Excellent Temperature-Control Based on Reversible Thermochromic Materials for Light-Driven Phase Change Materials System

Molecules

Xin Jin¹  Shufen Zhang²  Fangfang Liu²  Bingtao Tang²  MalikMuhammad Umair²  Caixia Ren² 

[1] Eco-chemical Engineering Cooperative Innovation Center of Shandong, Qingdao University of Science and Technology, Qingdao 266042, China;State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China;

关键词: photo-thermal conversion;    phase change materials;    thermochromic compound;    temperature control;   

DOI  :  10.3390/molecules24081623

来源: DOAJ

【 摘 要 】

Light-driven phase change materials (PCMs) have received significant attention due to their capacity to convert visible light into thermal energy, storing it as latent heat. However, continuous photo-thermal conversion can cause the PCMs to reach high thermal equilibrium temperatures after phase transition. In our study, a novel light-driven phase change material system with temperature-control properties was constructed using a thermochromic compound. Thermochromic phase change materials (TC-PCMs) were prepared by introducing 2-anilino-6-dibutylamino-3-methylfluoran (ODB-2) and bisphenol A (BPA) into 1-hexadecanol (1-HD) in various proportions. Photo-thermal conversion performance was investigated with solar radiation (low power of 0.09 W/cm²) and a xenon lamp (at a high power of 0.14 W/cm²). The TC-PCMs showed a low equilibrium temperature due to variations in absorbance. Specifically, the temperature of TC-PCM₁₈₀ (ODB-2, bisphenol A and 1-HD ratio 1:2:180) could stabilize at 54 °C approximately. TC-PCMs exhibited reversibility and repeatability after 20 irradiation and cooling cycles.

【 授权许可】

Unknown