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A series of Au/alpha Fe2O3 catalysts promoted with ZrO2 and Nb2O5 were prepared by parallel co-precipitation method. Detailed characterizations were conducted by techniques including UV-Vis-DRS, XPS, TEM and XRF. Results indicated that the enrichment of Au, ZrO2 and Nb2O5 on the surface induced by the strong interaction between ZrO2 and Nb2O5 kept the nanoparticles apart, delaying sintering. Performance tests carried out in the reformed methanol steam showed that its CO conversion almost reached the maximum value of 99% at 200 degrees C, and maintained a better stability compared with unmodified samples within 50 h on-stream. All these indicated that ZrO2 and Nb2O5 promoters efficiently improved the performance of the Au/alpha-Fe2O3 catalysts.
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SPECTROSCOPY AND SPECTRAL ANALYSIS
ISSN： 1000-0593
CN： 11-2200/O4
Year： 2007
Issue： 4
Volume： 27
Page： 781-784
0 . 8 4 3
JCR@2007
0 . 7 0 0
JCR@2023
ESI Discipline： CHEMISTRY;
JCR Journal Grade：3
Cited Count：
WoS CC Cited Count： 1
SCOPUS Cited Count：
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 3
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