在N-化碳纳米管内外的NiCo化合物构建了高能量密度超级电容器的双增强层次结构
Lansen Bi1, Qingbin Tian1, Lei Geng2
1College of Electromechanical Engineering, Qingdao University of Science and Technology, Shandong Engineering Laboratory for Preparation and Application of High-Performance Carbon Materials, Qingdao 266061, China. gaojs@qust.edu.cn.
Dalton transactions (Cambridge, England : 2003)
|January 8, 2024
概括
研究人员开发了一种用于超级电容器的新型混合电极,使用N-doped碳纳米管球体与NiCo-Se纳米颗粒和NiCo-LDH纳米片. 这种先进的材料实现了高能量密度,这对于实际的超级电容应用至关重要.
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:
- 高能量密度对于推进超级电容技术的实际应用至关重要.
- 开发具有协同效应的高效电极材料是提高超级电容器性能的关键.
研究的目的:
- 为高性能超级电容器合成一种新的混合层次电极结构.
- 为了研究N-doped碳纳米管球体,NiCo-Se纳米颗粒和NiCo-LDH纳米片之间的协同效应.
- 为了实现超级电容器的高能量密度,用于实际应用.
主要方法:
- 合成N-化碳纳米管 (NCNT) 球体,封装NiCo-Se纳米粒子 (NP) 并涂上泡 (NF) 基板上的-层双 (NiCo-LDH) 多层纳米片.
- 使用一种自支持策略,涉及 - 普鲁士蓝色类似物 (Ni-Co PBA) 直接连接到NF.
- 混合电极材料的表征和评估其在非对称超级电容器 (ASC) 配置中的电化学性能.
主要成果:
- 合成的混合电极表现出令人印象深刻的特异容量1899Fg-1在1Ag-1.
- 非对称的超级电容器在798W kg-1的功率密度下显示出57.6 W h kg-1的优异能量密度.
- 电极结构增强导电性,并利用协同相互作用提高性能.
结论:
- 该研究提出了一种有效的策略,用于从Ni-Co PBA衍生CNTs合成高性能混合电极.
- 开发的材料实现了高能量密度,满足了超级电容器应用的实际需求.
- 这项工作有助于通过协同设计促进储能材料的进步.
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