کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1654298 1007687 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and characterization of nanosized zinc aluminate spinel by sol–gel technique
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Synthesis and characterization of nanosized zinc aluminate spinel by sol–gel technique
چکیده انگلیسی

Nanosized zinc aluminate spinel has been obtained by the thermal decomposition of Zn–Al gel prepared by sol–gel technique using oxalic acid as a chelating agent. Stirring an enthanol solution of zinc nitrate, aluminium nitrate and oxalic acid yields a gel precursor, followed by calcination of the resulting gel at different temperatures. Thermogravimetric analysis (TGA) and Differential scanning calorimetry (DSC) have been used to study the thermal behaviour of the precursor. Powder X-ray diffraction (XRD) show that the sample obtained by heating the precursor at 700 °C for 5 h is single-phase cubic material having the spinel-type structure, which can be confirmed by Infrared spectra (IR). The particle size of 15–20 nm has been measured by transmission electron microscopy (TEM). The specific surface area determined by BET surface area measurement was found to be 58 m2 g−1.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 60, Issue 6, March 2006, Pages 823–827
نویسندگان
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