کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
4768789 1424973 2017 9 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Magnetic nanocatalysts of Ni0.5Zn0.5Fe2O4 doped with Cu and performance evaluation in transesterification reaction for biodiesel production
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
سفارش ترجمه تخصصی
با تضمین قیمت و کیفیت
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Magnetic nanocatalysts of Ni0.5Zn0.5Fe2O4 doped with Cu and performance evaluation in transesterification reaction for biodiesel production
چکیده انگلیسی
It was proposed in this work to investigate the Cu2+ ions doping influence in the structure, morphology and magnetic properties of nanoferrites Ni0.5Zn0.5Fe2O4 for their application in methyl transesterification of soybean oil to biodiesel production. The nanoferrites with Ni0.5−xCuxZn0.5Fe2O4 composition (0.0 ⩽ x ⩽ 0.4) were synthesized by combustion reaction using a conical reactor with production of 10 g per batch and characterized by X-ray diffraction, textural analysis by N2 adsorption, magnetic measurements, thermal analysis by temperature-programmed desorption, and biodiesel analysis by gas chromatography. All compositions resulted in the single phase of the inverse spinel type B(AB)2O4 and adsorption/desorption isotherms of the same profile, classified as type V, with hysteresis loop type 3 (H3). However, the increase of Cu ions doping from 0.0 to 0.4 mol caused a reduction of 37% in the surface area values and 36.4% in the saturation magnetization value. However, this reduction remained the ferrimagnetic characteristic and that is still strongly attracted by a magnet. The Cu ions presence has also facilitated an increase of 5.5-85% in the conversion values in methyl esters obtained from soybean oil transesterification. These results indicate the potential application of NiZn nanoferrite compositions doped with Cu2+ as heterogeneous nanocatalysts to produce biodiesel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 191, 1 March 2017, Pages 463-471
نویسندگان
, , , , ,
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
سفارش ترجمه تخصصی
با تضمین قیمت و کیفیت