کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5146504 1497373 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Methanol-steam reforming reaction over Cu-Al-based catalysts derived from layered double hydroxides
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Methanol-steam reforming reaction over Cu-Al-based catalysts derived from layered double hydroxides
چکیده انگلیسی
To design efficient Cu-based catalysts for methanol-steam reforming (MSR) reaction, the Cu-Al-based layered double hydroxides (LDHs) substituted with Ni and Zn have been synthesized by the co-precipitation method. The prepared LDHs are calcined at 400 °C to form the mixed oxides and reduced at 250 °C for evaluating their catalytic performance, where water/methanol molar ratio and weight hourly space velocity (WHSV) are 1.1 and 12/h, respectively. These LDH-derived catalysts have also been characterized by XRD, TPR, N2O chemisorption analyses, etc. so that their physicochemical properties corresponding to their catalytic performances have been investigated. The experimental results and characterization data reveal that the reduced Cu-Al mixed oxide (Cu/Al molar ratio = 3) shows the best catalytic performance for MSR because the extremely high dispersion of Cu particles (CuO crystallite size < 10 nm) as well as the largest metallic surface area have successfully been achieved by the suggested preparation method despite of the highest Cu content.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 4, 26 January 2017, Pages 2081-2087
نویسندگان
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