“…The mechanism and kinetics of reduction of different ferrites such as ferrites of cobalt, zinc, strontium, barium and magnesium were investigated [16][17][18][19][20][21]. Ni x Co 1−x Fe 2 O 4 has been synthesized by various methods such as solid-state reaction, co-precipitation, high-temperature self-propagating, microemulsion, solvothermal, hydrothermal, mechanosynthesis, sol-gel, dip-coating wet-chemical process and aerosol route [22][23][24][25][26][27][28]. Reduction of Ni x Co 1−x Fe 2 O 4 was handled very limited through some investigations [29,30].…”