Journal
MATERIALS LETTERS
Volume 180, Issue -, Pages 207-211Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/J.MATLET.2016.05.171
Keywords
Nanoporous Co(3)o(4) plates; Supercapacitor; Lithium ion battery; Porous materials
Funding
- Fundamental Research Funds for the Central Universities
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Nanoporous Co3O4 plates are synthesized by a facile approach combining hydrothermal treatment and subsequent calcination. Nanoporous Co3O4 plates with a large surface area (161.9 m(2) g(-1)), small crystalline size (similar to 3.0 nm) and thin thickness (similar to 10 nm) show potentials for electrochemical energy storage. Nanoporous Co3O4 plates as electroactive materials for supercapacitor displayed a good rate capability and specific capacitance of 356.6 F g(-1) at 0.4 A/g without any obvious degradation over 2500 cycles. They also delivered a high specific capacity of 944.4 mA h g(-1) at 100 mA g(-1) and a good rate capability as the anodes for lithium-ion batteries. 0 2016 Elsevier B.V. All rights reserved.
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