کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
59995 1419453 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A nanocrystalline MgO support for Ni catalysts for steam reforming of CH4
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
A nanocrystalline MgO support for Ni catalysts for steam reforming of CH4
چکیده انگلیسی

Nanocrystalline MgO with a relatively high surface area and mesoporous structure was synthesized by a surfactant assisted precipitation method for use as the support of nickel catalysts for steam reforming of methane. The samples were characterized by X-ray diffraction, N2 adsorption, temperature-programmed reduction, temperature-programmed oxidation, scanning electron microscopy, and transmission electron microscopy. The catalysts showed high catalytic activity and good stability in the steam reforming of methane. Increasing the nickel loading up to 10 wt% gave increased activity. Catalysts with higher nickel loadings showed more deposited carbon after reaction. The excellent anti-coking performance of the catalysts was attributed to the formation of a nickel-magnesia solid solution, basicity of the support surface, and nickel-support interaction.

A 7% Ni catalyst supported on mesoporous nanocrystalline MgO showed high catalytic stability and low degree of carbon formation in steam reforming of methane for syngas production.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Journal of Catalysis - Volume 34, Issue 7, July 2013, Pages 1443–1448
نویسندگان
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