在高静电场下在泡上构建单层Ti3C2TxMXene,用于高性能超级电容器的高静电场
Liyong Zhang1, Jijie Chen1, Guangzhi Wei1
1Department of Mechanical Engineering, Anhui Science and Technology University, Chuzhou 235000, China.
Nanomaterials (Basel, Switzerland)
|May 24, 2024
概括
本研究提出了一种新方法,用于在泡上制备单层碳化 (Ti3C2Tx) MXene,防止聚合,以提高超级电容器性能. 由此产生的电极表现出高容量和稳定性.
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:
- 二维 (2D) 碳化物 (Ti3C2Tx) MXene对电化学能量存储具有前景.
- 由于表面力,少层或单层Ti3C2Tx的聚合阻碍了其性能.
- 开发自支持电极对于高效的储能应用至关重要.
研究的目的:
- 开发一种易于在泡上制备单层Ti3C2Tx MXene的方法.
- 为超级电容器应用创建自承载电极结构.
- 研究Ti3C2Tx度对电化学性能的影响.
主要方法:
- 在泡上使用高静电场制备单层Ti3C2Tx MXene.
- 制造具有不同Ti3C2Tx度的自支电极.
- 超级电容器电极的电化学表征.
主要成果:
- 在2 mA cm-2下达到319 mF cm-2的高特异电容.
- 经过7000次循环后,表现出优异的长期循环稳定性,保持94.4%.
- 观察到面积电容随着负载质量增加而增加,而质量电容则减少.
结论:
- 开发的方法有效地克服了Ti3C2Tx MXene.单层Ti3C2Tx MXene的聚合问题.
- 自支持的Ti3C2Tx/泡 (NF) 电极表现出优越的电化学性能.
- 这项工作提供了一个简单的方法来制造基于MXene的高性能超级电容电极.
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