| Title |
High-performance macro-encapsulated composite for photothermal conversion and latent heat storage |
| ID_Doc |
12279 |
| Authors |
Chen, WC; Liu, YX; Liang, XH; Wang, SF; Gao, XN; Zhang, ZG; Fang, YT |
| Title |
High-performance macro-encapsulated composite for photothermal conversion and latent heat storage |
| Year |
2022 |
| Published |
|
| DOI |
10.1016/j.est.2022.105405 |
| Abstract |
The request for green circular economy stimulates the use of solar energy. Capture and storage-release of solar energy can be simultaneously achieved by integrating photothermal conversion particles into phase change materials (PCMs) to obtain dual functional composites. Herein, a simple, cheap strategy for preparing 3D macroencapsulated composite is proposed. Firstly, based on sizes difference, in situ grow nanoscale CuS coating on the surface of foamy Cu. The obtained CuS-Cu porous carrier adsorbs Na2S2O3 center dot 5H(2)O-CH3COONa center dot 3H(2)O eutectic PCM to form semi-shape-stabilized PCM@CuS-Cu. Then, CuS-B4C modified epoxy resin (MEP) thin-layer macro-encapsulates PCM@CuS-Cu to fabricate PCM@CuS-Cu@MEP permanent shape-stabilized composite. The uniform distribution of CuS particles improves the heat transfer and photothermal conversion abilities of composite, as well as its exothermic accuracy shown as a low supercooling degree of only 0.740 degrees C. Photothermal conversion efficiency of PCM@CuS-Cu@MEP is 81.83 %, increased by 12.70 times compared with that of PCM (5.97 %). The MEP helps the composite to have leak-free performance under 60 degrees C for 72 h, and thermal reliability revealed as consistent thermal properties, crystal phase, composition after 100 heating-cooling cycles. The job provides a novel strategy to uniformly disperse PCM and photothermal conversion particles in space, ensuring the efficiently conversion and storage-release of energy. |
| Author Keywords |
In situ growth; Dual functional composite; Phase change material; Photothermal conversion; Thermal energy storage |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000880407300011 |
| WoS Category |
Energy & Fuels |
| Research Area |
Energy & Fuels |
| PDF |
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