کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
7709014 1497327 2017 10 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Dry reforming of methane on nickel-chrome, nickel-cobalt and nickel-manganese catalysts
ترجمه فارسی عنوان
ریفرنگ خشکی متان در کاتالیزورهای نیکل کروم، نیکل کبالت و نیکل منگنز
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موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی
Dry reforming of methane was investigated over Ni-based catalysts containing Cr, Mn and Co metals. The materials were synthesized via co-precipitation method and they were calcined at 800 °C in order to obtain the spinel structure NiM2O4. The structural and textural properties were characterized using: XRD, Raman and XPS spectroscopies, BET and SEM-EDX techniques. The reducibility was studied by TPR and HT-XRD techniques under H2 atmosphere. The spinel structure NiM2O4 was confirmed for Ni-Cr and Ni-Mn catalysts by XRD and Raman spectroscopy. In the case of Ni-Co, the results revealed the presence of cobalt oxide Co3O4 with spinel structure and NiO; the NiCo2O4 spinel was not observed. All catalysts were very active in dry reforming of methane with a good H2 selectivity. The best catalytic performance was observed for Ni-Cr system with high CH4 and CO2 conversions (up to 90%), high H2 selectivity (reaching 99%) and with low coke formation (4% of converted CH4).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 50, 14 December 2017, Pages 29725-29734
نویسندگان
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