Abstract
The lattice-type-sensitive model has been developed to predict the size-dependent depression of melting entropy and enthalpy of nanoparticles. The size-dependency of melting entropy and enthalpy of nanoparticles has been obtained based on the relation between cohesive energy and melting point of nanoparticles obtained in our previous work. In this model the effects of particle size, lattice and surface packing factors, and the coordination numbers of the lattice and surface crystalline planes are considered. The presented equations of melting entropy and enthalpy have been corroborated by the experimental data of In and molecular dynamic (MD) simulation results of Cu nanoparticles. The model confirms that the size-dependency of the entropy and enthalpy of melting for nanoparticles is quite dependent on their lattice structure.
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