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Cited by 10Phase Change Materials ResearchConcrete and Cement Materials ResearchAdsorption and Cooling Systems

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Surface‐Engineered Cenospheres Encapsulating Phase Change Materials for Functional Cementitious Composites

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Rahemipoor, Sahand, Kuenzel, Carsten, Valdemārs Eiduks, Toms, Shishkin, Andrei, Izadifar, Mohammadreza, Ukrainczyk, Neven, Koenders, Eduardus, Ranjbar, Navid·2025·Advanced Science
DOI 10.1002/advs.202417350PMC PMC12245073
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Abstract

The escalating global energy demand underscores the critical need for advanced solutions for energy‐efficient buildings. Passive thermal energy storage systems using microencapsulated phase change materials (PCMs) offer promise but face integration challenges in cementitious materials due to weakening mechanical strength, which arises from poor shell strength and weak interfacial bonding with cementitious phases. This study introduces a novel approach for synthesizing functionalized microencapsulated PCMs from fly ash‐based cenospheres addressing interfacial compatibility. Cenospheres are perforated for PCM encapsulation and sealed using two different materials: 1) melamine‐formaldehyde (MF), a standard polymeric shell; and 2) silica, selected for its chemical compatibility with cementitious phases. Experimental results show that the silica sealing improved mechanical strength by 50% over those of MF, corroborated by molecular dynamic simulations showing silica's binding energy with calcium silicate hydrate exceeded threefold, with more than twice the uniaxial tensile strength. Thermal analyses confirmed the preservation of PCM in both sealing approaches. This work establishes a transformative pathway for advancing PCM‐based thermal energy storage in building materials.

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Metadata

Authors
Rahemipoor, S., Kuenzel, C., Valdemārs Eiduks, T., Shishkin, A., Izadifar, M., Ukrainczyk, N., Koenders, E., & Ranjbar, N.
Affiliations
  • Technical University of Denmark (DK)
  • Imperial College London (GB)
  • Institute of Physics and Materials Science Faculty of Natural Sciences And Technology at Riga Technical University 3 P. Valdena Str. Riga LV‐1048 Latvia
  • Riga Technical University (LV)
  • Technische Universität Darmstadt (DE)
Corresponding author
  • Izadifar, Mohammadreza
  • Ranjbar, Navid
ORCID
Venue
Advanced Science
Publisher
Wiley
Published
2025-04-11
Volume
12
Issue
26
Pages
e2417350-e2417350
ISSN
2198-3844 (ISSN-L)
DOI
10.1002/advs.202417350
PMC
PMC12245073
OpenAlex
W4409348150
Cited by
10
References
58
Citations by year
2026: 6 · 2025: 4
FWCI
2.73
Type
journal article
Language
en
Open access
Licence
Locations
  • Advanced Science (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • TUbilio (Technical University of Darmstadt) (acceptedVersion)
  • Technischen Universität Darmstadt (acceptedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Technischen Universität Darmstadt (submittedVersion)
  • Technischen Universität Darmstadt (cc-by)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › Phase Change Materials Research
  • Physical Sciences › Engineering › Civil and Structural Engineering › Concrete and Cement Materials Research
  • Physical Sciences › Engineering › Mechanical Engineering › Adsorption and Cooling Systems
Keywords
microencapsulated phase change materials, cenospheres, fly ash, cementitious composites, silica shell, melamine-formaldehyde shell, thermal energy storage, calcium silicate hydrate, interfacial bonding, mechanical strength, molecular dynamics simulation

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CoChat. (2026). Citation check: Surface‐Engineered Cenospheres Encapsulating Phase Change Materials for Functional Cementitious Composites. https://app.cochat.ai/papers/10.1002/advs.202417350
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Rahemipoor, S., Kuenzel, C., Valdemārs Eiduks, T., Shishkin, A., Izadifar, M., Ukrainczyk, N., Koenders, E., & Ranjbar, N. (2025). Surface‐Engineered Cenospheres Encapsulating Phase Change Materials for Functional Cementitious Composites. Advanced Science. https://doi.org/10.1002/advs.202417350