Artículo
Defying Coulomb's law: A lattice-induced attraction between lithium ions
Juarez, Maria Fernanda
; Dominguez Flores, Fabiola; Goduljan, Aleksej; Mohammadzadeh, Leila; Quaino, Paola Monica
; Santos, Elizabeth del Carmen
; Schmickler, Wolfgang
Fecha de publicación:
11/2018
Editorial:
Pergamon-Elsevier Science Ltd
Revista:
Carbon
ISSN:
0008-6223
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Normally ions with the same charge repel each other, but in very rare cases an intervening medium can produce an apparent attraction. We have studied the adsorption of Li-ions on semiconducting carbon nanotubes by density functional theory, one ion being inside, the other outside. The tube shields the direct Coulomb interaction between the ions, but the presence of the ion inside facilitates the adsorption of the ion outside, thus producing an apparent attraction. We give a quantitative explanation based on the electronic band structure of the tube, and surmise, that the same effect will hold on other carbon materials. Our results may explain the apparent attraction of Li-ions that has been observed in Li-batteries.
Palabras clave:
CARBON NANOTUBES
,
Li IONS
,
THEORY
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Articulos(IFEG)
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Articulos(IQAL)
Articulos de INSTITUTO DE QUIMICA APLICADA DEL LITORAL
Articulos de INSTITUTO DE QUIMICA APLICADA DEL LITORAL
Citación
Juarez, Maria Fernanda; Dominguez Flores, Fabiola; Goduljan, Aleksej; Mohammadzadeh, Leila; Quaino, Paola Monica; et al.; Defying Coulomb's law: A lattice-induced attraction between lithium ions; Pergamon-Elsevier Science Ltd; Carbon; 139; 11-2018; 808-812
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