Journal
CATALYSTS
Volume 7, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/catal7120382
Keywords
CO oxidation; MIL-100 (Fe); Ag-Fe2O3; preparation method
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Funding
- National Natural Science Foundation of China [21507086, 51508327, 41673093]
- Shanghai Sailing Program [14YF1409900, 16YF1408100]
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In this work, Ag-Fe2O3 catalysts were successfully prepared using several different methods. Our main intention was to investigate the effect of the preparation methods on the catalysts' structure and their catalytic performance for CO oxidation. The catalysts were characterized by X-ray diffraction (XRD), N-2 adsorption-desorption, transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), H-2-temperature program reduction (H-2-TPR) and inductively coupled plasma optical emission spectroscopy (ICP-OES). Ag-Fe catalysts prepared by impregnating Ag into MIL-100 (Fe) presented the best catalytic activity, over which CO could be completely oxidized at 160 degrees C. Based on the characterization, it was found that more metallic Ag species and porosity existed on Ag-Fe catalysts, which could efficiently absorb atmospheric oxygen and, thus, enhance the CO oxidation.
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