https://scholars.lib.ntu.edu.tw/handle/123456789/641814
標題: | 3D Printed Gelatin Methacrylate Hydrogel-Based Wearable Thermoelectric Generators | 作者: | Hsu, Ching Chieh Lin, Yen-Ting Hong, Shao Huan Jeng, U. Ser Chen, Hsin Lung JIASHING YU CHENG-LIANG LIU |
關鍵字: | 3D printing | hydrogel | microstructure | SAXS | thermo-electrochemical cells | 公開日期: | 1-一月-2024 | 來源出版物: | Advanced Sustainable Systems | 摘要: | The present study focuses on the utilization of a hydrogel consisting of gelatin methacrylate (GelMA) and polyvinyl alcohol (PVA) as a matrix for hosting the redox couple Fe(CN)63−/4−. The hydrogel exhibits a discernable thermopower (Src) of 3 mV K−1. The beneficial effect of the hydrogel microstructure on the mechanical robustness is demonstrated by small-angle X-ray scattering (SAXS). Moreover, the hydrogel is used to construct a 3D printed thermoelectric generator (TEG) consisting of eight p-type thermoelectric legs, which exhibits commendable thermoelectric properties, including an open-circuit voltage of 64 mV and a power density of 4.0 mW m−2 under a temperature gradient (ΔT) of 2.5 K. These findings demonstrate that 3D printing both enhances the quality of the interface between the hydrogel and electrode and provides a promising method for a more facile TEG fabrication process with the potential for further applications in low-grade waste heat harvesting. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/641814 | ISSN: | 2366-7486 2366-7486 |
DOI: | 10.1002/adsu.202400039 |
顯示於: | 化學工程學系 |
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