{"id":17111,"date":"2018-03-09T09:05:02","date_gmt":"2018-03-09T09:05:02","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/sa%c2%adntesis-caracterizacion-y-estudio-de-la-actividad-catala%c2%adtica-de-catalizadores-heterogeneos-aluminofosfatos-oxinitrados-aipons-aplicacion-en-reaciones-de-interes-industrial-en-qua\/"},"modified":"2018-03-09T09:05:02","modified_gmt":"2018-03-09T09:05:02","slug":"sa%c2%adntesis-caracterizacion-y-estudio-de-la-actividad-catala%c2%adtica-de-catalizadores-heterogeneos-aluminofosfatos-oxinitrados-aipons-aplicacion-en-reaciones-de-interes-industrial-en-qua","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/sa%c2%adntesis-caracterizacion-y-estudio-de-la-actividad-catala%c2%adtica-de-catalizadores-heterogeneos-aluminofosfatos-oxinitrados-aipons-aplicacion-en-reaciones-de-interes-industrial-en-qua\/","title":{"rendered":"S\u00edntesis, caracterizaci\u00f3n y estudio de la actividad catal\u00edtica de catalizadores heterog\u00e9neos aluminofosfatos oxinitrados (aipons). aplicaci\u00f3n en reaciones de inter\u00e9s industrial en qu\u00edmica fina"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Rut Guil L\u00f3pez <\/strong><\/h2>\n<p>En esta memoria se describe la metodolog\u00eda de preparaci\u00f3n de aluminofosfatos oxinitrados (alpons), la caracterizaci\u00f3n de su superficie y su comportamiento catal\u00edtico.  de las t\u00e9cnicas de caracterizaci\u00f3n empleadas, destacan espectroscop\u00eda infrarroja y espectroscop\u00eda fotoelectr\u00f3nica de rayos x, que han permitido determinar la naturaleza de los centros formados: p-nh2, p-nh-al y p=n-al, y sus poblaciones en funci\u00f3n de las condiciones de nitruraci\u00f3n utilizadas en el preparaci\u00f3n de los catalizadores. Se demuestra que:  1,- la formaci\u00f3n de centros p-nh2 y p=n-al ocurre a costa de centros p-oh del alpoa de partida.  2,- la existencia de un equilibrio entre los centros p-nh2 y los p=n-al en el alpon, al tratarlos t\u00e9rmicamente en presencia de agua.  se realizaron pruebas puntuales de nitruraci\u00f3n de otros materiales (silicoaluminofosfato amorfo y s\u00edlice-al\u00famina).  una vez caracterizados los alpons, se estudi\u00f3 su actividad catal\u00edtica y la del material de partida, en reacciones \u00abtest\u00bb escogidas:  * de cat\u00e1lisis b\u00e1sica: reacci\u00f3n de condensaci\u00f3n de knoevenagel: phcho + r1-ch2-r2.  la modificaci\u00f3n de la naturaleza de r1 y r2 var\u00eda la acidez de los protones del metileno activado (-ch2-). Como r1-ch2-r2 se emple\u00f3: malononitrilo y cianoacetato de etilo.  * de cat\u00e1lisis \u00e1cida: reacci\u00f3n de acetalizaci\u00f3n de aldeh\u00eddos.  * de cat\u00e1lisis bifuncional: reacci\u00f3n de condensaci\u00f3n entre benzaldeh\u00eddo y malonato de dietilo. Se demostr\u00f3 que esta reacci\u00f3n pude ser catalizada tanto por \u00e1cidos como por bases, lo que posibilita la activaci\u00f3n simult\u00e1nea de ambos reactivos si el catalizador es bifuncional, aumentando enormemente su actividad catal\u00edtica.  los resultados catal\u00edticos de estos materiales permitieron concluir que:  1,- los alpons son catalizadores principalmente b\u00e1sicos gracias a sus centros p-nh2 (de elevada fuerza b\u00e1sica), con cierto car\u00e1cter bifuncional. al aumentar el contenido de nitr\u00f3geno (perdida de p<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>S\u00edntesis, caracterizaci\u00f3n y estudio de la actividad catal\u00edtica de catalizadores heterog\u00e9neos aluminofosfatos oxinitrados (aipons). aplicaci\u00f3n en reaciones de inter\u00e9s industrial en qu\u00edmica fina<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 S\u00edntesis, caracterizaci\u00f3n y estudio de la actividad catal\u00edtica de catalizadores heterog\u00e9neos aluminofosfatos oxinitrados (aipons). aplicaci\u00f3n en reaciones de inter\u00e9s industrial en qu\u00edmica fina <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Rut Guil L\u00f3pez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 29\/05\/2002<\/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> Climent Olmedo M. Jos\u00e9<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: avelino Corma canos <\/li>\n<li>hermenegildo Garc\u00eda g\u00f3mez (vocal)<\/li>\n<li>vicente Forn\u00e9s segu\u00ed (vocal)<\/li>\n<li>joaquin Perez pariente (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Rut Guil L\u00f3pez En esta memoria se describe la metodolog\u00eda de preparaci\u00f3n de aluminofosfatos oxinitrados (alpons), la [&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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[332,199,4709,305,16820,560,333,5155],"tags":[1122,53725,40494,46801,53724,12442],"class_list":["post-17111","post","type-post","status-publish","format-standard","hentry","category-ciencias-tecnologicas","category-fisica","category-fotoquimica","category-ingenieria-y-tecnologia-quimicas","category-politecnica-de-valencia","category-quimica-fisica","category-quimica-industrial","category-tecnologia-de-catalisis","tag-avelino-corma-canos","tag-climent-olmedo-m-jose","tag-hermenegildo-garcia-gomez","tag-joaquin-perez-pariente","tag-rut-guil-lopez","tag-vicente-fornes-segui"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/17111","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=17111"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/17111\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=17111"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=17111"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=17111"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}