{"id":3889,"date":"2018-01-18T08:45:39","date_gmt":"2018-01-18T08:45:39","guid":{"rendered":"https:\/\/www.upjs.sk\/informacie\/vyskum\/vedeckovyskumna-cinnost\/spickove-timy\/triangel\/ved-zameranie\/"},"modified":"2022-09-12T19:38:39","modified_gmt":"2022-09-12T19:38:39","slug":"ved-zameranie","status":"publish","type":"page","link":"https:\/\/www.upjs.sk\/informacie\/vyskum\/vedeckovyskumna-cinnost\/spickove-timy\/triangel\/ved-zameranie\/","title":{"rendered":"Vedeck\u00e9 zameranie"},"content":{"rendered":"
a.) Usporiadan\u00e1 nanop\u00f3rovit\u00e1 silika<\/strong> \u2013 V. Zele\u0148\u00e1k, D. Halamov\u00e1, A. Zele\u0148\u00e1kov\u00e1, M. Alm\u00e1\u0161i<\/p>\n Problematika usporiadanej nanop\u00f3rovitej siliky (PNS) sa objavila na sc\u00e9ne v\u00a0roku 1992, odvtedy p\u00fata ve\u013ek\u00fa pozornos\u0165 v\u00a0r\u00e1mci svetov\u00e9ho v\u00fdskumu. Na Slovensku ju adaptovali a\u00a0rozv\u00edjaj\u00fa \u010dlenovia t\u00edmu. Usporiadan\u00e1 nanop\u00f3rovit\u00e1 silika sa na rozdiel od in\u00fdch foriem SiO2<\/sub> vyzna\u010duje rovnomerne usporiadan\u00fdmi, unimod\u00e1lnymi p\u00f3rmi, ktor\u00fdch ve\u013ekos\u0165 je mo\u017en\u00e9 ladi\u0165 od cca 4nm a\u017e po 30 nm. T\u00e1to forma siliky sa pripravuje sol-gel met\u00f3dou s\u00a0vyu\u017eit\u00edm samousporad\u00favania povrchovo akt\u00edvnych l\u00e1tok, ktor\u00e9 tvoria \u0161trukt\u00farny mot\u00edv pri synt\u00e9ze. Existuj\u00fa r\u00f4zne typy usporiadanej nanop\u00f3rovitej siliky. \u010clenovia t\u00edmu sa v\u00a0r\u00e1mci svojich pr\u00e1c zaoberali silikou hexagon\u00e1lnej symetrie (MCM-41, SBA-15) a\u00a0kubickej symetrie (SBA-12, SBA-16, MCM-48). V\u00fdhodou siliky je, \u017ee jej povrch je mo\u017en\u00e9 cielene chemicky modifikova\u0165 pre r\u00f4zny \u00fa\u010del pou\u017eitia. \u010clenovia t\u00edmu sa v\u00a0svojich pr\u00e1cach zaoberali n\u00e1vrhom synt\u00e9z usporiadan\u00fdch nanop\u00f3rovit\u00fdch materi\u00e1lov na b\u00e1ze siliky, ako aj jej pou\u017eit\u00edm. \u010clenovia t\u00edmu sk\u00famali pou\u017eitie PNS v\u00a0nasleduj\u00facich oblastiach:<\/p>\n\n