铁化物颗粒用于高性能超级电容器
Davide Scarpa1,2, Claudia Cirillo1,2, Eleonora Ponticorvo1,2
1Department of Physics "E.R. Caianiello", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
Materials (Basel, Switzerland)
|August 12, 2023
概括
铁 (II) 化物 (FeSe) 显示出作为超级电容电极的前景. 这项研究使用溶热方法合成了FeSe纳米颗粒,实现了高容量和优良的循环稳定性,用于电能存储应用.
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:
- 铁 (II) 化物 (FeSe) 已知具有高温超导性.
- 由于其优势,FeSe正在引起电能储存 (EES) 的注意.
研究的目的:
- 为了合成FeSe纳米颗粒,使用成本效益高的溶热方法.
- 为了评估FeSe作为超级电容器电极的电化学性能.
主要方法:
- 铁Se纳米颗粒的溶热合成.
- 使用循环电量计 (CV),静电充/放电 (GCD) 和电化学阻抗光谱 (EIS) 的电化学表征.
主要成果:
- 在0.5A/g时,高电容为280F/g,高电容为0.5A/g.
- 能量密度为39Wh/kg,功率密度为306W/kg在0.5A/g时.
- 卓越的循环稳定性,在1A/g的30,000个循环后保持92%的电容.
- 低等效串联电阻 (RESR) 的~2 Ω.
结论:
- 合成的FeSe纳米粒子在超级电容器应用中表现出优越的电化学特性.
- 溶热方法对于生产高性能FeSe电极是有效的.
- 铁是先进的电能存储设备的一个有前途的材料.
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