abstract

• We performed density-functional-theoretical calculations of almost stoichiometric structures of hollow cages of TinOm systems with m ≈ 2n. We study the stability of TinOm hollow particles of different sizes and shapes for systems between 80 and 110 atoms using the binding energy as stability criterion. These cages could be useful in electrochemiluminescenece sensors, energy systems, encapsulation of beauty ingredients, and even in biomedical applications. Our results suggest the possible existence of such structures in a great variety of geometrical shapes with small binding energy differences among them, thus presenting a very dense spectrum of possible metastable configurations. Different initial seeds converge to the same final structures, which is also a signature for stability. These results are along the line of experiments in larger size systems, which demonstrate the feasibility of these structures without apparent size limitations. © 2022 Elsevier Ltd

authors

• Aguilera Granja Juan Faustino
• Montejano Carrizales Juan Martin
• Vogel E.E.

publication date

• 2022-01-01

funding provided via

• Comisión Nacional de Investigación Científica y Tecnológica, CONICYT: AFB180001; Fondo Nacional de Desarrollo Científico y Tecnológico, FONDECYT: 1190036, 1200302  Grant

published in

• Journal of Physics and Chemistry of Solids  Journal

keywords

• DFT calculations; Electronic properties; Oxides transition metal clusters; Structural properties Density functional theory; Electronic properties; Medical applications; Stability criteria; Transition metal oxides; Transition metals; Density functionals; DFT calculation; Hollow particle; Hollow structure; M-system; Oxide transition metal cluster; Stoichiometric structure; Theoretical calculations; Theoretical study; Transition-metal clusters; Binding energy

Digital Object Identifier (DOI)

• 10.1016/j.jpcs.2022.110646

PubMed ID

start page

end page

volume

• 164

issue