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http://reini.utcv.edu.mx:80/handle/123456789/935
Title: | Enhancement of catalytic wet air oxidation of tert-amyl methyl ether by the addition of Sn and CeO2 to Rh/Al2O3 catalysts |
Keywords: | Nanotecnología |
Issue Date: | 2011 |
Publisher: | Elsevier |
Abstract: | "The Rh and Rh–Sn supported catalyst on -Al2O3 and -Al2O3–CeO2 (loading 1, 5 and 20 Ce wt%) were characterized by means of electron microscopy (TEM), temperature programmed reduction (TPR), Fourier transformed infrared of CO adsorption (FTIR-CO) and X-ray photoelectron spectroscopy (XPS). The catalysts were tested in the catalytic wet air oxidation of an aqueous solution of 227 ppm of TAME and 1 g/L of catalyst (120 ◦C and 10 bar of oxygen partial pressure). The rhodium monometallic catalysts showed an increase in the activity with the load of cerium oxide in the catalyst. The coexistence of Rh◦/Rh+ and Ce4+/Ce3+ redox couples facilitates the activation of TAME and hence the catalytic activity and selectivity to mineralization. The addition of Sn+ enhances the activity and selectivity; this is explained by assuming that Sn+ acts as Lewis acid sites trapping the TAME molecules for further oxidation on rhodium metal particles." |
metadata.dc.identifier.*: | http://reini.utcv.edu.mx:80/handle/123456789/935 |
metadata.dc.language: | spa |
Appears in Collections: | Artículos arbitrados |
Files in This Item:
File | Description | Size | Format | |
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Artículo_Enhancement of catalytic wet air oxidation of tert-amyl methyl ether by the addition of sn.pdf | 1.17 MB | Adobe PDF | View/Open |
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