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. ...
Photothermal phase change energy storage materials (PTCPCESMs), as a special type of PCM, can store energy and respond to changes in illumination, enhancing the efficiency of energy systems and demonstrating marked potential in solar …
After the incident light is absorbed by a photothermal material, the photon energy is converted into thermal energy through a light-to-heat conversion process. The generated heat will be further …
Photothermal catalysis: From fundamentals to practical ...
Renewable energy generally includes solar energy, biomass energy, geothermal energy, tidal energy, and nuclear energy, etc. Among them, solar energy has drawn much attention due to its noticeable advantages such as large energy capacity, convenient access, wide distribution, no-environmental low cost, etc [ [2], [3], [4] ].
Photothermal phase change energy storage materials (PTCPCESMs), as a special type of PCM, can store energy and respond to changes in illumination, enhancing the eficiency …
Flexible, nanoparticle-free, industrially adaptable waterborne polyurethane (WPU) foams with light-to-thermal energy conversion and latent heat storage capacity …
Emerging phase change material (PCM)-based photothermal conversion and storage technology is an effective and promising solution due to large thermal …
has robust full-spectrum absorption and highly efficient photothermal conversion capability, realizing both thermal energy storage and photothermal conversion, and it will be expected to have a promising future in the field of solar energy storage and 2. 2.1 ...
Thermal energy storage (TES) is essential for solar thermal energy systems [7]. Photothermal materials can effectively absorb solar energy and convert it …
ND was firstly incorporated into NEPCM for efficient solar energy utilization. • The phase change nanocapsules exhibit a high thermal conductivity of 0.747 W/m·K. • The nanocapsules present exceptional latent heat and leak-proof performance. • The photothermal
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 …
The development of advanced multifunctional phase change materials (PCMs) for solar energy harvesting and storage is an important alternative to conventional energy sources. Herein, a novel flexible superhydrophobic thermal energy storage (FSTES) coating without fluoride is prepared by spraying mesoporous C@SiO 2 …
Concept of UV-vis-NIR spectrum solar thermal energy harvesting, storage and release. (a) Illustration for (1) heat generated by photothermal effect (in vis and NIR light) of Cs 0.32 WO 3 nanoparticle, (2) thermal energy absorption by PCM, (3) charging by
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 …
The microcapsules'' morphology, chemical structure, photothermal and thermal storage properties, and thermal stability were investigated. This study confirmed that polydopamine (PDA) doping positively regulates …
Ionic hydrogel thermoelectric materials use the Soret effect to generate a concentration difference by thermal diffusion of ions, which in turn generates a thermal potential [31], [32].When ΔT exists on both sides of the ion-conductive hydrogel, the anions and cations will migrate from the hot end to the cold end under the influence of ion …
Photothermal phase change energy storage materials show immense potential in the fields of solar energy and thermal management, particularly in addressing the intermittency issues of solar power. Their multifunctionality and efficiency offer broad application prospects in new energy technologies, construction, aviation, personal …
A Review on Photothermal Conversion of Solar Energy ...
2 Comprehending of PTC with Synergistic Effects Although "photothermal" has attracted increasing attention in the field of chemical catalysis in recent years, and is far from rare in biomedical applications and water vaporization, it is still a confusing item. [19-21] In biomedical applications or water vaporization processes, "photothermal" generally refers …
1. Introduction Thermal energy management including thermal energy collection, conversion, and storage is becoming increasingly important to effectively utilize thermal energy and thus achieve sustainable development [1].Photothermal energy …
As the implementation of PCM into building components increases the thermal storage capacity of buildings [[11], [12], [13]] and the accumulation of the energy storage and the acceleration of the photothermal …
Novel stearic acid/expanded graphite-graphene films PCMs for photothermal storage. • Enhanced thermal conductivity up to 27.1 W/(m·K) using only 12.6 wt% filler. • Ultra-high thermal conductivity of 105.6 W/(m·K) was attained with only 26.4 wt% filler. • High ...
In the actual energy storage scenario, excessive supercooling degree will cause delayed and inefficient release of thermal energy, reducing energy utilization efficiency [56]. Observing Fig. 4 (c), the incorporation of EG enables significantly improve the supercooling degree of PEG, because the high specific surface area of EG can bring …
DOI: 10.1016/j.est.2023.109203 Corpus ID: 263810576 Flexible phase-change composite films for infrared thermal camouflage and photothermal energy storage @article{Liu2023FlexiblePC, title={Flexible phase-change composite films for infrared thermal camouflage and photothermal energy storage}, author={Huan Liu and Lingyu …
Besides, SAT also is a promising thermal storage media for heat pump energy storage system [7, 16], as shown in Fig. 1 (b).This system can operate a heat pump during nighttime for heating in the thermal storage tank …
Unlike conventional thermal catalysis, photothermal catalysis can use light as an alternative energy source, minimizing energy consumption while achieving larger reaction conversion rates [41]. Over the past few years, metal nanoparticles (NPs) have been playing an important role in photothermal catalysis [ 42 ].
Photothermal phase change energy storage materials show immense potential in the fields of solar energy and thermal management, particularly in …
2 · By coupling photothermal conversion with energy storage technology, storing solar energy in the form of thermal energy, and then releasing the stored thermal energy in the absence of sunlight, sustainable utilization of solar energy can be achieved [8], [9].
Therefore, photothermal PCM@CNC/rGO/PDA/MF microcapsules are promising for solar energy harvesting, thermal energy storage, and release in various …
Fig. 2 a gives the TEM images of BN and GQDs-BN. Comparing with BN, many flaky particles are deposited on GQDs-BN surface, demonstrating the successful deposition of GQDs on BN surface. Fig. 2 b displays the XPS full spectra of BN, OH-BN, KH550-BN and GQDs-BN. b displays the XPS full spectra of BN, OH-BN, KH550-BN and …
Energy storage during daylight and release at night for driving devices was an effective approach [47], [48]. In the process of photothermal catalysis, the solution was heated by light and accompanied by the storage of …
2 · Accordingly the solar to thermal energy conversion efficiencies of LA@CHNP are calculated to be 95.88 % at irradiation intensities 1000 W/m 2. Pure LA and LA@HNP …
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)