کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1695882 1011879 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cobalt salophen complex immobilized into montmorillonite as catalyst for the epoxidation of cyclohexene by air
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات ژئوشیمی و پترولوژی
پیش نمایش صفحه اول مقاله
Cobalt salophen complex immobilized into montmorillonite as catalyst for the epoxidation of cyclohexene by air
چکیده انگلیسی

Cobalt salophen (N, N′-bis (salicylidene)o-phenylenediamine) complex was immobilized in the montmorillonite. The montmorillonite was characterised by atomic absorption spectroscopic (AAS) analysis, Fourier transform infrared (FT-IR), diffuse reflectance UV–vis, powder-X-ray-diffraction (PXRD) and X-ray photoelectron spectroscopy (XPS) measurements. The catalytic activity of the novel cobalt salophen based materials was tested in the epoxidation of cyclohexene in the isobutyraldehyde/air system using acetonitrile as solvent and very high TOF value (10.1 min− 1) was obtained. Various reaction conditions were studied. The experimental results indicated very good catalytic activity and selectivity in the epoxidation of cyclohexene. Repeated runs of the catalysts were carried out five times and the results indicated that the catalyst was stable for the epoxidation of cyclohexene.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Clay Science - Volume 45, Issue 3, July 2009, Pages 117–122
نویسندگان
, , , , , ,