کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
49268 46730 2016 4 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Microwave-assisted base-free oxidation of glucose on gold nanoparticle catalysts
ترجمه فارسی عنوان
اکسیداسیون بدون پایه به کمک مایکروویو گلوکز بر روی کاتالیزور نانوذرات طلا
کلمات کلیدی
اکسیداسیون؛ کربوهیدرات ها؛ کاتالیزور ناهمگن؛ طلا؛ مایکروویو شیمی
Oxidation; Carbohydrates; Heterogeneous catalysis; Gold; Microwave chemistry
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی


• Base-free glucose oxidation with gold catalysts was promoted by microwave heating.
• 76% gluconic acid in 10 min with hydrogen peroxide as oxidant
• Very high turn-over frequencies over 10,000 h− 1
• Activity of Au/Al2O3 catalyst remained unchanged during four consecutive runs

Base-free oxidation of glucose to gluconic acid with supported gold catalysts was studied using microwave heating. High conversion and selectivity were obtained in a remarkably shortened reaction time; in 10 min gluconic acid was obtained with up to 76% yields with 0.09 mol% Au/Al2O3 and hydrogen peroxide as oxidant. Very high turn-over frequencies over 10,000 h− 1 were measured for the microwave assisted oxidation. Moreover, the catalyst activity remained constant in four consecutive runs, even though minor particle growth was observed.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 74, 10 January 2016, Pages 115–118
نویسندگان
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