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Keramični materiali za visokotemperaturne gorivne celice s trdnim elektrolitom - SOFC = Ceramic materials for high temperature solid oxide fuel cells (SOFC)Hrovat, Marko, 1948-2023 ; Holc, Janez ; Bernik, SlavkoGorivna celica je element, ki pretvarja kemijsko energijo goriva naravnost v električno. V prispevku podajamo kratek pregled karakteristik gorivnih celic. Visokotemperaturne gorivne celice s trdnim ... elektrolitom (SOFC) delujejo danes pri temperaturah okrog 1000°C, težnja pa je znižanje temperature delovanja na okrog 800°C. Zaradi visokih temperatur delovanja SOFC uporabljajo za komponente v glavnem kemične materiale. Osnovne zahteve zanje so stabilnost in kompatibilnost pri visokih temperaturah. Za trdni elektrolit se večinoma uporablja z ▫$Y_2O_3$▫ stabilizirana kubična oblika ▫$ZrO_2$▫, ki ima visoko ionsko prevodnost in nizko elektronsko. Alternativna materiala za SOFC z nižjo temperaturo delovanja sta predvsem dopirana ▫$CeO_2$▫ in ▫$LaGaO_3$▫. Za katodo se uporabljajo perovskiti na osnovi dopiranega ▫$LaMnO_3$▫, ▫$LaFeO_3$▫ali ▫$LaCoO_3$▫. Perovskiti reagirajo pri povišanih temperaturah z ▫$ZrO_2$▫ in lahko tvorijo na stiku nezaželene visokouporovne faze. Preiskovali smo fazne relacije med prevodnimi perovskiti in materiali za trdne elektrolite. Študirali smo vpliv zamenjave dela kationov na mestih "A" in "B" v perovskitni strukturi na karakteristike in reaktivnost katodnih materialov.Source: Kovine zlitine tehnologije = Metals alloys technologies. - ISSN 1318-0010 (Letn. 33, št. 3/4, maj-avg. 1999, str. 193-200)Type of material - article, component partPublish date - 1999Language - slovenianCOBISS.SI-ID - 156074
Author
Hrovat, Marko, 1948-2023 |
Holc, Janez |
Bernik, Slavko
Topics
gorivne celice |
SOFC |
delovanje |
materiali |
interakcije
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source: Kovine zlitine tehnologije = Metals alloys technologies. - ISSN 1318-0010 (Letn. 33, št. 3/4, maj-avg. 1999, str. 193-200)
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Hrovat, Marko, 1948-2023 | 03219 |
Holc, Janez | 06423 |
Bernik, Slavko | 06627 |
Source: Personal bibliographies
and: SICRIS
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