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photothermal energy storage efficiency
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. The collaborative integration strategy of different functional guest molecules provides an innovative platform for the development
Microcrystalline graphite-coupled carbon matrix composites with
It has good application prospects in thermal energy storage technology [6, 8]. Photothermal conversion is a method that strongly relies on photon capture, thermal conversion, and solar energy storage [9], which is the most direct and effective way of solar energy utilization. Due to the instability and intermittency of solar energy, a large
Weavable coaxial phase change fibers concentrating thermal energy
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
Solar Energy Materials and Solar Cells
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
Lamellar-structured phase change composites based on
The low thermal conductance of PCMs delays their heat transfer and thermal response, resulting in a decrease in solar photothermal energy-storage efficiency. Compared to organic PCMs, inorganic salt hydrates have a relatively high thermal conductivity of around 0.4–0.7 W m −1 K −1, a high energy-storage density,
Sustainable Porous Scaffolds with Retained Lignin as An Effective
As a result, the photothermal energy storage efficiency of POW-B/PEG and POW-S/PEG are ≈ 86.7% and 79.8% (Figure 4c), respectively. The POW/PEG composites also show great potential in the thermal regulation of buildings. Through the process of photothermal energy storage and release, the POW/PEG could keep the
High-directional thermally conductive stearic acid/expanded
Moreover, we have introduced an advanced high-photothermal conversion layer that synergizes with our directionally conductive phase change composite. This strategic combination culminates in the creation of a highly efficient integrated photothermal storage device, markedly boosting the overall efficiency of
Polypyrrole-coated expanded graphite-based phase change
The integration of PCMs and photothermal conversion materials can efficiently convert solar energy into thermal energy and store it in the form of latent heat. This integrated technology can achieve the goal of simultaneous solar energy utilization and efficient energy storage [1,[15], [16], [17], [18], [19]].
Phase change nanocapsules incorporated with nanodiamonds for efficient
Phase change nanocapsules exhibit significant potential in harnessing photothermal energy to address the ever-growing energy demand; however, their application is restricted by limited solar absorption capacity and low thermal conductivity this study, nanodiamonds (NDs) were firstly incorporated with phase change
Theoretical and experimental progress in photothermal catalysis
In the current energy crisis, converting solar-thermal energy into chemical forms has become paramount. Within the broad spectrum of light-mediated catalysis, which includes heat and photocatalysis (relevant to processes like organic transformations, water splitting, and CO2 reduction), photothermal catalysis is a critical avenue for transforming solar
Synergistic enhancement of photothermal energy storage
1. 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
Polypyrroleâ boosted photothermal energy storage in
Impor-tantly, the photothermal conversion and storage efficiency of ODA@MOF/ PPy ‐6% is up to 88.3%. Additionally, our developed MOF‐based photothermal composite PCMs also exhibit long‐standing antileakage stability, energy storage stability, and photothermal conversion stability. The proposed coating strategy and in‐depth understanding
Journal of Energy Storage
Current studies show that the heat storage capacity and photothermal conversion efficiency of PCMs are important indicators for efficient storage and utilization of solar energy [15], [16], [17]. The metal organic framework (MOF) is porous crystal hybrid material formed by the connection of metal centers (clusters) and organic ligands
Photothermal materials with energy-storage properties provide an energy
All-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.
Polyimide/phosphorene hybrid aerogel-based composite phase
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] .
Phase change nanocapsules incorporated with nanodiamonds for efficient
The photothermal conversion and storage mechanism of the ND/SiO 2 NEPCM is illustrated in Fig. 9, primarily attributed to the thermal vibrations of molecules combined with the optical confinement effect of the ND/SiO 2 hybrid shells, as well as the phase change thermal energy storage capacity provided by n-Octadecane. In brief,
Emerging urchin-like core-shell mineral microspheres with efficient
Enormous challenges still seriously restrict the application of phase change materials (PCMs) in thermal energy storage and heat management systems, such as their leakage, low thermal conductivity, and low photothermal conversion efficiency.We reported an effective strategy for the morphology-controlled synthesis of the composite
Sustainable Porous Scaffolds with Retained Lignin as An Effective
The π–π stacking ability of lignin molecules endows the retained lignin with efficient photonic energy harvesting characteristics for fast thermal conductivity to reach
Enhancing the heat transfer and photothermal conversion
Solar energy is intermittent, resulting in a discrepancy between the solar energy supply and building energy demand. Salt hydrate phase change material (PCM) is a promising material for use as an energy storage medium, but it suffers from a high supercooling degree, low thermal conductivity, and insufficient photothermal conversion
Fe3O4/carbon-decorated graphene boosts photothermal
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.
