Pristine organic phase change materials (PCMs) suffer from liquid leakage and weak solar absorption in solar energy utilization. To address these deficiencies, we prepared polypyrrole (PPy)-coated expanded graphite (EG)-based composite PCMs for photothermal conversion and storage through chemical polymerization and physical
Read MoreEmerging phase change material (PCM)-based photothermal conversion and storage technology is an effective and promising solution due to large thermal
Read MoreYahua Liu. Cellulose nanocrystals (CNCs) self-assembled into a chiral nematic structure film is an advanced platform for the fabrication of fascinating sensing, photonic and chiral nematic
Read MoreThe samples were prepared as shown in Fig. 1 a organic microspheres with multilayered hollow layers were prepared by hydrothermal and annealing calcination using glucose, MgCO 3 ·3H 2 O, and H 2 PtCl 6 ·6H 2 O as the raw material (More information in Fig. S2). The SEM image of C@MgCO 3 ·3H 2 O/Pt is shown in Fig. 1 b. The diameter of the
Read MoreIPPCMs have the highest latent heat of 131.7 J/g, the highest efficient photothermal conversion and energy storage efficiency of 88.7 %, the high shape stability even at 140 °C, the high thermal reliability and thermal stability before and after accelerating thermal cycling, accelerated solar aging test and reprocessing.
Read MoreLow 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
Read MoreTo validate the feasibility of solar-driven STEG power generation and explore the synergistic effect of coupling the STEG device with the SC device for electrical energy storage, we
Read More[18, 109] During the photothermal catalysis process, solar energy can be used to destroy the chemical bonds to degrade organic pollutants. At the same time, it also can generate new chemical bonds for energy storage in hydrogen (H 2), carbon oxide (CO), methane (CH 4), and so on. Therefore, photothermal catalysis can be an
Read MoreTo address the above issues, a potentially smart strategy is found by developing macrostructured photothermal storage superhydrophobic (MPSS) surfaces, which integrate the functions of macrostructured superhydrophobic materials, photothermal materials, and phase change materials (PCMs), and are expected to achieve all-day anti
Read MoreTo this end, photothermal conversion and energy storage using phase change materials have become increasingly popular approaches for producing, storing, and utilizing thermal energy in industrial
Read MoreThis implies that photothermal catalysis can save this proportion of energy. To provide more detailed insights, photothermal catalysis can conserve 3.459 × 10 11 kJ of electrical energy for every
Read MoreAffiliations 1 School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China.; 2 Research Center of Solar Power and Refrigeration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.; 3 Department of Energy and Power Engineering, Tsinghua University,
Read MoreIn order to solve the problems of easy leakage and low thermal conductivity of paraffin in molten state. In this study, modified phase-change microcapsules with paraffin as the core material, melamine-formaldehyde resin as the wall material, flake graphite (FG), multilayer graphene (GNP) and expanded graphite (EG) as heat
Read More1. Introduction. Currently, fossil fuel resources are being gradually depleted, and the world is facing a severe energy crisis. Efforts are being made to promote energy transition, enhance energy utilization efficiency and replace non-renewable energy with sustainable alternatives [1, 2].Solar energy has gained widespread attention thanks to its continuous energy
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Read MoreNovel electrothermal conversion PCMs can effectively tackle these issues by converting surplus electrical energy into thermal energy for storage and then
Read MoreAbstract Photothermal conversion material that generates thermal energy from sunlight is expected to be a promising technology for harvesting and conversion of clean solar energy. However, its photothermal conversion will be affected due to the surface contamination by dirt in outdoor applications, which greatly reduces the solar
Read MoreHerein, a photothermal energy-storage capsule (PESC) by leveraging both the solar-to-thermal conversion and energy-storage capability is proposed for efficient anti-/deicing. Under illumination, the surface temperature can rise to 55 °C, which endows fast droplet evaporation to prevent the subsequent bulk freezing, and the accumulated ice and
Read MoreOrganic PCMs are referred as thermal energy-storage materials for solar photothermal energy storage and release accordingly. However, the low thermal conductance (0.10–0.35 W m −1 K −1 ) and solid-to-liquid phase-transition nature of the organic PCMs usually result in a slow heat transfer and a leakage problem, limiting their
Read MoreA novel thermal energy storage (TES) composites system consisting of the microPCMs based on n-octadecane nucleus and SiO 2 /honeycomb-structure BN layer-by-layer shell as energy storage materials, and wood powder/Poly (butyleneadipate-co-terephthalate) (PBAT) as the matrix, was created with the goal of improving the heat
Read MoreThe high-energy photons from the solar spectrum can be absorbed by the upper MOST layer, and photochemically convert norbornadiene to quadricyclane,
Read MoreThe thermally induced or photothermal phase change mechanism mainly involved a reversible melting and freezing process (Fig. 1 c), the crystalline PEG segments started melting above the melting temperature (T m) accompanied by the storage of thermal energy, while the amorphous PEG started crystallizing below the freezing
Read MoreIntroduction. Recent years, the exploration and harnessing of solar energy have garnered significant attention. Among the wide array of solar-energy utilization methods (including photovoltaic, photochemical, and photothermal approaches), solar-thermal conversion is particularly promising as it involves a direct conversion process
Read MoreSolar thermal energy converts solar light into heat and has been extensively applied for solar desalination and power generation. In the present work, to address the failure problem of energy storage devices in a cold environment, solar thermal energy was used to
Read MoreAll-weather, high-efficiency solar photothermal anti-icing/deicing systems are of great importance for solving the problem of ice accumulation on outdoor equipment surfaces. In this study, a photothermal phase change material with a micro-porous structure (MP@PPCM) is prepared via salt-template and melt-blending methods.
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Read MoreThermal storage using PCMs has a wide range of applications, ranging from small-scale electronic devices (∼1 mm), to medium-scale building energy thermal storage (∼1 m), to large-scale concentrated solar power generation (∼100 m).
Read MoreHerein, a photothermal energy‐storage capsule (PESC) by leveraging both the solar‐to‐thermal conversion and energy‐storage capability is proposed for efficient anti‐/deicing. Under
Read MoreEPCMs have gained significant attention among energy storage materials because of their ability to store and release a large amount of heat during phase change, and their ease of integration into existing systems. EPCMs have a wide range of applications, including thermal energy storage [118], thermal management [119], and
Read MorePhase change materials (PCMs) are a crucial focus of research in the field of photothermal energy storage. However, due to their inherently low photothermal conversion efficiency, traditional PCMs absorb solar energy scarcely. The photothermal conversion ability of PCMs are usually enhanced by incorporating photothermal conversion nanoparticles.
Read MoreParticularly, 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,
Read MoreAs the photovoltaic (PV) industry continues to evolve, advancements in photothermal energy storage epc equipment manufacturing have become instrumental in optimizing the utilization of renewable energy sources. From innovative battery technologies to smart energy management systems, these solutions are transforming the way we store and distribute solar-generated electricity.
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