کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
49819 46768 2016 4 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Recyclable, green and efficient epoxidation of olefins in water with hydrogen peroxide catalyzed by polyoxometalate nanocapsule
ترجمه فارسی عنوان
اپوکسید شدن قابل بازیافت، سبز و کارآمد الیافین ها در آب با پراکسید هیدروژن کاتالیز شده توسط نانوکپسول پلی اکسوماتات
کلمات کلیدی
پلیوکسی متیللات کپلر؛ کاتالیزوری؛ اپوکسی کردن؛ آب اکسیژنه؛ آلکینز
Keplerate polyoxometalates; Catalysis; Epoxidation; Hydrogen peroxide; Alkenes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی


• PMo ⊂ Mo72Fe30 showed a high catalytic activity for the epoxidation of various alkenes with H2O2.
• For different alkenes, 99% selectivity to epoxide and 97–99% efficiency of H2O2 were observed.
• PMo ⊂ Mo72Fe30 exercised an excellent catalytic activity, stability and reusability.

A practical method for the selective epoxidation of alkenes was discovered using HxPMo12O40 ⊂ H4Mo72Fe30(CH3COO)15O254 as a catalyst in the presence of H2O2 as a green oxidant. However, the simple catalyst system involving polyoxometalates and H2O2 exercised the most successful system in obtaining high to excellent yields of epoxide products for different alkenes, including aromatic and aliphatic alkenes at room temperature in water. The effectiveness of this catalyst is evidenced by 99% selectivity to epoxide and 97–99% efficiency of H2O2 utilization. The stability of PMo ⊂ Mo72Fe30 under a catalytic reaction has been confirmed by XRD, FT-IR and Raman spectroscopies.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 78, 10 March 2016, Pages 64–67
نویسندگان
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