Title: Cu/Ni loaded CeO2-ZrO2 catalyst for a water gas shift reaction: effects of loaded metals and CeO2 addition
Language: English
Authors: Chamnankid, Busaya 
Föttinger, Karin  
Rupprechter, Günther 
Kongkachuichay, Paisan 
Category: Original Research Article
Keywords: Ceria; Copper; DRIFTS; Nickel; Water gas shift; Zirconia
Issue Date: 2014
Journal: Chemical Engineering and Technology 
Abstract: 
Two different types of metals (Cu and Ni) and the effect of CeO2 addition to produce a CeO2‐ZrO2 co‐supporter were investigated through the water‐gas shift (WGS) reaction. It was found that the WGS activity could be enhanced with CeO2 addition. At relatively high temperature, Ni‐loaded catalysts exhibited higher CO conversion while Cu‐loaded catalysts demonstrated better performance at low temperatures. The stability and yield of the CO2 and H2 products of the Cu catalysts were higher than those of the Ni catalysts. These results may be caused by an irreversible adsorption of CO on Ni and the reverse WGS reaction occurring on the Ni catalysts. In situ diffuse‐reflection infrared Fourier transform spectroscopy data suggests that the WGS mechanism likely proceeded via formate species.
DOI: 10.1002/ceat.201300869
Library ID: AC15199996
URN: urn:nbn:at:at-ubtuw:3-4437
ISSN: 0930-7516
Organisation: E165 - Institut für Materialchemie 
Publication Type: Article
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