کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5142549 | 1496034 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of Fe2O3 precursors on physicochemical and catalytic properties of CuO/Fe2O3 system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
CuO/Fe2O3 catalysts were prepared by impregnation method and calcined at 400 °C. The effect of changing the precursors of Fe2O3 and CuO loading on thermal, crystal, surface, spectral and catalytic properties of the catalysts were characterized by TG/DTG/DTA, XRD, N2-adsorption at â196 °C, FT-IR and the catalytic decomposition of H2O2 at 30 °C. The results obtained revealed that the investigated catalysts consisted of nanosized Fe2O3 as a major phase besides CuFe2O4 phase. The precursor of Fe2O3 (nitrate or sulfate) affects the thermal properties of CuO/Fe2O3 system. The SBET of CuO/Fe2O3 system calcined at 400 °C increases with using nitrate precursor of Fe2O3. The catalytic activity of H2O2 decomposition on all CuFeOn catalysts (nitrate precursor) is higher than that of CuFeOs catalysts (sulfate precursor).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Arabian Journal of Chemistry - Volume 9, Supplement 1, September 2016, Pages S678-S684
Journal: Arabian Journal of Chemistry - Volume 9, Supplement 1, September 2016, Pages S678-S684
نویسندگان
Nabil H. Amin, Laila I. Ali, Sahar A. El-Molla, Anwer A. Ebrahim, Hala R. Mahmoud,