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Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

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Acoplamiento catalizado por nanotubos de metal y carbono de la hidrogenación en magnesio

Xiangdong Yao¹, Chengzhang Wu, Aijun Du

¹ContARC Centre for Functional Nanomaterials, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, QLD 4072, Brisbane, Australia. x.yao@minmet.uq.edu.au

Journal of the American Chemical Society

|November 24, 2007

Resumen

Las parejas metálicas y los nanotubos de carbono aumentan dramáticamente el magnesio.

Área de la Ciencia:

Ciencia de los materiales Ciencia de los materiales.
Nanotecnología La nanotecnología es la nanotecnología.
Almacenamiento de hidrógeno almacenamiento de hidrógeno.

Sus antecedentes:

El magnesio (Mg) es un material prometedor para el almacenamiento de hidrógeno.
La aplicación práctica se ve obstaculizada por la cinética de hidrogenación lenta.

Objetivo del estudio:

Investigar los efectos sinérgicos de las parejas metálicas y los nanotubos de carbono en la hidrogenación de Mg.
Para dilucidar el mecanismo detrás de la cinética de hidrogenación de Mg mejorada.

Principales métodos:

Análisis experimental de materiales basados en Mg.
Caracterización de la cinética de la hidrogenación.
Análisis microestructural. análisis de las microestructuras.

Principales resultados:

Los efectos sinérgicos de las parejas metálicas y los nanotubos de carbono conducen a una cinética de hidrogenación ultrarrápida en el Mg.
Cinética mejorada atribuida a las interacciones atómicas metal-H y una eficiente difusión de hidrógeno.
Se propone un nuevo mecanismo de hidrogenación.

Conclusiones:

El material basado en Mg desarrollado supera las barreras críticas para el almacenamiento práctico de hidrógeno.
Este enfoque avanza significativamente el potencial de Mg en aplicaciones de almacenamiento de hidrógeno.

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