NDLI: Titania doped YSZ for SOFC anode Ni-cermet

Content Provider	Springer Nature Link
Author	Skarmoutsos, D. Nikolopoulos, P. Tsoga, A.
Copyright Year	1999
Abstract	The influence of doping YSZ (8 mol%YttriaStabilizedZirconia) with 5 and 10 mol% TiO$_{2}$ on the electrical conductivity and the microstructure was examined for different YSZ-Ni cermets as a function of Ni-content. For the 5 mol%TiO$_{2}$-doped cermets the electrical conductivity was always better than that of the undoped, exhibiting a lower degradation rate at 1000 °C. Microstructure examination of the samples showed a lower tendency for agglomeration of the Ni-particles of the doped cermets compared to the Ni/YSZ cermet. The 10 mol%TiO$_{2}$-doped cermets exhibited lower conductivity values and this was attributed to the significantly higher porosity which resulted from a reaction taking place during sintering between the insoluble TiO$_{2}$ in YSZ and NiO. This reaction results in the formation of a NiO-TiO$_{2}$ spinel phase, which leads to the expansion of the samples causing microstructural defects.
Starting Page	455
Ending Page	459
Page Count	5
File Format	PDF
ISSN	09477047
Journal	Ionics
Volume Number	5
Issue Number	5-6
e-ISSN	18620760
Language	English
Publisher	Springer-Verlag
Publisher Date	1999-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biomedicine general Analytical Chemistry Physical Chemistry Electrochemistry Optical and Electronic Materials
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Engineering Materials Science Chemical Engineering

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