{"id":129435,"date":"1996-01-01T00:00:00","date_gmt":"1996-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/reacciones-de-intercalacion-en-fosfatos-laminares-de-titanio-iv\/"},"modified":"1996-01-01T00:00:00","modified_gmt":"1996-01-01T00:00:00","slug":"reacciones-de-intercalacion-en-fosfatos-laminares-de-titanio-iv","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/reacciones-de-intercalacion-en-fosfatos-laminares-de-titanio-iv\/","title":{"rendered":"Reacciones de intercalacion en fosfatos laminares de titanio (iv)."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Aranzazu Espina Alvarez <\/strong><\/h2>\n<p>Se describe la caracterizacion textual y microcalorimetrica de los compuestos alfa y-tip, utilizados como agentes intercalantes en el resto de la investigacion, concluyendose que el alfa-tip es un solido mesoporoso sin microporosidad apreciable y el y-tip un solido no poroso. Ambos presentan una elevada heterogeneidad superficial, siendo la superficie del y-tip mas energetica que la del alfa-tip.  se prepararon los intercalados de alfa-tip con n-alquilaminas (nc=1-6) en fase vapor, estudiando la descomposicion termica de los materiales obtenidos. En todos los compuestos sintetizados, la reaccion alcanza la totalidad de los centros activos, lo que equivale a la intercalacion de dos moles de amina por mol de alfa-tip.  se investigo la selectividad del alfa-tip en la intercalacion de n-alquilaminas, observandose que en el equilibrio, el material prefiere las aminas de cadena alquilica larga, la conjuncion de los efectos termodinamicos y cineticos permite explicar el comportamiento experimental.  se prepararon los intercalados con n-alquildiaminas (nc=1-9) de alfa y y-tip obteniendose en ambos casos materiales con el maximo grado de intercalacion estericamente posible (1 mol de diamina\/mol de ti para el alfa-tip y 2 moles de amina\/3 3 moles ti para y-tip).  se estudio la intercalacion de aminas ciclicas en alfa y gamma-tip, observandose que dificilmente se obtienen materiales saturados. Se constato un comportamiento diferente dependiendo del soporte utilizado (a o gamma-tip). La intercalacion en alfa-tip se produce de forma mucho mas lenta que en gamma-tip.  se estudio la reaccion del ion de keggin y de disoluciones de al(h2o)6+3 con los compuestos de intercalacion alfa-tip-propilaina y alfa-tip\/n-butilamina. En ambos casos, se caracterizaron textualmente los materiales apilarados obtenidos, estudiandose ademas, sus propiedades como cambiadores ionicos.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Reacciones de intercalacion en fosfatos laminares de titanio (iv).<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Reacciones de intercalacion en fosfatos laminares de titanio (iv). <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Aranzazu Espina Alvarez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Oviedo<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1996<\/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>Julio Rodr\u00edguez Fern\u00e1ndez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Vicente Gotor Santamar\u00eda <\/li>\n<li>Sebastian Bruque Gomez (vocal)<\/li>\n<li>Angel Linares Solano (vocal)<\/li>\n<li>Jos\u00e9 Mar\u00eda Guil Pinto (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Aranzazu Espina Alvarez Se describe la caracterizacion textual y microcalorimetrica de los compuestos alfa y-tip, utilizados como [&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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