MXenes与兰他的电化学性能
Meriene Gandara1, Bianca Fortes Palley1, Lazar Rakočević2
1Technological Institute of Aviation, Space Science and Technology Graduate Program, Praça Marechal Eduardo Gomes, 50, 12228-900 São José dos Campos, Brazil.
ACS applied materials & interfaces
|September 16, 2024
概括
添加兰的-MXene (Nb-MX/La) 通过增加层间距以改善电解质相互作用来增强能量储存. 这种新型材料证明了先进的储能设备的增强容量和稳定性.
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:
- MXenes 是先进的2D纳米材料,具有很高的表面积,导电性和水友性,对于储能至关重要.
- 功能化MXenes,如异质原子插入,可以提高其稳定性和电化学性能.
研究的目的:
- 研究 (La) 原子在-MXene (Nb-MXene) 中的插入,以产生Nb-MX/La.
- 描述合成的Nb-MX/La.的结构,形态和电化学特性.
主要方法:
- 合成中的-MXene (Nb-MX/La) 的合成.
- 使用分析形态,结构和电化学行为的技术进行表征.
- 电化学测试包括充/放电循环,电容,容量,功率和能量测量.
主要成果:
- 兰插入增加了Nb-MXene中的层间距,增强了电解质相互作用.
- Nb-MX/La表现出更好的电化学性能,包括更高的电位窗口和电流密度.
- 在1000个循环后,实现了157 mF cm-2的特定电容,42 mAh cm-2的特定容量,37.5 mW cm-2的特定功率和14.1 mWh cm-2的特定能量.
结论:
- 兰兴奋剂是一种有效的策略,可以改善Nb-MXene用于储能的性能.
- 增强的层间距和电化学性能使Nb-MX/La成为下一代储能设备的有希望的材料.
- 该研究强调了功能化MXenes在推进能源存储技术方面的潜力.
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