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Sinteza maghemita iz železovega oksalata : diplomsko deloVučko, Maja, 1984-Namen diplomskega dela je raziskati sintezo nano palčk železovega oksalata dihidrata, FeC2O4 % 2 H2O in njegovo pretvorbo v maghemit, % % Fe2O3, preko kontroliranega termičnega razkroja. Pri reakciji ... smo uporabili anionski surfaktant AOT, ki je pomemben za kontroliranje oblike in velikosti produktov. Pripravili smo dve identični raztopini. AOT je bil najprej raztopljen v mešanih raztopinah, sestavljenih iz etilenglikola, C2H4(OH)2, in destilirane vode, H2O. Raztopini smo mešali 30 minut. Pripravljenima identičnima raztopinama smo dodali amonij železov (II) sulfat heksahidrat, (NH4)2Fe(SO4)2 % 6 H2O, in natrijev oksalat, Na2C2O4 ter mešali 20 minut. Ti dve raztopini sta bili počasi premešani skupaj z nadaljnjim mešanjem pri sobni temperaturi. Po koncu reakcije smo usedlino železovega oksalata dihidrata, FeC2O4 % 2 H2O, zbirali s centrifugiranjem, sprali z destilirano vodo in etanolom ter končno sušili. Iz dobljenega železovega oksalata dihidrata, smo pripravili maghemit s segrevanjem na temperaturo 400 °C, s hitrostjo 2 K/min v dušikovi atmosferi. Produkte smo karakterizirali z rentgensko praškovno difrakcijo (XRD). Dobili smo želene produkte, vendar so bile ponekod prisotne primesi. Izbrane vzorce smo karakterizirali tudi s transmisijsko elektronsko mikroskopijo.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Maribor : [M. Vučko], 2009Language - slovenianCOBISS.SI-ID - 16790536
Author
Vučko, Maja, 1984-
Other authors
Kristl, Matjaž |
Drofenik, Mihael
Topics
Univerzitetna in visokošolska dela |
kemija |
nanopalčke |
železov oksalat |
centrifuga |
rentgen |
termogravimetrija |
maghemit |
mikroskopija |
diplomska dela
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D DIPL 0000000054 VUČKO M. Sinteza IN: 920090036 D DIPL 54 VUČKO M. Sinteza IN: 920090036 |
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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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Vučko, Maja, 1984- | ![]() |
Kristl, Matjaž | 14755 |
Drofenik, Mihael | 01360 |
Source: Personal bibliographies
and: SICRIS
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