Boron and nitrogen co-doped porous carbon nanotubes webs as a high-performance anode material for lithium ion batteries
Boron and nitrogen co-doped porous carbon nanotubes webs as a high-performance anode material for lithium ion batteries
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硼氮共掺杂多孔碳纳米管网作为高性能锂离子电池负极材料
DOI：
10.1016/j.ijhydene.2016.06.016
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发表时间：
2016
影响因子：
7.2
通讯作者：
Yu Xuebin
中科院分区：
文献类型：
--
作者：
Zhang Lijun;Xia Guanglin;Guo Zaiping;Li Xingguo;Sun Dalin;Yu Xuebin
本文报道了高硼含量（15.05at.%）多孔碳纳米管网的制备和氮（6.71原子%）以聚吡咯（PPy）纳米管为前驱体，共掺杂（BN-PCNTs）。采用多功能、无毒的硼氢化物氨（NH3 BH 3，记作AB）作为有效的杂原子源，在温和条件下诱导B和N共掺杂。由于BN-PCNTs的多孔纳米管结构和高水平的B、N共掺杂，BN-PCNTs作为锂离子电池负极材料，表现出高可逆容量（200 mA g-1电流密度下> 900 mAh g-1）和良好的循环和倍率性能。
This paper reports the fabrication of porous carbon nanotubes webs with high level of boron (15.05 at.%) and nitrogen (6.71 at.%) co-doping (denote as BN-PCNTs) by using polypyrrole (PPy) nanotubes as the precursor. Instead of using virulent boron hydride, ammonia borane (NH3BH3, denote as AB), a versatile and non-toxic agent, was employed as an effective heteroatoms sources to induce B and N co-doping in mild conditions. Benefiting from the porous nanotube structure and high-level B, N co-doping, the BN-PCNTs exhibit high reversible capacity (∼900 mAh g−1at a current density of 200 mA g−1) with good cycling and rate performances as anode materials in lithium ion batteries.