Journal of Energy Storage
The developed DW-CI/EP/PEG exhibits excellent energy storage performance and photothermal conversion ability, showing great potential for applications in solar energy utilisation and …
Enhancing solar photothermal conversion and energy storage …
The photothermal conversion efficiency (γ) is calculated as the ratio of the latent heat-storage energy to the solar irradiation energy throughout the phase-change process as follows [10]: (4) γ (%) = m Δ H m A P Δ t × 100 where m is the mass of the samples, Δ H m is the melting enthalpy of the samples, Δ t is the time for the sample to undergo the melting phase …
Preparation and characterization of highly efficient photothermal ...
The photothermal conversion and energy storage efficiency η of PEG1, PEG2, PEG3 and PEG4 are calculated according to Formula (1). As shown in Table 5, the photothermal conversion and energy storage efficiency of the composite PCM (PEG0) reaches 0.752, while that of the composite PCM (PEG1) in the same content reached 0.864.
Polypyrrole‐boosted photothermal energy storage in …
The photothermal conversion and storage efficiency of ODA@MOF/PPy-6% is up to 88.3%, while that of ODA@MOF is only zero, showing great application prospects in solar energy utilization.
Superhydrophobic multi-shell hollow microsphere confined phase …
However, there are still significant challenges, such as the prevalence of low photothermal conversion efficiency, low thermal conductivity, low energy density, easy leakage, etc. Liu et al. [45] prepared SPCSC with high photothermal conversion efficiency (94.7%) by porous TiO 2-loaded fused PCM, however with low latent heat (118.46 J·g −1) and thermal …
Polypyrrole‐boosted photothermal energy storage in …
1 INTRODUCTION. Renewable, abundant, and clean solar energy is expected to replace fossil fuels and alleviate the energy crisis. However, intermittentness and instability are the deficiencies of solar energy due to its …
Bioinspired wood-based composite phase change materials for …
4 · Download Citation | On Feb 1, 2025, Rongjun Wei and others published Bioinspired wood-based composite phase change materials for efficient photothermal conversion and …
Strategies for enhancing the photothermal conversion efficiency …
In the photothermal process of SIE, sunlight irradiation causes photothermal materials to absorb photons, resulting in photoexcitation. This process drives mobile charge carriers via the light-induced electric field, ultimately converting solar energy into thermal energy [9, 10].The mechanisms underlying photothermal conversion varies between materials and can be …
Elevating the Photothermal Conversion Efficiency of Phase-Change ...
To alleviate the predicament of resource shortage and environmental pollution, efficiently using abundant solar energy is a great challenge. Herein, we prepared unique …
Journal of Energy Storage
Thermal energy storage (TES) is essential for solar thermal energy systems [7].Photothermal materials can effectively absorb solar energy and convert it into heat energy [8], which has become a research hotspot.Phase change materials (PCM) with high energy density and heat absorption and release efficiency [9], have been widely used in many fields as …
Journal of Energy Storage
In order to improve energy efficiency and reduce energy waste, efficient energy conversion and storage are current research hotspots. Light-thermal-electricity energy systems can reconcile the limited supply of fossil fuel power generation with the use of renewable and clean energy, contributing to green and sustainable production and living.
Preparation and characterization of ZnO/SiO
Furthermore, due to the presence of ZnO, the synthesized PCM nanocapsules had excellent UV absorption properties for whole wavelengths, and the absorbed UV light can be converted into heat energy for storage, and the photothermal …
Polyacrylamide phase-change gels based on doped MoS2-rGO for efficient …
The photothermal conversion efficiency of the composite phase change gel reaches 87.5 % due to the high broadband permeability enhancement properties of MoS 2 which is capable of absorbing sunlight ... Form-stable phase change materials based on graphene-doped PVA aerogel achieving effective solar energy photothermal conversion and storage.
A novel phase change materials used for direct photothermal conversion ...
The inherent fluctuation of solar irradiation will seriously affect the stability of energy transfer of traditional photothermal conversion materials. Photothermal conversion phase change materials can combine the mechanisms of photothermal conversion and phase transformation to realize storage or release solar energy at constant temperature by phase …
Weavable coaxial phase change fibers concentrating thermal energy ...
Weavable coaxial phase change fibers concentrating thermal energy storage, photothermal conversion and thermochromic responsiveness toward smart thermoregulatory textiles. Author links open overlay panel Jin Zhang a, Yan Zhang a, ... It is advantageous for improving photothermal conversion efficiency of PM@OD fabrics, ...
