Graphene phase change energy storage material
Fatty amines/graphene sponge form-stable phase change material composites with exceptionally high loading rates and energy density for thermal energy storage Chem. Eng. J., 382 ( 2020 ), Article 122831 - Download [PDF]
Enhanced properties of phase change material -SiO2-graphene ...
Fatty amines/graphene sponge form-stable phase change material composites with exceptionally high loading rates and energy density for thermal energy storage Chem. Eng. J., 382 ( 2020 ), Article 122831
Graphene aerogel-based phase changing composites for thermal energy ...
Phase changing materials (PCM) release or absorb heat in high quantity when there is a variation in phase. PCMs show good energy storage density, restricted operating temperatures and hence find application in various systems like heat pumps, solar power plants, electronic devices, thermal energy storage (TES) systems. Though it has extensive usage in such a diverse range …
Thermally induced flexible wood based on phase change materials …
The applications of composite phase change materials were limited due to their poor energy utilization efficiency, low thermal conductivity and strong rigidity. In this work, thermally induced flexible wood based on phase change material was fabricated by impregnating delignified wood (DW) with graphene and a novel kind of hyperbranched polyurethane. The …
Fe3O4-functionalized graphene nanosheet embedded phase change material ...
Phase change materials have been widely adopted to store thermal energy to improve its utilization efficiency. However, the inherent low energy conversion ability of these materials is one of the k ... we report novel magnetic- and sunlight-driven energy conversion and storage nanocomposites based on Fe 3 O 4-functionalized graphene nanosheet ...
Accelerating the solar-thermal energy storage via inner-light
Zhang, Y. et al. Ag-graphene/PEG composite phase change materials for enhancing solar-thermal energy conversion and storage capacity. Appl. Energy 237, 83–90 (2019).
Influences of reduction temperature on energy storage …
More importantly, the composite PCMs had outstanding photothermal conversion capability, and the temperature of the composite phase change material could rise from 20 ℃ to 63 ℃ after absorbing light for 4 min. Overall, the increase of the reduction temperature of graphene aerogel has an outstanding contribution to improving the energy ...
Polyethylene glycol/graphene oxide aerogel shape-stabilized phase ...
Shape stability of the PEG is one of basic requirements as phase change energy storage materials, which can be the significantly improved by introducing GA. ... Hybrid graphene aerogels/phase change material composites: Thermal conductivity, shape-stabilization and light-to-thermal energy storage. Carbon, 100 (2016), pp. 693-702.
International Journal of Energy Research
Solid-solid phase change materials (SSPCMs) used in thermal energy storage (TES) system attract much attention in recent days. Here, graphene nanoplatelets (GnPs) were introduced into pentaglycerine (PG) with mass ratios of 1 wt%, 2 wt%, and 4 wt% to obtain PG/GnPs PCMs.
Fe3O4-functionalized graphene nanosheet embedded …
The energy is stored by phase change materials during the phase transition process. The obtained hybrid nanocomposites exhibit excellent thermal stability with high melting–freezing enthalpy and excellent reversibility. Furthermore, …
Excellent heat transfer and thermal energy storage …
Applied Energy Symposium 2021: Low carbon cities and urban energy systems September 4-8, 2021, Matsue, Japan Paper ID: 8. Excellent heat transfer and thermal energy storage performance of erythritol/graphene composite phase change materials. Xiaoxin Yan. 1, Haibo Zhao. 1, Yanhui Feng . 1,2*, Lin Qiu. 1,2*, Xinxin Zhang. 1,2, Taku Ohara. 3
Fatty amines/graphene sponge form-stable phase change material ...
It can be used as a storage space for phase change energy storage materials. The presence of dense layered pores can prevent the leakage of phase change energy storage materials to a certain extent. As shown in Fig. 7 c and Fig. 7 d, almost all of the GS graphene nanosheet surface is covered by TDA (or ODA). These characterization results ...
Accelerating the solar-thermal energy storage via inner-light
Phase change material for solar-thermal energy storage is widely studied to counter the mismatch between supply and demand in solar energy utilization. Here, authors introduce optical waveguide to ...
Enhanced thermal energy storage performance of hydrous salt phase …
Structural modification of two-dimensional materials has a significant influence on performance. In this work, a novel preparation method is presented to get defective graphene and the as-obtained defective graphene shows great benefits for the thermal energy storage performance of phase change material (PCM).
Phase change materials microcapsules reinforced with …
Among many energy storage technologies, phase change energy storage technology can transfer part of the peak load to the off-peak load period to achieve better power management[3,4] and is considered to be one of the most promising energy storage strategies[5-7]. Although phase change energy storage technology is an important technology to improve
Graphene-enhanced phase change materials for thermal management …
We show that the graphene-enhanced phase change material can substantially improve the thermal management of Li-ion and other advanced types o f batteries. ... Battery energy storage systems ...
Enhanced Thermal Properties of Phase Change Materials through …
Phase change materials (PCMs) are increasingly gaining prominence in thermal energy storage due to their impressive energy storage capacity per unit volume, especially in applications with low and medium temperatures. Nevertheless, PCMs have significant limitations regarding their ability to conduct and store heat, primarily due to their …
An Overview of the Nano-Enhanced Phase Change Materials for Energy …
The researchers found a drastic increase of about 230% for the nano-enhanced phase change material at 1% vol. of graphene nanoplatelets. ... The hysteresis characteristics of phase change energy storage materials are based on the fact that the temperature range of phase change of the energy storage materials is different in the process of heat ...
Photothermal phase change material microcapsules via cellulose ...
