کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
62165 47624 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Facile preparation of supported noble metal nanoparticle catalysts with the aid of templating surfactants in mesostructured materials
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Facile preparation of supported noble metal nanoparticle catalysts with the aid of templating surfactants in mesostructured materials
چکیده انگلیسی

Quaternary ammonium surfactants were generally used as templates in the synthesis of mesoporous materials, and the surfactants were removed by extraction or calcination to give the space of mesopores. Here with the cetyltrimethylammonium bromide templated mesostructured materials, we directly utilized the surfactants as capturing and stabilizing agents to prepare supported noble metal nanoparticle catalysts. The Pd-supported catalysts exhibited high and stable activity in hydrogenation of allyl alcohol (with a remarkably high turnover frequency of 5676 h−1) and aerobic oxidation of benzyl alcohol. During the recycle use of the catalyst, though surfactants were gradually leached into the reaction medium, the amount of Pd in the catalyst remained constant within experimental error. It is facile and energy-saving to use directly the as-synthesized mesostructured materials as support for noble metal nanoparticles without further calcination or further modification treatment. This method is versatile to prepare other noble metal (such as Au and Pt) supported catalysts by altering the metal precursors.

A facile method was reported to prepare as-synthesized mesostructured material supported Pd catalysts which exhibited high and stable activity in hydrogenation of allyl alcohol.Figure optionsDownload high-quality image (95 K)Download as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Catalysis - Volume 275, Issue 1, 30 September 2010, Pages 140–148
نویسندگان
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