کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
56303 47081 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation of highly dispersed platinum catalysts on various oxides by using polymer-protected nanoparticles
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Preparation of highly dispersed platinum catalysts on various oxides by using polymer-protected nanoparticles
چکیده انگلیسی

Supported Pt catalysts were prepared by a colloidal deposition method including the photochemical preparation of Pt nanoparticles protected by poly(N-vinyl-2-pyrrolidone) and their deposition by liquid-phase adsorption on the various kinds of supporting materials, TiO2, CeO2, SiO2, Al2O3 and MgO. We investigated the effect of preparation condition on the properties of supported Pt catalysts. The amount of Pt adsorbed and Pt dispersion depended on the kinds of supporting materials. The highest Pt dispersion was obtained when they were deposited on TiO2 (P25). The Pt dispersion did not depend on the pH value of mother liquor and the amount of Pt used in the liquid adsorption process. Pt/TiO2 and Pt/CeO2 showed higher activity for CO oxidation than Pt/Al2O3 and Pt/MgO.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 164, Issue 1, 30 April 2011, Pages 88–91
نویسندگان
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