Intercalation and delamination of two-dimensional MXene (Ti3C2Tx)and application in sodium-ion batteries
二维MXene (Ti3C2Tx)的插层和分层及其在钠离子电池中的应用
Guoxia Lv a, Jing Wang a, Zhiqiang Shi a, Liping Fan b
（吕国霞a，王静a，史志强a，范丽萍b）
ABSTRACT：The initial multilayer-structure two-dimensional transition metal carbide MXene (as-Ti3C2Tx) are synthesized by selectively etching Mn 1AXn in HF, and the surface of MXene adhere to some functional groups.Intercalation and delamination by ultrasonication in alcohol or DMSO (dimethyl sulfoxide) produce less lamellar structure of resultant (d-Ti3C2Tx) and change the surface circumstance. This fabricated fewersheets samples not only improve the electrical conductibility, specific area, but also reduce the ion diffusion resistance. Meanwhile, the d-aTi3C2Tx and d-D-Ti3C2Tx show outstanding capacity of 110 or 120 mAh g-1 at 100 mA g-1 with coulombic efficiency of about 95%, which lead to 26% increase compared with as-Ti3C2Tx (95 mAh g1) for sodium-ion batteries, and remarkable capacitance retention of 84.5% or 85.8% after cycles for in alcohol and DMSO, respectively.
摘要：在HF中选择性刻蚀Mn 1AXn合成了初始多层结构的二维过渡金属碳化物MXene (as-Ti3C2Tx)， MXene表面粘附了一些官能团。超声在乙醇或二甲基亚砜中插层和分层，生成较少的片状结构(d-Ti3C2Tx)，改变了表面环境。该方法不仅提高了导电性能和比表面积，而且降低了离子扩散电阻。同时,d-aTi3C2Tx d-D-Ti3C2Tx在100 mA/g库仑效率约为95%,显示突出能力为110或120 mAh/g,导致与as-Ti3C2Tx相比增加26%(95 mAh/g)钠电池,和非凡的电容保留周期后的84.5%或85.8%的酒精和DMSO溶液。
Keywords: Multilayer structure 、 Functional 、 Energy storage
关键词:多层结构，功能，储能
1. Introduction
以上是毕业论文文献综述，课题毕业论文、任务书、外文翻译、程序设计、图纸设计等资料可联系客服协助查找。
