Journal
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
Volume 27, Issue 2, Pages 197-202Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.pnsc.2017.03.001
Keywords
alpha-Co(OH)(2) microspheres; Co3O4 porous microspheres; Supercapacitor; Cycling stability; Rate capability
Funding
- National Natural Science Foundation of China [11674023, 51371015, 51331002, 51501004, 51571006]
- Fundamental Research Funds for the Central Universities [FRF-BR-15-009B]
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Both alpha-Co(OH)(2) and Co3O4 porous microspheres have been synthesized by the simple solvothermal process as well as subsequent treatment. The morphologies and structures of the as-synthesized products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). Both samples have spherical structures consisting of nanosheets, with similar crystallinity. The electrochemical properties of both samples were further investigated. Both samples show excellent electrochemical performances including high specific capacity, good cycling stability and rate capability. All results show that these microspheres exhibit potential applications in energy storage field.
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