MoS2 anchored carbon nitride based mesoporous material as a polysulfide barrier for high capacity lithium-sulfur battery
MoS2 anchored carbon nitride based mesoporous material as a polysulfide barrier for high capacity lithium-sulfur battery
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DOI：
10.1016/j.jelechem.2019.05.006
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发表时间：
2019-06-15
影响因子：
4.5
通讯作者：
Rangarajan, Venkatesan
中科院分区：
文献类型：
--
作者：
Angamuthu, Gnanavel;Babu, Dasari Bosu;Rangarajan, Venkatesan
采用水热法制备了二硫化钼（MoS 2）锚定的氮化碳（CN）基纳米材料，将硫限制在CN上，用作锂硫（Li-S）电池的硫主体。结果表明，所制备的材料具有良好的电化学性能，0.5C倍率下的首次充放电容量为1252 mAh g（-1），200次循环后的可逆容量为680 mAh g（-1）。与裸CN相比，CN/MoS 2的增强的容量和循环稳定性归因于锚定的MoS 2，其可以改变CN/MoS 2基杂化物的结构、物理化学和增加的电化学活性表面积。
Molybdenum disulfide (MoS2) anchored carbon nitride (CN) based nanomaterial have been developed by using the hydrothermal method, which confines sulfur on to the CN and is utilized as a sulfur host for Li-Sulfur (Li-S) battery. The prepared material CN/MoS2 demonstrated enhanced electrochemical performance with an initial charge-discharge capacity of 1252 mAh g(-1) and 1264 mAh g(-1) at 0.5C rate, with a reversible capacity of 680 mAh g(-1) after 200 cycles. The enhanced capacity and cyclic stability for CN/MoS2 in comparison with the bare CN is attributed to anchored MoS2 which can change the structural, physiochemical and increased electrochemical active surface area of CN/MoS2 based hybrid.