کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
49520 46751 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cesium salts of manganese based lacunary phosphotungstate supported mesoporous silica: An efficient catalyst for solvent free oxidation reaction
ترجمه فارسی عنوان
نمک های سزیم از فسفودونگارتات لاکوناری مبتنی بر منگنز پشتیبانی سیلیکا مزپوروس: یک کاتالیزور کارآمد برای واکنش اکسیداسیون آزاد حلال
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی


• Cs salt of Mn (II)-substituted a mono-lacunary phosphotungstate supported MCM-41.
• Excellent solvent free conversion of benzyl alcohol with catalyst
• Good yield of benzaldehyde
• Stable, recyclable and reusable catalyst

Keggin-type Cs salt of Mn (II)-substituted mono-lacunary phosphotungstate supported on mesoporous silica, a novel catalyst exhibited excellent activity towards solvent free oxidation reactions. The catalyst materials were fully characterized by different techniques including XRD, BET analysis, TG–DTA, Raman spectra, FT-IR and XPS. While XPS study shown the presence of Mn (II) on the material, the existence of Keggin structure even after modification was confirmed by XRD and FT-IR data. Excellent conversion and selectivity were achieved in selective oxidation of benzyl alcohol to benzaldehyde. Optimum reaction conditions were established with respect to various parameters that influence the selective oxidation.

The 50 wt.% LMn@MCM-41 was found to be an excellent catalyst towards oxidation reaction under solvent free conditions.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 59, 10 January 2015, Pages 73–77
نویسندگان
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