论文标题
纳米复合材料系统的热传输特性“多孔硅/离子液体”
Thermal transport properties of the nanocomposite system "porous silicon/ionic liquid"
论文作者
论文摘要
本文研究了纳米复合系统“充满离子液体的多孔硅基质”中的热传输。首先，分别在压电构型和差异扫描量热法中，使用光声方法评估了两个咪唑和一个离子液体的热导率和热容量。然后，使用气声构型中的光声方法研究了复合系统“限制在多孔硅基质内的离子液体”的热传输特性。发现与单个成分相比，复合材料的热导率的显着提高，即（i）原始多孔硅的两次以上，而（ii）离子液体超过八次。这些结果为高效储能设备中热管理领域的创新解决方案提供了新的途径。
This paper investigates thermal transport in a nanocomposite system "porous silicon matrix filled with ionic liquid". First, the thermal conductivity and heat capacity of two imidazolium and one ammonium ionic liquids were evaluated using the photoacoustic approach in piezoelectric configuration and differential scanning calorimetry, respectively. Then, the thermal transport properties of the composite system "ionic liquid confined inside porous silicon matrix" were investigated with the photoacoustic approach in gas-microphone configuration. It was found that a significant enhancement of the thermal conductivity of the composite when compared to the individual components, i.e. (i) more than two times for pristine porous silicon and (ii) more than eight times for ionic liquids. These results provide new paths for innovative solutions in the field of thermal management in highly efficient energy storage devices.
