高容量3D Ti3C2T MXene超级电容器与终端组修改的实施
Zemao Xiao1,2, Kaisheng Sun1, Yang Zheng1
1Xinjiang Production & Construction Corps Key Laboratory of Advanced Energy Storage Materials and Technology and Department of Physics, College of Science, Shihezi University, Shihezi 832003, China.
研究人员开发了一个用于超级电容器的3D交叉链接MXene膜 (Zn-A-MXene). 这种材料显著提高了灵活设备的能量存储能力和稳定性.
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
- 储能 储能 储能 储能 储能 储能
背景情况:
- 对于超级电容器,MXene材料具有很高的理论容量.
- 实用能力有限阻碍了基于MXene的超级电容器的开发.
- 表面功能组和结构完整性对性能至关重要.
研究的目的:
- 为了设计一个具有增强电化学性能的3D交叉链接Ti3C2Tx MXene膜.
- 为了提高MXene电极材料的特定电容和能量密度.
- 开发稳定,高容量的灵活超级电容器.
主要方法:
- 使用离子 (Zn2+) 和NaOH.制造3D交叉链接的MXene膜 (Zn-A-MXene).
- 表面化和去除非导电性-F功能群.
- 使用开发的MXene膜组装一个全固态柔性超级电容器.
主要成果:
- 3D Zn-A-MXene 薄膜在 1 A g-1 时达到 465.1 F g-1 的高特异电容.
- 灵活的超级电容器在603.16W/kg时显示出9.55Wh/kg的高能量密度.
- 观察到卓越的循环稳定性,在5000个循环后保持81.25%的容量.
结论:
- 离子和NaOH处理的协同效应提高了电极面积和电解质的可访问性.
- 开发的3D Zn-A-MXene膜是高性能灵活超级电容器的有前途的电极材料.
- 这种方法为设计先进的基于MXene的储能设备提供了一个创新的策略.
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