{"id":1653,"date":"2021-06-16T06:51:52","date_gmt":"2021-06-16T06:51:52","guid":{"rendered":"https:\/\/www.h2greentech.eu\/1642\/"},"modified":"2021-06-16T08:56:15","modified_gmt":"2021-06-16T08:56:15","slug":"1642","status":"publish","type":"post","link":"https:\/\/www.h2greentech.eu\/sl\/1642\/","title":{"rendered":"Raziskovalna dejavnost na podro\u010dju gorivnih celic in vodikovih tehnologij na In\u0161titutu za kemijski in\u017eeniring in okoljsko tehnologijo (CEET) Tehni\u0161ke Univerze Graz"},"content":{"rendered":"

Zmanj\u0161evanje emisij toplogrednih plinov in politi\u010dne smernice, ki opredeljujejo vodik kot \u010disti nosilec energije, spodbujajo raziskave za trajnostno proizvodnjo vodika in njegove uporabe. Pri tem pomembno vlogo igrajo u\u010dinkovitost, \u017eivljenjska doba in trajnost celotne procesne verige. Delovna skupina Tehni\u0161ke Univerze Graz se ukvarja z osnovnimi in industrijskimi raziskavami za naslavljanje omenjenih izzivov. <\/strong><\/p>\n

Proizvodnja \u010distega vodika<\/strong><\/p>\n

Eno od delovnih podro\u010dij raziskovalne skupine, ki jo vodi prof. Viktor Hacker je razvoj novega proizvodnega procesa \u010distega vodika, tim. parni reforming z \u017eelezom (RESC – Reformer Steam Iron Process). V tem procesu kontaktna masa na osnovi \u017eeleza (oksida) deluje kot nosilec kisika in s ponovno oksidacijo s paro proizvaja \u010disti vodik. Visoke procesne temperature v obmo\u010dju od 600 do 1000 \u00b0 C in stalna kemijska pretvorba predstavljajo velike izzive, saj vodijo do trajnih strukturnih sprememb in faznih transformacij kovinskih oksidov. Optimizacijo primernih termi\u010dno in kemi\u010dno stabilnih kovinskih oksidov dose\u017eemo z dodajanjem ne-reaktivnih snovi, kot so aluminijev, silicijev ali cirkonijev oksid, in z izbolj\u0161anjem poti priprave nosilcev kisika, kar pove\u010duje mehansko celovitost in sposobnost izmenjave kisika kovinskih oksidov. Delovna skupina je trenutno vklju\u010dena v projekt Bio-Loop v sodelovanju z BEST Research in Tehni\u0161ko Univerzo Dunaj, med drugim za razvoj in izbolj\u0161anje tak\u0161nih nosilcev kisika tudi za prihodnje aplikacije, ki so usmerjene v biomaso.<\/p>\n

 <\/p>\n

\"Slika
Slika 1 Reaktor za proizvodnjo \u010distega vodika (\u00a9TU Graz)<\/figcaption><\/figure>\n

R&D vodikovih gorivnih celic <\/strong><\/p>\n

Za vzpostavitev svetovnega gospodarskega sistema, ki temelji na trajnosti, je nujen razvoj \u010distih in tihih pogonskih sistemov za transportne namene. Trenutno najprimernej\u0161a tehnologija za napajanje elektri\u010dnih vozil na gorivne celice, so polimerne elektrolitske gorivne celice (PEFC – polymer electrolyte fuel cells), ker omogo\u010dajo velik doseg in hitro polnjenje.
\nPEFC vsebuje membransko elektrodni sestav (MEA – membrane electrode assembly), ki pa je hkrati tudi najve\u010dji stro\u0161ek skladov gorivnih celic v elektri\u010dnih vozilih, ker so v elektrodnem katalizatorju uporabljene sorazmerno velike koli\u010dine plemenite kovine platine. S ciljem zmanj\u0161anja stro\u0161ka uporabe plemenitih kovin, so na CEET nedavno uspe\u0161no razvili polimer s katerim se podalj\u0161a \u017eivljenjsko dobo katalizatorja. Koncept se osredoto\u010da na selektivno prevleko ogljikovega nosilnega materiala s polianilinom (PANI).
\nV sodelovanju z mednarodnimi raziskovalnimi partnerji in industrijo so bili materiali v MEA sintetizirani in vrednoteni s posebej zasnovanimi pospe\u0161enimi stresnimi testi za dolo\u010ditev njihove u\u010dinkovitosti pri dolgotrajnem delovanju.<\/p>\n

\"Fabrication
Slika 3 Izdelava sklopa membranske elektrode (\u00a9TU Graz)<\/figcaption><\/figure>\n

Viri za \u010dlanek:<\/strong>
\nCEET \u2013 Official website<\/a><\/p>\n

Avtorji:<\/strong> Prof. Viktor Hacker, DI Michaela Roschger, DI Sigrid Wolf, H2greenTECH projektni partnerji iz Institute of Chemical Engineering and Enviromental Technology (CEET) of TU Graz<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Zmanj\u0161evanje emisij toplogrednih plinov in politi\u010dne smernice, ki opredeljujejo vodik kot \u010disti nosilec energije, spodbujajo raziskave za trajnostno proizvodnjo vodika in njegove uporabe. Pri tem pomembno vlogo igrajo u\u010dinkovitost, \u017eivljenjska…<\/p>\n","protected":false},"author":6,"featured_media":1671,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"yoast_head":"\nRaziskovalna dejavnost na podro\u010dju gorivnih celic in vodikovih tehnologij na In\u0161titutu za kemijski in\u017eeniring in okoljsko tehnologijo (CEET) Tehni\u0161ke Univerze Graz - H2GreenTECH<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.h2greentech.eu\/sl\/1642\/\" \/>\n<meta property=\"og:locale\" content=\"sl_SI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Raziskovalna dejavnost na podro\u010dju gorivnih celic in vodikovih tehnologij na In\u0161titutu za kemijski in\u017eeniring in okoljsko tehnologijo (CEET) Tehni\u0161ke Univerze Graz - H2GreenTECH\" \/>\n<meta property=\"og:description\" content=\"Zmanj\u0161evanje emisij toplogrednih plinov in politi\u010dne smernice, ki opredeljujejo vodik kot \u010disti nosilec energije, spodbujajo raziskave za trajnostno proizvodnjo vodika in njegove uporabe. 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