铁和添加的小麦分层有孔的碳材料用于超级电容器
Xiaoshuai Sun1, Xiangyu Chen1, Jiahua Ma1
1State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China.
Nanomaterials (Basel, Switzerland)
|November 8, 2024
概括
研究人员从小麦中开发了用于超级电容器的铁和联合合的多孔碳 (WSC-Fe/N). 这种先进的电极材料显示出高容量和稳定性,可有效储存能量.
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
- 可再生能源可再生能源是可再生能源.
背景情况:
- 超级电容器对于储能至关重要.
- 开发具有成本效益和可持续的电极材料至关重要.
- 多孔碳材料为电化学应用提供了很大的表面积.
研究的目的:
- 从小麦中合成和表征一种新的铁和联合合的多孔碳材料 (WSC-Fe/N).
- 为了评估WSC-Fe/N-900作为超级电容器电极材料的电化学性能.
- 探索材料结构和电化学性质之间的关系.
主要方法:
- 小麦被用作碳化激活的前体.
- 铁 (FeCl3) 和 (NH4Cl) 在碳基质中被配合.
- 使用循环电量计,静电电荷放电和电化学阻抗光谱分析了电化学性质.
- 材料的特征包括X射线衍射 (XRD) 和拉曼光谱.
主要成果:
- WSC-Fe/N-900的特异性表面积高 (2576.6 m2/g),微孔和中孔很丰富.
- 该材料表现出优异的石墨化,具有最佳的铁剂 (1.7重量%).
- 在0.5A/g时,特定电容达到400.5F/g,在10A/g时保持308F/g.
- 超级电容器设备在250W/kg时达到9.2Wh/kg的能量密度,并在10,000个循环后保持93%的电容.
结论:
- WSC-Fe/N-900材料表现出优越的电化学性能,包括高容量和出色的稳定性.
- 孔隙结构和协同兴奋剂增强了离子扩散和整体电容.
- 本研究提出了一种可持续且具有成本效益的方法,用于开发用于储能应用的先进电极材料.
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