从废物到电力:使用红泥和玉树棒开发结构超级电容器
Zakaria Mohamed Nor1, Fatima Omar Al-Qwairi2, Abdulmajid A Mirghni3
1Department of Civil and Environmental Engineering, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia.
Chemistry, an Asian journal
|November 7, 2024
概括
这项研究利用红泥 (RM) 和木质棒 (JC) 来创建环保的超级电容器. 新的设计增强了结构性质,并提供了有前途的储能能力,具有显著的稳定性.
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
- 可持续工程 可持续工程
背景情况:
- 发展可持续的能源储存对于现代基础设施至关重要.
- 红泥 (RM) 是一个丰富的工业废物,具有材料应用的潜力.
- 来自生物质的活性炭为电极材料提供了一种绿色替代方案.
研究的目的:
- 研究红色泥作为超级电容器中的电解质和分离剂的使用.
- 评估使用红泥和木衍生活性炭的超级电容器的性能和稳定性.
- 评估红泥对超级电容器组件结构性质的影响.
主要方法:
- 红色泥 (RM) 被加工成用于电解质和分离剂.
- 来自木棒 (JC) 的活性炭被涂在钢网电极上.
- 使用RM增强组件制造了超级电容电池.
- 电化学性能使用循环电量计,静电电荷放电 (GCD) 和电化学阻抗光谱学进行了表征.
- 测试了机械性能 (弹性模块,拉伸强度,压力强度).
主要成果:
- 最佳的红泥含量被确定为20%的重量.
- 整合了RM增强的机械性能:弹性模量 (+33%),拉伸强度 (+3%) 和压力强度 (+10%).
- 超级电容电池实现了1.5V的扩展电位,62.3F/g的特定电容,以及19.5Wh/kg的能量密度.
- 该设备在0.4A/g时显示出301.8W/kg的功率密度,在0.8A/g时显示出605.8W/kg的最大功率密度.
- 细胞在450个GCD循环后保留了77%的电容,表明了良好的稳定性.
结论:
- 红泥是超级电容器电解质和分离器的可行和有效材料.
- 柔特衍生活性炭和红泥的协同组合导致了更好的储能性能和机械完整性.
- 这项研究提出了一种具有成本效益和环保的方法,用于从废物中开发先进的超级电容器.
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