Lowe Alexander R, Wong William S Y, Tsyrin Nikolay, Chorążewski Mirosław A, Zaki Abdelali, Geppert-Rybczyńska Monika, Stoudenets Victor, Tricoli Antonio, Faik Abdessamad, Grosu Yaroslav
Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland.
Nanotechnology Research Laboratory, College of Engineering and Computer Science, The Australian National University, Canberra ACT 2601, Australia.
Langmuir. 2021 Apr 27;37(16):4827-4835. doi: 10.1021/acs.langmuir.1c00005. Epub 2021 Apr 12.
On-demand access to renewable and environmentally friendly energy sources is critical to address current and future energy needs. To achieve this, the development of new mechanisms of efficient thermal energy storage (TES) is important to improve the overall energy storage capacity. Demonstrated here is the ideal concept that the thermal effect of developing a solid-liquid interface between a non-wetting liquid and hydrophobic nanoporous material can store heat to supplement current TES technologies. The fundamental macroscopic property of a liquid's surface entropy and its relationship to its solid surface are one of the keys to predict the magnitude of the thermal effect by the development of the liquid-solid interface in a nanoscale environment-driven through applied pressure. Demonstrated here is this correlation of these properties with the direct measurement of the thermal effect of non-wetting liquids intruding into hydrophobic nanoporous materials. It is shown that the model can resonably predict the heat of intrusion into rigid mesoporous silica and some microporous zeolite when the temperature dependence of the contact angle is applied. Conversely, intrusion into flexible microporous metal-organic frameworks requires further improvement. The reported results with further development have the potential to lead to the development of a new supplementary method and mechanim for TES.
按需获取可再生和环境友好型能源对于满足当前及未来的能源需求至关重要。要实现这一点，开发高效热能存储（TES）的新机制对于提高整体储能能力很重要。这里展示了一个理想的概念，即在非润湿性液体与疏水性纳米多孔材料之间形成固液界面的热效应可以储存热量，以补充当前的TES技术。液体表面熵的基本宏观性质及其与固体表面的关系是通过施加压力在纳米尺度环境中由液固界面的形成来预测热效应大小的关键之一。这里展示了这些性质与对非润湿性液体侵入疏水性纳米多孔材料的热效应的直接测量之间的这种相关性。结果表明，当应用接触角的温度依赖性时，该模型可以合理地预测侵入刚性介孔二氧化硅和一些微孔沸石的热量。相反，侵入柔性微孔金属有机框架则需要进一步改进。所报道的进一步发展的结果有可能导致开发一种新的TES补充方法和机制。
