Hydrothermal synthesis of β-nickel hydroxide microspheres with flakelike nanostructures and their electrochemical properties

摘要

β-Nickel hydroxide microspheres with flakelike nanostructure have been successfully synthesized by a low temperature hydrothermal method at 100 ℃ for 2 h. The sphere size was about 0.6-1.0 μm. The hierarchical structure was nanoflake and thickness of each nanoflake was about 15 nm. The formation mechanism of p-nickel hydroxide microsphere with flakelike nanostructures was discussed. Their electrochemical properties were also described. The discharge specific capacity is 260 mAh g~(-1). Because of their unique structures and excellent electrochemistrical properties, the flakelike nanostructures of nickel hydroxide spheres may give a new perspective for applications in the rechargeable batteries.