Carbonaceous Shape-Stabilized Octadecane/Multi-Walled Carbon Nanotube Composite Materials for Enhanced Energy Storage and Electromagnetic Interference Shielding
Maria Baikousi,
Christina Gioti,
Konstantinos C. Vasilopoulos,
Argyri Drymiskianaki,
Vassilis M. Papadakis,
Zacharias Viskadourakis,
Angelos Ntaflos,
Dimitrios Moschovas,
Alkiviadis S. Paipetis,
George Kenanakis,
Michael A. Karakassides
Affiliations
Maria Baikousi
Department of Materials Science and Engineering, University of Ioannina, GR-45110 Ioannina, Greece
Christina Gioti
Department of Materials Science and Engineering, University of Ioannina, GR-45110 Ioannina, Greece
Konstantinos C. Vasilopoulos
Department of Materials Science and Engineering, University of Ioannina, GR-45110 Ioannina, Greece
Argyri Drymiskianaki
Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, N. Plastira 100, Vasilika Vouton, GR-70013 Heraklion, Greece
Vassilis M. Papadakis
Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, N. Plastira 100, Vasilika Vouton, GR-70013 Heraklion, Greece
Zacharias Viskadourakis
Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, N. Plastira 100, Vasilika Vouton, GR-70013 Heraklion, Greece
Angelos Ntaflos
Department of Materials Science and Engineering, University of Ioannina, GR-45110 Ioannina, Greece
Dimitrios Moschovas
Department of Materials Science and Engineering, University of Ioannina, GR-45110 Ioannina, Greece
Alkiviadis S. Paipetis
Department of Materials Science and Engineering, University of Ioannina, GR-45110 Ioannina, Greece
George Kenanakis
Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, N. Plastira 100, Vasilika Vouton, GR-70013 Heraklion, Greece
Michael A. Karakassides
Department of Materials Science and Engineering, University of Ioannina, GR-45110 Ioannina, Greece
Developing materials for efficient energy storage and effective electromagnetic interference (EMI) shielding is crucial in modern technology. This study explores the synthesis and characterization of carbonaceous shape-stabilized octadecane/MWCNT (multi-walled carbon nanotube) composites, utilizing activated carbon, expanded graphite or ceramic carbon foam, as shape stabilizers for phase change materials (PCMs) to enhance thermal energy storage and EMI shielding, for energy-efficient and advanced applications. The integration of octadecane, a phase change material (PCM) with carbonaceous stabilizers ensures the material’s stability during phase transitions, while MWCNTs contribute to improved thermal storage properties and EMI shielding capabilities. The research aims to develop novel composites with dual functionality for thermal storage and EMI shielding, emphasizing the role of carbon matrices and their MWCNT composites. SEM and CT microtomography analyses reveal variations in MWCNT incorporation across the matrices, influenced by surface properties and porosity. Leaching tests, infrared spectroscopy (FT-IR) and differential scanning calorimetry (DSC) confirm the composite’s stability and high latent heat storage. The presence of nanotubes enhances the thermal properties of octadecane and ΔH values almost reached their theoretical values. EMI shielding effectiveness measurements indicate that the composites show improved electric properties in the presence of MWCNTs.
