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Preparation and Characterization of C60/Graphene Hybrid Nanostructures
Published on: May 15, 2018
Reciclar c60+: síntesis de fullerenos y grandes anillos de carbono
Science (New York, N.Y.)
|May 7, 1993
Resumen
El recocido de los iones del racimo de carbono revela una vía hacia la síntesis del fullereno. Los isómeros C ((60) ((+) no fullereno se convierten en estructuras estables de fullereno y anillos monocíclicos, lo que sugiere barreras de baja energía para estas transformaciones.
Área de la Ciencia:
- Química Física es la química física.
- Ciencia de los materiales Ciencia de los materiales.
- Nanotecnología La nanotecnología es la nanotecnología.
Sus antecedentes:
- La vaporización láser del grafito produce iones de racimo C ((60) ((+)).
- Estos iones existen como fullerenos y como isómeros planos de anillos policíclicos poliinos.
Objetivo del estudio:
- Investigar la interconversión estructural de los isómeros no fullereno C ((60) ((+)).
- Determinar la estabilidad de diferentes estructuras de clúster de todo carbono.
- Elucidar las vías para la síntesis del fullereno.
Principales métodos:
- El recocido experimental de los iones de la fase gaseosa C ((60) ((+)).
- Análisis de las transformaciones estructurales y patrones de fragmentación.
Principales resultados:
- Los isómeros C ((60) ((+) no fulerenos se convierten en estructuras de fulerenos después del recocido.
- Se observa un isómero de anillo monocíclico estable y grande durante el recocido.
- La conversión a la geometría de fullereno implica cierta fragmentación, pero es en gran medida limpia.
Conclusiones:
- El anillo monocíclico es una forma no esférica estable de C60) +).
- Las bajas energías de activación facilitan las interconversiones estructurales.
- Estos procesos son significativos para la síntesis de los fullerenos esferoidales.
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