{"id":73430,"date":"2005-06-04T00:00:00","date_gmt":"2005-06-04T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/nanoparta%c2%adculas-aciculares-de-fe-co-protegidas-mediante-recubrimientos-inorganicos\/"},"modified":"2005-06-04T00:00:00","modified_gmt":"2005-06-04T00:00:00","slug":"nanoparta%c2%adculas-aciculares-de-fe-co-protegidas-mediante-recubrimientos-inorganicos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica-inorganica\/nanoparta%c2%adculas-aciculares-de-fe-co-protegidas-mediante-recubrimientos-inorganicos\/","title":{"rendered":"Nanopart\u00edculas aciculares de fe-co protegidas mediante recubrimientos inorg\u00e1nicos"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Ra\u00fal Pozas Bravo <\/strong><\/h2>\n<p>El objetivo fundamental de este trabajo consiste en la obtenci\u00f3n de nanopart\u00edculas aciculares de fe-co de menor tama\u00f1o que las que pueden encontrare en la literatura cient\u00edfica (longitud mayor 170 nm) y estrecha distribuci\u00f3n de tama\u00f1os, con un alto grado de control microestructural y morfol\u00f3gico, elevadas propiedades magn\u00e9ticas (valores elevados de coercitivida, cuadratura de la curva de hist\u00e9resis y de mangetizaci\u00f3n de saturaci\u00f3n) y estables frente a la oxidaci\u00f3n.  este objetivo se ha abordado a trav\u00e9s de varias etapas:     a,- desarrollando un m\u00e9todo de s\u00edntesis de nanopart\u00edculas aciculares de goetita con tama\u00f1o (aproximadamente 100 nm) y forma homog\u00e9neos, basado en la oxidaci\u00f3n mediante burbujeo de aire de disoluciones de feso4 previamente precipitadas por la adici\u00f3n de na2co3.     b,- optimizando la protecci\u00f3n frente a la siterizaci\u00f3n de estos precursores mediante su recubrimiento o dopado con \u00f3xidos de aluminio \u00f3 itrio.     c,- optimizando el m\u00e9todo de incorporaci\u00f3n de co en estos precursores, como de la cantidad incorporada, analizando los efectos que tienen la naturaleza y distribuci\u00f3n de las especies co en las nanopart\u00edculas aciculares de fe finalmente obtenidas, sobre sus propiedades magn\u00e9ticas.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Nanopart\u00edculas aciculares de fe-co protegidas mediante recubrimientos inorg\u00e1nicos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Nanopart\u00edculas aciculares de fe-co protegidas mediante recubrimientos inorg\u00e1nicos <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Ra\u00fal Pozas Bravo <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Sevilla<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 06\/04\/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>Manuel Oca\u00f1a Jurado<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: jos\u00e9 Torrent castellet <\/li>\n<li>asuncion Fernandez camacho (vocal)<\/li>\n<li>alejandro Conde amiano (vocal)<\/li>\n<li>pierre Bonville (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Ra\u00fal Pozas Bravo El objetivo fundamental de este trabajo consiste en la obtenci\u00f3n de nanopart\u00edculas aciculares de [&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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