多元件Co2O3@CoMo2S4 核心外结构作为循环稳定性超级电容器的无粘合物电极
Meilong Wang1, Linsong Li1, Zhentao Liu1
1College of Material and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, PR China.
ACS omega
|March 17, 2025
概括
氧化物和聚硫化物 (Co2O3@CoMo2S4) 的新型核心外结构显著提高了超级电容器的性能. 这一突破为先进的储能系统提供了更好的能量密度和稳定性.
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:
- 过渡性双金属硫化物由于其氧化还原活性和成本效益,对储能具有前景.
- 挑战包括低能量密度和低速率性能,限制了它们的实际应用.
研究的目的:
- 为超级电容器开发先进的核心外结构,使用过渡性双金属硫化物.
- 为了提高超级电容器的电化学性能和能量密度.
主要方法:
- 合成了一个Co2O3@CoMo2S4核心外结构作为导电框架.
- 使用新型核心外材料制造和测试超级电容器.
主要成果:
- Co2O3@CoMo2S4核心外结构在1Ag-1.0下达到4951.8Fg-1的高特异电容.
- 经过5500次循环后,表现出极好的循环稳定性,保持90.85%.
- 由此产生的超级电容器的能量密度为41.66 Wh kg-1和功率密度为0.35 kW kg-1.
结论:
- 与传统的双金属硫化物相比,Co2O3@CoMo2S4核心外结构显著提高了超级电容器的性能.
- 这项研究为开发使用先进的核心外材料的高性能超级电容器提供了可行的途径.
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