Spinel-type oxides LiMn2-xMxO4 [M = Co, Fe, (CoFe)] as electrocatalyst for oxygen evolution/reduction in alkaline solution

The electrocatalytic performance of three series of spinel-type complex oxides LiMn1.6Co0.4O4 were evaluated in gas-diffusion oxygen electrodes. The oxide particles were synthesized by an improved amorphous citric precursor (IACP) method. The method weakened the agglomerates of the particles and increased the specific surface area. The oxides showed high electrochemical activity for oxygen evolution and reduction.ElectrochemistrySCI(E)EI8ARTICLE111351-13542