KOH Activated Nitrogen Doped Hard Carbon Nanotubes as High Performance Anode for Lithium Ion Batteries | |
Zhang, Qingtang; Li, Meng; Meng, Yan; Li, An | |
刊名 | ELECTRONIC MATERIALS LETTERS |
2018-11 | |
卷号 | 14期号:6页码:755-765 |
关键词 | Hard carbon nanotubes Conjugated microporous polymers Anode Lithium ion battery |
ISSN号 | 1738-8090 |
DOI | 10.1007/s13391-018-0085-3 |
英文摘要 | In situ nitrogen doped hard carbon nanotubes (NHCNT) were fabricated by pyrolyzing tubular nitrogen doped conjugated microporous polymer. KOH activated NHCNT (K-NHCNT) were also prepared to improve their porous structure. XRD, SEM, TEM, EDS, XPS, Raman spectra, N-2 adsorption-desorption, galvanostatic charging-discharge, cyclic voltammetry and EIS were used to characterize the structure and performance of NHCNT and K-NHCNT. XRD and Raman spectra reveal K-NHCNT own a more disorder carbon. SEM indicate that the diameters of K-NHCNT are smaller than that of NHCNT. TEM and EDS further indicate that K-NHCNT are hollow carbon nanotubes with nitrogen uniformly distributed. N-2 adsorption-desorption analysis reveals that K-NHCNT have an ultra high specific surface area of 1787.37m(2)g(-1), which is much larger than that of NHCNT (531.98m(2)g(-1)). K-NHCNT delivers a high reversible capacity of 918mAhg(-1) at 0.6Ag(-1). Even after 350 times cycling, the capacity of K-NHCNT cycled after 350 cycles at 0.6Ag(-1) is still as high as 591.6mAhg(-1). Such outstanding electrochemical performance of the K-NHCNT are clearly attributed by its superior characters, which have great advantages over those commercial available carbon nanotubes (200-450mAhg(-1)) not only for its desired electrochemical performance but also for its easily and scaling-up preparation. |
资助项目 | National Nature Science Foundation of China[21466020] |
WOS研究方向 | Materials Science |
语种 | 英语 |
出版者 | KOREAN INST METALS MATERIALS |
WOS记录号 | WOS:000443991500012 |
状态 | 已发表 |
内容类型 | 期刊论文 |
源URL | [http://119.78.100.223/handle/2XXMBERH/32347] |
专题 | 石油化工学院 |
通讯作者 | Zhang, Qingtang |
作者单位 | Lanzhou Univ Technol, Sch Petrochem Engn, 36 Pengjiaping, Lanzhou 730050, Gansu, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Qingtang,Li, Meng,Meng, Yan,et al. KOH Activated Nitrogen Doped Hard Carbon Nanotubes as High Performance Anode for Lithium Ion Batteries[J]. ELECTRONIC MATERIALS LETTERS,2018,14(6):755-765. |
APA | Zhang, Qingtang,Li, Meng,Meng, Yan,&Li, An.(2018).KOH Activated Nitrogen Doped Hard Carbon Nanotubes as High Performance Anode for Lithium Ion Batteries.ELECTRONIC MATERIALS LETTERS,14(6),755-765. |
MLA | Zhang, Qingtang,et al."KOH Activated Nitrogen Doped Hard Carbon Nanotubes as High Performance Anode for Lithium Ion Batteries".ELECTRONIC MATERIALS LETTERS 14.6(2018):755-765. |
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