Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 40, Issue 36, Pages 12478-12488Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2015.07.063
Keywords
CO-PROX; CuO-Ce0.8Zr0.2O2; Synthesis method
Categories
Funding
- National Natural Science Foundation of China [21267011, 21367015, U1402233]
- Young Academic and Technical Leader Raising Foundation of Yunnan Province [2008py010]
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CuO(10)-Ce0.8Zr0.2O2-UGC-300 (CuO-Ce0.8Zr0.2O2 prepared by urea grind combustion method, with 10 wt.% CuO loading and calcined at 300 degrees C) and CuO(10)-Ce0.8Zr0.2O2-IWI-300 (prepared by incipient wetness impregnation method) catalysts were tested for CO-PROX. It was noticed that both the CO conversion and the O-2 selectivity of CuO(10)-Ce0.8Zr0.2O2-UGC-300 are higher than those of CuO(10)-Ce0.8Zr0.2O2-IWI-300. The high performance catalytic activities of CuO(10)-Ce0.8Zr0.2O2-UGC-300 have been attributed to the synergistic effects of highly dispersed Cu species together with the stronger interaction between CuO and the support. The effect of the CuO content and calcination temperature on the catalytic activity of the CuO-Ce0.8Zr0.2O2 catalysts were investigated in detail. The catalyst with 10 wt.% CuO loading and calcined at 300 degrees C exhibited the highest catalytic activity. CuO(10)-Ce0.8Zr0.2O2-UGC-300 catalyst exhibited excellent adaptability of space velocity from 12,000 h(-1) to 36,000 h(-1) and with good tolerance towards CO2 and H2O. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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