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Published on: July 14, 2015
Alta conductividad de protones por un marco metálico-orgánico que incorpora racimos de Zn8O con grupos alineados de
Susan Sen1, Nisanth N Nair, Teppei Yamada
1Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India.
Journal of the American Chemical Society
|November 8, 2012
Resumen
Un nuevo marco metálico-orgánico exhibe una alta conductividad de protones. Este material muestra potencial para su uso en pilas de combustible, ofreciendo una alternativa a las tecnologías actuales como Nafion.
Área de la Ciencia:
- Ciencia de los materiales Ciencia de los materiales.
- Química Química es la química.
Sus antecedentes:
- Las estructuras metálicas orgánicas (MOF) son materiales porosos con diversas aplicaciones.
- La conductividad de los protones es crucial para los dispositivos electroquímicos como las pilas de combustible.
Objetivo del estudio:
- Para sintetizar y caracterizar un nuevo marco metal-orgánico.
- Para investigar la conductividad de protones del MOF. sintetizado.
Principales métodos:
- Síntesis solvotermal del MOF.
- Difracción de rayos X de polvo de temperatura variable para confirmar la estabilidad estructural.
- Mediciones de la conductividad de protones.
Principales resultados:
- Se sintetizó con éxito un nuevo marco metal-orgánico 3D, [{(Zn(0.25))(8)(O)}Zn(6)(L)(12)(H(2)O)(29)(DMF)(69)(NO(3))(2)]n), fue sintetizado con éxito.
- El marco demostró integridad estructural tras la eliminación de las moléculas de disolventes invitados (DMF y agua) a través del calentamiento.
- El compuesto exhibió una alta conductividad de protones con baja energía de activación, comparable a Nafion.
Conclusiones:
- El MOF sintetizado es un material estable con potencial para la conducción de protones.
- Este MOF presenta una alternativa prometedora para aplicaciones en pilas de combustible.
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