通过相位和接口工程构建MoB@LDH异构连接及其衍生物,用于先进的超级电容应用
Chuan Jing1, Leyi Huang2, Shengrong Tao2
1College of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, PR China; Water Environment Engineering Technology Innovation Center, Chongqing Academy of Eco-Environmental Sciences, Chongqing 401120, PR China.
Journal of colloid and interface science
|January 19, 2024
概括
这项研究通过结合MoB MBene和化,增强了超级电容器的层叠双氧化物 (LDH) 材料. 经过修改的MP2材料显示出出色的电化学性能和稳定性,适用于储能设备.
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:
- 层状双氧化物 (LDH) 材料对超级电容器有希望,但受到低导电性和缓慢反应动力学的影响.
- 现有的修改技术,如异质连接形成和化,旨在提高LDH的性能.
研究的目的:
- 为了提高超级电容器基于LDH的电极材料的电化学性能.
- 调查MoB MBene作为导电模板和化对LDH属性的协同效应.
主要方法:
- 使用NaOH蚀刻和水热处理制备MoB MBene.
- 用MoB MBene修改LDH和化以引入空缺.
- 用于超级电容器应用的改性材料 (MP2) 的电化学表征.
主要成果:
- MP2在1A/g时达到1731.19F/g的高特异电容.
- 该材料表现出极好的速率能力 (81.28%在10A/g) 和循环稳定性 (88.14%在5000个循环后).
- 一个制造的MP2//AC不对称超级电容器 (ASC) 装置显示,在5000个循环后,能量密度为39.91Wh kg-1和78.76%的电容保持率.
结论:
- 结合的修改策略有效地提高了LDH的电导率和反应动力学.
- 开发的MP2材料是高性能超级电容器的有希望的候选材料.
- 这项工作为储能材料的结构-属性关系提供了洞察力.
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