Publication: Micro y nanoestructuras de óxido de estaño y sus nanocompuestos con óxido de grafeno: síntesis, luminiscencia y aplicaciones en energía
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2019-05-07
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Universidad Complutense de Madrid
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Abstract
Debido a que el SnO2 presenta unas interesantes propiedades fsico-qumicas, este material ha sido ampliamente empleado en diversas aplicaciones, entre las cuales destaca el sensado de gases, su uso como electrodos transparentes, en catalisis y aplicaciones relacionadas con el almacenamiento de energía. No obstante, dichas aplicaciones pueden mejorarse mediante el control de determinados parametros tales como como la morfología, el tamaño, la introduccion de dopantes y la fabricacion de materiales compuestos basados en grafeno, lo que ha motivado la novedosa investigacion llevada a cabo en esta Tesis Doctoral. A lo largo de esta memoria de Tesis Doctoral se exponen y discuten los resultados de mayor relevancia relativos a la síntesis de nanopartículas de SnO2 dopadas con Li, as como al crecimiento de microestructuras alargadas de SnO2 dopado con Li. Por otro lado, tambien se han sintetizado materiales compuestos de estas nanopartculas con una matriz de oxido de grafeno (GO). Ademas, se ha estudiado su posible aplicacion como materiales luminiscentes y se han realizado pruebas de concepto para su uso en celdas electroqumicas de ion-Li (LIB's) para el almacenamiento de energía...
Due to the interesting physical and chemical properties of SnO2, this material has been widely used in various applications, among which gas sensing as well as its use as transparent electrodes, in catalysis and in energy storage related applications are very relevant. Nevertheless, these applications can be improved by controlling certain parameters such as morphology, size, doping and the synthesis of graphene-based composite materials, which have motivated the novel research carried out in this Dissertation.In this Thesis, the most relevant results related to the synthesis of SnO2 nanoparticlesdoped with Li are described and discussed, as well as the growth of elongated microstructures of Li-doped SnO2. Besides, composite materials of these nanoparticles have also been synthesized with a graphene oxide (GO) host. In addition, its potential application as luminescent materials has been studied and a proof of concept electrochemical characterization has been carried out for its use in Li-ion electrochemical cells (LIB's) for energy storage...
Due to the interesting physical and chemical properties of SnO2, this material has been widely used in various applications, among which gas sensing as well as its use as transparent electrodes, in catalysis and in energy storage related applications are very relevant. Nevertheless, these applications can be improved by controlling certain parameters such as morphology, size, doping and the synthesis of graphene-based composite materials, which have motivated the novel research carried out in this Dissertation.In this Thesis, the most relevant results related to the synthesis of SnO2 nanoparticlesdoped with Li are described and discussed, as well as the growth of elongated microstructures of Li-doped SnO2. Besides, composite materials of these nanoparticles have also been synthesized with a graphene oxide (GO) host. In addition, its potential application as luminescent materials has been studied and a proof of concept electrochemical characterization has been carried out for its use in Li-ion electrochemical cells (LIB's) for energy storage...
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Tesis de la Universidad Complutense de Madrid, Facultad de Ciencias Físicas, leída el 20-12-2018