کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
53706 46981 2015 7 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Control of porosity and composition of carbon based catalysts prepared by template assisted routes
ترجمه فارسی عنوان
کنترل تخلخل و ترکیب کاتالیزورهای بر پایه کربن بوسیله مسیرهای کمک شده قالب
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی


• Carbon based catalysts were prepared by template assisted routes.
• The textural properties and the nitrogen content could be varied systematically.
• Activity is affected by the textural properties and nitrogen content, respectively.
• Templated assisted routes are a promising tool to realize a modular concept of carbon catalyst synthesis.

Carbon based catalysts for the oxidative dehydrogenation of ethylbenzene were prepared by a template assisted route. Using that synthesis procedure, the carbons could be modified systematically regarding their surface area and composition (namely the amount of nitrogen). Mesoporous silica and porous concrete, respectively, were used as the hard templates, whereas an aqueous solution of sucrose was the carbon source. Nitrogen was introduced by urea which partially replaced the sucrose in the solution. The materials were characterized by means of nitrogen adsorption at −196 °C, X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and tested as catalysts in the oxidative dehydrogenation (ODH) of ethylbenzene. The catalytic activity was discussed with regard to the textural properties and the nitrogen content in the carbon catalysts.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 249, 1 July 2015, Pages 38–44
نویسندگان
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