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Preparation and Characterization of C60/Graphene Hybrid Nanostructures
Published on: May 15, 2018
Fullerenos líquidos a temperatura ambiente: una morfología poco común de los derivados del C60
Tsuyoshi Michinobu1, Takashi Nakanishi, Jonathan P Hill
1National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan.
Journal of the American Chemical Society
|August 10, 2006
Resumen
Los derivados C60 líquidos a temperatura ambiente con cadenas de alquilo más largas muestran una viscosidad significativamente menor. Estos nuevos materiales de carbono ofrecen propiedades electroquímicas prometedoras y alta movilidad de carga para aplicaciones de ciencia de materiales.
Área de la Ciencia:
- Ciencia de los materiales Ciencia de los materiales.
- Química orgánica es la química orgánica.
- La electroquímica es electroquímica.
Sus antecedentes:
- Los fullerenos, como el C60, son alótropos de carbono con propiedades electrónicas únicas.
- La funcionalización del C60 es crucial para ajustar sus propiedades para aplicaciones específicas.
- El control de la viscosidad de los materiales de carbono es esencial para el procesamiento y la fabricación de dispositivos.
Objetivo del estudio:
- Para sintetizar y caracterizar derivados de C60 líquido a temperatura ambiente.
- Para investigar el efecto de la longitud de la cadena de alquilo en la viscosidad de estos derivados de C60.
- Evaluar las propiedades electroquímicas y la movilidad del portador de carga de los materiales sintetizados.
Principales métodos:
- Síntesis de derivados de C60 con diferentes longitudes de rama de 2,4,6-trialquiloxifenilo.
- Mediciones de viscosidad a temperatura ambiente.
- Caracterización electroquímica (por ejemplo, voltametría cíclica).
- Evaluación de la movilidad de la carga transportadora.
Principales resultados:
- Se observó una disminución dramática de la viscosidad con el aumento de la longitud de la cadena de alquilo.
- Los derivados del C60 exhibieron una actividad electroquímica comparable a la del C60 puro.
- Se midió una movilidad del portador de carga relativamente alta para estos materiales C60 funcionalizados.
Conclusiones:
- La longitud de la cadena de alquilo es un factor crítico para reducir la viscosidad de los derivados de C60.
- Estos derivados líquidos de C60 representan una nueva clase de materiales de carbono con viscosidad ajustable.
- Su combinación de baja viscosidad, actividad electroquímica y alta movilidad los hace muy atractivos para aplicaciones avanzadas de ciencia de materiales.
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