晶体结构对CoMoO电池类型超级电容电极4性能的影响
Kunli Yang1, Joseph P Cline2, Bohyeon Kim1
1Department of Chemical and Biomolecular Engineering, Lehigh University Bethlehem PA 18015 USA mcintosh@lehigh.edu.
RSC advances
|March 12, 2024
概括
聚酸 (CoMoO4) 的水合相为超级电容器提供了更高的特异性容量,而β相表现出优越的长期稳定性. 晶体阶段显著影响电池类型超级电容器的性能.
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:
- 聚酸 (CoMoO4) 被认为是电池类型超级电容器的潜在电极材料.
- 高存储能力和循环稳定性是超级电容电极的关键性能指标.
研究的目的:
- 调查晶相对CoMoO4.4电化学性能的影响.
- 为了比较水合相和β相CoMoO4.4的特性.
主要方法:
- 在泡上用水合物阶段CoMoO4的热水合成.
- 在惰性大气中化,形成β相CoMoO4.
- 形态表征和电化学性能测试 (特定容量,速率能力,循环稳定性).
主要成果:
- 水合物和β相CoMoO4都表现出纳米板形态.
- 与β相相比,酸相CoMoO4的特异能力更高.
- 较低的合成温度导致更好的速率能力.
- 贝塔阶段的CoMoO4表现出比水合物阶段更好的长期循环稳定性.
结论:
- CoMoO4 的晶体相极大地影响了其超级电容器的性能.
- 水合相CoMoO4适用于高容量应用,而β相CoMoO4则更适用于长期稳定的能量存储.
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