Please use this identifier to cite or link to this item: http://repository.vnu.edu.vn/handle/VNU_123/31542
Title: The role of carriers in properties and performance of Pt-CuO nanocatalysts in low temperature oxidation of CO and p-xylene
Authors: Luu, Cam Loc
Nguyen, Tri
Hoang, Tien Cuong
Keywords: low temperature deep oxidation;carriers;Pt-CuO;p-xylene;CO
Issue Date: 2015
Publisher: IOP PUBLISHING LTD, TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
Citation: ISIKNOWLEDGE
Abstract: In this study four optimal catalysts on the basis of Pt-CuO supported on gamma-Al2O3, TiO2, CeO2 and gamma-Al2O3 + CeO2 have been prepared and studied. Characterizations of the catalysts have been carried out by methods of N-2 adsorption, x-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) and temperature-programmed-reduction (TPR). The activity of these catalysts for deep oxidation of CO, p-xylene and their mixture was assessed at temperature range 75-300 degrees C. The results showed that the presence of CO in a mixture with p-xylene has a beneficial effect on the rate of p-xylene conversion; meanwhile the presence of p-xylene shows the inhibition on CO oxidation. In the reactions of the mixture, oxidation of CO and p-xylene occurred simultaneously on PtCuO catalyst supported on gamma-Al2O3, TiO2, CeO2 carriers, but on catalyst PtCu/CeAl the oxidation of p-xylene can proceed only when CO is consumed entirely.
Description: ADVANCES IN NATURAL SCIENCES-NANOSCIENCE AND NANOTECHNOLOGY Volume: 6 Issue: 1 Article ; TNS05739
URI: http://iopscience.iop.org/article/10.1088/2043-6262/6/1/015011
http://repository.vnu.edu.vn/handle/VNU_123/31542
ISSN: 2043-6254
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