{"id":72626,"date":"2005-07-02T00:00:00","date_gmt":"2005-07-02T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/purificacion-y-estudio-de-la-funcionalizacion-de-nanotubos-de-carbono-swnt\/"},"modified":"2005-07-02T00:00:00","modified_gmt":"2005-07-02T00:00:00","slug":"purificacion-y-estudio-de-la-funcionalizacion-de-nanotubos-de-carbono-swnt","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/purificacion-y-estudio-de-la-funcionalizacion-de-nanotubos-de-carbono-swnt\/","title":{"rendered":"Purificaci\u00f3n y estudio de la funcionalizaci\u00f3n de nanotubos de carbono (swnt)"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Gemma Gabriel Bugu\u00f1a <\/strong><\/h2>\n<p>Los nanotubos de carbono (swnt) producidos por arco el\u00e9ctrico son un material altamente impuro en contenido en metales y formas desordenadas de carbono.  se ha purificado este material con diferentes tratamientos sucesivos. En primer lugar tratamientos con \u00e1cido n\u00edtrico, con los cuales se han conseguido disminuir el contenido met\u00e1lico hasta un 3,4% en peso. Se realizaron posteriores tratamiento de oxidaci\u00f3n t\u00e9rmicos, los cuales permitieron eliminar las formas desordenadas de carbono, obteniendo cocientes de \u00e1reas del modo tangencial de los nanotubos respecto del carbono de 21,4. Tambi\u00e9n se intentaron realizar recocidos sin \u00e9xito.  con el objetivo de solubilizar estos materiales se ensayaron diferentes v\u00edas de funcionalizaci\u00f3n con aminas arom\u00e1ticas y alif\u00e1cticas, siendo algunas de ellas perfluoradas. Dependiendo dela basicidad de estas minas, an\u00e1lisis de xps permitieron determinar que: los swnts funcionalizados con octadecilamina ten\u00edan esta amina enlazada covalentemente v\u00eda un enlace amidas. Los swnts funcionarizados con aminas perfluoradas tienen las aminas adsorbidas en su superficie debido a su baja basicidad. Y los manotubos funcionarizados con 2-aminoantraceno tienen parte de la maina quimiadsorbida y parte fisiadsorbida.  la funcionalizaci\u00f3n de los nanotubos se ha revelado como un buen m\u00e9todo para solubilizar o dispersar estos materiales en diferentes tipos de disolventes.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Purificaci\u00f3n y estudio de la funcionalizaci\u00f3n de nanotubos de carbono (swnt)<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Purificaci\u00f3n y estudio de la funcionalizaci\u00f3n de nanotubos de carbono (swnt) <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Gemma Gabriel Bugu\u00f1a <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 07\/02\/2005<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Jaume Casab\u00f3 I Gispert<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: marcial Moreno ma\u00f1as <\/li>\n<li>jordi Fraxedas calduch (vocal)<\/li>\n<li>M\u00aa teresa Martinez fernandez de landa (vocal)<\/li>\n<li>eduardo Hern\u00e1ndez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Gemma Gabriel Bugu\u00f1a Los nanotubos de carbono (swnt) producidos por arco el\u00e9ctrico son un material altamente impuro [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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