A comprehensive review on phase change materials for heat storage applications: Development, characterization, thermal and …
Phase change materials (PCMs) utilized for thermal energy storage applications are verified to be a promising technology due to their larger benefits over other heat storage techniques. Apart from the advantageous thermophysical properties of PCM, the effective utilization of PCM depends on its life span.
Achieving multifunctional smart textile with long afterglow and …
In particular, the energy storage materials such as phase change materials (PCMs) that are added into textile fibers is also effective method to fabricate …
A brief review: the application of long afterglow luminescent materials …
Long afterglow luminescent (LAL) materials can release their stored light after turning off the light irradiating on them. Because of this unique characteristic, the coupling of LAL materials and conventional semiconductors is an environmental-friendly method for supporting photocatalytic activity for environmental remediation.
Optically-controlled long-term storage and release of thermal energy in phase-change materials …
Optically controlled thermal energy storage and release cycle. a Schematic of (1) thermal energy absorption by phase-change materials (PCM) composite, (2) ultraviolet (UV) illumination for ...
Li Promoting Long Afterglow Organic Light‐Emitting Transistor for Memory Optocoupler Module
Advanced Materials, one of the world''s most prestigious journals, is the home of choice for best-in-class materials science for more than 30 years. Abstract The artificial brain is conceived as advanced intelligence technology, capable to emulate in-memory processes occurring in the human brain by integrating synaptic devices.
Controlling persistent luminescence in nanocrystalline phosphors …
Persistent luminescent phosphors can store light energy in advance and release it with a long-lasting afterglow emission.
Novel smart textile with ultraviolet shielding and thermo-regulation fabricated via electrospinning …
The objective of this study is to develop a novel smart textile based on phase change materials (PCMs) polyethylene glycol (PEG) for UV-shielding and temperature regulation. Through combination of PEG as a PCM, polyamide 6 (PA6) and titanium dioxide (TiO 2) as supporting materials, the smart textiles were fabricated by …
Phase change materials for thermal energy storage
3.1.1.1. Salt hydrates Salt hydrates with the general formula AB·nH 2 O, are inorganic salts containing water of crystallization. During phase transformation dehydration of the salt occurs, forming either a salt hydrate that contains fewer water molecules: ABn · n H 2 O → AB · m H 2 O + (n-m) H 2 O or the anhydrous form of the salt AB · n H 2 O → …
Flexible phase change materials for thermal energy storage
1. Introduction. Phase change materials (PCMs) have attracted tremendous attention in the field of thermal energy storage owing to the large energy storage density when going through the isothermal phase transition process, and the functional PCMs have been deeply explored for the applications of solar/electro-thermal …
Self-luminous wood composite for both thermal and light energy …
In this work, a novel self-luminous wood composite based on phase change materials (PCMs) with superior thermal energy storage and long afterglow …
Role of phase change materials in thermal energy storage: …
Phase change materials (PCM) are excellent materials for storing thermal energy. PCMs are latent heat storage materials(LHS) that absorb and release large amounts of heat during changing the phase changes from …
Advances in thermal energy storage: Fundamentals and …
Families of phase change heat storage materials [64]. TES units can be classified into different types according to various characteristics, as shown in Fig. 3 . Thermal energy storage (TES) systems store heat or cold for later use and are classified into sensible heat storage, latent heat storage, and thermochemical heat storage.
Polyethylene glycol based self-luminous phase change materials …
Novel self-luminous wood composite based on PCMs with superior thermal energy storage and long afterglow luminescence (LAL) materials with excellent light …
Recent advances in phase change materials for thermal energy storage …
The research on phase change materials (PCMs) for thermal energy storage systems has been gaining momentum in a quest to identify better materials with low-cost, ease of availability, improved thermal and chemical stabilities and eco-friendly nature. The present article comprehensively reviews the novel PCMs and their synthesis …
Photooxidation triggered ultralong afterglow in carbon nanodots
Afterglow, also known as persistent luminescence, is a long-lifetime emission 1,2,3.The favorable luminescent ability endows afterglow materials with application potential in data storage ...
Phase change material-based thermal energy storage
Summary. Phase change materials (PCMs) having a large latent heat during solid-liquid phase transition are promising for thermal energy storage applications. However, the relatively low thermal conductivity of the majority of promising PCMs (<10 W/ (m ⋅ K)) limits the power density and overall storage efficiency.
