兴奋剂对用于超级电容器应用的基于Zn-V-O的TMO的伪电容性性能产生协同效应
Pankaj Kumar Sharma1, Anshuman Sahai1, Deepti Maikhuri1
1Department of Sciences (Physics), School of Sciences, Manav Rachna University Faridabad-121004 Haryana India.
Nanoscale advances
|October 20, 2025
概括
这项研究引入了用添加的瓦纳酸盐 (ZnV2O4) 作为超级电容器 (SC) 的先进电极材料. 莫-兴奋剂增强了特定电容和能量密度,显示了下一代储能器件的巨大潜力.
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 (SC) 对于增加能源需求至关重要,需要高性能电极材料.
- 由于具有多个氧化状态,三元金属氧化物 (TMO) 与单元氧化物相比,具有优越的超容性能.
- 合理设计和TMO的兴奋剂是提高SC性能的关键策略.
研究的目的:
- 为了合成纯和 (Mo) 合的 ZnV2O4三元金属氧化物 (Mo-TMOs) 具有量身定制的纳米结构.
- 为了优化这些材料的电化学性能,用于超级电容器应用.
- 调查Mo兴奋剂对ZnV2O4的结构性,形态性和电化学性质的影响.
主要方法:
- 采用热水合成方法制备纯净和Mo-doped ZnV2O4纳米结构.
- 使用综合分析进行结构和形态表征.
- 使用合成的电极材料制造对称超级电容器设备.
主要成果:
- 与纯ZnV2O4 (697.14 F g-1) 相比,受的ZnV2O4显示出增强的特定电容 (752.08 F g-1 在5 mV s-1) .
- 使用Mo化ZnV2O4的超级电容器装置在可比功率密度下实现了更高的能量密度 (37.60 Wh kg-1).
- 用Mo的样本显示出极好的循环稳定性 (在10,000个循环后保持97.2%) 和高的BET表面积 (100.42m-2g-1).
结论:
- 将Mo纳入ZnV2O4框架有效地提高了电子导电性和氧化还原活性.
- 在超级电容器应用中,Mo doping提高了三元金属氧化物的结构稳定性和电化学性能.
- 合成的Mo-doped ZnV2O4为先进的储能解决方案提供了一个有前途的电极材料.
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