کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
68463 48514 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation and evaluation of porous nickel-alumina spheres as catalyst in the production of hydrogen from decomposition of methane
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Preparation and evaluation of porous nickel-alumina spheres as catalyst in the production of hydrogen from decomposition of methane
چکیده انگلیسی

This paper presents the synthesis of Al2O3 and Ni-doped Al2O3 spherical catalysts, developed by our group, with porous structures and high surface areas. The catalytic activity of the materials obtained was evaluated in the catalytic decomposition of methane, which is an attractive method for CO/CO2-free production of hydrogen, particularly for fuel cell applications. The catalysts were shown to be active and stable in relation to the catalytic decomposition of methane reaction. After the catalytic tests, characterization of the deposited carbon was carried out by transmission electron microscopy, scanning electron microscopy and Raman spectroscopy. The analyses indicated the presence of single-walled nanotubes (SWNTs) and multiwalled nanotubes (MWNTs). It was observed that the catalytic behaviour and the form of carbon produced depend on the characteristics of the sites present on the catalyst surface and on the operational conditions employed.

This paper presents the synthesis of Al2O3 and Ni-doped Al2O3 spherical catalysts. The catalytic activity of the materials obtained was evaluated in the catalytic decomposition of methane. The catalysts were shown to be active and stable in relation to the catalytic decomposition of the methane reaction. After the catalytic tests, characterization of the deposited carbon was carried out and the analyses indicated the presence of single-walled nanotubes and multiwalled nanotubes. It was observed that the catalytic behaviour and the form of carbon produced depend on the characteristics of the sites present on the catalyst surface and on the operational conditions employed. Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis A: Chemical - Volume 259, Issues 1–2, 15 November 2006, Pages 328–335
نویسندگان
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