Novel smart textile with ultraviolet shielding and thermo-regulation fabricated via electrospinning …
The phase change enthalpy can reach 130.7 J·g −1 and maintain a high energy storage density during 100 cyclic phase change tests. Specifically, MSHS@ODA decreases the operating temperature of lithium-ion batteries by 8 °C during discharge, ensuring their stable operation within the optimal temperature range.
New library of phase-change materials with their selection by the …
An effective way to store thermal energy is employing a latent heat storage system with organic/inorganic phase change material (PCM). PCMs can absorb and/or release a remarkable amount of latent ...
Phase change materials and carbon nanostructures for thermal energy storage…
Materials with solid-liquid phase change, which are suitable for heat or cold storage applications, are commonly referred to as phase change materials (PCMs). In this context, PCMs appear as a potential solution to increase the thermal regulation in buildings since they can storage more energy, in the latent form, than typical sensible …
Thermal conductivity enhancement on phase change materials for thermal energy storage…
Due to its high energy density, high temperature and strong stability of energy output, phase change material (PCM) has been widely used in thermal energy systems. The aim of this review is to provide an insight into the thermal conduction mechanism of phonons in PCM and the morphology, preparation method as well as …
Fabrication, characterization, and optimization of the composite long afterglow …
Eu 2+, Dy 3+ co-doped strontium aluminate long afterglow luminescent material (SrAl 2 O 4:Eu 2+, Dy 3+) is one of the most energy-saving and efficient long afterglow luminescent materials at present. Due to the characteristic broadband transition of Eu 2+ (4f 6 5d → 4f 7 ), it has excellent green afterglow properties.
Novel hybrid microencapsulated phase change materials incorporated wallboard for year-long year energy storage …
This type of hybrid phase change materials wallboard consists of three types of phase change materials with different phase-change temperatures that can be utilized efficiently in different seasons. The thermal performances of the hybrid phase change material wallboards (two combination modes: Mode1 and Mode2) were …
Novel phase change cold energy storage materials for …
Review on thermal energy storage with phase change: materials, heat transfer analysis and applications Appl. Therm. Eng., 23 (3) (2003), pp. 251-283, 10.1016/S1359-4311(02)00192-8 View PDF View article View in Scopus Google Scholar [16] L. Liang, X. Chen
Tuning mechanoluminescent long-afterglow composites toward mechanical energy lighting
Mechanoluminescence (ML) and long-afterglow (LAG) luminescence are usually studied independently and applied in different fields. SrAl2O4:Eu(II)/Dy(III) (SAOED) is a well-known long-afterglow and elastico-mechanoluminescent material that emits bright green visible light through absorption of photon energy, followed by naturally thermal …
A Comprehensive Review on Phase Change Materials and …
Abstract. Phase change materials (PCMs) have shown their big potential in many thermal applications with a tendency for further expansion. One of the application areas for which PCMs provided significant thermal performance improvements is the building sector which is considered a major consumer of energy and responsible for a good share …
Controlling persistent luminescence in nanocrystalline phosphors | Nature Materials
Transition metals, such as Mn 2+, Bi 2+, Ni 2+ and Cr 3+, are commonly used as activators to generate persistent red/NIR luminescence with great flexibility in spectral tuning (Fig. 2a) 35, 36, 37 ...
Effect of cooling rate on the microstructure and luminescence properties of Sr2 MgSi2 O7 :Eu(2+),Dy(3+) materials …
The development of phase change materials (PCMs)-based energy storage devices for both thermal and ... As a kind of excellent energy storage materials, long afterglow materials can store light ...
Spatiotemporal phase change materials for thermal energy long-term storage …
Phase change materials (PCMs) are considered the ideal solar thermal storage media, as they can absorb or release a large amount of latent heat during phase change process. Their thermal energy storage is considerably higher than that of traditional sensible heat energy storage materials [12], [13], [14] .
Exploration of long afterglow luminescence materials work as …
Therefore, the long afterglow material is an energy storage material that can provide long-term illumination [19]. According to the type of matrix, long afterglow luminescent materials mainly include sulfide systems, aluminate systems, silicate systems, gallate systems, and other systems.
