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  • Preparation of NiO/YSZ powders using a Pechini-type method = Priprava NiO/YSZ prahov s prilagojeno Pechini metodo
    Razpotnik, Tanja ; Francetič, Vojmir ; Maček, Jadran
    Nickel-oxide-yitria-stabilized zirconia (NiO-YSZ) powder mixtures were prepared using a Pechini-type sol-gel route. Metal chlorides/nitrates and citric or ascorbic acid were used to prepare the ... metal-carboxylic acid complexes. Their subsequent polyesterification with ethylene glycol at moderate temperatures yielded a homogeneous polymer resin. During the thermal treatment of such a 3D resin up to 900 [compositum]C metal oxides were formed. In order to optimize the process the influence of the anionic part of the complexing, e.g., carboxylic acid, and the ethylene glycol was studied. The properties of the as-synthesized powders were determined using X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), and BET surface area analysis. The sintering behaviour of the sample powder mixtures was studied with a heating microscope. The selection of metal chlorides or nitrates for precursors as well as the variations in the molar ratios of all the starting components affected the cross-linking within the polymer and also the characteristics of the NiO/YSZ products. Their properties determine whether they are suitable as anodic materials for solid-oxide fuel cells.
    Vir: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 40, št. 2, mar.-apr. 2006, str. 69-72)
    Vrsta gradiva - članek, sestavni del
    Leto - 2006
    Jezik - angleški
    COBISS.SI-ID - 424874

    Povezava(-e):

    Digitalna knjižnica Slovenije - dLib.si

vir: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 40, št. 2, mar.-apr. 2006, str. 69-72)

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