作为超级电容器高效电极材料,CoFe2 - xMnxO4旋转结构的应用
Seyyed Mohammad Hossein Jafari-Mousavi1, Jafar Mostafaei2,3, Mohammad Ahangari4,5
1Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.
Scientific reports
|December 11, 2025
概括
用替代的铁螺旋材料 (CMFO-x) 为超级电容电极进行了合成. CMFO-0.2样本表现出卓越的性能,包括高特异电容和优异的能量密度,证明了其对储能应用的潜力.
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
- 纳米技术 纳米技术
背景情况:
- 超级电容器是重要的储能设备.
- 开发高效的电极材料是提高超级电容器性能的关键.
- 脊柱铁材料提供有前途的电化学性能.
研究的目的:
- 为了合成CoFe2-xMnxO4 (CMFO-x) 螺旋材料.
- 研究它们作为超级电容器的电极材料的潜力.
- 为了评估替代对电化学性能的影响.
主要方法:
- 用于CMFO-x材料的燃烧sol-gel合成方法.
- 用于结构和相纯度分析的X射线衍射 (XRD).
- 扫描电子显微镜 (SEM) 用于形态表征.
- 电化学分析包括循环电压测量和静电电荷放电.
主要成果:
- 成功合成了高纯度的CMFO-x螺旋结构.
- 的兴奋剂导致更小的纳米粒子,增强表面积和电荷转移.
- CMFO-0.2样本显示氧气空缺增加,增加了电化学活性.
- CMFO-0.2电极在3A.g-1时达到433.44Fg-1的高特异电容.
- 基于CMFO-0.2的对称电池在3800W.kg-1的功率密度下表现出极好的能量密度 (438.86Wh.kg-1).
- 在5000次循环后,CMFO-0.2电极保持了92%的电容,这表明其稳定性很好.
结论:
- 部分Mnn+的替代增强了旋转结构中的离子和电子导电性.
- CMFO-0.2材料表现出显著的伪电容性行为和出色的电化学性能.
- 由于其优越的电容,能量密度和循环稳定性,CMFO-0.2是高性能超级电容器的有前途的电极材料.
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