Electron Contribution into Redundant Energy of Nanoparticles of Metals and Alloys

The change in energy of spherical nanoparticles of metals is considered in comparison with the volume sample. The calculations use a method of the electron content functional within the framework of models of the homogeneous ion background and non-structured pseudopotential. The approximated relation is obtained for estimation of its component, connected to the electron gas relaxation near the surface, in a wide range of sizes of the particles. The presented data testify to the noticeable increase of the electron contribution with a radius of particles less than 10 nm as compared to the metal bulk.