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Modelización molecular de nanotubos de carbono

Authors: Martín Martínez, Francisco Javier;

Modelización molecular de nanotubos de carbono

Abstract

En la presente memoria se pretende, mediante métodos mecanocuánticos basados en la Teoría del Funcional de la Densidad (DFT), una correcta modelización de los nanotubos de carbono. Mediante estos métodos computacionales se contribuirá a ampliar los conocimientos básicos sobre aspectos tales como la caracterización estructural detallada de los nanotubos, su interacción con otros sistemas como las nanoparticulas, y la construcción de uniones de múltiples nanotubos. Así, en primer lugar, se aborda el estudio de la estructura geométrica y electrónica de los nanotubos de carbono, con objeto de conocer cómo son los enlaces C-C a lo largo de la estructura y cómo se distribuyen, en consecuencia, los electrones. Se planteará la necesidad de modelos finitos que tengan en cuenta los efectos de borde presentes en los nanotubos. Por otro lado, se estudiará la presencia de defectos topológicos (pentágonos y heptágonos). En segundo lugar, se estudia la interacción entre nanotubos de carbono y nanoparticulas metálicas, en particular de platino, con objeto de conocer los fundamentos físico-químicos que rigen la interacción. Finalmente, se contribuye al desarrollo de los algoritmos necesarios para la construcción de uniones de tres nanotubos, mediante el álgebra de cintas, y a su posterior implementación informática en el programa de construcción de uniones de nanotubos CoNTub v2.0. Además se ha contribuido a desarrollar el programa TubeAnalyzer, una herramienta gráfica de análisis geométrico de estructuras y visualización de resultados de NICS.

Parte de la financiación de este trabajo corresponde a la Consejería de Innovación Ciencia y Empresa de la Junta de Andalucía (ref. FQM-840) y Ministerio de Educación (CTQ2007-65112).

Tesis Univ. Granada. Departamento de Química Orgánica

Country
Spain
Related Organizations
Keywords

621.38, Carbono, Química orgánica, Nanotubos, Moléculas, 547, 2306.07, 544.1

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green