Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 22, Issue 13, Pages 4389-4394Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201505035
Keywords
microencapsulation; n-docosane; phase-change materials; polyurethane; thermal energy storage
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Funding
- ERC Enercapsule project
- FP7 Nano Barrier project
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We have encapsulated the heat exchange material, n-docosane, into polyurethane capsules of different sizes. Decreasing the size of the capsules leads to changes of the crystallinity of phase-change material as well as melting/crystallization temperature. The novelty of the paper includes 1)protection of the nanostructured energy-enriched materials against environment during storage and controlled release of the encapsulated energy on demand and 2)study of the structure and surface-to-volume properties of the energy-enriched materials dispersed in capsules of different sizes. The stability of energy nanomaterials, influence of capsule diameter on their energy capacity, homogeneity and operation lifetime are investigated.
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