Phase Change Energy Storage Material with Photocuring, Photothermal Conversion, and Self-Cleaning Performance via a Two-Layer Structure. ACS Applied Materials & Interfaces 2022, 14 (51), 57299-57310.
The photothermal energy conversion and storage capacity was tested under simulated solar (CEAULIGHT, CEL-S500), and the temperature-time curves were measured by a digital data collector (R2100). An alternating current generator was used to provide an alternating magnetic field for magnetic-thermal conversion and storage, and …
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 ...
Based on the above discussions, the empty 3d orbital of Ti 4+ in TiO 2 and LTO lattices appears to be the root cause of poor electron and ion conductivity, limiting application in energy storage devices. For example, Li + charge storage in Ti-based oxides involves charge-transfer reactions occurring at the interface and bulk accompanied by electron …
Significant findings The as-prepared aerogel shows excellent elasticity, which can be compressed by 30% and recover to its original shape within a few seconds. In combination with abundant porosity (92.3%), low thermal conductivity (0.077 W m −1 K −1), super hydrophilic wettability and high light absorption (94%), the as-prepared aerogel …
While flexible supercapacitors with high capacitance and energy density is highly desired for outdoor wearable electronics, their application under low-temperature environments, like other energy storage devices, remains an urgent challenge. Solar thermal energy converts solar light into heat and has been extensively applied for solar …
Energy storage systems are an important part of all electronic products, and the need for batteries with more energy is always growing [177]. Owing to their intrinsic high-energy densities, extended cycle lives, and safety, lithium-ion batteries (LIBs) are the most widespread power sources for electronic devices and electric vehicles.
Molecular photoswitches can be used for solar thermal energy storage by photoisomerization into high-energy, meta-stable isomers; we present a molecular …
Metal–organic frameworks (MOFs) are attractive in many fields due to their unique advantages. However, the practical applications of single MOF materials are limited. In recent years, a large number of MOF-based composites have been investigated to overcome the defects of single MOF materials to broaden the avenues for the practical …
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 …
It is an intrinsic liquid PTM, preserving the fluidic nature as well as possessing considerable ability for photothermal conversion. In addition to understanding the mechanism of light absorption in the visible and even near infrared windows, two examples are presented to demonstrate the great potential of liquid PTMs in broad areas …
Particularly, 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, …
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 was …
The PAM/SSD/MXene hydrogels were fabricated via one-step photoinitiated polymerization from an acrylamide monomers/MXene aqueous solution and a homogeneous solution of melted hydrated salts at 50 C (Fig. 1 a).Herein, the Na 2 SO 4 ·10H 2 O (SSD) works as phase-change energy storage unit, the PAM hydrogel imparts …
Advanced adiabatic compressed air energy storage (AA-CAES) is a scalable storage technology with a long lifespan, fast response and low environmental impact, and is suitable for grid-level applications power systems with high-penetration renewable generation, AA-CAES is expected to play an active role in flexible regulation.. …
From RCh stabilized Pickering emulsions, a high energy storage GO-modified microPCM with photothermal conversion capacity was obtained. The microPCM exhibited a high encapsulation ratio of 92.3%, high enthalpy heat energy storage of 234.7 J/g, no leakage, high thermal reliability, and stability at a 9:1 core/shell ratio.
Phase change materials (PCMs) are a crucial focus of research in the field of photothermal energy storage. However, due to their inherently low photothermal …
Through vacuum impregnation of ODA, MSHS@ODA with both solar photothermal conversion and energy storage functions were formed. The results show that MSHS@ODA has high light absorptivity (75.5%), thermal …
2 Comprehending of PTC with Synergistic Effects Although "photothermal" has attracted increasing attention in the field of chemical catalysis in recent years, and is far from rare in biomedical applications and water vaporization, it is still a confusing item. [19-21] In biomedical applications or water vaporization processes, "photothermal" generally refers …
Multifunctional phase change materials (PCMs) are highly desirable for the thermal management of miniaturized and integrated electronic devices. However, the development of flexible PCMs possessing heat energy storage, shape memory, and adjustable electromagnetic interference (EMI) shielding properties under complex …
Its photothermal storage efficiency is as high as 91.4% under simulated sunlight irradiation. The light-thermal phase change hydrogel provides a new and effective way to integrate photothermal materials and PCMs …
Compared with the device without photothermal conversion layers, the specific capacitance increased 3.48 times at −20 °C and retained 87% capacitance at …
Emerging phase change material (PCM)-based photothermal conversion and storage technology is an effective and promising solution due to large thermal …
The photothermal conversion and thermal energy storage capacity of PCM composites fabricated from recycled TP waste, PW, and EG were investigated in this work. The prepared composites exhibited several unique features, including good shape stability, heat storage capacity, thermal conductivity, and significant photoabsorption …
Nowadays, solar energy is widely applied in thermal energy storage, seawater desalination, space heating, energy-efficient buildings, and photovoltaic systems [3]. Since solar irradiation is highly variable and depends on time of day [4], it is important to use a proper energy storage system to compromise solar energy capture and usage.
For the photochemical conversion, the incident photon energy (E total) can be transformed into three parts: the resulting chemical energy stored inside the material …
The energy storage brick achieved a photo-thermal energy conversion efficiency of 95.3%, and the average power of the charging and discharging processes was 2.1 kW and 2.4 kW, respectively. Download : Download high-res …
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 …
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 …
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 …
Solar energy, as a type of abundant, clean, and renewable energy, has been widely used in various fields in the past decades, including desalination, 8 solar evaporation, 9 and photoelectric processes. 10 In 1972, a pioneering work was reported by Fujishima and Honda on a photoelectrochemical system composed of a TiO 2 …
High entropy alloys (HEAs), which can incorporate five or more constituents into a single phase stably, have received considerable attention in recent years. The composition/structure complexity and adjustability endow them with a huge design space to adjust electronic structure, geometric configuration as well as catalytic activity …
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]].
MXene is an excellent photothermal conversion filler, imparting the MF@MXene/PEG PCM composites with solar energy storage property. Next, the light-to-thermal energy storage and release performances were comparatively studied. The experimentalFig. 6 a.
The unit capacity of the energy storage system is 1 kWh, and the upper and lower limits of the unit energy storage capacity are 0.9 and 0.1. The parameters of each energy storage system are shown in Table 3, and the discount rate is 8%.
Photo-thermal conversion phase-change composite energy storage materials (PTCPCESMs) are widely used in various industries because of their high …
However, the preparation of photocurable phase change materials (PCMs) with photothermal conversion and self-cleaning properties is challenging due to …
A 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 …