“The preparation and properties of Ni-La-Zr catalysts for the steam reforming of ethanol

J. BUSSI; N. BESPALKO; S. VEIGA; A. AMAYA; R. FACCIO; M. C. ABELLO

CATALYSIS COMMUNICATIONS

Elsevier

Año: 2008 vol. 10 p. 33 - 38

1566-7367

Ni-La-Zr catalysts were prepared by coprecipitation and impregnation techniques. A compound with the stoichiometry La2Zr2O2 is formed at calcination temperatures higher than 780°C and coexists with a highly stable nickel oxide phase. Catalysts prepared by coprecipitation of the three metals and further calcination at 700°C and 850°C lead to the highest H2 yield and stability in the steam reforming of ethanol. The better behavior of the coprecipitated catalysts is ascribed mainly to the higher nickel dispersion and a more intimate contact between the three metals at the surface which prevents deactivation by carbon formation.