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Abstract Image By a novel in situ chemical vapor deposition, activated N-doped hollow carbon-nanotube/carbon-nanofiber composites are prepared having a superhigh specific Brunauer¨CEmmett¨CTeller (BET) surface area of 1840 m2 g¨C1 and a total pore volume of 1.21 m3 g¨C1. As an anode, this material has a reversible capacity of 1150 mAh g¨C1 at 0.1 A g¨C1 (0.27 C) after 70 cycles. At 8 A g¨C1 (21.5 C), a capacity of 320 mAh g¨C1 fades less than 20% after 3500 cycles, which makes it a superior anode material for a Li-ion batter |
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2013-10-24 17:52:49, 1.54 M
2013-10-24 17:52:55, 534.9 K
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