{"id":41663,"date":"1999-01-01T00:00:00","date_gmt":"1999-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-de-los-mecanismos-de-formacion-de-particulas-de-zno-con-diseno-morfologico-y-dimensional-obtenidas-por-el-metodo-de-precipitacion-controlada\/"},"modified":"1999-01-01T00:00:00","modified_gmt":"1999-01-01T00:00:00","slug":"estudio-de-los-mecanismos-de-formacion-de-particulas-de-zno-con-diseno-morfologico-y-dimensional-obtenidas-por-el-metodo-de-precipitacion-controlada","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/estudio-de-los-mecanismos-de-formacion-de-particulas-de-zno-con-diseno-morfologico-y-dimensional-obtenidas-por-el-metodo-de-precipitacion-controlada\/","title":{"rendered":"Estudio de los mecanismos de formacion de particulas de zno con dise\u00f1o morfologico y dimensional obtenidas por el metodo de precipitacion controlada."},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Rodriguez Paez Jorge  Enrique <\/strong><\/h2>\n<p>El trabajo de investigaci\u00f3n realizado sobre la obtenci\u00f3n de polvos de zno que se expone en esta memoria de tesis, trata sobre el problema asociado con la s\u00edntesis de \u00e9ste \u00f3xido y el control que se pueda ejercer sobre la forma y el tama\u00f1o de la part\u00edcula, y la eficiencia del proceso. Los estudios de hidr\u00f3lisis, condensaci\u00f3n y formaci\u00f3n de compuestos de cinc en el sistema zn(ch3coo)2-nh4oh-h2o y el posterior lavado de la suspensi\u00f3n con etanol o agua, permitieron desarrollar un proceso de s\u00edntesis denominado \u00abm\u00e9todo de precipitaci\u00f3n controlada (mpc)\u00bb a trav\u00e9s del cual se obtienen part\u00edculas de zno con morfolog\u00eda y tama\u00f1o determinado. El control sobre la formaci\u00f3n de los precursores intermedios (metaestables) de cinc se realiz\u00f3 a trav\u00e9s de medidas de ph y de la conductividad espec\u00edfica (variable f\u00edsica) del sistema.  un aspecto novedoso es la transformaci\u00f3n de fase que experimentan los precursores intermedios de cinc a zno o zn(oh)2 que se produce durante el lavado de la suspensi\u00f3n. normalmente el lavado del precipitado se realiza para eliminar los aniones y otras especies solubles, que se han utilizado para la s\u00edntesis..<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio de los mecanismos de formacion de particulas de zno con dise\u00f1o morfologico y dimensional obtenidas por el metodo de precipitacion controlada.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio de los mecanismos de formacion de particulas de zno con dise\u00f1o morfologico y dimensional obtenidas por el metodo de precipitacion controlada. <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Rodriguez Paez Jorge  Enrique <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1999<\/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>Jos\u00e9 Francisco Fern\u00e1ndez Lozano<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: pedro Duran botia <\/li>\n<li>Jos\u00e9 Luis Garc\u00eda fierro (vocal)<\/li>\n<li>Luis Esquivias (vocal)<\/li>\n<li>ernesto Dieguez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Rodriguez Paez Jorge Enrique El trabajo de investigaci\u00f3n realizado sobre la obtenci\u00f3n de polvos de zno que [&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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