Optimization of supercooling, thermal conductivity, photothermal ...

The photothermal conversion efficiency of the phase change hydrogel can reach 89.7% due to high light absorption performance of graphene oxide. Hydrogels with phase change properties have an energy storage density of 179.2 J/g.

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Design and application of polyurethane-polydopamine/Ag double …

Here, we characterize the energy storage and phase change performance of phase change microcapsules by their encapsulation efficiency E en, ... Biodegradable wood plastic composites with phase change microcapsules of honeycomb-BN-layer for photothermal energy conversion and storage. Chem. Eng. J., 448 (2022), 10.1016/j.cej.2022.137218.

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Visible Light Locking in Mineral-Based Composite Phase Change …

Fully stimulating the capacity of light-driven phase change materials (PCMs) for efficient capture, conversion, and storage solar energy requires an ingenious combination of PCMs, supporting structural materials, and photothermal materials, therefore motivating the synergistic effects between the components. Herein, this work thoroughly explores the …

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An ultrastrong wood-based phase change material for efficient ...

Phase change material is an energy storage substance that can store and release thermal energy via reversible crystalline transformation [8, 9]. ... form-stable wood-based PCM for efficient photothermal conversion and thermal energy conservation (Fig. 1 b). DW, as an anisotropic matrix, was obtained after delignification. ...

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Metal-polyphenol based phase change microcapsules for photothermal ...

Compared with PA, MPN@PA has good light absorption capacity and photothermal conversion and heat storage performance. With the increase of the shell-core ratio, the photothermal conversion and heat storage performance of MPN@PA are improved, and the photothermal conversion and heat storage efficiency of MPN@ PA (1.0:1.5) is up to 71.47%.

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Composite phase-change materials for photo-thermal conversion …

Solar energy is a clean and inexhaustible source of energy, among other advantages. Conversion and storage of the daily solar energy received by the earth can effectively address the energy crisis, environmental pollution and other challenges [4], [5], [6], [7].The conversion and use of energy are subject to spatial and temporal mismatches [8], [9], such as …

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Carbon‐Based Composite Phase Change Materials for Thermal Energy ...

Her research interests mainly focus on the synthesis and applications of flexible phase change materials for thermal energy storage and conversion. Ge Wang received her Ph.D. in Chemistry from the Michigan Technological University, United States, in 2002. Currently she is a professor and Ph.D. supervisor in the School of Material Science and ...

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Flexible textiles with polypyrrole deposited phase change microcapsules ...

The design of flexible phase change textiles with photothermal conversion/storage performance provides a new direction for their potential applications in advanced solar energy storage. Herein, photothermal phase change microcapsules (microPCMs) were facilely prepared via surface modification of microPCMs with photothermal converter polypyrrole ...

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Weavable coaxial phase change fibers concentrating thermal energy ...

Herein, smart thermoregulatory textiles concentrating the mode of thermal energy storage, photothermal conversion and thermochromic responsiveness were fabricated in this work. Core-sheath phase change fibers (PCFs) were prepared with polyurethane (PU) as the sheath material and octadecane (OD) as the core materials by coaxial wet spinning.

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Photothermal Phase Change Energy Storage Materials: A

To meet the demands of the global energy transition, photothermal phase change energy storage materials have emerged as an innovative solution. These materials, utilizing various photothermal conversion carriers, can passively store energy and respond to changes in light exposure, thereby enhancing the efficiency of energy systems.

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Synergistic enhancement of photothermal energy storage …

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 ...

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A novel phase change materials used for direct photothermal conversion ...

Photothermal materials can convert the received solar irradiation into thermal energy due to the inherent photothermal conversion characteristic [7].However, it is worth noticing that the solar irradiation will be fluctuant because of the influence of the climate change and seasonal variation, and this instability will also bring the defect of unstable output of thermal …

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Sunlight-Triggered Phase Change Energy Storage Composite …

In order to maintain thermal comfort in the human body, photothermal conversion and energy storage microcapsules were designed, developed, and applied in a light-assisted thermoregulatory system. The octyl stearate as a phase change material (PCM) was encapsulated using a polytrimethylolpropane triacrylate (PTMPTA)/polyaniline (PANI) …

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A shape-stabilized phase change composite from biomass cork …

The prepared composites with excellent shape stability present favorable thermal energy storage in photothermal conversion and thermal modulation technologies. Li et al. [7] synthesized a highly innovative conductive and photothermal phase change composite (PCC) by vacuum impregnation using a modified carbon black as a substrate.

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Phase Change Energy Storage Material with Photocuring, Photothermal ...

Compared with the thermal curing process, the photocuring process has advantages such as high efficiency and less energy consumption. 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 required by the …

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Polydopamine/copper nanoparticles synergistically modified …

A composite photothermal material was prepared by in-situ growth of Cu on CF surface under the adhesion of Polydopamine. • Thermal conductivity of CF/Cu/OC80 composite photothermal PCM is about 12 times of pure OC with 0.26 W m −1 K −1.. The maximum OC impregnation rate is 95 % and the highest phase change enthalpy is 270.8 J/g −1.. CF/Cu/OC80 has a high …

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(PDF) Photothermal Phase Change Energy Storage Materials: A ...

These materials, utilizing various photothermal conversion carriers, can passively store energy and respond to changes in light exposure, thereby enhancing the …

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High-performance macro-encapsulated composite for photothermal ...

