The enthalpy value of the cold storage brine gel is as high as 144 Jg −1, stably releasing cold at around −24 °C. (PCMs) to store cooling energy by harnessing the latent
Moreover, PCM microcapsules still have other potential applications such as solar-to-thermal energy storage, electrical-to-thermal energy storage, and biomedicine . Zhang
Microcapsules enhance thermal and mechanical performance of PCMs used in thermal energy storage by increasing the heat transfer area and preventing the leakage of melting materials. Nowadays, a large number of
This study aims to investigate the water retention and heat storage properties of PCH in cooling pavement, providing new insights for mitigating the urban heat island effect.
Moreover, PCM microcapsules still have other potential applications such as solar-to-thermal energy storage, electrical-to-thermal energy storage, and biomedicine . Zhang et al. studied solar-driven PCM
This study focuses on a novel strategy to model thermal energy storage crystalline gels with three-dimensional architecture directly from liquid resin without supporting materials through
The thermal energy storage gel is applied in wearable PTM to generate thermal comfort for human body. It is still a big challenge to develop state-of-art thermal energy storage materials based on phase-change materials (PCMs) with superior thermophysical properties and wearability for efficient advanced personal thermal management (PTM).
The thermal energy storage gels with sandwich structure demonstrate superior thermophysical properties, such as the absence of supercooling (0 °C), high latent heat (158.65 J g −1 ), high form-stability (no leakage), high cyclic stability (200 cycles) and high economic benefits (4.85 × 10 −3 ¥ J −1 ).
Sandwich structured thermal energy storage material constructed by encapsulating inorganic PCM gel in organic PCM gel is proposed. The thermal energy storage gel makes full use of the advantages of inorganic PCM, organic PCM and gel materials. The thermal energy storage gel possesses superior thermophysical properties and wearability.
Considering the above merits, the sandwich structured OD gel@SSD gel@OD gel can be effectively utilized in the wearable PTM to generate thermal comfort for human body. It is anticipated that the multifunctional thermal energy storage gels are promising for the highly efficient applications of PCMs in the next-generation PTM.
As reference samples, neat SSD and neat OD present solid–liquid phase transition within the temperature range of 29.6 °C-38.6 °C and 23.3 °C-37.4 °C ( Figure S8, S9) in the heating process. Their combination OD gel@SSD gel@OD gel demonstrates two-phase transition within the temperature range of 23.3 °C-40.2 °C.
These above results show that the flexible OD gel@SSD gel@OD gel can efficiently store/release thermal energy, and adjust the temperature during the phase-transition process. 3.3. Form stability of the OD gel@SSD gel@OD gel Form stability is another serious challenge for the production and application of PCMs.
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