马诱导的相互连接网络在微孔活性碳中从棕树叶下NaNO3氧化环境向高性能电双层电容器 (EDLC) 发展
Nurulsafeelanaria Benwannamas1,2, Tanagorn Sangtawesin3, Murat Yilmaz4
1Department of Chemistry, School of Science, Walailak University, Tha Sala, Nakhon Si Thammarat, 80160, Thailand.
Scientific reports
|August 9, 2023
概括
棕废物的环保活性炭为超级电容电极提供了很大的表面积. 马辐射增强了孔隙结构,为储能应用提供了出色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:
- 活性炭 (AC) 对于超级电容器电极至关重要.
- 开发可持续和高效的交流生产方法是必不可少的.
- 棕树枝是一个可行的,未充分利用的生物质资源.
研究的目的:
- 开发一种环保方法,从棕树叶中生产活性炭.
- 为了利用这些交流电源作为超级电容电极的活性材料.
- 调查玛辐射对交流电特性和电化学性能的影响.
主要方法:
- 使用稀释H2SO4.4的棕树叶的水热碳化.
- 低度KOH激活型热解.
- 用NaNO3.3进行玛诱导的表面修饰.
- 通过SEM-EDX,BET,FTIR,XRD和拉曼光谱进行表征.
- 使用循环电压计,静电电荷放电和EIS进行电化学评估.
主要成果:
- 在马辐射后,获得了AC最大的Brunauer-Emmett-Teller (BET) 表面积为1365 m2g−1.
- 观察到辐射诱导的相互连接网络形成和微孔生成.
- 制造的超级电容电极表现出高特异电容 (309 F g-1).
- 在1万个周期中表现出极好的循环稳定性.
结论:
- 这种新的环保方法有效地从棕垃圾中产生高性能AC.
- 马辐射显著提高了交流电的表面积和电化学特性.
- 开发的AC显示了可持续超级电容应用的巨大潜力.
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