Phase change materials (PCMs) have attracted significant attention in thermal management due to their ability to store and release large amounts of heat during phase transitions. However, their widespread application is restricted by leakage issues. Encapsulating PCMs within polymeric microcapsules is a promising strategy to prevent leakage and increase …
Transient thermal response of phase change material embedded …
Throughout this study, a systematic investigation was carried out on heating performances of phase change materials doped by graphene nanoplatelets (GNP) in an energy storage unit. The composite samples were prepared by dispersing GNP into organic PCM via melting temperatures between 61 and 66 °C and at various mass fractions that included 3, 5 …
Carbon nanotube graphene multilevel network based phase …
For phase change materials, the crystallization process directly affected the phase change behavior of the efficiency of thermal energy utilization. Here, GO played an …
Graphene nanoplatelets-infused binary eutectic phase change materials ...
Energy depletion for the thermal regulation of buildings is a major global concern. Herein, we develop a binary eutectic phase change material (EPCM) consisting of sodium sulphate decahydrate (SSD) and sodium phosphate dibasic dodecahydrate (SPDD) that were modified using borax, carboxymethyl cellulose (CMC), and graphene nanoplatelets (GNP).
Form-Stable Composite Phase Change Materials …
Solar–thermal energy conversion and storage technology has attracted great interest in the past few decades. Phase change materials (PCMs), by storing and releasing solar energy, are able to effectively address the …
Ag-graphene/PEG composite phase change materials for …
In this paper, we reported a new strategy to improve solar-to-thermal energy storage efficiency by introducing Ag nanoparticle-functionalized graphene nanosheets (Ag–GNS) to the polyethylene glycol (PEG) phase change system (Fig. 1).The novel materials (Ag–GNS/PEG) can harvest and convert visible light to thermal energy more efficiently (η = …
Paraffin/graphene sponge composite as a shape-stabilized phase change …
Paraffin/graphene sponge composite as a shape-stabilized phase change material for thermal energy storage - Author: Pengyang Li, Qiang Chen, Qingyu Peng, Xiaodong He ... aims to study the synergistic effect of graphene sponge on the thermal properties and shape stability of composite phase change material (PCM).,Graphene oxide sponge is first ...
Carbon nanotube graphene multilevel network based phase …
Phase change fibers with abilities to store/release thermal energy and responsiveness to multiple stimuli are of high interest for wearable thermal management …
Thermal performance of modified melamine foam/graphene…
Latent heat thermal energy storage system depends on the melting and solidification process of phase change materials (PCMs) to store and release large thermal energy, allowing for the inter-regional and inter-temporal use of thermal energy (Kenisarin and Mahkamov, 2007) combining the latent heat thermal energy storage system with the solar …
Shape-stabilized phase change material with highly thermal conductive ...
Liu, L. et al. Graphene Aerogels Enhanced Phase Change Materials prepared by one-pot method with high thermal conductivity and large latent energy storage. Sol. Energy Mater.
Graphene aerogel stabilized phase change material for thermal …
Phase change material (PCM) with thermal energy storage capacity has been a hot topic due to the advantages of satisfying the demand for energy storage, saving and …
Thermal properties of beeswax/graphene phase change material as energy ...
DOI: 10.1016/J.APPLTHERMALENG.2016.10.085 Corpus ID: 113447779; Thermal properties of beeswax/graphene phase change material as energy storage for building applications @article{Amin2017ThermalPO, title={Thermal properties of beeswax/graphene phase change material as energy storage for building applications}, author={Muhammad Nasir …
An Overview of the Nano-Enhanced Phase Change …
The researchers found a drastic increase of about 230% for the nano-enhanced phase change material at 1% vol. of graphene nanoplatelets. ... The hysteresis characteristics of phase change energy storage materials are …
Graphene oxide/polyurethane‐based composite solid–solid phase …
The preparation of phase change materials (PCMs) with high energy storage, thermal conductivity, and photothermal conversion capability is essential for improving solar …
Graphene aerogel-based phase changing composites for thermal …
Phase changing materials (PCM) release or absorb heat in high quantity when there is a variation in phase. PCMs show good energy storage density, restricted operating temperatures and …
Preparation and characterization of capric-stearic …
Phase change material (PCM) is highly efficient energy storage material, which can change the material morphology and structure, absorb or release a large amount of energy with the changing temperature, and meanwhile keep the temperature unchanged during the phase change process [1], [2], [3], [4].
Thermal properties of beeswax/graphene phase change material as energy ...
The basic properties of a phase change material are the phase change temperature and latent heat [6]. Transfer of thermal energy in a phase change material occurs during the phase change process from one phase to another phase [7]. Phase changes in these materials are separated into solid-solid, solid-liquid, and solid-gas.
Heat transfer study of phase change materials with graphene …
These materials are commonly known as PCM, are promising thermal storage materials for storing and discharging bulk amounts of latent heat throughout phase change process (Fang et al., 2009, Hasnain, 1998, Kant et al., 2016a, Murat Kenisarin and Mahkamov, 2006) with regulated time intervals associated as per energy demand.
Advanced Phase Change Composite by Thermally Annealed …
Hybrid network structure of boron nitride and graphene oxide in shape-stabilized composite phase change materials with enhanced thermal conductivity and light-to-electric energy conversion …
Thermal Conductivity Enhancement and Shape Stabilization of Phase ...
The porous interconnected structure of three-dimensional graphene (3DC) combines the excellent thermal conductivity of graphene with an interconnected architecture, thereby creating a thermal network within composites infused with 3DC. In this study, improvements in thermal conductivity, latent heat of fusion (Hf), and shape stability of paraffin …
Hierarchical graphene foam-based phase change materials with …
Recently, graphene foam (GF) with a three-dimensional (3D) interconnected network produced by template-directed chemical vapor deposition (CVD) has been used to prepare composite phase-change materials (PCMs) with enhanced thermal conductivity. However, the pore size of GF is as large as hundreds of micrometers, resulting in a …