Molecular photoswitches can be used for solar thermal energy storage by photoisomerization into high-energy, meta-stable isomers; we present a molecular …
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DOI: 10.1016/j.est.2022.106564 Corpus ID: 255666048 Preparation of photothermal conversion and energy storage microcapsules based on Pickering emulsions with poly (p-phenylenediamine) as stabilizer and photothermal materials Phase change materials ...
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Molten salts are widely used as thermal energy storage materials for solar thermal applications, but they suffer from low photothermal conversion efficiency and potential leakage and corrosion …
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Low photothermal conversion efficiency and difficulty in thermal energy storage are still obstacles during the solar energy utilization and conversion [9]. In order to solve the above problems, finding a suitable thermal storage material with photothermal conversion capability for long-term solar thermal energy storage has become a research …
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Compared with the base fluid, the photothermal conversion efficiency of HP-Au/oil nanofluid is improved by 240 %. TiO 2, due to its excellent photostability, is widely used in fields such as photocatalysis and energy storage. However, TiO 2 has a wide band gap and can only collect solar energy in the UV.
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However, the preparation of photocurable phase change materials (PCMs) with photothermal conversion and self-cleaning properties is challenging due to the conflict between the transparency …
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DOI: 10.1016/j.ensm.2024.103466 Corpus ID: 269708562 A study on novel dual-functional photothermal material for high-efficient solar energy harvesting and storage @article{Qian2024ASO, title={A study on novel dual-functional photothermal material for …
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These findings suggest that PCMs can rapidly convert solar energy into thermal energy, facilitating the storage and release of thermal energy. In Fig. 7 (a), we present the maximum temperature attained by samples S2, S4, S5, and S6 under simulated sunlight of 1080 Mw/cm 2 .
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In addition, PCM with high photothermal conversion efficiency are critical to realizing efficient solar energy storage and utilization. Previous studies have demonstrated that photothermal materials such as CuO [16], carbon nanotubes [17], black phosphorus [18], graphene nanoplatelets [19], Fe 3 O 4 [20], and copper sulfide [21] can significantly …
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Photothermal energy conversion and storage are crucial in solar collection systems. However, it is difficult for traditional media to balance high photothermal conversion, thermal conductivity and ...
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Molten salts are widely used as thermal energy storage materials for solar thermal applications, but they suffer from low photothermal conversion efficiency and potential leakage and corrosion issues. In this paper, MXene doping was proposed to improve the thermal properties and photothermal conversion efficiency of …
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Solar photothermal energy-storage technology based on phase change materials (PCMs) is considered to be a promising way to harness solar energy owing to its relatively high efficiency and low cost. This approach can effectively overcome the intermittency of solar irradiation and realize efficient utilization of solar energy [3] .
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These photothermal microPCMs are promising solar-driven energy storage fillers for solar heating of water, energy-saving buildings and thermoregulation textiles [[22], [23], [24]]. PPy was rationally chosen as the photothermal polymer because of its broad-spectrum absorption, high photothermal conversion efficiency, and its facile …
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Harvesting solar energy for efficient photothermal conversion and steam generation over solar evaporators is particularly significant in the context of …
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To alleviate the predicament of resource shortage and environmental pollution, efficiently using abundant solar energy is a great challenge. Herein, we prepared unique …
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In this work, smart thermoregulatory textiles with thermal energy storage, photothermal conversion and thermal responsiveness were woven for energy saving and personal thermal management. Sheath-core PU@OD phase change fibers were prepared by coaxial wet spinning, different extruded rate of core layer OD and sheath layer PU was …
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Synergistically enhancing efficient photothermal conversion and heat energy storage • The light-thermal conversion efficiency of the composite PCMs reaches …
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Various thermal, photo-, and photothermal catalysis processes have been developed to promote solar fuel and chemical energy conversion, delivering different …
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Particularly, photothermal energy storage systems that store excess solar energy generated during the day for nighttime utilization are widely adopted. Stearic acid (SA) has garnered significant attention as a recommended PCM due to its favorable properties [5], [6], such as cost-effectiveness, high thermal storage density, non-toxicity, …
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To meet the requirement of multipurpose applications in infrared thermal camouflage and solar photothermal energy storage, we have developed a series of multifunctional composite films based on polyurethane (PU) as a flexible matrix and double-layered phase-change microcapsules as an additive. ...
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By utilizing PCM as a storage medium in solar energy storage, the mismatch between time and space of solar energy can be solved. Polyethylene glycol (PEG) is a type of organic solid–liquid PCM (Cao et al., 2022b), exhibiting an excellent high latent heat, suitable phase change temperature, no phase separation and low price.
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Solar energy can be absorbed by the photothermal nanomaterials within the shell and converted into thermal energy, then stored by the PCMs inside the capsules. Currently, photothermal materials primarily consist of metal-based plasma, semiconductor materials, carbon-based materials, and organic polymer materials [ 7 ].
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Molecular photoswitches can be used for solar thermal energy storage by photoisomerization into high-energy, meta-stable isomers; we present a molecular design strategy leading to photoswitches ...
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Therefore, to ensure a consistent and sustainable supply of solar energy, it is crucial to develop an advanced heat-energy storage technology. Among the numerous thermal-storage techniques, latent-heat storage by phase change materials (PCMs) is useful as PCMs exhibit a high energy-storage density and maintain a stable heat …
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An effective strategy to employ the synthetic Cu 1.5 Mn 1.5 O 4 spinel-type PTC materials for constructing the STEG device series integrated supercapacitor to achieve the conversion and storage of solar-thermal energy to electrical energy. Download : Download high-res image (223KB) ...
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The utilization of phase change materials (PCMs) for photothermal energy storage in the medium temperature range holds great potential for various applications, but their conventional forms face ...
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To improve the overall solar-thermal energy harvesting efficiency of encapsulated phase change materials (EPCM), a novel hierarchic SiO 2 /PCN-224/PB (ES-PCN-PB) composite shell was developed and synthesized through in-situ growth of PCN-224 decorated with PB particles onto SiO 2 encapsulated PCM. encapsulated PCM.
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It would be a useful technology to increase the efficiency of solar energy utilization by integrating photothermal catalysis and TEG waste heat recovery for hydrogen-electricity co-generation. On the other hand, solar energy is low density, instability, and intermittency [46] .
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Currently, a major challenge facing phase change materials for solar energy storage is their high cost, particularly due to the expense of the photothermal conversion particles. Therefore, there is an urgent need to find a method to reduce the usage of photothermal conversion particles without compromising their photothermal conversion and storage …
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The composites effectively stored thermal energy through phase transition triggered by solar-to-thermal energy conversion under solar illumination with a high energy storage efficiency of 88.6%. GO sheets modified with anthraquinone dyes (GO-co-Bdye)
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