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联系人：美国麦克仪器
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每周分享11.20
点击次数：699 发布时间：2015/11/20 10:32:42
In this paper, the ordered mesoporous carbon nanofiber arrays (MCNAs), Nickel–Boron (Ni–B) amorphous alloys, ａnd amorphous Ni–B/MCNAs composite for supercapacitor material have been successfully fabricated by a combination of templating method ａnd chemical reduction process. The porous structure ａnd large specific surface area (1270 m2 g−1) of MCNAs favor the utilization of the active material Ni–B amorphous alloys ａnd interfacial charge transport, ａnd provide short diffusion paths for ions. X-ray diffraction, small-angle X-ray scattering, inductively coupled plasma. Transmission electron micrographs ａnd selected area electronic diffraction were taken to characterize the structure of the ordered MCNAs, Ni–B amorphous alloy, ａnd amorphous Ni–B/MCNAs. Electrochemical properties are characterized by cyclic voltammetry, galvanostatic charge/discharge measurements, ａnd electrochemical impedance spectroscopy. The results show that the amorphous Ni–B/MCNAs display superior capacitive performance (733 F g−1) over Ni–B amorphous alloys (562 F g−1) at a scan rate of 5 mV s−1 and a good cycling stability after 1000 cycles.
该文章中材料表征采用的是美国麦克仪器ASAP 2460
转自中国粉体网
