کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
64641 48364 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of polymeric stabilizers on Fischer–Tropsch synthesis catalyzed by cobalt nanoparticles supported on TiO2
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Effect of polymeric stabilizers on Fischer–Tropsch synthesis catalyzed by cobalt nanoparticles supported on TiO2
چکیده انگلیسی

A series of colloidal cobalt nanoparticles of ca. 2.6 nm stabilized by several polymeric stabilizers were synthesized in water using sodium borohydride as reducing agent and subsequently immobilized on TiO2. Both colloidal and TiO2 supported NPs were characterized by TEM, HRTEM, XRD, XPS, TGA and ICP techniques and the catalytic performance of the supported NPs evaluated in the Fischer–Tropsch synthesis. Important differences in terms of activity were observed depending on the polymeric stabilizers used for the synthesis of the CoNPs. These differences were correlated with the catalyst reducibility, the presence of polymer stabilizer and boron and the reduction degree at the metal surface. From the tested catalysts, the NPs prepared in the presence of poly(2-ethyl-2-oxazoline) as stabilizer resulted to be the most active of the series, which was correlated with the higher reducibility of this catalyst.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis A: Chemical - Volume 417, June 2016, Pages 43–52
نویسندگان
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