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[求助]
畢業(yè)論文翻譯，急，求助，萬分感謝，題目與摘要
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題目：Superhigh capacity and rate capability of high-level nitrogen-doped graphene sheets as anode materials for lithium-ion batteries 摘要：A new facile approach is proposed to synthesize nitrogen-doped graphene sheets with the nitrogen-doping level as high as 7.04 at.% by thermal annealing pristine graphene sheets and low-cost industrial material melamine. The high-level nitrogen-doped graphene sheets exhibit a superhigh initial reversible capacity of 1123 mAh/g at a current density of 50 mA/g. More significantly, even at an extremely high current density of 20 A/g highly stable capacity of about 241 mAh/g could still be obtained. Such an electrochemical performance is superior to those previously reported nitrogen-doped graphene sheets.The excellent electrochemical performance can be attributed to the two-dimensional structure, disor-dered surface morphology, high nitrogen-doping level, and the existence of pyridinic nitrogen atoms. The results indicate that the high-level nitrogen-doped graphene sheets could be a promising anode material for high-performance lithium-ion batteries. |
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銅蟲 (小有名氣)
- 翻譯EPI: 1
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- 帖子: 257
- 在線: 92.5小時
- 蟲號: 2139161
- 注冊: 2012-11-21
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【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
羅雷: 金幣+15, 翻譯EPI+1, ★★★★★最佳答案, 謝謝 2013-05-19 08:01:13
羅雷: 金幣+15, 翻譯EPI+1, ★★★★★最佳答案, 謝謝 2013-05-19 08:01:13
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2樓2013-05-16 17:49:13
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