Comparison of structure behavior and catalytic activity of NiAl and CoAl spinets in selective catalytic reduction of NO with C3H8

Abstract

A comparison of structure behavior of NiAl and CoAl spinels prepared via sol- gel process is investigated. Characterization of the prepared spinels has been determined by using a variety of techniques such as XRD, UV-VIS, TPR-H2 and nitrogen adsorption-desorption isotherms. The results shown that these spinels possessed different structure and as a result their catalytic performance was relatively diverse in C3H8-SCR-NO in the presence of excess oxygen