在低通频过应用的电化学电容器中,超细银酸盐颗粒的性能
Pooja Kumari1, Mustafizur R Hazarika1, Chandan Saha1
1Department of Chemical Sciences, University of Johannesburg P. O. Box: 524, Auckland Park 2006 South Africa kaushikm@uj.ac.za.
Nanoscale advances
|December 18, 2025
概括
银酸盐 (Ag2CrO4) 纳米粒子由于其稳定性和导电性,对超级电容器应用具有前景. 一个基于Ag2CrO4的设备展示了有效的能量存储和信号过能力.
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:
- 超级电容器对于储能至关重要,提供长周期寿命和高功率密度.
- 银酸盐 (Ag2CrO4) 是超级电容器的一个有希望的材料,因为它的稳定性,导电性和低溶解性.
研究的目的:
- 为了合成和表征银色酸盐 (Ag2CrO4) 纳米粒子.
- 在超级电容器应用中研究Ag2CrO4纳米颗粒的电化学性能.
主要方法:
- 纳米化Ag2CrO4颗粒 (10-30nm) 通过有机分子介导的复合路径进行合成.
- 使用三电极系统和一个不对称的超级电容器装置 (Ag2CrO4阴极,活性碳阳极) 评估了电化学性能.
主要成果:
- 基于Ag2CrO4的三电极系统实现了131C g-1 (5mV s-1) 和203C g-1 (3A g-1) 的特定容量.
- 非对称超级电容器的特定容量为36C g-1 (在0.4 A g-1) 和31C g-1 (在10 mV s-1),最大功率密度为361 W kg-1,能量密度为1.5 Wh kg-1.
- 该设备成功为LED供电,并在RC电路中充当低通波器.
结论:
- 纳米化Ag2CrO4是高性能超级电容器的可行电极材料.
- 合成的Ag2CrO4纳米粒子显示出储能和频率选择性电子应用的潜力.
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