with same compositions have been
yielded selecting Ce(NO3)3$6H2O (SingmaeAldrich) as precursor
material for ceria. These catalysts will be denoted as 10%Co/90%
CeO2, 20%Co/80%CeO2, 30%Co/70%CeO2 and 40%Co/60CeO2. On the
other hand, 10, 20, 30 and 40 wt% cobalt have been loaded over
ceria e alumina support with 50:50 (w/w) compositions using the
same co-precipitation technique, with simultaneous addition of all
the nitrate solutions.