This systematic review assesses thermal conductivity and applications of nano-enhanced phase change materials, highlighting their role in energy-efficient building envelopes.
Key Points
Nano-enhanced phase change materials improve thermal conductivity significantly, enhancing energy efficiency in buildings.
Metal-oxide nanoparticles boost thermal conductivity by 15–60%, while carbon additives can enhance it by up to 400%, indicating substantial potential.
The mechanical stirring followed by ultrasonication is noted as a critical dispersion method for stable, homogenous nano-enhanced phase change materials.
Addressing knowledge gaps in optimal nanoparticle types and synthesis methods could accelerate the effective use of these materials in real buildings.