Behzad Aghabarari
Department of Nanotechnology and Advanced Material, Materials and Energy Research Center (MERC), P.O. Box 14155-4777, Tehran, I. R. IRAN
[ 1 ] - Room Temperature Synthesis of Mequinol by Using Ionic Liquids as Homogeneous Recyclable Catalysts
For the synthesis of Mequinol (4-methoxy phenol), two acidic ionic liquids based on imidazolium cation (BMSIL and IMSIL) synthesized and characterized by FT-IR, 1H NMR, and CHNS analyses. Tan, the Baeyer–Villiger oxidation of para-anisaldehyde was studied with these ionic liquids, as the catalysts. The results showed that the BMSIL with more Brønsted acidic functions had higher c...
[ 2 ] - اکسایش بنزیل الکل به بنزآلدهید تحت شرایط بدون حلال با استفاده از نانوذرات مخلوط روتنیوم-سریم اکسید
در این مطالعه، ترکیب سریم اکسید و مخلوط روتنیوم- سریم اکسید با استفاده از روش رسوبگذاری در محیط قلیایی و نانوذرات مخلوط روتنیوم- سریم اکسید با استفاده از روش مایسل معکوس سنتز گردیدند. تمامی نمونهها با استفاده از روشهای XRD و BET شناسایی گردیدند. اندازه نانوذرات به‌دست آمده با استفاده از تصاویر TEM اندازه‌گیری گردید. در مرحله بعد فعالیت کاتالیزوری نمونههای سنتزی در واکنش اکسایش بنزیل الکل در...
[ 3 ] - Biodiesel Production Using Hybrid Amino Functionalized Chitosan-carbon Support as Green Catalyst
In this study, Functionalized chitosan with amine groups was synthesized and coated on the surface of carbon black. The hybrid amino functionalized chitosan-carbon support was employed as an efficient, environmentally friendly heterogeneous catalyst for the transesterification reaction of canola oil and methanol. It was observed that this hybrid was more active than parent polymer at the reaction...
[ 4 ] - Immobilizing Phosphotungstic Acid on Al2O3-ZnO Nano Mixed Oxides as Heterogeneous Catalyst for Biodiesel Production by Esterification of Free Fatty Acids
In this study, esterification reaction of different carboxylic acids (Acetic acid, Palmitic acid, Oleic acid) with ethanol was investigated by ZnO, Al2O3-ZnO mixed oxide and phosphotungestic acid (10 %wt) immobilized on the Al2O3-ZnO mixed oxide. The heterogeneous catalysts were characterized by XRD, BET, FE-SEM and EDX techniques. Optimum yield was achieved by using 10% HPW/Al2O3-ZnO as the be...
نویسندگان همکار