使用碳纳米管增强热传递的1-octadecanol相变材料
Xiuli Wang1, Qingmeng Wang1, Xiaomin Cheng1,2
1School of Mechatronics and Intelligent Manufacturing, Huanggang Normal University, Huanggang 438000, China.
Molecules (Basel, Switzerland)
|August 14, 2025
概括
这项研究用碳纳米管 (CNT) 增强了1-octadecanol (OD) 相变材料 (PCM),以改善热储. 修改后的PCM显示出更好的导热性和稳定的性能,用于能源应用.
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
- 纳米技术 纳米技术
背景情况:
- 固体-液体相变材料 (PCM) 对于热能存储至关重要,但存在泄漏,低导热率和低能转换等问题.
- 碳纳米管 (CNT) 具有高的导热率,电导率和化学稳定性,使它们成为PCM的有希望的添加剂.
研究的目的:
- 为了研究不同直径和数量的CNT,修饰的1-octadecanol (OD) 的热特性.
- 为了提高OD/CNT复合PCM (CPCM) 的导热性,同时最大限度地减少潜在的热损失.
- 确定CPCM的组成,结构和性能之间的关系.
主要方法:
- 融混合和超声波分散方法用于准备OD/CNTs CPCMs.
- 描述技术包括XRD,FTIR,SEM,DSC和热磁盘,用于物理相位,微观结构,热特性和热导率.
- 进行热充电和释放实验以评估性能.
主要成果:
- 该研究系统地分析了OD/CNTs CPCMs的物理相位,微观结构,相位变换温度,相位过渡,热稳定性和导热性.
- 研究了OD/CNTs CPCM的热充电和释放性能.
- 对于开发的CPCM,建立了组成,结构和性能之间的相关性.
结论:
- 用碳纳米管对1-octadecanol的修改有效地提高了导热性.
- 开发的OD/CNTs CPCM显示了改善的热性能和稳定的热储性能.
- 这项研究提供了对优化CPCM的见解,以实现高效的热能存储应用.
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