Thermodynamic Modeling of Surface Segregation in Au-Ti Nanoparticles
The surface composition of nanoparticles is generally different from the average or bulk composition; this phenomenon is commonly referred to as surface segregation. In the present work, the surface segregation in Au-Ti nanoparticles has been analyzed based on a thermodynamic model that incorporates the size effect into the quasichemical model. The calculated surface compositions of Au-Ti nanoparticles are compared with that of the bulk Au-Ti alloys.
M. Gupta and Christina Y.H. Lim
R. Jayaganthan and G. M. Chow, "Thermodynamic Modeling of Surface Segregation in Au-Ti Nanoparticles", Journal of Metastable and Nanocrystalline Materials, Vol. 23, pp. 259-262, 2005