Artículo
Influence of temperature on the interaction between Pd clusters and the TiO2 (110) surface
Autor/es | San Miguel Barrera, Miguel Ángel
Oviedo López, Jaime Fernández Sanz, Javier |
Departamento | Universidad de Sevilla. Departamento de Química Física |
Fecha de publicación | 2007-08-06 |
Fecha de depósito | 2017-07-18 |
Publicado en |
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Resumen | The behavior of a Pd nanocluster on the rutile TiO2 (110) surface has been analyzed by extensive first principles molecular dynamics simulations between 100 K and 1073 K. Calculations predict a steep change in the morphological ... The behavior of a Pd nanocluster on the rutile TiO2 (110) surface has been analyzed by extensive first principles molecular dynamics simulations between 100 K and 1073 K. Calculations predict a steep change in the morphological and electronic cluster structure around 800 K in excellent agreement with previous experimental evidence. At low temperature, the cluster geometry is mainly controlled by the substrate structure; however, upon the transition temperature, the cluster-substrate interaction decreases appreciably, and the cluster adopts a geometry more stable in vacuum and becomes metallic. These results illustrate at an atomistic level the influence of temperature on the geometrical and electronic properties of oxide-supported clusters. |
Agencias financiadoras | Ministerio de Educación y Ciencia (MEC). España |
Identificador del proyecto | MAT2005-01872 |
Cita | San Miguel Barrera, M.Á., Oviedo López, J. y Fernández Sanz, J. (2007). Influence of temperature on the interaction between Pd clusters and the TiO2 (110) surface. Physical Review Letters, 99 (6), 066102-1-066102-6. |
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