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Material compuesto que comprende una matriz porosa de carbón amorfo y nanopartículas de Bi obtenible mediante un procedimiento sol-gel, procedimiento de obtención y su uso.

Authors: Fernández Sánchez, César; Gich, Martí; Roig Serra, Anna; Cotet, Liviu Cosmin;

Material compuesto que comprende una matriz porosa de carbón amorfo y nanopartículas de Bi obtenible mediante un procedimiento sol-gel, procedimiento de obtención y su uso.

Abstract

d) secar el gel húmedo; y e) someter el gel a pirólisis, en atmósfera inerte a una temperatura igual o superior a 800°C; donde al menos un precursor del Bi se adiciona en la primera etapa a) disolviéndose en el solvente junto al precursor orgánico para formar parte de la composición sol-gel, o se adiciona en la tercera etapa c) impregnando el gel orgánico húmedo con una solución del precursor de Bi en un solvente antes del secado; y donde el material presenta un área superficial de Bi comprendida entre 2.5-102 cm2 /g y 2.5-10 5 cm2 /g, la matriz presenta una porosidad intrínseca accesible comprendida entre 10% y 95% respecto al carbono amorfo no poroso.

La presente invención se refiere a un material compuesto que comprende una matriz porosa de carbono amorfo con un tamaño de poro comprendido entre 2 y 1000 nm, en la que se encuentran embebidas y distribuidas homogéneamente nanopartículas esféricas de tamaño comprendido entre 5 y 500 nm de al menos un elemento metálico que es Bi en fase cristalina tetragonal, obtenible mediante un procedimiento que comprende al menos las siguientes etapas:

a) preparar una composición líquida sol-gel en forma de solución que contiene al menos un precursor orgánico de la matriz en un solvente; b) depositar la solución líquida dentro de un molde o sobre un soporte en forma de capa o microestructura; c) condensar la solución líquida que contiene el precursor orgánico en el molde o en el soporte, hasta dar lugar a un gel orgánico húmedo;

A1 Solicitud de patente con informe sobre el estado de la técnica

Consejo Superior de Investigaciones Científicas

Peer reviewed

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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