کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
41063 | 45876 | 2011 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: RhCl(TPPTS)3 encapsulated into the hexagonal mesoporous silica as an efficient heterogeneous catalyst for hydroformylation of vinyl esters RhCl(TPPTS)3 encapsulated into the hexagonal mesoporous silica as an efficient heterogeneous catalyst for hydroformylation of vinyl esters](/preview/png/41063.png)
RhCl(TPPTS)3 (TPPTS = m-trisulphonato triphenyl phosphine) was in situ encapsulated into the mesopores of hexagonal mesoporous silica (HMS) by in situ method. The catalyst was characterized by P-XRD, 31P-CPMAS NMR, FT-IR, N2 adsorption, TGA, TEM and ICP techniques. These characterization confirmed the encapsulation and heterogenization of RhCl(TPPTS)3. The synthesized heterogeneous catalyst evaluated for hydroformylation of vinyl esters gave 100% conversion and high selectivity to iso-aldehyde. Vinyl acetate was subjected as a representative vinyl ester for detailed investigations. The performance of the catalyst in terms of conversion and selectivity depended on the studied parameters: amount of the catalyst, substrate, partial pressure of CO and H2, and temperature. Recyclability aspects of the heterogenized catalyst are investigated.
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► RhCl(TPPTS)3 complex was in situ encapsulated into the hexagonal mesoporous silica.
► Active and selective for hydroformylation of vinyl esters.
► Detail investigation on vinyl acetate hydroformylation.
► Catalyst was regenerated and recycled.
Journal: Applied Catalysis A: General - Volumes 409–410, 15 December 2011, Pages 99–105