Shape-stable composite phase change materials encapsulated by lignin-based ordered porous carbon for thermal energy storage

Pan, Hong; Li, Tianyang; Xu, Lixin Colin; Li, Keting; Shen, Yong

doi:10.1080/02773813.2023.2187063

Cited by 5 publications

(1 citation statement)

References 37 publications

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“…Combining this information, it is evident that the decomposition temperature of PEG/PC SSPCM is lower than that of PEG. This is likely due to the increased thermal conductivity provided by the loaded bio-carbon and the good encapsulation of polyethylene glycol [ 46 , 47 ]. This demonstrates the good thermal stability and potential energy storage application prospects of PEG/PC SSPCM.…”

Section: Resultsmentioning

confidence: 99%

Multistage Porous Carbon Derived from Enzyme-Treated Waste Walnut Green Husk and Polyethylene Glycol for Phase Change Energy Storage

Wang,

Liu,

Cao

2024

Materials

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The thermal storage performance, cost, and stability of phase-change materials (PCMs) are critical factors influencing their application in the field of thermal energy storage. Porous carbon, with its excellent support, thermal conductivity, and energy storage properties, is considered one of the most promising support matrix materials. However, the simple and efficient synthesis of high-performance and highly active bio-based materials under mild conditions still faces challenges. In our work, a novel method for preparing new functional composite phase-change materials based on enzyme treatment technology and using waste walnut green husk biomass and polyethylene glycol as raw materials was developed. The enzymatic treatment method exposes the internal structure of the walnut green husk, followed by the adjustment of the calcination temperature to increase the adsorption sites of the biochar, thereby stabilizing polyethylene glycol (PEG). The porous properties of walnut green husk biochar effectively regulate the phase-change behavior of polyethylene glycol. In the biochar carbonized at 600 °C, the PEG loading reached 72.09%, and the absorption heat of the solid–solid phase-change material (SSPCM) reached 194.76 J g−1. This work not only enriches the application of biomass in heat storage but also demonstrates the broad prospects of SSPCMs in solar thermal utilization.

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Section: Resultsmentioning

confidence: 99%