在Ni-Foam上微波构建NiSb/NiTe复合材料,用于高性能超级电容器
Haidong Zhao1, Xiaoyan Hu1, Hongjie Kang1
1School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, PR China.
ACS omega
|January 22, 2024
概括
微波辅助合成产生了NiSb/NiTe/Ni复合材料,用于高性能超级电容器. 这些材料表现出特殊的电容和长期循环稳定性,使它们成为储能应用的理想选择.
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.
- 开发具有高容量和稳定的先进电极材料是必不可少的.
- 基于的复合材料具有提高电化学性能的潜力.
研究的目的:
- 使用微波方法合成NiSb/NiTe/Ni复合材料.
- 为了评估这些复合材料作为超级电容器电极的电化学特性.
- 构建和测试一个不对称的超级电容器装置.
主要方法:
- 对于NiSb/NiTe/Ni复合材料的微波辅助合成.
- 用于晶体结构分析的X射线光电子光谱 (XPS) 和X射线衍射 (XRD).
- 扫描电子显微镜 (SEM) 和能量分散光谱 (EDS) 用于形态学和元素分析.
- 电化学测试,包括循环电压测量和静电电荷放电 (GCD).
主要成果:
- 成功合成了NiSb/NiTe/Ni复合材料.
- 复合电极在1Ag-1时表现出1870Fg-1的特定电容.
- 实现了卓越的循环稳定性,在30,000个循环后在10 A g-1保持了81.5%的容量.
- 一个不对称的超级电容器 (NiSb/NiTe//AC) 显示出高能量密度 (224.6 μW h cm-2) 和功率密度 (750 μW cm-2).
- 不对称的装置在1万个循环后保持了83%的容量.
结论:
- 微波方法对于开发用于超级电容的NiSb/NiTe/Ni复合材料是有效的.
- NiSb/NiTe作为一种高性能阴极材料,具有卓越的电容和稳定性.
- 非对称超级电容器表现出有希望的能量和功率密度,具有良好的循环性能.
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