基于Ti和Ti3C2PBrxMXene的-P功能组的伪电容性的双氧反应场所
Jiamin Zhu1, Shengli Zhu1,2,3, Zhenduo Cui1,2,3
1School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China.
Angewandte Chemie (International ed. in English)
|April 22, 2024
概括
研究人员通过用的功能组取代来开发了新的Ti3C2Px MXenes. 这种修改显著提高了储能应用的面积容量和稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 电化学 电化学 电化学
背景情况:
- 根据其结构和功能组,MXenes具有可调节的特性.
- 功能组的修改是提高MXene在各种应用中的性能的关键.
研究的目的:
- 通过引入的功能组,合成一种新的MXene,Ti3C2Px.
- 研究功能化对Ti3C2Br2 MXene电化学性质的影响.
主要方法:
- 采用两步气相反应,在Ti3C2Br2.2.上用替换的功能组.
- 评估了电化学性能,包括面积电容和循环稳定性.
主要成果:
- 与Ti3C2Br2 MXene (102 mF/cm2) 相比,合成的Ti3C2Px MXene表现出明显改善的面积容量 (360 mF/cm2).
- 在5mA/cm2的电流密度下,Ti3C2Px MXene在10,000个循环中表现出极好的电容保持能力.
- 增强的性能归因于和Ti功能组的双氧化还原位,这表明了伪容量增强机制.
结论:
- MXenes 的功能化是改善电化学能量存储的可行策略.
- 新的Ti3C2Px MXene显示了高性能超级电容应用的巨大潜力.
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