Abstract
Uniform three-dimension hierarchical flower-like Ni1.5Co1.5O4 nanostructures were synthesized on a large scale by a simple, low-temperature hydrothermal method without any template, catalyst and surfactant, followed by a calcinating process. The obtained Ni1.5Co1.5O4 products were composed of two-dimension ultrathin nanosheets with random attachment. Nitrogen sorption isotherm shows that this structure possesses a high specific surface area of 118.8m2g−1 with an average pore diameter of 16.67nm. When tested as an anode material, the as-prepared Ni1.5Co1.5O4 nanostructures exhibit an initial discharge capacity of 1461.5mAhg−1. After 30 cycles at the current density of 100mAg−1, the discharge capacity still keeps 980.8mAhg−1. The obtained three-dimension hierarchical flower-like Ni1.5Co1.5O4 nanostructures show a promising anode material for lithium ion batteries.
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