photothermal energy storage conversion efficiency

Sustainable Porous Scaffolds with Retained Lignin as An Effective Light‐absorbing Material for Efficient Photothermal Energy Conversion …

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.

A study on novel dual-functional photothermal material for high-efficient solar energy harvesting and storage …

Direct-photothermal energy conversion and storage experiment: The 300 W Xe-lamp was used as the solar simulator in the direct-photothermal energy conversion and storage experiment with the intensity adjusted from 0.5 to 2 kW/m 2.

Polypyrrole-coated conjugated microporous polymers/expanded graphene carbon aerogels based phase change materials composites for efficient energy ...

In this study, we integrated organic phase change materials, decanoic acid (DA) and palmitic acid (PA), into bio-based samples made from sodium alginate (SA) and flax fiber (FF). We also synthesized conductive polypyrrole (PPy) coating through in situ polymerization to create two thermal energy storage and conversion systems with …

Photothermal conversion-enhanced thermoelectric generators …

An effective strategy to employ the synthetic Cu 1.5 Mn 1.5 O 4 spinel-type PTC materials for constructing the STEG device series integrated supercapacitor to achieve the conversion and storage of solar-thermal energy to electrical energy. Download : Download high-res image (223KB) ...

Photothermal Nanomaterials: A Powerful Light-to-Heat …

The photothermal conversion efficiency as high as 62.3% has been achieved by introducing a porphyrin-pyrene pendant as an extra light-harvesting unit. The same research group has further …

Composite phase change materials with thermal-flexible and efficient photothermal conversion …

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 improving building heat storage capacity [ 10 ], reducing building …

Temperature‐Responsive Thermochromic Phase Change Materials with Tunable Photothermal Conversion Efficiency Toward Solar Energy Storage …

There are many reports in the literatures on the use of phase change materials (PCMs) with photothermal conversion to store and harness solar energy. However, few works have reported intelligent PCMs with thermochromic capabilities that can controllably adjust their photothermal conversion efficiency to change the heating rate …

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 …

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

Inspired by the distinctive organization of muscle, we prepared a wood-based PCM with high heat storage capacity, efficient photothermal conversion, and …

Phase change nanocapsules incorporated with nanodiamonds for efficient photothermal energy conversion and storage …

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

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 …

Carbonized conjugated microporous polymers hollow spheres incorporated with fatty alcohols for ultra-highly efficient energy storage and conversion

Cellulose nanofibril/polypyrrole hybrid aerogel supported form-stable phase change composites with superior energy storage density and improved photothermal conversion efficiency Cellulose, 27 ( 16 ) ( 2020 ), pp. 9547 - 9558, …

Elevating the Photothermal Conversion Efficiency of Phase-Change Materials Simultaneously toward Solar Energy Storage…

To alleviate the predicament of resource shortage and environmental pollution, efficiently using abundant solar energy is a great challenge. Herein, we prepared unique photothermal conversion phase-change materials, namely, CNT@PCMs, by introducing carbon nanotubes (CNTs) used as photothermal conversion materials into the …

Advances in flexible hydrogels for light-thermal-electricity energy conversion and 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 highly efficient photothermal conversion and storage …

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 …

Enhancing solar photothermal conversion and energy storage with ...

The Ti 3 C 2 MXene-doped microcapsules with excellent heat storage and solar-to-heat conversion capabilities offer great potential for high-efficiency solar …

Weavable coaxial phase change fibers concentrating thermal energy storage, photothermal conversion …

The addition of MXene in sheath layer ensured the fabrics with high saturated temperature (65.35 C) and excellent photothermal conversion efficiency (90.01 %), which is significantly higher than the fabrics without MXene addition (saturated temperature 47.30 C

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 …

Synthesis of hybrid dual-MOF encapsulated phase-changing material for improved broadband light absorption and photothermal conversion …

To improve the overall solar-thermal energy harvesting efficiency of encapsulated phase change materials (EPCM), a novel hierarchic SiO 2 /PCN-224/PB (ES-PCN-PB) composite shell was developed and synthesized through in-situ growth of PCN-224 decorated with PB particles onto SiO 2 encapsulated PCM. encapsulated PCM.

