Advancements and challenges in enhancing salt hydrate phase change materials for building energy storage: Optimization methodologies and mechanisms

Special Topic: Energy Systems of Low Carbon Buildings

Open Access

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Figure 16

Morphologies of different porous carriers and the chemical compatibility between salt hydrate PCMs and porous carriers. (A) SEM image of EP. (B) XRD pattern of EP containing CaCl₂·6H₂O. (C) Fourier transform infrared spectroscopy (FT-IR) of EP containing CaCl₂·6H₂O. (D) SEM image of expanded vermiculite. (E) XRD pattern of expanded vermiculite containing Na₂SO₄·10H₂O and Na₂CO₄·10H₂O. (F) FT-IR spectrum of expanded vermiculite containing Na₂SO₄·10H₂O and Na₂CO₄·10H₂O. (G) SEM image of diatomite. (H) XRD pattern of diatomite containing CH₃COONa·3H₂O. (I) FT-IR spectrum of diatomite containing CH₃COONa·3H₂O. Adapted with permission from references [78,81,84], Copyright © 2017, Elsevier, Copyright © 2019, Elsevier, Copyright © 2022, Elsevier.

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