Journal ArticleDOI
Effect of Nb2O5 on the space-charge conduction of Y2O3-stabilized ZrO21
TLDR
In this article, up to 1.5 mol% Nb 2 O 5 was added to 9 mol% Y 2 O 3 -stabilized ZrO 2, and the resistances were measured by the complex impedance approach in air.About:
This article is published in Solid State Ionics.The article was published on 1997-08-01. It has received 35 citations till now. The article focuses on the topics: Grain boundary.read more
Citations
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Journal ArticleDOI
Progress in material selection for solid oxide fuel cell technology: A review
TL;DR: In this paper, the authors provide a comprehensive review with respect to the structure, chemistry, design and selection of materials, underlying mechanisms, and performance of each SOFC component, and it opens up the future directions towards pursuing SOFC research.
Journal ArticleDOI
Grain Boundary Blocking Effect in Zirconia: A Schottky Barrier Analysis
Xin Guo,Joachim Maier +1 more
TL;DR: In this paper, the grain boundary electrical properties of high purity ZrO 2 ceramic materials doped with 2, 3, and 8 mol % Y 2 O 3, and with 0.4 mol % Al 2 O3 were theoretically analyzed in the temperature range of 200 to 500°C.
Journal ArticleDOI
A brief review of the ionic conductivity enhancement for selected oxide electrolytes
Shiqiang (Rob) Hui,Justin Roller,Sing Yick,Xinge Zhang,Cyrille Decès-Petit,Yongsong Xie,Radenka Maric,Dave Ghosh +7 more
TL;DR: In this paper, a review of various approaches to enhance the ionic conductivity of polycrystalline zirconia-and ceria-based oxide electrolytes in light of composition, microstructure, and processing is presented.
Journal ArticleDOI
Optical properties of transparent nanocrystalline yttria stabilized zirconia
TL;DR: The optical properties of transparent nanocrystalline zirconia produced using a current activated method were characterized over the entire visible spectrum as mentioned in this paper, and the resolutions of the samples were characterized using standard resolution targets.
Journal ArticleDOI
Hollow microspheres Mg-doped ZrO2 nanoparticles: Green assisted synthesis and applications in photocatalysis and photoluminescence
L. Renuka,K.S. Anantharaju,S.C. Sharma,H.P. Nagaswarupa,S.C. Prashantha,H. Nagabhushana,Y.S. Vidya +6 more
TL;DR: In this paper, the effect of Mg doping and Aloe Vera gel concentration on phase formation, morphology and optical properties of the nanoparticles were investigated for the degradation of Rhodamine B under UV light.
References
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Journal ArticleDOI
Grain Size Control of Tetragonal Zirconia Polycrystals Using the Space Charge Concept
Shyh-Lung Hwang,I-Wei Chen +1 more
TL;DR: Grain growth kinetics and grain-boundary segregation of tetragonal zircoda polycrystals containing divalent to pentavalent cationic dopants were studied in this article.
Journal ArticleDOI
Physical origin of the intrinsic grain-boundary resistivity of stabilized-zirconia: Role of the space-charge layers
TL;DR: In this article, the intrinsic grain-boundary resistivity in stabilized-ZrO 2 was considered to originate from the V O depletion in the space-charge layers, and a model was developed.
Journal ArticleDOI
Space charge, elastic field, and dipole contributions to equilibrium solute segregation at interfaces
TL;DR: In this article, the minimum free energy and the equilibrium solute and defect distributions in the grain-boundary region were evaluated. And the authors identified the interaction potentials between solute ions and grain boundaries.
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Space Charge Segregation at Grain Boundaries in Titanium Dioxide: I, Relationship between Lattice Defect Chemistry and Space Charge Potential
TL;DR: In this paper, the authors derived the electrical potential difference between the interface and the bulk in TiO2 as a function of temperature, oxygen pressure, and acceptor or donor doping from a space charge model that explicitly includes the high-temperature lattice defect chemistry.
Journal ArticleDOI
Space-charge conduction in yttria and alumina codoped-zirconia 1
TL;DR: According to a space charge theory analysis, the space-charge potential of the Y 2O 3 and Al 2 O 3-codoped ZrO 2 is negative, which is the result of an Al′ Zr segregation and a V ǫ depletion in the space charge layers.