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
Polypyrrole-coated expanded graphite-based phase change
Comparatively, photothermal utilization is becoming more attractive due to its simple and straightforward principle. However, harnessing solar energy is not only limited by time and space but also by its discontinuity and instability. The emerging integrated technology of photothermal conversion and thermal energy storage is a
Self-operation and low-carbon scheduling optimization of solar
Photo thermal power generation, as a renewable energy technology, has broad development prospects. However, the operation and scheduling of photo thermal power plants rarely consider their internal structure and energy flow characteristics. Therefore, this study explains the structure of a solar thermal power plant with a thermal
Dynamic absorption of bulk phase-change materials for photothermal
A magnetically enhanced photon-transport-based charging approach is reported, which enables the dynamic tuning of the distribution of optical absorbers dispersed within phase-change materials, to simultaneously achieve fast charging rates, large phase- change enthalpy, and high solar-thermal energy conversion efficiency.
Research and analysis of energy consumption and energy saving
The solar photovoltaic photothermal system studied maximizes the use of solar energy resources with the help of photovoltaic and photothermal equipment under
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
A review on micro-encapsulated phase change materials
Solar energy absorption and storage of integrated ceramic materials is both the absorption of sunlight and storage of sunlight into thermal energy functional materials. In this paper, the effect of Fe 2 O 3 on the solar absorptivity, thermal storage properties, sintering temperature, and physical properties of mullite-based thermal
A study on novel dual-functional photothermal material for high-efficient solar energy harvesting and storage
Strategic design enabled the seamless amalgamation of photothermal conversion and heat transportation during solar-energy storage, enhancing the solar
Advanced Anti-Icing Strategies and Technologies by
The mechanisms and advantages of conventional, macrostructured, and photothermal superhydrophobic surfaces are introduced in turn. Conventional superhydrophobic surfaces, as well as macrostructured ones, easily lose the icephobic property under extreme conditions, while photothermal superhydrophobic surfaces strongly rely on solar
Double-layered phase change materials featuring high photothermal
Organic solid-liquid phase change materials have attracted great attention in the field of photothermal conversion and energy storage due to their advantages such as high latent heat, low subcooling, stable chemical properties, and constant temperature during the phase change process.
Elevating the Photothermal Conversion Efficiency of Phase
To alleviate the predicament of resource shortage and environmental pollution, efficiently using abundant solar energy is a great challenge. Herein, we prepared unique
Photothermal materials: A key platform enabling highly efficient water
The as demonstrated solar steam generator possesses a few advantages: 1) the aerogel has a strong broadband light absorption (∼97%) across the UV–Vis–NIR regions (290–1400 nm) for light-to-heat energy conversion; 2) the spatially separated evaporation surface and bulk water leads to neglectable heat conduction loss; 3) the
Graphene-doped polymer microencapsulated n-Octadecane for heat storage
The phase-change latent heat energy and solar radiation energy of the [email protected] are 120.7 J and 177.8 J, and the photothermal conversion efficiency is 67.88 %, an increase of 184.02 % in comparison to the MEPCM. The photothermal conversion efficiencies of the microcapsule samples with GO nanosheets were also higher than
The reinforced photothermal effect of conjugated dye/graphene
Direct absorption/storage solar collectors (DASSC) using composite phase change materials (CPCM) have attracted great attention in the solar energy field for the advantages of less heat exchange processes and high heat storage density. However, the low thermal conductivity of the CPCM has greatly restricted the thermal performance
Photothermal Chemistry Based on Solar Energy: From
The high-energy photons from the solar spectrum can be absorbed by the upper MOST layer, and photochemically convert norbornadiene to quadricyclane, storing solar energy in the form of
Recent advances of plasmonic nanofluids in solar harvesting and energy
Compared with the base fluid, the photothermal conversion efficiency of HP-Au/oil nanofluid is improved by 240 %. TiO 2, due to its excellent photostability, is widely used in fields such as photocatalysis and energy storage. However, TiO 2 has a wide band gap and can only collect solar energy in the UV.
