优化水根基氧气功能化活性碳用于增强型超级电容器
Tilahun Temesgen1, Yilkal Dessie2, Eneyew Tilahun2
1Chemistry Department, School of Natural Science, Dambi Dollo University, P O Box 260 Dambi Dollo, Ethiopia.
ACS omega
|July 22, 2024
概括
这项研究优化了使用化学激活从水黄废物中产生的活性炭 (AC). 由此产生的交流电源在储能应用中表现出良好的特定电容和稳定性.
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
- 绿色化学 绿色化学
背景情况:
- 可持续的储能对环境保护至关重要.
- 来自生物质的活性炭 (AC) 为能源应用提供了低成本,环保的解决方案.
- 水是一种丰富的废物,适合用于交流生产.
研究的目的:
- 为了优化从水黄废物中制备活性炭.
- 为了确定化学激活和碳化时间的理想条件.
- 为了评估电荷存储优化的交流电源的电化学性能和稳定性.
主要方法:
- 使用I-最佳设计优化混合化学激活 (氧化和碳酸) 和碳化时间.
- 使用TGA/DTA,XRD,FTIR,BET,SEM-EDS,TEM,HRTEM和SAED对活性炭进行了表征.
- 通过循环电量计 (CV) 和电化学阻抗光谱学 (EIS) 评估电化学性能,使用电位器.
主要成果:
- 优化AC制备涉及≈17gKOH,≈11gK2CO3,和≈1小时的碳化时间.
- 设计模型预测的最大特异电容为≈75.2 F/g.
- 在2A/g的100个循环后,优化的交流电极保持了71.57%的效率,显示出良好的稳定性.
结论:
- 来自水的优化交流表现出有希望的特定电容和循环稳定性.
- 这种方法提供了一种可持续的途径,用于生产具有成本效益的活性碳,用于储存可再生能源.
- 该研究验证了使用统计设计模型来优化生物质衍生材料的能源应用.
更多相关视频
12:00Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
Published on: January 7, 2022
12.1K
08:59Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance
Published on: November 30, 2022
4.4K
相关概念视频
03:12Batteries and Fuel Cells
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
01:23Microbial Fuel Cells
Microbial fuel cells (MFCs) are bioelectrochemical devices that generate electricity by exploiting the metabolic processes of electrogenic bacteria. These systems provide a renewable energy source and serve as an innovative method for treating organic waste, such as wastewater.A typical MFC consists of two chambers: an anoxic (oxygen-free) compartment that houses the bacteria and an oxic (oxygen-rich) compartment that contains oxygen as the terminal electron acceptor. Many MFCs use proton...