Journal of the Chilean Chemical Society
On-line version ISSN 0717-9707
BECERRA, Alberto M. and CASTRO-LUNA, Adolfo E.. AN INVESTIGATION ON THE PRESENCE OF NiAl2O4 IN A STABLE Ni ON ALUMINA CATALYST FOR DRY REFORMING. J. Chil. Chem. Soc. [online]. 2005, vol.50, n.2, pp. 465-469. ISSN 0717-9707. doi: 10.4067/S0717-97072005000200005.
Comprehensive temperature-programmed reduction, X-ray diffraction and diffuse reflectance spectroscopy studies were conducted on a stable nickel (10.5%) catalyst obtained through conventional impregnation of a sol-gel made support of g-Al2O3, to elucidate the interactions between nickel oxide and support. The results pointed to the presence of a NiAl2O4 spinel layer on the surface produced by the strong interaction between NiO and the support. These interactions might be responsible for its high activity, stability and resistance to coking
Keywords : Methane dry reforming; synthesis gas; Ni catalysts; metal-support interaction; NiAl2O4.