Thermal energy storage wood (TESW) was fabricated by using graphene aerogel encapsulated polyethylene glycol (PEG) as phase change material and wood as the matrix. The microstructure of TESW was investigated by scanning electron microscope (SEM), the thermal properties of TESW was determined by differential scanning calorimetry (DSC), thermal gravimetric analysis (TG) and laser flash diffusivity apparatus (LFA). The results showed that: (1) graphene aerogel (GA) encapsulated PEG composite was founded in the lumens of wood, there was no apparent interface between PEG and graphene aerogel; (2) the melting and freezing enthalpy of TESW were 11.81 and 27.91 J g −1 , respectively. The melting and freezing point were 20 °C and 15 °C, respectively, which were suitable for human comfortable temperature; (3) incorporation of graphene aerogel improved the thermal conductivity of TESW apparently. Thermal conductivity of TESW was 0.374 W (m*K) −1 , which increased about 27...

中文翻译：

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以石墨烯气凝胶包封的聚乙二醇为相变材料制备储热木材

以石墨烯气凝胶包封的聚乙二醇（PEG）为相变材料，以木材为基质，制备了储热木材（TESW）。用扫描电子显微镜（SEM）研究了TESW的微观结构，用差示扫描量热法（DSC），热重分析（TG）和激光闪光扩散仪（LFA）测定了TESW的热性能。结果表明：（1）在木材的内腔中形成了石墨烯气凝胶（GA）包裹的PEG复合材料，PEG与石墨烯气凝胶之间没有明显的界面；（2）TESW的熔融焓和冷冻焓分别为11.81和27.91J g -1。熔点和凝固点分别为20°C和15°C，适合人体舒适的温度。（3）石墨烯气凝胶的加入明显改善了TESW的导热性。TESW的热导率为0.374 W（m * K）-1，增加了约27 ...