Abstract In this paper, a new strategy was studied to fabricate graphene aerogel (GA)/polyethylene glycol (PEG) shape-stabilized phase change materials (PCMs) using a one-step method, i.e., when GA was set up based on the sheets of graphene oxide (GO), PEG was impregnated into the GA, simultaneously. PEG was restricted by GA owing to its capillary forces. Meanwhile, GA acted as supporting materials and thermal conductivity passageway; the GA/PEG shape-stabilized PCMs presented high heat storage capacity, and the PCMs kept their shapes stable without any leaking owing to GA more than the melting point of PEGs about 40 °C; the thermal conductivity of PEG-4K, PEG-6K, and PEG-10K with 1.30 wt% GA were increased about 28.86%, 27.74%, and 33.26% compared with those of pure PEGs, respectively. Generally, this one-step synthesis of GA/PEG shape-stabilized PCMs can support high loading of PEG, exhibited high thermal reliability and thermal conductivity.

中文翻译：

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构建具有优异热物理性能的 GA/PEG 形状稳定相变材料的一步策略

摘要 本文研究了一种采用一步法制备石墨烯气凝胶 (GA)/聚乙二醇 (PEG) 形状稳定相变材料 (PCMs) 的新策略，即基于片材设置 GA在氧化石墨烯 (GO) 中，PEG 同时浸渍到 GA 中。由于其毛细管力，PEG 受到 GA 的限制。同时，GA作为支撑材料和导热通道；GA/PEG 形状稳定的 PCMs 具有很高的储热能力，并且由于 GA 超过 PEGs 约 40 °C 的熔点，PCMs 保持其形状稳定而没有任何泄漏；与纯 PEG 相比，含 1.30 wt% GA 的 PEG-4K、PEG-6K 和 PEG-10K 的热导率分别提高了约 28.86%、27.74% 和 33.26%。一般来说，