Abstract
Recently, engineers and researchers have shown great interest in thermal energy storage (TES) through phase change materials (PCMs). This work designed a polyethylene glycol (PEG) / reduced graphite oxide nanoparticle (rGONP) incorporated in carbon nanofiber (CNF) shape-stabilized phase change nanocomposite (SSPCN) with different amounts of rGONP in nanofibers via an electrospinning process. PEG as PCM was absorbed in and/or supported by overlaid nanofibrous mats (e.g., CNFs, 90CNF + 10rGONP, and 50CNF + 50rGONP); then explored for thermal energy storage and retrieval. The rGONP impact on structural morphologies and thermal energy storage of SSPCNs was determined by FTIR, Raman, XRD, FESEM, TGA, and DSC analyses. According to the results, SSPCNs with and without rGONP loadings had suitable phase transition temperatures with the latent heat ranging from approximately 55.1 to 84.3 J g−1. Furthermore, the thermal conductivity of PCM was synergistically enhanced by CNF and rGONP; this was followed by a gradual increase in the former with the rGONP content. Due to rapid thermal response, the developed SSPCNs demonstrated excellent hi-tech applications in precise temperature control and fast temperature regulation conditions.
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