|
|
[交流]
2014年Nanoscale最新石墨烯鋰電文獻(xiàn) 已有5人參與
題目 Bottom-up synthesis of nitrogen-doped graphene sheets for ultrafast lithium storage
摘要 A facile bottom-up strategy was developed to fabricate nitrogen-doped graphene sheets (NGSs) from glucose using a sacrificial template synthesis method. Three main types of nitrogen dopants (pyridinic, pyrrolic and graphitic nitrogens) were introduced into the graphene lattice, and an inimitable microporous structure of NGS with a high specific surface area of 504 m2 g−1 was obtained. Particularly, with hybrid features of lithium ion batteries and Faradic capacitors at a low rate and features of Faradic capacitors at a high rate, the NGS presents a superior lithium storage performance. During electrochemical cycling, the NGS electrode afforded an enhanced reversible capacity of 832.4 mA h g−1 at 100 mA g−1 and an excellent cycling stability of 750.7 mA h g−1 after 108 discharge–charge cycles. Furthermore, an astonishing rate capability of 333 mA h g−1 at 10000 mA g−1 and a high rate cycle performance of 280.6 mA h g−1 even after 1200 cycles were also achieved, highlighting the significance of nitrogen doping on the maximum utilization of graphene-based materials for advanced lithium storage.
點(diǎn)評(píng) 最新的氮摻雜石墨烯鋰電文獻(xiàn) |
» 本帖附件資源列表
-
歡迎監(jiān)督和反饋:小木蟲僅提供交流平臺(tái),不對(duì)該內(nèi)容負(fù)責(zé)。
本內(nèi)容由用戶自主發(fā)布,如果其內(nèi)容涉及到知識(shí)產(chǎn)權(quán)問題,其責(zé)任在于用戶本人,如對(duì)版權(quán)有異議,請(qǐng)聯(lián)系郵箱:xiaomuchong@tal.com
- 附件 1 : c4nr00454j.pdf
2014-06-18 22:14:15, 1.83 M
» 收錄本帖的淘帖專輯推薦
» 猜你喜歡
» 本主題相關(guān)價(jià)值貼推薦,對(duì)您同樣有幫助:
|