Funcionalización no-covalente de materiales grafénicos con perilenobisimidas insolubles
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2021-07-09
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Jaén: Universidad de Jaén
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[ES] Este trabajo se centra en la derivatización del dianhídrido del ácido 3,4,9,10-perilenotetracarboxílico (PTCDA) mediante reacciones de aminólisis empleando aminas volátiles, a fin de obtener un derivado soluble que permita su fácil adsorción en superficies 2D grafénicas y pueda ser fácilmente derivatizable mediante procesos térmicos post-adsorción. Las propiedades adsortivas del compuesto obtenido se han estudiado en isopropanol mediante la realización de cinéticas e isotermas de adsorción en nanoplatelets de grafeno y en nanotubos de carbono, obteniendo un alto grado de adsorción de este derivado en ambos adsorbentes. La adecuada solubilidad de este derivado, su alta capacidad de adsorción en superficies grafénicas y la volatilidad de las aminas empleadas, que facilitaría un tratamiento térmico post-adsorción hacen de este compuesto un candidato muy prometedor para la funcionalización no-covalente de superficies grafénicas.
[EN] This research work focuses on the derivatization of 3,4,9,10-perylenetetracarboxylic acid dianhydride (PTCDA) through aminolysis reactions using volatile amines, in order to obtain a soluble derivate that allow its easy adsorption in 2D graphene surfaces and can be easily derivatized by post-adsorption thermal processes. The adsorptive properties of the obtained compound have been studied in isopropanol by carrying out adsorption kinetics and isotherms on graphene nanoplatelets and on carbon nanotubes, obtaining a high degree of adsorption of this derivative on both adsorbents. The adequate solubility of this derivative, its high adsorption capacity on graphene surfaces and the volatility of the chosen amines, which would facilitate a post-adsorption heat treatment, make this compound a very promising candidate for the non-covalent functionalization of graphene surfaces.
[EN] This research work focuses on the derivatization of 3,4,9,10-perylenetetracarboxylic acid dianhydride (PTCDA) through aminolysis reactions using volatile amines, in order to obtain a soluble derivate that allow its easy adsorption in 2D graphene surfaces and can be easily derivatized by post-adsorption thermal processes. The adsorptive properties of the obtained compound have been studied in isopropanol by carrying out adsorption kinetics and isotherms on graphene nanoplatelets and on carbon nanotubes, obtaining a high degree of adsorption of this derivative on both adsorbents. The adequate solubility of this derivative, its high adsorption capacity on graphene surfaces and the volatility of the chosen amines, which would facilitate a post-adsorption heat treatment, make this compound a very promising candidate for the non-covalent functionalization of graphene surfaces.