Formation of Septuple-Shelled (Co<sub>2/3</sub> Mn<sub>1/3</sub> )(Co<sub>5/6</sub> Mn<sub>1/6</sub> )<sub>2</sub> O<sub>4</sub> Hollow Spheres as Electrode Material for Alkaline Rechargeable Battery.
basic_science · Level V
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- Record sourced from PubMed, PMID 28682005.
- Also identified by DOI 10.1002/adma.201700550.
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Abstract
The multishelled (Co<sub>2/3</sub> Mn<sub>1/3</sub> )(Co<sub>5/6</sub> Mn<sub>1/6</sub> )2O<sub>4</sub> hollow microspheres with controllable shell numbers up to septuple shells are synthesized using developed sequential templating method. Exhilaratingly, the septuple-shelled complex metal oxide hollow microsphere is synthesized for the first time by doping Mn into Co<sub>3</sub> O<sub>4</sub> , leading to the change of crystalline rate of precursor. Used as electrode materials for alkaline rechargeable battery, it shows a remarkable reversible capacity (236.39 mAh g<sup>-1</sup> at a current density of 1 A g<sup>-1</sup> by three-electrode system and 106.85 mAh g<sup>-1</sup> at 0.5 A g<sup>-1</sup> in alkaline battery) and excellent cycling performance due to its unique structure.