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Transparent Wood for Thermal Energy Storage and Reversible Optical Transmittance
Open accessAbstract
Functional load-bearing materials based on phase-change materials (PCMs) are under rapid development for thermal energy storage (TES) applications. Mesoporous structures are ideal carriers for PCMs and guarantee shape stability during the thermal cycle. In this study, we introduce transparent wood (TW) as a TES system. A shape-stabilized PCM based on polyethylene glycol is encapsulated into a delignified wood substrate, and the TW obtained is fully characterized, also in terms of nano- and mesoscale structures. Transparent wood for thermal energy storage (TW-TES) combines large latent heat (∼76 J g–1) with switchable optical transparency. During the heating process, optical transmittance increases by 6% and reaches 68% for 1.5 mm thick TW-TES. Characterization of the thermal energy regulation performance shows that the prepared TW-TES composite is superior to normal glass because of the combination of good heat-storage and thermal insulation properties. This makes TW-TES composites interesting candidates for applications in energy-saving buildings.
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Increasing PEG content can improve the latent heat of PEG/DW composite PCMs but also influences their mechanical performance.
“Although an increased PEG content could improve the latent heat of composite PCMs, the mechanical performance was also influenced.”
From Carbon-Based Composite Phase Change Materials for Thermal Energy Storage, Transfer, and Conversion (2021) · cites this paper as [156]
PEG/DW composite PCMs have a latent heat of 76 J g−1.
“Considering these advantages, Montanari et al.[ 156 ] prepared PEG/DW composite PCMs with a latent heat of 76 J g−1.”
From Carbon-Based Composite Phase Change Materials for Thermal Energy Storage, Transfer, and Conversion (2021) · cites this paper as [156]
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Huang, X., Chen, X., Li, A., Atinafu, D., Gao, H., Dong, W., & Wang, G. (2019) · Chemical Engineering Journal · doi:10.1016/j.cej.2018.09.013 · Cited by 701
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Cited by
Sorted by citations
Carbon-Based Composite Phase Change Materials for Thermal Energy Storage, Transfer, and Conversion
Chen, X., Cheng, P., Tang, Z., Xu, X., Gao, H., & Wang, G. (2021) · Advanced Science · doi:10.1002/advs.202001274 · Cited by 483
Metadata
- Authors
- Montanari, C., Li, Y., Chen, H., Yan, M., & Berglund, L. A.
- Affiliations
- KTH Royal Institute of Technology , , Teknikringen 56 , ,
- Wallenberg Wood Science Center (SE)
- KTH Royal Institute of Technology , , Isafjordsgatan 22 , ,
- Corresponding author
- Berglund, Lars A.
- Venue
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Published
- 2019-05-07
- Volume
- 11
- Issue
- 22
- Pages
- 20465-20472
- ISSN
- 1944-8244 (ISSN-L)
- 1944-8252
- PMC
- PMC7239506
- OpenAlex
- W2944593854
- Cited by
- 236
- References
- 1
- Citations by year
- 2026: 23 · 2025: 43 · 2024: 34 · 2023: 47 · 2022: 40 · 2021: 27 · 2020: 20 · 2019: 2
- FWCI
- 12.51
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Locations
- ACS Applied Materials & Interfaces (publishedVersion, cc-by)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- KTH Publication Database DiVA (KTH Royal Institute of Technology) (submittedVersion, other-oa)
- DiVA at Umeå University (Umeå University) (submittedVersion, other-oa)
- Funders
- H2020 European Research Council (742733)
- Knut och Alice Wallenbergs Stiftelse (NA)
- Kungliga Tekniska Högskolan (NA)
- Wallenberg Wood Science Center (NA)
- Topics
- Physical Sciences › Engineering › Mechanical Engineering › Phase Change Materials Research
- Physical Sciences › Engineering › Mechanical Engineering › Adsorption and Cooling Systems
- Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Transition Metal Oxide Nanomaterials
- Keywords
- transparent wood, thermal energy storage, phase change materials, polyethylene glycol, delignified wood, shape-stabilized phase change materials, optical transmittance, latent heat, thermal insulation
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