کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
210832 461729 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The modification of SiO2 by various organic groups and its influence on the properties of cobalt-based catalysts for Fischer–Tropsch synthesis
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
The modification of SiO2 by various organic groups and its influence on the properties of cobalt-based catalysts for Fischer–Tropsch synthesis
چکیده انگلیسی

SiO2 was modified by various organic groups before the impregnation of cobalt precursor. These modified supports and the corresponding catalysts were characterized by BET, 29Si CP MAS NMR, XRD, Raman, XPS and H2-TPR. These characterizations clearly show the changes of morphology as well as reducibility of the catalysts. The organic modification of SiO2 remarkably influences the reducibility and catalytic properties of Co catalysts. Co catalyst supported on (CH3)3-modified SiO2 exhibits high activity and C5+ hydrocarbon selectivity. However, COOH-, NH2-, and NH2(CH2)2NH-modified SiO2 distinctly suppress the catalytic activity of Co catalysts.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 91, Issue 4, April 2010, Pages 394–398
نویسندگان
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