کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9778085 1510570 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ferrihydrite gels derived in the Fe(NO3)3 · 9H2O-C2H5OH-CH3CHCH2O ternary system
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Ferrihydrite gels derived in the Fe(NO3)3 · 9H2O-C2H5OH-CH3CHCH2O ternary system
چکیده انگلیسی
A study of gel formation in iron(III) nitrate nonahydrate (Fe(NO3)3 · 9H2O)-ethanol (C2H5OH)-1,2-epoxypropane (propylene oxide (CH3CHCH2O)) ternary system has been performed. The phase boundaries for existing ferrihydrite gels were determined. It was shown that this ternary system has two different types of ferrihydrite gel phases. The dominant chemical bonds of these phases were investigated by Fourier transform infrared spectroscopy (FTIR). Both ferrihydrite phases transform to amorphous α-FeOOH phase after 6 h annealing at T = 300 °C. The temperatures of crystallization from these amorphous α-FeOOH phases to α-Fe2O3 phases were found.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 351, Issues 16–17, 1 June 2005, Pages 1426-1432
نویسندگان
, , , , , ,