Photothermal Chemistry Based on Solar Energy: From
The high-energy photons from the solar spectrum can be absorbed by the upper MOST layer, and photochemically convert norbornadiene to quadricyclane, storing solar energy in the form of chemical energy at around 103 kJ mol −1. In the meantime, the low-energy photons, accounting for ≈88% in the solar spectrum, will be absorbed by the
Photothermal catalysis: From fundamentals to practical applications
Photothermal catalysis is an innovative approach that integrates photochemical and thermocatalytic processes to enable an efficient use of full-spectrum
High-directional thermally conductive stearic acid/expanded
PCMs offer notable advantages, including significant energy storage performance, excellent energy savings, and the ability to maintain nearly constant temperatures during phase transitions [4]. Particularly, photothermal energy storage systems that store excess solar energy generated during the day for nighttime utilization
Dual-mode harvest solar energy for photothermal Cu
Biotic-abiotic hybrid photocatalytic system is an innovative strategy to capture solar energy. Diversifying solar energy conversion products and balancing
Peanut shell-derived photothermal absorber for solar desalination
Ge et al. [ 17] developed an efficient photothermal absorber from waste ginkgo ( Ginkgo biloba) leaves (GLs) for solar desalination. GLs were thermally heated to 500 °C for 30 min in a nitrogen environment. Under 1 sun illumination, the evaporation rate of PAM-modified GLs reached 2.37 kg m −2 h −1.
Composite phase change materials with thermal-flexible and
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
Photothermal Chemistry Based on Solar Energy:
The high-energy photons from the solar spectrum can be absorbed by the upper MOST layer, and photochemically convert norbornadiene to quadricyclane, storing solar energy in the form of
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.
Photothermal storage and controllable release of a phase
Photochemical phase transition is an effective strategy to realize photothermal conversion and multi-source energy storage. Azobenzene molecule with photo-induced reverse solid-liquid transitions was synthesized through molecular design, achieving multi-source storage for both solar and environmental thermal energy.
A Review on Photothermal Conversion of Solar Energy
In this review, we comprehensively summarized the state-of-the-art photothermal applications for solar energy conversion, including photothermal water evaporation and desalination, photothermal
Solar-driven photothermal catalytic CO 2 conversion: a review
It is highly desirable to seek green and sustainable technologies, such as employing photothermal effects to drive energy catalysis processes to address the high energy demand and associated environmental impacts induced by the current methods. The photothermocatalysis process is an emerging research area with great potential in
A review of the photothermal-photovoltaic energy supply system
Solar thermal/electric energy supply system based on hydrogen energy storage. Solar thermal/electric energy supply system based on HES is a sustainable energy solution. The system has many advantages. First, it improves solar energy utilization efficiency by converting solar energy into electricity and storing it for use at
Theoretical and experimental progress in photothermal catalysis
Photothermal catalysis has emerged as a promising sustainable energy and environmental protection approach by utilizing solar energy to drive catalytic reactions. Several studies
Atomic reconstruction for realizing stable solar-driven
To investigate the solar-driven H 2 storage performance of MgH 2, solar energy serves as The advantages of solar-driven MgH 2 by natural solar energy. Mechanism of photothermal and
High Dimensional Model Representation Approach for
System Coupled with Photothermal Energy Storage. Processes 2023, 11, coupled with solar energy systems is a new biomass fossil energy, with the advantages of cleanliness and sustainability.
Photothermal-assisted scheme design and thermodynamic
The conventional photothermal-assisted scheme adopted by advanced adiabatic compressed air energy storage (AA-CAES) has equal stages of expanders and high-temperature reheaters, and is equipped with a regenerator to waste heat recovery, which is relatively complex and requires high solar heat supply and solar irradiance.
Photothermal catalysis: From fundamentals to practical applications
Photothermal catalysis is a technique sharing the same goal with photocatalysis to harvest solar energy for initiation of chemical processes, but completely differs from photocatalysis in reaction mechanism. In this process, when a catalyst absorbs photons, it converts solar energy into two essential components: EHC and LTE (Fig. 2)
Phase-changing hydrogels incorporated with copper sulfide
Organic phase change materials (PCMs) have great potential in solar energy storage and thermal management. Herein, a novel system of integrated photothermal-thermal storage function was designed and prepared based on sodium alginate (SA) hydrogel combined with photothermal materials (CuS-CNTs) and pure
A novel phase change materials used for direct photothermal
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
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