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Phase Change Material Boosting Electricity Output and Freshwater Production through Hierarchical-Structured 3D Solar Evaporator
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2024-02-28 , DOI: 10.1002/adfm.202316504 Wencheng Li 1 , Zhiheng Zheng 1 , Zhiqiang Qian 2 , Huan Liu 1 , Xiaodong Wang 1
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2024-02-28 , DOI: 10.1002/adfm.202316504 Wencheng Li 1 , Zhiheng Zheng 1 , Zhiqiang Qian 2 , Huan Liu 1 , Xiaodong Wang 1
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Intermittent sunlight irradiation severely limits the performance of solar evaporators for electricity output and freshwater production. To address this issue, a hierarchical-structured three-dimentional (3D) solar evaporator to simultaneously enhance output voltage and freshwater production by integrating a paraffin-type phase change material (PCM) with a circular concave-shaped 3D supporter covered with a carbon-black-nanoparticles-modified poly(ethylene terephthalate) fabric (PMCB) is developed. In this developed 3D solar evaporator, the 3D-printed supporter can trap sunlight to improve solar energy absorption, and the PMCB obtained from hydrophilic and hydrophobic modification can adequately absorb sunlight for electricity generation and water evaporation, resulting in a maximum output voltage of 3.51 V and a high evaporation rate of 4.0 kg m−2 h−1 under natural sunlight illumination. Owing to the introduction of the PCM, the 3D solar evaporator obtains a decrease in the time required for charging a capacitor by 57.9% and an increase in freshwater production by 29.9% compared to the counterpart without a PCM. Through rationally utilizing the solar photothermal energy stored by the PCM and innovatively integrating the PCM and PMCB in a hierarchical-structured 3D supporter, the developed 3D solar evaporator exhibits great application potential for simultaneous electricity generation and freshwater supply under intermittent solar irradiation.
中文翻译：
相变材料通过分层结构 3D 太阳能蒸发器提高电力输出和淡水产量
间歇性的阳光照射严重限制了太阳能蒸发器的电力输出和淡水生产的性能。为了解决这个问题，分层结构的三维（3D）太阳能蒸发器通过将石蜡型相变材料（PCM）与覆盖有碳的圆形凹形3D支撑物集成，同时提高输出电压和淡水产量。开发出黑色纳米颗粒改性聚对苯二甲酸乙二醇酯织物（PMCB）。在这款开发的3D太阳能蒸发器中，3D打印的支撑物可以捕获太阳光以提高太阳能吸收，而经过亲水和疏水改性获得的PMCB可以充分吸收太阳光用于发电和水蒸发，从而产生最大3.51 V的输出电压自然阳光照射下蒸发率高达4.0 kg m −2 h −1 。由于引入了 PCM，与没有 PCM 的同类产品相比，3D 太阳能蒸发器的电容器充电时间减少了 57.9%，淡水产量增加了 29.9%。通过合理利用PCM储存的太阳光热能，并创新性地将PCM和PMCB集成在分层结构的3D支架中，所开发的3D太阳能蒸发器在间歇性太阳照射下同时发电和淡水供应展现出巨大的应用潜力。
更新日期：2024-02-28
中文翻译：
相变材料通过分层结构 3D 太阳能蒸发器提高电力输出和淡水产量
间歇性的阳光照射严重限制了太阳能蒸发器的电力输出和淡水生产的性能。为了解决这个问题，分层结构的三维（3D）太阳能蒸发器通过将石蜡型相变材料（PCM）与覆盖有碳的圆形凹形3D支撑物集成，同时提高输出电压和淡水产量。开发出黑色纳米颗粒改性聚对苯二甲酸乙二醇酯织物（PMCB）。在这款开发的3D太阳能蒸发器中，3D打印的支撑物可以捕获太阳光以提高太阳能吸收，而经过亲水和疏水改性获得的PMCB可以充分吸收太阳光用于发电和水蒸发，从而产生最大3.51 V的输出电压自然阳光照射下蒸发率高达4.0 kg m −2 h −1 。由于引入了 PCM，与没有 PCM 的同类产品相比，3D 太阳能蒸发器的电容器充电时间减少了 57.9%，淡水产量增加了 29.9%。通过合理利用PCM储存的太阳光热能，并创新性地将PCM和PMCB集成在分层结构的3D支架中，所开发的3D太阳能蒸发器在间歇性太阳照射下同时发电和淡水供应展现出巨大的应用潜力。
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