کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
65879 48408 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
MgAl2O4 spinel particles prepared by metal–chitosan complexation route and used as catalyst support for direct decomposition of methane
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
MgAl2O4 spinel particles prepared by metal–chitosan complexation route and used as catalyst support for direct decomposition of methane
چکیده انگلیسی

Magnesium aluminate particles were prepared from biopolymer (chitosan) and Al–Mg solutions by the metal–chitosan complexation method. The MgAl2O4 spinel obtained was used to prepare a Ni catalyst support. The Ni/MgAl2O4 (20% Ni, w/w) was evaluated as a catalyst in the methane decomposition reaction. The influence of the reaction temperature and the catalyst reduction temperature and time on the methane decomposition, as well as on the properties of the carbon produced, was investigated. The materials were characterized using XRD, SEM, TEM, TPR, TGA and Raman spectroscopy analyses. It was observed that the catalytic behavior was dependent on the reaction operating conditions employed. Under the operating conditions used in this study the carbon byproduct is mainly deposited as multi-walled nanotubes (MWNTs).

Figure optionsDownload high-quality image (183 K)Download as PowerPoint slideHighlights
► MgAl2O4 spinel prepared by metal–chitosan complexation route was used as catalyst support.
► The Ni/MgAl2O4 was evaluated as a catalyst in the methane decomposition reaction.
► In the methane decomposition, carbon byproduct was mainly deposited as multi-walled nanotubes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis A: Chemical - Volume 370, April 2013, Pages 22–27
نویسندگان
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