基于前离子离子液体2-基乙酸乳酸和酸的相变复合物,用于在中间温度下的热能存储系统
Masumeh Mokhtarpour1, Hemayat Shekaari2, Ali Rostami3
1Department of Physical Chemistry, University of Tabriz, Tabriz, Iran.
Scientific reports
|July 7, 2025
概括
新的离子液态相变材料 (PCM) 与酸提供成本效益高的热能存储. [HEA]La/SA在太阳能和废热应用中表现出优异的潜热和热稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 可再生能源可再生能源是可再生能源.
背景情况:
- 换相材料 (PCM) 对热能储存 (TES) 系统至关重要.
- 离子液体 (ILs) 为先进的PCM应用提供独特的特性.
- 开发具有成本效益和稳定的PCM对于太阳能和废热利用至关重要.
研究的目的:
- 合成和表征基于离子液体和酸的新型相变复合物.
- 评估这些新PCM的热能储能能力,稳定性和成本效益.
- 了解这些离子PCM增强性能背后的分子机制.
主要方法:
- 离子液-酸复合物的合成:三2-乙烯酸乳酸 ([THEA]La),二2-乙烯酸乳酸 ([BHEA]La) 和2乙烯酸乳酸 ([HEA]La) 与酸 (SA).
- 差分扫描热量计 (DSC) 用于评估潜热和热容量.
- 热稳定性分析 (例如TGA) 用于确定材料降解温度.
主要成果:
- 合成的PCM在323到423K的温度范围内有效地工作.
- 与其他配方相比,PCM1 ([HEA]La/SA) 呈现出高达245J/g的潜在热量和优越的热容量.
- PCM1 ([HEA]La/SA) 显示出极好的热稳定性,保持了97.21%的完整性.
结论:
- 基于离子液体的PCM,特别是[HEA]La/SA,为热能存储提供了一个有希望的,具有成本效益的解决方案.
- ILs固有的"绿色"质量和可调节性质使它们成为先进PCM开发的理想选择.
- 结合在提高这些离子材料的热能存储性能方面发挥着重要作用.
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