Enhanced thermal storage and photo-thermal conversion …
The light-thermal conversion related data for composite PCMs are shown in Table 5, and the photo-thermal conversion efficiency of each sample is shown in Fig. 11 (c). The photo-thermal conversion efficiency of PEG/Ni-BTC is the lowest, only 53.33 %, while the photo-thermal conversion efficiency of PEG/NBC is the highest, reaching 97.96 %.
Cellulose nanofibril/polypyrrole hybrid aerogel supported form …
The development of phase change materials (PCMs) with high energy storage density, enhanced photothermal conversion efficiency and good form-stability is essential for …
Elevating the Photothermal Conversion Efficiency of …
These devised CNT@PCMs cleverly combine the photothermal conversion capability of CNTs and the thermal energy storage capability of traditional PCMs.
Solar RRL
Meanwhile, the as-synthesized FAs/CMs composites also exhibit a remarkable high photothermal energy storage efficiency of up to 93.8%, which is one of the highest values reported to date, making them promising …
Cellulose nanofiber/melanin hybrid aerogel supported phase …
Novel CMPCMs with good structural stability, improved photothermal conversion efficiency, and superior energy storage density were successfully synthesized by impregnating …
Phase change nanocapsules incorporated with nanodiamonds for efficient …
Therefore, the photothermal conversion efficiency of S3 could be calculated as 92.1%. The photothermal conversion efficiency comparison between the present work and previous related research is presented in Table 3. The table demonstrates that the photothermal conversion efficiency of the phase change nanocapsules prepared in this study has ...
Photo-thermal conversion and energy storage ...
Furthermore, the energy storage efficiency of S5 is more than twice as high as S1 due to the fact that the addition of Fe 3 O 4 causes the material to absorb solar energy at an exponential rate. As a result, the photothermal conversion efficiency and heat storage efficiency of S2 both significantly increase.
Recent progress on photothermal nanomaterials: Design, …
The photothermal conversion efficiency and applications are fundamentally contingent upon the characteristics and performance of the materials employed. Consequently, deploying high-caliber materials is essential for optimizing energy capture and utilization. ... Photothermal energy storage materials [29] PDI/rGO film: Visible, 0.0488 W cm-2: ...
Metal-polyphenol based phase change microcapsules for photothermal …
The photothermal conversion and storage efficiency ηp of MPN@PA with shell core feeding ratio of 1.0:1.5, 1.0:1.2 and 1.0:1.0 are as high as 71.47%, 72.45% and 73.31%, respectively. It can be seen that the photothermal conversion ability of MPN@PA increases with the increase of MPN content.
Journal of Energy Storage
Titanium dioxide (TiO 2) is a semiconductor material with the properties of thermal energy conversion [22].The morphology of TiO 2 has a tremendous influence on its optical, electronic, and catalytic properties [23].Adjusting the synthesis route and method to control the crystal structure and microstructure of TiO 2 makes its widespread application in …
Carbon-intercalated halloysite-based aerogel efficiently …
The solar to thermal energy conversion and storage efficiency (η) can be calculated from the ratio of the thermal energy stored and the light radiation energy received during the phase change period according to following equation: η = m × Δ H m P × S × t 1-t 2 × 100 where m and S is the mass and the surface area of sample, ΔH m is the melting enthalpy, …
Carbon materials for enhanced photothermal conversion: …
Among common photothermal materials, metals having localized surface plasmon resonance (LSPR) effects, such as Au and Ag nanocrystals, 5, 6 perform high photothermal conversion with high efficiency, but their costs are also high, making them unsuitable for large-scale usage. Semiconductors with narrow bandgap have good …
Flexible MoS2/CNF/PEG phase change film with superior photothermal …
It exhibits excellent energy conversion and storage capabilities and is an ideal photothermal conversion material. Therefore, the ingenious combination of CNF, MoS 2 and PEG to prepare composite phase change materials will stimulate the synergistic effect between materials and is expected to achieve efficient utilization of solar energy.
Highly flexible GO–polyurethane solid–solid phase …
Highly flexible GO–polyurethane solid–solid phase change composite materials for efficient photothermal conversion and thermal energy storage ... we add graphene oxide to the system to enhance its potential for efficient conversion, …