纳米材料功能化碳纤维增强复合材料具有储能能力
Venkatesh Gangipamula1,2, Karamat Subhani1, Peter J Mahon3
1School of Engineering, Swinburne University of Technology, Melbourne, VIC 3122, Australia.
Nanomaterials (Basel, Switzerland)
|September 12, 2025
概括
研究人员开发了先进的碳纤维复合材料,用减少的氧化石墨烯和活性炭涂层它们. 这种双层涂层显著增强了能量储存,创造了结构超级电容器,可用于航空航天和汽车应用.
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
- 纳米技术 纳米技术
背景情况:
- 开发用于储能的先进材料对于现代技术至关重要.
- 碳纤维复合材料提供结构完整性,但往往缺乏集成的储能功能.
- 提高碳纤维的表面性能可以提高其电化学性能.
研究的目的:
- 用减少氧化石墨烯 (rGO) 和基于纤维素的活性炭来研究碳纤维的表面修饰.
- 为了提高碳纤维的储能容量,用于结构超级电容器应用.
- 评估开发的结构超级电容器的电化学性能和稳定性.
主要方法:
- 通过使用rGO和活性炭进行双层涂层,对碳纤维的表面进行修改.
- 使用表面功能化碳纤维制造电化学超级电容器.
- 电化学表征,包括特定电容和循环稳定性测量.
- 对称结构超级电容器 (SSSC) 装置的制造和测试.
主要成果:
- 与原始碳纤维相比,双层涂料的表面积增加了约210倍.
- 开发了一个连接良好的纤维-石墨烯活性碳网络.
- 在水性电解质中达到172Fg-1的特定电容,在SSSC设备中达到227mFg-1.
- 证明了卓越的电化学稳定性,在10,000个周期内保持97.3%的电容.
- 通过概念验证SSSC设备成功为LED供电.
结论:
- 用rGO和活性炭对碳纤维的表面功能化显著提高了储能能力.
- 开发的结构超级电容器表现出高性能,稳定性和集成储能潜力.
- 这些先进的碳纤维复合材料对航空航天和汽车工业的结构和功能应用具有前景.
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