کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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59189 | 1419426 | 2015 | 8 صفحه PDF | دانلود رایگان |
A series of mesoporous Fe-Cu mixed metal oxide nanopowders with different Cu/Fe molar ratios and high specific surface areas were synthesized via a simple, inexpensive, surfactant-free sol-gel route using propylene oxide as the gelation agent. The catalytic behavior of the nanopowders in low-temperature CO oxidation was investigated using a microreactor-gas chromatography system. The prepared materials were characterized by X-ray diffraction, N2 adsorption-desorption, thermogravimetric-differential thermal analysis, temperature-programmed reduction, Fourier transform infrared spectroscopy, and transmission electron microscopy. These mesoporous Fe-Cu mixed metal oxide catalysts had nanocrystalline structures, narrow pore size distributions, and high surface areas; they showed high catalytic activities and stabilities in low-temperature CO oxidation. The addition of CuO to iron oxide affected the structure and catalytic performance of the iron oxide. The catalyst containing 15 mol% CuO had the highest specific surface area and catalytic activity, and showed high catalytic stability in low-temperature CO oxidation.
Graphical AbstractMesoporous Fe-Cu mixed metal oxide nanopowders with different Cu/Fe molar ratios and high specific surface areas were synthesized via a sol-gel route. The nanopowders exhibited good catalytic behavior in low-temperature CO oxidation.Figure optionsDownload as PowerPoint slide
Journal: Chinese Journal of Catalysis - Volume 36, Issue 10, October 2015, Pages 1711–1718