Shape-stabilized phase change materials using molten NaNO3 – KNO3 eutectic and mesoporous silica matrices

  title={Shape-stabilized phase change materials using molten NaNO3 – KNO3 eutectic and mesoporous silica matrices},
  author={Raul-Augustin Mitran and Daniel Lincu and Lucian Buhǎlţeanu and Daniela Berger and Cristian Matei},
  journal={Solar Energy Materials and Solar Cells},
Abstract Storing energy as heat at temperatures above 200 °C is necessary for both efficient industrial processes and continuous solar energy generation. In this study composite shape-stabilized phase change materials were obtained using mesoporous silica as matrix and the NaNO3 – KNO3 eutectic mixture as the active heat storage component. Five types of mesoporous matrices, including hexagonal MCM-41 and SBA-15, cubic FDU-12 and two mesocellular foam silica were investigated. With the exception… 
High temperature shape – Stabilized phase change materials obtained using mesoporous silica and NaCl – NaBr – Na2MoO4 salt eutectic
Abstract Thermal energy storage at temperatures above 400 °C is critical for efficient industrial processes and continuous solar thermal power generation. Phase change materials (PCMs) can be used
A Review of Composite Phase Change Materials Based on Porous Silica Nanomaterials for Latent Heat Storage Applications
A first in-depth look at the various methods for obtaining composite PCMs using porous silica nanomaterials, their properties, and applications is offered, as well as the future perspectives on improving the heat storage materials.
Improved thermophysical properties of shape-stabilized NaNO3 using a modified diatomite-based porous ceramic for solar thermal energy storage
Abstract Corrosion is regarded as one of great challenges for the application of salts-based phase change materials. To address such problem, a novel skeleton of modified diatomite-based porous
Surface evolution of eutectic MgCl2·6H2O-Mg(NO3)2·6H2O phase change materials for thermal energy storage monitored by scanning probe microscopy
Abstract Surface evolution of eutectic salt hydrate phase change materials (PCMs) plays an important role in progressive degradation, and its tracking and control are crucial to the cycle stability
Depression of melting point and latent heat of molten salts as inorganic phase change material: Size effect and mechanism
  • Shuai Zhang, Yingai Jin, Yuying Yan
  • Materials Science
    Journal of Molecular Liquids
  • 2021
Abstract The depression of melting point and latent heat is a common phenomenon for nanoporous shape-stabilised phase change materials (ss-PCMs), however, the underlying mechanism is not well
Polyurethane macro-encapsulation for CH3COONa·3H2O-Na2S2O3·5H2O/Melamine sponge to fabricate form-stable composite phase change material
Abstract Using nano-sized porous supporting material s as carriers to shape-stabilize phase change materials (PCMs) is leading currently. However, the high carrier proportion and the existence of
Red mud-molten salt composites for medium-high temperature thermal energy storage and waste heat recovery applications.
The working temperature of this novel CPCM make it ideal for waste heat recovery of medium-high temperature waste heat streams providing aValorization pathway and valorization for RM as a by-product for energy-related applications.
Experimental research on latent heat characteristics of binary mixed molten salt
At present, thermal storage is considered as one of the key technologies to alleviate the problem of instability and intermittence for renewable energy. Due to relatively high latent heat, latent


Functionalized mesoporous silica as matrix for shape-stabilized phase change materials
Abstract Shape-stabilized phase change materials (ssPCM) are used to reversibly store thermal energy while keeping their macroscopic solid shape. A porous matrix, such as mesoporous silica, can be
Evaluation of Different Mesoporous Silica Supports for Energy Storage in Shape-Stabilized Phase Change Materials with Dual Thermal Responses
The high variability and low heat of fusion of composite shape-stabilized phase change materials is a considerable challenge to their widespread application. Here, we present the synthesis of
Nanocomposite phase change materials based on NaCl–CaCl2 and mesoporous silica
The synthesis of phase change materials based on NaCl–CaCl2 molten salt mixture and mesoporous silica was investigated. The influence of mesoporous silica porosity and salt concentration on the
Improving thermal properties of shape-stabilized phase change materials containing lauric acid and mesocellular foam silica by assessing thermodynamic properties of the non-melting layer
Abstract Mesocellular foam silica-fatty acid composites can overcome the low enthalpy and high variability associated with this class of shape-stabilized phase change materials. We report the
Shape-stabilized phase change composite by impregnation of octadecane into mesoporous SiO2
Abstract We developed shape-stabilized phase change composites (PCCs) for building materials with high heat-storage density by vacuum impregnation of the phase change material (PCM) octadecane into
Radial-like mesoporous silica sphere: A promising new candidate of supporting material for storage of low-, middle-, and high-temperature heat
In the study, polyethylene glycol (PEG), lithium nitrate (LiNO3), and sodium sulfate (Na2SO4) were employed as the low-, middle-, and high-temperature heat storage media, respectively. A series of
Study on preparation and thermal properties of sodium nitrate/silica composite as shape-stabilized phase change material
Abstract A sodium nitrate (NaNO3)/silica (SiO2) composite was prepared as a shape-stabilized phase change material by a sol–gel procedure. In this composite, NaNO3 acted as the phase change material
Preparation and thermal properties of porous heterogeneous composite phase change materials based on molten salts/expanded graphite
Abstract Three kinds of porous heterogeneous composite phase change materials were synthesized from expanded graphite (EG) and binary molten salts (LiNO 3 –KCl, LiNO 3 –NaNO 3 and LiNO 3 –NaCl)
Thermal properties of C17H36/MCM-41 composite phase change materials
Abstract Phase change materials (PCMs) lie at the heart for energy storage technology. In this paper, we proposed a porous media based composite PCM, consisting of Heptadecane (C 17 H 36 ) as the
Confinement effect on enthalpy of fusion and melting point of organic phase change materials in cylindrical nanospace of mesoporous silica and carbon
Organic phase change materials (PCMs) were successfully confined into mesopores of host materials independently via vapor transportation to precisely investigate the changes in the enthalpy of fusion