Multiphase Nano-Nickel Hydroxide

Multiphase nano-Ni(OH)2-doped with Y or La was prepared by a supersonic co-precipitation method (111). The crystal morphology, structure and particle size were characterized by TEM, XRD and particle size distribution. 

Complex electrodes were prepared by mixing 8% nickel hydroxides with commercial microsize spherical nickel. The discharge capacity of electrodes increased initially and then decreased with the increase of the supersonic power. When the supersonic power was 60 W and the pH value was 9, the sample had the largest discharge capacity of 358 mAh g at 0.5C rate, which was 122.7 and 76 mAh g higher than the spherical nickel electrode and the La-doped sample electrode, respectively (111). 

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