Efficient Photothermal Energy Conversion Triggered by near …

A Ni-dithiolene ligand, {Ni (pedt) 2 } − (pedt = 1- (pyridine-4-yl)ethylene-1,2-dithiolate), was used to prepare a novel interpenetrated redox-active Metal–Organic …

Intrinsically lighting absorptive PANI/MXene aerogel encapsulated PEG to construct PCMs with efficient photothermal energy storage …

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 …

MOF-derived hierarchical carbon/ZnO hybrid synergistically boosts photothermal conversion and storage …

The PCM-based photothermal conversion and storage system is composed of photothermal conversion unit and latent heat storage unit. In the composite system, solar energy is captured directly by PCMs and converted into thermal energy, and then the generated thermal energy is stored by PCMs in the form of latent heat through …

Fe3O4/carbon-decorated graphene boosts photothermal conversion and storage …

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. ...

Flexible textiles with polypyrrole deposited phase change microcapsules for efficient photothermal energy conversion and storage …

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 …

Polyimide/phosphorene hybrid aerogel-based composite phase change materials for high-efficient solar energy capture and photothermal conversion ...

The photothermal energy conversion and storage performance of aerogel/PEG composites was evaluated using a custom-designed experimental setup equipped with a Xenon arc lamp (500 W) as simulated sunlight. Fig. 3 a shows a scheme for the experimental ...

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 thermochemical stability, and small carbon footprint.

A Review on Photothermal Conversion of Solar Energy with …

2 Basic Mechanisms of Solar-Driven Photothermal Conversions Conversion of solar energy into other forms of energy is urgently needed to address the global energy issues. [63, 64] It can be realized by different conversion processes, such as PV effect, [4, 65-67] photochemical transformation, [68-70] photoelectrochemical …

ZIF-67@MXene structure synergistically improve heat storage and photothermal conversion …

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 …

Ternary mixture thermochromic microcapsules for visible light absorption and photothermal conversion energy storage …

Robust, double-layered phase-changing microcapsules with superior solar-thermal conversion capability and extremely high energy storage density for efficient solar energy storage[J] Renew. Energy., 180 ( 2021 ), pp. 725 - 733

Fatty acid eutectics embedded in guar gum/graphene oxide/boron nitride carbon aerogels for highly efficient thermal energy storage …

The photothermal conversion experiment was conducted at a constant light intensity of 120 photothermal conversion at a constant light intensity of 120 mW/cm 2. The temperature-time curves of CA-BN-1, PCM-BN-1 and SA-CA in the photothermal conversion process are shown in Fig. 7 (d), showing that the temperatures of the three …

Functionally constructed mineral microspheres for efficient photothermal conversion and thermal energy storage …

The prepared P-AEG-C exhibited superior mechanical properties and thermal energy storage properties, with a compressive strength of 14.8 MPa and light–thermal conversion efficiency of 92%. Therefore, the synthesized P-AEG-C has potential in light–thermal conversion applications and energy-saving buildings.

Emerging urchin-like core-shell mineral microspheres with efficient photothermal conversion and solar energy storage …

In summary, we reported a novel composite microsphere with a core-shell structure for encapsulated paraffin, synergistically enhancing efficient photothermal conversion and thermal energy storage. An urchin-like TiO 2 was coated on the core prepared by graphite and minerals to enhance the thermal conductivity, light absorption, …

Preparation and properties of erythritol/exfoliated graphite …

Then the combination of photothermal conversion and phase change latent heat storage was realized by confining erythritol (ET) in the composite aerogels via vacuum infiltration. The obtained FSPCMs had a high ET loading of 90 wt% with high melting enthalpies of ∼280 J/g, and exhibited high photothermal conversion efficiency …

A general methodology to measure the light-to-heat conversion

As a fundamental property of materials, accurate measurement of light-to-heat conversion efficiency (LHCE) is of vital importance in developing advanced …

A novel phase change materials used for direct photothermal conversion and efficient thermal storage …

The intrinsic photothermal conversion efficiency is up to 60.1% at 1000W /m 2. Abstract The inherent fluctuation of solar irradiation will seriously affect the stability of energy transfer of traditional photothermal conversion materials. Photothermal conversion phase ...

A novel phase change materials used for direct photothermal conversion and efficient thermal storage …

Meanwhile, the corresponding intrinsic photothermal conversion efficiency and effective thermal storage efficiency are up to 60.1% and 97.3%, respectively. Introduction Nowadays, the energy consumption pattern of high-carbon is no longer suitable for global energy markets, and the mode of clean and low-carbon has …

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