In this work, Na 2 S 2 O 3 ·5H 2 O-CH 3 COONa·3H 2 O eutectic hydrated PCM was chosen as energy storage-release medium, with high enthalpy, suppressive supercooling degree and suitable phase transition temperature [35].Then, the foamy Cu was in situ grown into CuS-Cu as dual functional carrier which had good heat transfer and photothermal conversion …

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Multifunctional polyacrylamide/hydrated salt/MXene phase change ...

Herein, phase change hydrogels containing hydrated salt (sodium sulfate decahydrate, SSD, Na 2 SO 4 ·10H 2 O), polyacrylamide (PAM) hydrogel and MXene nanosheets were synthesized via one-step photoinitiated polymerization. The SSD is a common hydrated salt with a moderate melting temperature of ∼35 °C and a high phase change enthalpy of ∼280 …

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Superhydrophobic multi-shell hollow microsphere confined phase change ...

Solar photothermal conversion and energy storage systems can effectively solve the imbalance between the supply and demand of solar energy utilization in space and time. ... Phase change thermal energy storage enabled by an in situ formed porous TiO 2. Small, 19 (5) (2023), p. 2204998. View in Scopus Google Scholar [46]

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Phase Change Energy Storage Material with …

The CCNT layer provided excellent photothermal conversion and self-cleaning properties. The experimental results show that the latent heat of the PCM can reach 124.2 J/g, the water contact angle is 144°, the …

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Preparation of photothermal conversion and energy storage …

However, phase change energy storage driven by temperature fluctuation is difficult to realize in some application scenarios such as winter or alpine regions. Here, novel photothermal conversion and energy storage composite was designed and fabricated to solve the problem. ... For the purpose of photothermal conversion and storage energy, the ...

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Photothermal Phase Change Energy Storage Materials: A

To meet the demands of the global energy transition, photothermal phase change energy storage materials have emerged as an innovative solution. These materials, utilizing various …

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Polypyrrole‐boosted photothermal energy storage in …

Emerging phase change material (PCM)-based photothermal conversion and storage technology is an effective and promising solution due to large thermal energy storage density, high conversion efficiency, good …

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Composite phase change materials with thermal-flexible and …

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 …

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Weavable coaxial phase change fibers concentrating thermal energy ...

DOI: 10.1016/j.cej.2024.149281 Corpus ID: 267449381; Weavable coaxial phase change fibers concentrating thermal energy storage, photothermal conversion and thermochromic responsiveness toward smart thermoregulatory textiles

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Composite Phase-Change Materials for Photo-Thermal …

Nanosilver modified navel orange peel foam/polyethylene glycol composite phase change materials with improved thermal conductivity and photo-thermal conversion efficiency. …

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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 ...

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Cellulose nanofiber/melanin hybrid aerogel supported phase change ...

For phase change energy storage materials, their energy storage performance will generally change with the increase of use times, and the change of performance determines how to apply the materials. ... After the calculation, the photothermal conversion and storage efficiency of CPCM, CMPCM-1, CMPCM-2, CMPCM-3, and CMPCM-4 are 47.2%, 61.4%, 70. ...

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Phase change nanocapsules incorporated with nanodiamonds for …

Our study presents a facile strategy for simultaneously enhancing the photothermal energy conversion and storage performance of phase change capsules, which …

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Carbon-intercalated halloysite-based aerogel efficiently …

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]. ... has high latent heat of phase change and high photothermal conversion efficiency ...

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Sunlight-Triggered Phase Change Energy Storage …

In order to maintain thermal comfort in the human body, photothermal conversion and energy storage microcapsules were designed, developed, and applied in a light-assisted thermoregulatory system. The octyl stearate as a phase change …

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MXene-based phase change materials for multi-source driven energy ...

Phase change materials (PCMs), both organic and inorganic, store and release energy through a phase change process, which is the green carrier for maintaining or prolonging heat [[5], [6], [7]].A large number of studies have proved that PCMs is conducive to improving the utilization rate of solar energy as solving the shortcomings of solar energy time and space …

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A shape-stabilized phase change composite from biomass cork …

The prepared composites with excellent shape stability present favorable thermal energy storage in photothermal conversion and thermal modulation technologies. Li et al. [7] synthesized a highly innovative conductive and photothermal phase change composite (PCC) by vacuum impregnation using a modified carbon black as a substrate. The as ...

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Fe3O4/carbon-decorated graphene boosts photothermal conversion …

Pristine organic phase change materials (PCMs) are difficult to complete photothermal conversion and storage. To upgrade their photothermal conversion and storage capacity, we developed Fe-MOF (metal-organic framework) derived Fe 3 O 4 /C-decorated graphene (GP) based composite PCMs toward solar energy harvesting. Graphene is an …

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Photothermal properties and photothermal conversion performance …

Photothermal properties and photothermal conversion performance of nano-enhanced paraffin as a phase change thermal energy storage material Author links open overlay panel Ruitong Yang a, Dong Li a e, Samanta López Salazar a c, Zhonghao Rao b, Müslüm Arıcı d a, Wei Wei a

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Form-stable phase change materials based on graphene-doped …

Form-stable phase change materials based on graphene-doped PVA aerogel achieving effective solar energy photothermal conversion and storage. Author links open overlay panel Lixiang Luo a, Wenxing Luo a, Wenjing Chen b, Xiaowu Hu ... PEG/PVA-GO and PEG/PVA-rGO started to phase change for energy storage at around 150 s. At the end of light ...

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