三级g-C3N4/Co3O4/CeO2纳米结构复合材料用于电化学储能超级电容器
Mule Vijayalakshmi1, Rui Wang1, Won Young Jang1
1School of Mechanical Engineering, Yeungnam University, 280 Daehak-ro, Gyoungsan-si, Gyeongsangbuk-do, 38541, Republic of Korea.
研究人员为混合超级电容器开发了新的CoCe/g-C3N4三元电极. 这些电极为可再生能源应用提供卓越的能量存储,高容量和出色的稳定性.
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:
- 化石燃料的使用导致二氧化碳排放和能源耗尽.
- 环保的储能解决方案至关重要.
- 混合超级电容器 (HSC) 提供高容量和快速充电.
研究的目的:
- 在3D花样Co3O4/CeO2 (CoCe) 三元异构结构上合成和评估新的2Dg-C3N4纳米片.
- 为高性能混合超级电容器开发先进的电极材料.
- 为了研究三元复合物的协同作用对电化学性能.
主要方法:
- 在3D花样Co3O4/CeO2 (CoCe) 三元协同异构结构上支持的2Dg-C3N4纳米片的合成.
- CoCe/g-C3N4复合电极的制造.
- 电化学表征包括特定电容,循环稳定性和电化学阻抗光谱 (EIS).
- 组装和测试一个双电极HSC装置.
主要成果:
- CoCe/g-C3N4三元复合电极在1Ag-1下达到1088.3Fg-1的特定电容.
- 该电极在5000个循环中显示了96%的电容保留,显著超过原始g-C3N4和CoCe电极的性能.
- EIS分析表明,CoCe/g-C3N4电极中的电荷传递电阻降低.
- 制造的HSC设备在10000个循环后表现出优异的保留性,具有高能量 (37.4Wh kg-1) 和功率 (749.9W kg-1) 密度.
结论:
- CoCe/g-C3N4三元复合物表现出由于协同效应和增加活性位点而提高了电化学性能.
- 这些新型电极对高性能混合超级电容器和其他可再生能源储能系统充满希望.
- 这项研究强调了三元异构结构在推进储能技术方面的潜力.
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