Latent heat type nanofluid based on MXene and MoS2 modified hierarchical structured phase change nanocapsules for sustainable and efficient light-heat conversion

Fangfang Su, Xiaoqian Li, Zhongjie He, Jinliang Xie, Weirui Zhang, Yangyang Xin, Xiaoyu Cheng, Dongdong Yao, Yaping Zheng

科研成果: 期刊稿件文章同行评审

5 引用 (Scopus)

摘要

Recently, solar energy has garnered widespread attention due to its clean, pollution-free, and renewable characteristics. Among them, latent heat nanofluids (LHNF) are extensively employed in direct absorption solar collectors (DASC) because of their high heat storage density and efficient heat transfer efficiency. In this study, a novel LHNF was prepared through electrostatic interaction between phase change nanocapsules modified with MXene-MoS2 (hereafter named “n-22@SiO2-Ti3C2Tx-MoS2 MEPCN”) and ionic liquid, aiming at sustainable light-heat conversion. Phase change nanocapsules are obtained by encapsulating docosane (n-22) within an inorganic SiO2 shell and modifying it with Ti3C2Tx and MoS2 to improve the absorption of solar energy across the full spectrum. Research indicates that LHNF possesses high thermal stability, low viscosity, and high thermal conductivity. Furthermore, LHNF contains 4 % n-22@SiO2-Ti3C2Tx-MoS2 can achieve full spectral absorption at an optical path length of 0.005 m. The equilibrium temperature of LHNF-10 % under 1 Sun irradiation can reach 76.3 °C, with a light-heat conversion efficiency of 85.62 %. Its energy storage performance remains relatively stable under cycling conditions. In addition, the water evaporation rate of the fiber fabric coated with LHNF-10 % increased by 94.42 % compared to the untreated fabric, and this increase persisted even after sunlight was turned off. Its outstanding light-heat conversion performance is anticipated to confer application advantage in intermittent solar energy utilization, wearable fabrics, and biomedical materials.

源语言英语
文章编号153413
期刊Chemical Engineering Journal
495
DOI
出版状态已出版 - 1 9月 2024

指纹

探究 'Latent heat type nanofluid based on MXene and MoS2 modified hierarchical structured phase change nanocapsules for sustainable and efficient light-heat conversion' 的科研主题。它们共同构成独一无二的指纹。

引用此