Affiliation:
1. Department of Heterogeneous Catalysis Boreskov Institute of Catalysis (SB RAS) Federal Research Center Lavrentiev Ave. 5 Novosibirsk 630090 Russia
2. UMR 7515 CNRS, Energy and Fuels for a Sustainable Environment Group The Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES) University of Strasbourg 25 rue Becquerel 67087 Strasbourg Cedex 2 France
Abstract
AbstractMixed Ce−Zr oxides with a fluorite structure were synthesized by the solvothermal method in a supercritical medium of isopropanol. The prepared mixed oxides Ce0.5Zr0.5O2 and Ce0.75Zr0.25O2 were used as supports for 5 wt%Ni and bimetallic 2.5 wt%Ni+2.5 wt%Co catalysts. The catalysts were fully characterized (specific surface area, morphology, particle size, phase composition, surface atomic composition) and tested in ethanol dry reforming.The dependences of the conversion of C2H5OH and CO2, the yield of CO and H2, and the H2/CO ratio were estimated. The effect of the supported metals interaction and the effect of Ce/Zr ratio in the support on the catalytic activity were shown. The presence of nickel in the composition of the catalyst is necessary for high catalytic activity. It has been shown that the addition of cobalt cannot contribute to increase the catalytic activity and stability, but helps to decrease the deposition of carbon and significantly reduces the rate of carbon formation during ethanol dry reforming comparing to the monometallic nickel material.
Subject
Inorganic Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Catalysis
Cited by
5 articles.
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