
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