A Single Model for the Thermodynamics and Kinetics of Metal Exsolution from Perovskite Oxides
Alexander Bonkowski,
Matthew J. Wolf,
Ji Wu
et al.
Abstract:Exsolution has emerged
as an outstanding route for producing
oxide-supported
metal nanoparticles. For ABO3-perovskite
oxides, various late transition-metal cations can be substituted into
the lattice under oxidizing conditions and exsolved as metal nanoparticles
after reduction. A consistent and comprehensive description of the
point-defect thermodynamics and kinetics of this phenomenon is lacking,
however. Herein, supported by hybrid density-functional-theory calculations,
we propose a single model that expla… Show more
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