期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 5, 期 45, 页码 23543-23549出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ta07767j
关键词
-
资金
- National Natural Science Foundation of China [21301007]
In this work, we, for the first time, have designed and fabricated V2O5/Ni3S2 nanoflakes on a nickel foam substrate by a simple one-step hydrothermal method. The as-prepared V2O5/Ni3S2 nanoflake active electrode exhibited high-performance lithium-ion storage and superior supercapacitor properties. As an anode material for lithium-ion batteries, the V2O5/Ni3S2 nanoflakes exhibited a discharge capacity of 435 mA h g(-1) in the 600th cycle, demonstrating their excellent cycling and rate performances. As an electrode material for electrochemical supercapacitors, it presented an areal capacitance of 4.2 F cm(-2) at a current density of 5 mA cm(-2). Theoretical analysis reveals that the diffusion-controlled storage process is dominant in the total capacitance, attributed to the p-n V2O5/Ni3S2 heterojunctions. The results illustrate that the V2O5/Ni3S2 anoflakes have a wide range of potential applications in the energy storage field.
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