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
Fatty acid eutectics embedded in guar gum/graphene
Fatty acid eutectics embedded in guar gum/graphene oxide/boron nitride carbon aerogels for highly efficient thermal energy storage and improved photothermal conversion efficiency Author links open overlay panel Cong Feng a, Qingfeng Zhang a, Nayan Wang a, Huanzhi Zhang a b, Fen Xu a b, Lixian Sun a b, Yongpeng Xia a b,
Photothermal Energy‐Storage Capsule with Sustainable
Herein, 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
Magnetically accelerated thermal energy storage within Fe
During the photothermal conversion process, MXene can capture photons and convert solar energy into heat energy efficiently, and the in situ anchored Fe 3 O 4
Synergistic enhancement of photothermal energy storage
1 · Phase 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
Synergistic enhancement of photothermal energy storage capacity
Phase change materials (PCMs) are a crucial focus of research in the field of photothermal energy storage. However, due to their inherently low photothermal conversion
Renewable Energy
1. Introduction. The growing concerns about huge energy shortfall and environmental pollution caused by the excessive consumption of finite and non-renewable fossil fuels have driven people to hunt for clean and regenerable energy sources, and highly efficient energy conversion and storage techniques for sustainable development of
Intrinsically lighting absorptive PANI/MXene aerogel
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
Functionally constructed mineral microspheres for efficient
PCMs have experienced widespread application in different fields, such as in building envelopes, industrial thermal energy storage, and battery thermal management [13]. To ensure the thermal comfort of the occupants with a minimum system energy demand, a highly energy-efficient building must have an energy-efficient enclosure
Ternary mixture thermochromic microcapsules for visible light
The utilization of these fields directly or indirectly involves the photothermal conversion process. However, the dispersion and instability of solar energy affect the photothermal conversion efficiency in the application process. In addition, the high conversion and storage costs limit its application in many fields [8]. Therefore, it is of
A study on novel dual-functional photothermal material for high
Introduction. 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
High-directional thermally conductive stearic acid/expanded
This strategic combination culminates in the creation of a highly efficient integrated photothermal storage device, markedly boosting the overall efficiency of
Photothermal Nanomaterials: A Powerful Light-to-Heat
The investigation of photothermal materials with broadband absorption is beneficial for the utilization of renewable solar energy, while the engineering of materials with efficient heat generation
Intrinsically lighting absorptive PANI/MXene aerogel encapsulated
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
Temperature‐Responsive Thermochromic Phase Change Materials
The designed TC-PCMs have a high photothermal conversion efficiency by using different styles of reversible thermochromic microcapsules, which can
Journal of Energy Storage
2. Light-thermal-electricity energy conversion and storage. This section systematically summarizes the energy conversion and storage mechanisms of thermoelectric, photovoltaic and photothermal energy systems, compares in detail the advantages and disadvantages of hydrogel conversion materials and traditional
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. oxide modified nanoencapsulated phase change materials fabricated by RAFT miniemulsion polymerization for thermal energy storage and
Photothermal materials with energy-storage properties provide an
All-weather, high-efficiency solar photothermal anti-icing/deicing systems are of great importance for solving the problem of ice accumulation on outdoor
Composite phase change materials with thermal-flexible and efficient
1. Introduction. With the depletion of fossil energy and the increasingly serious environmental pollution [1], the need to develop renewable energy is becoming increasingly urgent [2].As a kind of clean energy, solar energy is mainly applied in photoelectric and photothermal forms [3].Among them, light and heat have the
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
