  In this study, we investigate the magnetic and magnetocaloric properties of
nanostructured La0.6Sr0.4CoO3 (LSC) samples synthesized under confinement
conditions within porous templates. Using this method, we obtained
de-agglomerated nanoparticles, which provide us with the feasibility of
applying them in nanoparticle films that can be tailored to intricate
geometries. We specifically explored the impact of pore size of the template on
key parameters including saturation magnetization (MS), Curie temperature (TC),
maximum entropy change ({\Delta}S), and relative cooling power (RCP). Our
findings reveal enhancements in those quantities, that are likely to be related
with the nanostructure of the samples, indicating the potential of
nanostructured LSC as an active material for magnetic refrigeration devices.
Our alternative approach of synthesizing magnetocaloric materials under
confinement conditions presents an exciting prospect for future research and
development in the field.
