{"id":27880,"date":"2018-03-09T09:20:20","date_gmt":"2018-03-09T09:20:20","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/diseno-de-catalizadores-de-ru-co-y-ni-soportados-en-materiales-carbonosos-para-su-aplicacion-en-la-hidrogenacion-estereoselectiva-de-paracetamol\/"},"modified":"2018-03-09T09:20:20","modified_gmt":"2018-03-09T09:20:20","slug":"diseno-de-catalizadores-de-ru-co-y-ni-soportados-en-materiales-carbonosos-para-su-aplicacion-en-la-hidrogenacion-estereoselectiva-de-paracetamol","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/nacional-de-educacion-a-distancia\/diseno-de-catalizadores-de-ru-co-y-ni-soportados-en-materiales-carbonosos-para-su-aplicacion-en-la-hidrogenacion-estereoselectiva-de-paracetamol\/","title":{"rendered":"Dise\u00f1o de catalizadores de ru, co y ni soportados en materiales carbonosos para su aplicaci\u00f3n en la hidrogenaci\u00f3n estereoselectiva de paracetamol"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Miriam Cerro Alarc\u00f3n <\/strong><\/h2>\n<p>La hidrogenaci\u00f3n estereoselectiva de 4-acetamidofenol (paracetamol) para la producci\u00f3n de trans-4-acetamidociclohexanol se llevo a cabo empleando catalizadores heterog\u00e9neos de ru, co y ni soportados sobre un grafito de alta superficie (h) y un tamiz molecular de carb\u00f3n (s). Los resultados catal\u00edticos dependen, en primer lugar, de las propiedades intr\u00ednsecas de cada metal. As\u00ed, en general, el ru es el metal m\u00e1s activo, la selectividad qu\u00edmica (hidrogenaci\u00f3n total del anillo arom\u00e1tico vs.Hidrogenaci\u00f3n parcial) es ru-ni mayor o, y la selectividad diastereom\u00e9rica (formaci\u00f3n del is\u00f3mero trans el 4-acetamidociclohexanol vs.Is\u00f3mero cis) es mayor empleando co. por otro lado, la selectividad (tanto qu\u00edmica como diastereom\u00e9rica) depende de las especies absorbidas y de su proporci\u00f3n relativa. As\u00ed cuando la adsorci\u00f3n del paracetamol se produce de un modo co-planar, respecto del a superficie, se favorece la formaci\u00f3n del producto de hidrogenaci\u00f3n total del anillo y el is\u00f3mero cis, mientras que si la adsorci\u00f3n es no plana se favorece la formaci\u00f3n de productos de hidrogenaci\u00f3n parcial y, si la hidrogenaci\u00f3n prosigue, la formaci\u00f3n del is\u00f3mero trans. La proporci\u00f3n de estas especies adsorbidas dependen del tama\u00f1o y densidad electr\u00f3nica de las part\u00edculas met\u00e1licas (cuanto mayor sea mayor probabilidad de adsorci\u00f3n no plana del paracetamol).  la caracterizaci\u00f3n de los catalizadores por microcalorimetr\u00eda de adsorci\u00f3n de co y empleando la reacci\u00f3n modelo de hidrogenolisis e isomerizaci\u00f3n de n-butano permite relacionar las propiedades estructurales y electr\u00f3nicas de las part\u00edculas met\u00e1licas con los resultados de selectividad en la reacci\u00f3n de hidrogenaci\u00f3n de paracetamol.  la combinaci\u00f3n de ru y co, empleando el grafito de alta superficie como soporte, dio lugar a la formaci\u00f3n de aleaciones superficiales ru-co. Esto se traduce en un aumento en la selectividad, tanto qu\u00edmica como diastereom\u00e9rica (m\u00e1s adecuadamen<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Dise\u00f1o de catalizadores de ru, co y ni soportados en materiales carbonosos para su aplicaci\u00f3n en la hidrogenaci\u00f3n estereoselectiva de paracetamol<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Dise\u00f1o de catalizadores de ru, co y ni soportados en materiales carbonosos para su aplicaci\u00f3n en la hidrogenaci\u00f3n estereoselectiva de paracetamol <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Miriam Cerro Alarc\u00f3n <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Nacional de educaci\u00f3n a distancia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 18\/12\/2003<\/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>Antonio  Ricardo Guerrero Ruiz<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: vicenta Mu\u00f1oz andr\u00e9s <\/li>\n<li>vicente Fernandez herrero (vocal)<\/li>\n<li>enrique Teso vilar (vocal)<\/li>\n<li>marcos Fern\u00e1ndez Garc\u00eda (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Miriam Cerro Alarc\u00f3n La hidrogenaci\u00f3n estereoselectiva de 4-acetamidofenol (paracetamol) para la producci\u00f3n de trans-4-acetamidociclohexanol se llevo a [&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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