کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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612845 | 880708 | 2007 | 9 صفحه PDF | دانلود رایگان |
Iron and 4-(methylamino)benzoic acid have been successfully incorporated into silica extracted from rice husk. The silica/Fe/amine complex, RH–Fe(5% amine), showed a ca. 24% increase in specific surface area compared to RH–Fe. This increase was attributed to the templated formation of regular pores. The XRD showed the RH–Fe(5% amine) to be amorphous. The Friedel–Crafts benzylation reaction with toluene using RH–Fe(5% amine) showed a drastic reduction in the di-substituted products to ca. 1.0%.
The amine modified silica–iron catalyst, RH–Fe(5% amine) resulted in a significant reduction of the di-substituted product in the benzylation of toluene with benzyl chloride. This is a significant improvement over the previously reported catalyst RHA–Fe.Figure optionsDownload as PowerPoint slide
Journal: Journal of Colloid and Interface Science - Volume 311, Issue 1, 1 July 2007, Pages 135–143