期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 9, 期 1, 页码 228-237出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0tc04718j
关键词
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资金
- National Natural Science Foundation of China [51672185]
Porous CoSe2 nanosheets prepared via a one-step microwave method exhibit impressive electrochemical properties, with high specific capacitance and excellent stability, making them a promising electrode material.
Porous CoSe2 nanosheets prepared via a one-step microwave method can be considered an excellent electrode material and the associated electrochemical properties were evaluated. The porous CoSe2 nanosheets revealed admirable electrochemical properties in terms of high specific capacitance (333 F g(-1) when the current density is 1 A g(-1)) and excellent enduring stability (100.97% of the initial specific capacity over 25 000 cycles at 5 A g(-1)). An asymmetric supercapacitor (CoSe2-anode, AC-cathode) was assembled, offering good properties accompanied by an energy density of 18.9 W h kg(-1) when the power density reached 387 W kg(-1). These impressive results are obtained largely on account of the porous structure of CoSe2, which provides a path for ion transport, and the introduction of Se into CoSe2, which offers high electrical conductivity, further enhancing the electrochemical performance.
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