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作为储能应用的潜在电极材料,MWCNT辅助碳化物MXene的增强电化学性能

M Waqas Hakim¹, Irfan Ali¹, Sabeen Fatima¹

¹Physics Characterization and Simulations Lab (PCSL), Department of Physics, School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), Islamabad 54000, Pakistan.

|March 4, 2024

概括

一种新的Mo2TiC2Tx MXene复合物与碳纳米管显著提高了超级电容器的性能. 这种MXene材料的特定电容增加了四倍,非常适合用于储能应用.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
纳米技术纳米技术

背景情况:

像MXenes这样的二维 (2D) 材料提供了显著的结构灵活性.
通过选择性蚀刻,从MAX阶段合成MXenes.

研究的目的:

准备Mo2TiC2TxMXene和一个复合物与多壁碳纳米管 (MWCNTs).
为了提高超级电容器应用的电化学性能.

主要方法:

对Mo2TiAlC2Tx MAX相进行选择性化学蚀刻,以产生Mo2TiC2Tx MXene.
复合形成的Mo2TiC2Tx MXene与CTAB移植的MWCNTs.
使用结构,形态,元素,振动和表面分析技术进行表征.
在1M KOH电解质中使用循环电量计和静电电荷放电来评估电化学性能.

主要成果:

这种Mo2TiC2Tx MXene的特定电容为425 Fg-1.1.
这种MWCNTs@Mo2TiC2Tx复合材料在5mVs-1.1下显著增强了1740 Fg-1 (几乎增加了四倍) 的特定电容.
与原始的MXene相比,复合物显示出更好的电化学性能和反应动力学.

结论:

这种MWCNTs@Mo2TiC2Tx复合材料具有卓越的电化学性能.
性能提升归因于增加的活性表面积和提高的导电性.
这种复合材料是先进超级电容应用的有希望的候选者.

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