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  • fabrication, characterization and application of nitrogen-containing carbon nanospheres obtained by pyrolysis of lignosulfonate/poly(2-ethylaniline)

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
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    • شماره تماس دبیرخانه رویداد: -
     lignosulfonate/poly(2-ethylaniline) (ls–pea) composite nanospheres were prepared via in situ polymerization of 2-ethylaniline (ea) with lignosulfonate (ls) as a dispersant. ls–pea nanospheres with an average diameter of 155 nm were obtained at an optimal ls concentration of 20 wt.%. subsequently, nitrogen-containing carbon nanospheres were fabricated via direct pyrolysis of the ls–pea composite nanospheres at 600–800 °c. the carbon nanospheres prepared by pyrolysis were used as anodes of lithium-ion batteries. the first charge and discharge capacity of carbon nanospheres prepared at 700 °c at current densities of 60 and 100 ma g−1 were 980 and 432 mah g−1, and 764 and 342 mah g−1, respectively. the batteries still owned a high capacity of 353 and 296 mah g−1 after 20 cycles. the results indicated that these nitrogen-containing carbon nanospheres could be used as a promising candidate for electrode materials of lithium-ion batteries.

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