Design of synthesis route for inorganic shape-stabilized phase change materials. Direct sol–gel process versus vacuum impregnation method

Milián, Yanio E.; Ushak, Svetlana

doi:10.1007/s10971-019-05119-8

Cited by 4 publications

(1 citation statement)

References 34 publications

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“…A comparative study between direct sol-gel synthesis and melt impregnation has been carried out using Na 2 SO 4 ·10H 2 O as the starting salt [ 199 ]. The sodium sulfate fraction was varied between 20% and 60% wt.…”

Section: Phase Change Materials Containing Porous Silica Matrices mentioning

confidence: 99%

A Review of Composite Phase Change Materials Based on Porous Silica Nanomaterials for Latent Heat Storage Applications

et al. 2021

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Phase change materials (PCMs) can store thermal energy as latent heat through phase transitions. PCMs using the solid-liquid phase transition offer high 100–300 J g−1 enthalpy at constant temperature. However, pure compounds suffer from leakage, incongruent melting and crystallization, phase separation, and supercooling, which limit their heat storage capacity and reliability during multiple heating-cooling cycles. An appropriate approach to mitigating these drawbacks is the construction of composites as shape-stabilized phase change materials which retain their macroscopic solid shape even at temperatures above the melting point of the active heat storage compound. Shape-stabilized materials can be obtained by PCMs impregnation into porous matrices. Porous silica nanomaterials are promising matrices due to their high porosity and adsorption capacity, chemical and thermal stability and possibility of changing their structure through chemical synthesis. This review offers a first in-depth look at the various methods for obtaining composite PCMs using porous silica nanomaterials, their properties, and applications. The synthesis and properties of porous silica composites are presented based on the main classes of compounds which can act as heat storage materials (paraffins, fatty acids, polymers, small organic molecules, hydrated salts, molten salts and metals). The physico-chemical phenomena arising from the nanoconfinement of phase change materials into the silica pores are discussed from both theoretical and practical standpoints. The lessons learned so far in designing efficient composite PCMs using porous silica matrices are presented, as well as the future perspectives on improving the heat storage materials.

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Section: Phase Change Materials Containing Porous Silica Matrices mentioning

confidence: 99%

A Review of Composite Phase Change Materials Based on Porous Silica Nanomaterials for Latent Heat Storage Applications

et al. 2021

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Preparation and thermal performance of 1,6-hexanediol/SiO2 form-stable composite phase change materials

et al. 2023

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Thermal performance of modified melamine foam/graphene/paraffin wax composite phase change materials for solar-thermal energy conversion and storage

Cui

et al. 2022

Journal of Cleaner Production

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Design of synthesis route for inorganic shape-stabilized phase change materials. Direct sol–gel process versus vacuum impregnation method

Cited by 4 publications

References 34 publications

A Review of Composite Phase Change Materials Based on Porous Silica Nanomaterials for Latent Heat Storage Applications

A Review of Composite Phase Change Materials Based on Porous Silica Nanomaterials for Latent Heat Storage Applications

Preparation and thermal performance of 1,6-hexanediol/SiO2 form-stable composite phase change materials

Thermal performance of modified melamine foam/graphene/paraffin wax composite phase change materials for solar-thermal energy conversion and storage

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