| Integration of Magnetic Phase-Change Microcapsules with Black Phosphorus Nanosheets for Efficient Harvest of Solar Photothermal Energy | |
Liu, Huan; Qian, Zhiqiang ; Liao, Geqi; Wang, Xiaodong
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| 2021-10 | |
| 发表期刊 | ACS APPLIED ENERGY MATERIALS
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| ISSN | 2574-0962 |
| 卷号 | 4期号:11页码:13248-13262 |
| 摘要 | Solar photothermal energy storage using phase -change material (PCMs) provides sustainable penetration in comprehensive utilization. However, PCMs are obliged to suffer from low conversion and storage effectiveness in solar photo -thermal energy due to a low optical absorption capacity. In this study, we developed a type of magnetic phase-change microcapsule system with superior photothermal energy conversion efficiency. The microcapsule system was constructed with n-docosane as a PCM core and a CaCO3/Fe3O4 composite shell surface-decorated with black phosphorus (BP) nanosheets employing a Pickering emulsion-templated precipitation technique. The presence of BP nanosheets on the capsule surface not only enhanced the emulsion stability to facilitate the fabrication of a tight CaCO3-based shell, resulting in a high latent heat capacity of the microcapsules, but also improved thermal conduction of the microcapsule system, promoting a fast thermal response and heat transfer. The microcapsule system shows a high phase-change enthalpy of over 120 J/g and a significant increase in thermal conductivity by over 400% compared to pure PCM. More importantly, the microcapsule system exhibits a high photothermal conversion efficiency of 95.08%, which is superior to most of the PCM-based composite materials reported in the literature. There is only 0.02% conversion efficiency lost after the 10-cycle photothermal conversion experiment for the microcapsule system, indicating a good working stability for the long-term use of solar photothermal conversion and storage. By decorating magnetic phase-change microcapsules with BP nanosheets on the shell, this study offers a new strategy for development of PCM-based composite materials for efficient harvest and utilization of solar |
| DOI | 10.1021/acsaem.1c02835 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/34577 |
| 专题 | 盐湖资源与化学实验室 |
| 推荐引用方式 GB/T 7714 | Liu, Huan,Qian, Zhiqiang,Liao, Geqi,et al. Integration of Magnetic Phase-Change Microcapsules with Black Phosphorus Nanosheets for Efficient Harvest of Solar Photothermal Energy[J]. ACS APPLIED ENERGY MATERIALS,2021,4(11):13248-13262. |
| APA | Liu, Huan,Qian, Zhiqiang,Liao, Geqi,&Wang, Xiaodong.(2021).Integration of Magnetic Phase-Change Microcapsules with Black Phosphorus Nanosheets for Efficient Harvest of Solar Photothermal Energy.ACS APPLIED ENERGY MATERIALS,4(11),13248-13262. |
| MLA | Liu, Huan,et al."Integration of Magnetic Phase-Change Microcapsules with Black Phosphorus Nanosheets for Efficient Harvest of Solar Photothermal Energy".ACS APPLIED ENERGY MATERIALS 4.11(2021):13248-13262. |
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| Integration of Magne（13607KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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