Abstract
Novel flower-like MnCo2O4 hollow microspheres have been synthesized through a facile template-free solvothermal method combined with calcination. The as-synthesized flower-like MnCo2O4 hollow microspheres have a diameter of 3.0μm, and constructed by numerous loosely arraying nanoflakes with a thickness of 20nm. Based on their unique flower-like and hollow structures, these flower-like MnCo2O4 hollow microspheres display a good capacitive behavior with a specific capacitance of 235.7Fg−1 at a current density of 1.0Ag−1 and a good specific capacitance retention of 93.6% after 2000 continuous charge–discharge cycles. The excellent capacitive properties and stability suggest that these flower-like MnCo2O4 hollow microspheres could be promising electroactive materials for supercapacitors.
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