کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1331547 | 979007 | 2009 | 5 صفحه PDF | دانلود رایگان |

A new method has been developed for the preparation of sulfated titania (S-TiO2) supported on mesoporous silica. The use of direct exchange of metal containing precursors for the surfactants in the as-synthesized MCM-41 substrate produced a product with high sulfur content without serious blockage of the pore structure of MCM-41. The pore sizes and volumes of the resultant S-TiO2/MCM-41 composites were found to vary markedly with the loading of TiO2. The strong acidic character of the composites obtained was examined by using them as catalysts for the esterification of acetic acid and n-butanol.
XRD profiles of the composites of S-TiO2/MCM-41 with different TiO2 contents. The low angle peaks indicate the MCM-41-like structure retained and a TiO2 phase appeared at high angle region.Figure optionsDownload as PowerPoint slide
Journal: Journal of Solid State Chemistry - Volume 182, Issue 9, September 2009, Pages 2530–2534