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A structured phase change material integrated by MXene/AgNWs modified dual-network and polyethylene glycol for energy storage and thermal management

Author

Listed:
  • Ma, Yan
  • Zou, Minming
  • Chen, Wenjing
  • Luo, Wenxing
  • Hu, Xiaowu
  • Xiao, Shikun
  • Luo, Lixiang
  • Jiang, Xiongxin
  • Li, Qinglin

Abstract

Phase change materials (PCMs) present promising potential in the application of thermal management. Nevertheless, low thermal conductivity and risk of liquid leakage hindered the development of PCMs with broad adoption. Here, we fabricate a shape-stable composite phase change material by encapsulating polyethylene glycol (PEG) into a dual-network hydrogel, which was modified using Ti3C2Tx MXenes and silver nanowires (AgNWs). With the synergistic effect of MXene nanosheets and AgNWs, the composite material that was prepared demonstrates a significant increase in thermal conductivity, reaching a value of 0.64 (W/m·K) and also exhibits a suitable photo-thermal conversion efficiency (88.9%). Moreover, the resulting composite PCM with high-level of PEG loading (90.1%) deliver a remarkable phase change enthalpy (124.8 J/g), highlighting its excellent energy storage capability. Additionally, the final composite displays reliable structural stability and exceptional thermal management performance by reducing the operational temperature of a typical lithium-ion battery by over 12 °C during a 3C discharge process. We demonstrate a promising approach for developing composite PCM for thermal management.

Suggested Citation

  • Ma, Yan & Zou, Minming & Chen, Wenjing & Luo, Wenxing & Hu, Xiaowu & Xiao, Shikun & Luo, Lixiang & Jiang, Xiongxin & Li, Qinglin, 2023. "A structured phase change material integrated by MXene/AgNWs modified dual-network and polyethylene glycol for energy storage and thermal management," Applied Energy, Elsevier, vol. 349(C).
    • Handle: RePEc:eee:appene:v:349:y:2023:i:c:s030626192301022x
    DOI: 10.1016/j.apenergy.2023.121658
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    Cited by:

    1. Yue, Hao & Ou, Yangcen & Wang, Jiuao & Wang, Haibo & Du, Zongliang & Du, Xiaosheng & Cheng, Xu, 2024. "Ti3C2Tx MXene/delignified wood supported flame-retardant phase-change composites with superior solar-thermal conversion efficiency and highly electromagnetic interference shielding for efficient therm," Energy, Elsevier, vol. 286(C).

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