一种具有高稳定性和度的光热储能相变材料
Shenghua Xiong1,2, Yanlong Shi1,2, Changhui Liu1,2
1College of Civil Aviation Safety Engineering, Civil Aviation Flight University of China Guanghan 618307 China yunyun1990@cafuc.edu.cn xsh@my.swjtu.edu.cn.
RSC advances
|May 22, 2025
概括
研究人员开发了新的CNT-BN-SA-1复合材料,用于增强能量存储. 这些相变材料 (PCM) 显示出高热导率和可靠的热储容量,显示出未来应用的巨大潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 换相材料 (PCM) 对于热能储存至关重要.
- 提高PCM的导热性和可靠性对于实际应用至关重要.
研究的目的:
- 用酸 (SA) 作为相变材料 (PCM) 支持的多壁碳纳米管 (CNT) 和六角化 (BN) 制备和表征新型复合材料.
- 评估准备好的CNT-BN-SA-1复合材料的导热能力,储热能力和长期可靠性.
主要方法:
- 用于复合材料的制备,使用了真空浸技术.
- 系统地调查了导热率,化温度,潜热和循环稳定性.
- 分析了表面形态和高温固体形状保留.
主要成果:
- CNT-BN-SA-1复合材料在15 wt%的CNT-BN含量下达到0.83 W m-1 K-1的最大导热率.
- 该材料的化温度为51.83°C,初始潜热为143.5±5.0 Jg−1.
- 证实了卓越的可靠性,在1000个循环后,潜热仍然很高 (147.3 ± 5.0 J g-1),并在暴露在100°C后保持固体形状.
结论:
- CNT-BN-SA-1复合材料具有较高的潜热,卓越的可靠性和卓越的CSP储能能力.
- 这些发现表明,在功能固态相变材料 (FSPCMs) 领域有很大的应用潜力.
- 制备方法为开发先进的相变复合材料提供了有价值的参考.
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