层次的NiCo2O4@CuS复合电极具有增强的表面积,用于高性能混合超级电容器
Chandu V V Muralee Gopi1, Dasha Kumar Kulurumotlakatla2, K V G Raghavendra3
1Department of Electrical Engineering, University of Sharjah Sharjah P. O. Box 27272 United Arab Emirates.
RSC advances
|December 24, 2024
概括
层次的和氧化物-硫化铜 (NiCo2O4@CuS) 复合电极显示了增强的超级电容器性能. 这种无粘合剂材料为储能应用提供高特异电容和出色的稳定性.
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:
- 超级电容器对于储能至关重要.
- 开发高性能电极材料是必不可少的.
- 氧化 (NiCo2O4) 和硫化铜 (CuS) 是有希望的候选物.
研究的目的:
- 为了制造层次的无粘合剂NiCo2O4@CuS复合电极.
- 为了评估它们作为超级电容器的电池类型电极材料的性能.
- 为了研究NiCo2O4和CuS的协同作用.
主要方法:
- 易于在泡上进行热水合成.
- 表面的形态和结构特征.
- 电化学性能测试 (特定电容,速率能力,循环稳定性).
主要成果:
- 成功制造了分层的NiCo2O4@CuS复合电极.
- 增强的表面积 (91.38 m2 g-1) 和孔隙结构.
- 达到高的特定电容 (141.13 mA h g-1 在1 A g-1).
- 证明了出色的速度能力和循环稳定性 (在3000个循环后保持88.62%).
- 混合超级电容器设备实现了高能量密度 (28.85 W h kg-1) 和稳定性 (在4000个循环后保持87.59%).
结论:
- NiCo2O4@CuS复合电极表现出优越的电化学性能.
- NiCo2O4和CuS之间的协同效应增强了界面电子分离和转移.
- 这种材料是先进超级电容应用的有希望的候选材料.
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