Effect of 3d-element oxides on the anatase - rutile phase transformation

The effect of 3-d-element oxides on the phase transformations of anatase into rutile has been studied. It has been shown that the oxide addition has a rutiling effect, regardless of the synthesis method of titanium dioxide in its anatase modification. Nickel and chromium oxides are rutiling additives and reduce the temperature of the anatase phase transition into rutile, with nickel oxide acting more efficiently than chromium oxide. The temperature of the polymorphic transformation depends on the prehistory of both nickel (II) oxide and titanium (IV) oxide.