The Confinement Behavior and Mechanistic Insights of Organic Phase Change Material Encapsulated in Wood Morphology Genetic Nanostructures for Thermal Energy Storage
View abstract on PubMed
Summary
This summary is machine-generated.Wood-based materials effectively encapsulate phase change materials (PCMs) for thermal energy storage. This study reveals how wood
Area Of Science
- Materials Science
- Biomass Utilization
- Sustainable Energy
Background
- Wood is a promising, renewable matrix for thermal energy storage (TES) using phase change materials (PCMs).
- Discrepancies exist between theoretical and observed enthalpy values in wood-derived composite PCMs (CPCMs).
Purpose Of The Study
- To investigate the nanoconfinement effects of organic PCMs within a delignified balsa wood matrix.
- To understand how wood's nanostructure influences PCM behavior and thermal performance.
Main Methods
- Encapsulation of organic PCMs in delignified balsa wood with specific surface area (25.4 ± 1.1 m²/g) and nanoscale pores (avg. 2.2 nm).
- Thermal performance evaluation of various organic PCMs.
- Analysis of host-guest interactions, hydrogen bonding, and spatial constraints.
- Density functional theory (DFT) calculations.
Main Results
- Distinct phase change behaviors observed for different organic PCMs, influenced by functional groups and carbon chain length.
- Encapsulation mechanism dominated by host-guest interactions, modulating PCM mobility.
- Enhanced nanoconfinement effects observed, progressing from octadecane to stearic acid.
Conclusions
- Wood's hierarchical nanostructure significantly influences PCM behavior via nanoconfinement.
- Host-guest interactions are key to modulating PCM molecular mobility within the wood matrix.
- Advances understanding of nanoconfinement in wood-derived TES materials, enabling high-performance CPCMs.
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