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Almacenamiento de hidrógeno mediante heterociclos de boro-nitrógeno: una ruta sencilla para la regeneración del
Patrick G Campbell1, Lev N Zakharov, Daniel J Grant
1Department of Chemistry, University of Oregon, Eugene, Oregon 97403, USA.
Journal of the American Chemical Society
|March 11, 2010
Resumen
Desarrollamos un nuevo sistema de almacenamiento de hidrógeno utilizando heterociclos de nitruro de boro (BN). El combustible gastado puede regenerarse utilizando fuentes de hidrógeno, lo que permite futuros estudios sobre la liberación de hidrógeno de estos materiales avanzados.
Área de la Ciencia:
- Ciencia de los materiales Ciencia de los materiales.
- Química Química es la química.
- Ingeniería Química Ingeniería Química.
Sus antecedentes:
- El almacenamiento de hidrógeno es fundamental para las tecnologías de energía limpia.
- Los materiales de nitruro de boro (BN) ofrecen potencial para el almacenamiento reversible de hidrógeno.
- La regeneración eficiente de los materiales de almacenamiento de hidrógeno sigue siendo un reto.
Objetivo del estudio:
- Introducir una nueva plataforma de almacenamiento de hidrógeno utilizando heterociclos BN.
- Para demostrar el proceso de regeneración de los combustibles de almacenamiento de hidrógeno de BN gastados.
- Para permitir una mayor investigación sobre las propiedades de desorción de hidrógeno de los materiales BN cargados.
Principales métodos:
- Utilizó bien definidos materiales de heterociclo BN para el almacenamiento de hidrógeno.
- Se emplean fuentes moleculares de H(2) y H(-)/H(+) para la regeneración del combustible.
- Se realizó la caracterización cristalográfica de los intermediarios de regeneración.
Principales resultados:
- Se ha regenerado con éxito el combustible de almacenamiento de hidrógeno BN gastado.
- Asignaciones estructurales confirmadas de los intermediarios a través de la cristalografía.
- Se observaron cambios únicos de enlace con el aumento del contenido de hidrógeno en boro y nitrógeno.
Conclusiones:
- Se ha establecido una nueva plataforma de almacenamiento de hidrógeno renovable basada en heterociclos BN.
- Se confirma la vía de regeneración, allanando el camino para aplicaciones prácticas.
- El acceso sintético a los combustibles de ciclohexano BN completamente cargados facilita futuros estudios de desorción de hidrógeno.
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