Sajjad Keshipour
Department of Nanochemistry, Nanotechnology Research Centre, Urmia University, Urmia, Iran
[ 1 ] - Chitosan supported bimetallic Pd/Co nanoparticles as a heterogeneous catalyst for the reduction of nitroaromatics to amines
A new bimetallic nanocomposite of chitosan was prepared. Pd and Co nanoparticles were deposited on chitosan to produce a new heterogeneous recyclable catalyst for use in the bimetallic catalytic reduction reaction. The catalyst was characterized with common analysis methods for nanocomposites including Energy Dispersive X-Ray Spectroscopy, X-Ray Diffraction pattern, Thermal Gravimetric Analysis, …
[ 2 ] - Pd and Fe3O4 Nanoparticles Supported on N-(2-Aminoethyl)Acetamide Functionalized Cellulose as an Efficient Catalyst for Epoxidation of Styrene
A new efficient heterogeneous catalyst was introduced for the epoxidation of styrene. The catalyst was obtained from functionalization of cellulose with N-(2-aminoethyl)acetamide, and then deposition of nanoparticles and Pd(0) nanoparticles on the modified cellulose. The Fe3O4 nanoparticles were deposited via chemical oxidation in basic media and Pd(0) nanoparticles were deposited with chemical r…
[ 3 ] - کیتوسان اصلاح شده با کبالت(II) بعنوان کاتالیزوری سبز برای واکنش اکسایش استایرن به استایرن اکساید
کیتوسان بعنوان یک بستر سبز برای کبالت(II) مورد استفاده قرار گرفت. کیتوسان-کبالت(II) بعد از شناسایی با استفاده از روش های مرسوم شامل طیف سنجی مادون قرمز تبدیل فوریه، طیف سنجی جذب اتمی شعله، طیف بینی توزیع انرژی الکترون، پراش پرتو ایکس و وزن سنجی حرارتی بعنوان یک کاتالیزور ناهمگن زیست سازگار در واکنش اکسایش استایرن مورد استفاده قرار گرفت. واکنش در حضورکاتالیزور تهیه شده و سه برابر مولی اکسنده سبز ه…
[ 4 ] - Reduction of Nitroaromatics to Amines with Cellulose Supported Bimetallic Pd/Co Nanoparticles
Pd and Co nanoparticles were deposited on cellulose for use as a heterogeneous catalyst in the bimetallic catalytic reduction reaction. The catalyst was characterized with Energy Dispersive X-Ray Spectroscopy, X-Ray Diffraction pattern, Thermal Gravimetric Analysis, Flame Atomic Absorption Spectroscopy, and Transmission Electron Microscopy, and applied in the reduction reaction of nitroaromat…
[ 5 ] - Synthesis of some Polyol Esters and Diesters Catalyzed with SnO2 and Nano-SnO2
Esterification reactions of some polyols and diols were investigated in the presence of SnO2 and nano-SnO2 and the results were compared with the catalyst-free conditions. High conversions were obtained for most of the reactions in the presence of SnO2 and nano-SnO2 which shows the high catalytic activity of SnO2 and nano-SnO2 …
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