Yıldıray ALDEMİR, Elif ANT BURSALI, Muruvvet YURDAKOC

Preparation and characterization of magnetic featured supported heterogeneous catalysts

Organik veya inorganik destek malzemeleri içeren magnezyum ferrit nanoparçacıklı heterojen katalizörler hazırlanmıştır. Katalizörlerin karakterizasyonu X-ışını toz kırınımı (XRD), Fourier dönüşümlü kızılötesi spektroskopi (FTIR), taramalı elektron mikroskop/enerji dağıtıcı spektroskopi (SEM/EDS) ile gerçekleştirilmiştir. Katalizörlerin manyetik özellikleri titreşimli örnek manyetometresi (VSM) ile belirlenmiştir. Katalizörlerin özgül yüzey alanı ve gözenek boyutu dağılımı, 77K'de azot adsorpsiyon-desorpsiyon verilerinden Brunauer-Emmett-Teller (BET) yöntemi ile elde edilmiştir.

Anahtar Kelimeler:

heterojen katalizör, nanoparçacıklar, magnezyum ferrit

Manyetik özellikli desteklenmiş heterojen katalizörlerin hazırlanması ve karakterizasyonu

Magnesium ferrite nanoparticles containing organic or inorganic support materials were preparated as heterogeneous catalysts. The characterization of the catalysts was performed by X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), emission scanning electronic microscope/energy dispersive spectroscopy (SEM/EDS). Magnetic properties of the catalysts were determined by a vibrating sample magnetometer (VSM). Specific surface area and pore size distribution of the catalysts were obtained from nitrogen adsorption-desorption data at 77K by Brunauer-Emmett-Teller (BET) method.

Keywords:

heterogeneous catalysts, nanoparticles, magnesium ferrite,

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