材料科学
热电效应
热电材料
离子键合
相(物质)
离子液体
聚合物
金属
塞贝克系数
纳米技术
热稳定性
复合材料
化学工程
热导率
离子
有机化学
冶金
热力学
物理
工程类
催化作用
化学
作者
Wei Zhao,Wei Zhao,Wei Zhao,Wei Zhao,Wei Zhao,Wei Zhao,Wei Zhao
标识
DOI:10.1002/adma.202402386
摘要
Ionic liquid-based thermoelectric gels become a compelling candidate for thermoelectric power generation and sensing due to their giant thermopower, good thermal stability, high flexibility, and low-cost production. However, the materials reported to date suffer from canonical trade-offs between self-healing ability, stretchability, strength and ionic conductivity. Herein, we develop a self-healing and tough ionogel (PEO/LiTFSI/EmimCl) with tunable thermoelectric properties by tailoring metal-halogen bonding interactions. Different affinities between polymer matrix and salts are exploited to induce phase separation, resulting in simultaneous enhancement of ionic conductivity and mechanical strength. Molecular dynamics simulations and spectroscopic analyses show that Cl
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