机械坚固和高潜热固体-固体相变材料通过H-结合合作战略进行能量储存和转换
Zhiqiang Li1, Chunhua Ge1, Daming Feng1
1College of Chemistry, Liaoning University, 66 Chongshan Middle Road, Huanggu District, Shenyang, Liaoning, 110036, P. R. China. chhge@lnu.edu.cn.
Materials horizons
|October 10, 2025
概括
具有强键的工程固体-固体相变材料 (SSPCMs) 实现了卓越的机械强度和高热能储能能力. 这一突破为可持续能源应用提供了增强的可回收性和自我修复性.
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.
- 可持续能源 可持续能源
背景情况:
- 固体-固体相变材料 (SSPCMs) 面临着平衡机械强度与热能存储 (TES) 容量的挑战.
- 现有的SSPCM通常会损害储能效率的稳定性.
- 开发具有高机械完整性和显著潜热的材料对于先进的TES至关重要.
研究的目的:
- 设计具有增强机械强度和高热能储能能力的新型SSPCM.
- 通过超分子设计克服传统SSPCM的局限性.
- 探索先进材料中动态结网络的潜力.
主要方法:
- 使用集成UPy二次体和尿连接的等级键阵列制造SSPCM.
- 机械性能的表征,达到29.3MPa的强度.
- 热能储能容量的量化,隐性热量为133.7Jg-1和92%的重量相变组分.
- 评估额外的特性,如可回收,形状记忆和自我修复.
- 研究键在分散化多壁碳纳米管 (MWCNTs) 中的作用.
主要成果:
- 由于由强和弱键组成的交联结构,设计的SSPCM表现出异常的机械强度 (29.3MPa).
- 该材料表现出高相变成分 (92 wt%) 和大量的潜热 (133.7 J g-1).
- 动态的键网络使其具有出色的可回收性,形状记忆和自我修复能力.
- 实现了MWCNTs的均分散,促进光热转换和朱尔加热应用.
结论:
- 一个超分子设计策略成功地创造了SSPCM,在机械强度和TES容量的最佳平衡中.
- 层次化的键阵列为开发高性能,多功能储能材料提供了一个多功能平台.
- 这种方法为可持续能源储存建立了一个新范式,解决了该领域的关键局限性.
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