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Abstract:
Cu/CeO2-ZrO2 catalysts for water-gas shift (WGS) reaction were prepared with co-precipitation method, and the influence of ZrO2 content on the catalytic structure and properties was investigated by the techniques of N-2 physical adsorption analysis, XRD and H-2-TPR. The results indicate that the BET surface areas of the catalysts are increased in varying degrees due to the presence of ZrO2. With increasing ZrO2 content, the pore size distribution is centered on 1.9 nm. ZrO2 can efficiently restrain the growth of Cu crystal particles. The appropriate amount of ZrO2 in the Cu/CeO2 catalysts can help the catalyst keep better copper dispersion in the WGS reaction, which can lead to both higher catalytic activity and better thermal stability. When ZrO2 content is 10% (atom fraction), Cu/CeO2-ZrO2 catalyst reaches a CO conversion rate of 73.7% at the reaction temperature of 200 degrees C.
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JOURNAL OF RARE EARTHS
ISSN: 1002-0721
CN: 11-2788/TF
Year: 2005
Issue: 6
Volume: 23
Page: 685-689
0 . 2 4 9
JCR@2005
5 . 2 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
JCR Journal Grade:4
Cited Count:
WoS CC Cited Count: 2
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
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