Vg. Povarov et al., APPLICATION OF TRANSPORT REDUCTION TO THE SYNTHESIS OF BULK AND DEPOSITED IRON-OXIDES WITH A SPECIFIED FE2+ FE3+ RATIO/, Russian journal of applied chemistry, 66(9), 1993, pp. 1518-1521
Transport reduction has been applied to control the oxygen content in
iron oxide mixtures; the Fe2+/Fe3+ ratio can be controlled in a bulk m
ixture of iron oxides within +/-4.2% by using this technique. Surface
oxide phases Fe2+/Fe3+ can be varied from 0 to 100% of Fe(II) on TiO2
and Al2O3 and from 0 to 33% of Fe(II) on SiO2.