S、N 共掺杂碳纳米管负载超薄二硫化钼纳米片具有优异的电化学性能。

S,N co-doped carbon nanotubes decorated with ultrathin molybdenum disulfide nanosheets with highly electrochemical performance.

机构信息

State Key Laboratory of Rare Earth Resource, Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin, China.

出版信息

Nanoscale. 2017 May 18;9(19):6346-6352. doi: 10.1039/c7nr01665d.

DOI:10.1039/c7nr01665d

PMID:28451668

Abstract

A facile route for the synthesis of a type of composite nanotube, namely S,N co-doped carbon nanotubes decorated with molybdenum disulfide nanosheets (CP/MoS), is now reported. The number of nanosheets for MoS can be easily tuned by changing the templates with different ratios of N and S. When evaluated as an anode material for lithium-ion batteries, the CP/MoS nanotubes show a high specific capacity of around 1500 mA h g at the current density of 50 mA g, excellent cycling stability up to 750 cycles at the current density of 1 A g, and superior rate performance.

摘要

现报道了一种合成复合纳米管的简便方法，即 S，N 共掺杂碳纳米管上修饰二硫化钼纳米片（CP/MoS）。通过改变具有不同 N 和 S 比例的模板，可以轻松调节 MoS 的纳米片数量。当作为锂离子电池的阳极材料进行评估时，CP/MoS 纳米管在 50 mA g 的电流密度下具有约 1500 mA h g 的高比容量，在 1 A g 的电流密度下高达 750 次循环的优异循环稳定性，以及出色的倍率性能。