School of Chemistry & Materials Science, Ludong University, Yantai 264025, PR China.
School of Chemistry & Materials Science, Ludong University, Yantai 264025, PR China.
J Colloid Interface Sci. 2017 Dec 15;508:435-442. doi: 10.1016/j.jcis.2017.08.034. Epub 2017 Aug 12.
Amorphous MoSe and Se anchored on amorphous carbon coated multiwalled carbon nanotubes (CNTs@C@MoSe@Se) have been synthesized by a facile solvothermal strategy. The one dimensional CNTs@C@MoSe@Se can effectively buffer the volume variation, prohibit the aggregation and facilitate electron and ion transport throughout the electrode. Furthermore, the combination of MoSe and Se also provides buffer spaces for the volumetric change during cycling. Thus, the obtained CNTs@C@MoSe@Se hybrids display the enhanced cycle stability and excellent high rate capacity. The reversible capacity of 1010mAhg can be achieved after 100 cycles at the current density of 0.1Ag. Even after 500 cycles, a reversible capacity of 508mAhg is still retained at 5Ag.
通过简便的溶剂热策略合成了无定形 MoSe 和 Se 锚定在无定形碳涂覆的多壁碳纳米管（CNTs@C@MoSe@Se）上。一维 CNTs@C@MoSe@Se 可以有效地缓冲体积变化，防止聚集，并促进整个电极中的电子和离子传输。此外，MoSe 和 Se 的结合也为循环过程中的体积变化提供了缓冲空间。因此，所获得的 CNTs@C@MoSe@Se 杂化物表现出增强的循环稳定性和优异的高倍率容量。在电流密度为 0.1Ag 时，经过 100 次循环后，可实现 1010mAhg 的可逆容量。即使经过 500 次循环，在 5Ag 时仍保持 508mAhg 的可逆容量。
