Table 1: Portions for the formation of CoxFe3-xO4.

Nomenclature

Compound

%Cobalt nominal

Fe (III) mmol nominal

Fe (II) mmol nominal

Co (II) mmol nominal

M1

Fe3O4

0

8

4

0

M2

Co0.5Fe2.5O4

50

8

2

2

M3

CoFe2O4

100

8

0

4