Artículos de revistas
Cobalt Supported on Zirconia. Selective Catalytic Reduction of NO Using Propane as Reducing Agent.
Fecha
2014-11Registro en:
Lick, Ileana Daniela; Gazzoli, Delia; Botto, Irma Lia; Soria, Delia Beatriz; Villa, Aida Luz; et al.; Cobalt Supported on Zirconia. Selective Catalytic Reduction of NO Using Propane as Reducing Agent.; Betham Science; Current catalysis; 3; 2; 11-2014; 179-186
2211-5447
2211-5455
Autor
Lick, Ileana Daniela
Gazzoli, Delia
Botto, Irma Lia
Soria, Delia Beatriz
Villa, Aida Luz
Gonzalez, Maria Gloria
Ponzi, Esther Natalia
Ocsachoque, Marco Antonio
Resumen
The catalytic behavior of a series of cobalt catalysts supported on zirconia in the selective catalytic reduction(SCR) of NO has been studied using propane as reducing agent. The catalysts were characterized by Raman Spectroscopy, Temperature Programmed Reduction (TPR), Diffuse Reflectance Spectroscopy UV-Vis (DRS) and X-ray Photoelectron Spectroscopy (XPS) to assess the physicochemical properties of cobalt species. Results for SCR of NO indicate that the activity is substantially related to the cobalt concentration and consequent nature of supported cobalt species. The formation of segregated oxidic phases on the catalytic surface produces an activity decrease. The most active catalyst contains Co(II) ions, interacting with the support, in tetrahedral coordination.