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麦克默瑞提克（上海）仪器有限公司 2015-11-20 点击757次
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
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