The defect structure of the double layer in yttria-stabilised zirconia

M.G.H.M. Hendriks; Johan E. ten Elshof; Henricus J.M. Bouwmeester; H. Verweij

doi:10.1016/S0167-2738(02)00484-8

The defect structure of the double layer in yttria-stabilised zirconia

M.G.H.M. Hendriks, Johan E. ten Elshof, Henricus J.M. Bouwmeester, H. Verweij

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Abstract

The space charge density of 2–10 mol% yttria-stabilised zirconia (YSZ) at the interface with a gold electrode was determined from differential capacity measurements at 748–848 K. The oxygen vacancy fraction in the space charge layer was calculated as function of bias potential, temperature and composition by fitting the data at positive bias potential to a Boltzmann-type equation. The vacancy concentration in the space charge layer increases with decreasing bias potential and reaches a temperature-dependent maximum. This behaviour can be understood under the assumption that only a fraction of the oxygen sub-lattice is available for oxygen vacancy distribution. This volume fraction increases with temperature, with an associated thermal activation energy in the range of 0.27 to 0.46 eV, depending on composition.

Original language	Undefined
Pages (from-to)	467-472
Journal	Solid state ionics
Volume	154-155
DOIs	https://doi.org/10.1016/S0167-2738(02)00484-8
Publication status	Published - 2002

Keywords

METIS-209121
IR-72244

Access to Document

10.1016/S0167-2738(02)00484-8

Cite this

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title = "The defect structure of the double layer in yttria-stabilised zirconia",

abstract = "The space charge density of 2–10 mol% yttria-stabilised zirconia (YSZ) at the interface with a gold electrode was determined from differential capacity measurements at 748–848 K. The oxygen vacancy fraction in the space charge layer was calculated as function of bias potential, temperature and composition by fitting the data at positive bias potential to a Boltzmann-type equation. The vacancy concentration in the space charge layer increases with decreasing bias potential and reaches a temperature-dependent maximum. This behaviour can be understood under the assumption that only a fraction of the oxygen sub-lattice is available for oxygen vacancy distribution. This volume fraction increases with temperature, with an associated thermal activation energy in the range of 0.27 to 0.46 eV, depending on composition.",

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author = "M.G.H.M. Hendriks and {ten Elshof}, {Johan E.} and Bouwmeester, {Henricus J.M.} and H. Verweij",

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journal = "Solid state ionics",

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T1 - The defect structure of the double layer in yttria-stabilised zirconia

AU - Hendriks, M.G.H.M.

AU - ten Elshof, Johan E.

AU - Bouwmeester, Henricus J.M.

AU - Verweij, H.

PY - 2002

Y1 - 2002

N2 - The space charge density of 2–10 mol% yttria-stabilised zirconia (YSZ) at the interface with a gold electrode was determined from differential capacity measurements at 748–848 K. The oxygen vacancy fraction in the space charge layer was calculated as function of bias potential, temperature and composition by fitting the data at positive bias potential to a Boltzmann-type equation. The vacancy concentration in the space charge layer increases with decreasing bias potential and reaches a temperature-dependent maximum. This behaviour can be understood under the assumption that only a fraction of the oxygen sub-lattice is available for oxygen vacancy distribution. This volume fraction increases with temperature, with an associated thermal activation energy in the range of 0.27 to 0.46 eV, depending on composition.

AB - The space charge density of 2–10 mol% yttria-stabilised zirconia (YSZ) at the interface with a gold electrode was determined from differential capacity measurements at 748–848 K. The oxygen vacancy fraction in the space charge layer was calculated as function of bias potential, temperature and composition by fitting the data at positive bias potential to a Boltzmann-type equation. The vacancy concentration in the space charge layer increases with decreasing bias potential and reaches a temperature-dependent maximum. This behaviour can be understood under the assumption that only a fraction of the oxygen sub-lattice is available for oxygen vacancy distribution. This volume fraction increases with temperature, with an associated thermal activation energy in the range of 0.27 to 0.46 eV, depending on composition.

KW - METIS-209121

KW - IR-72244

U2 - 10.1016/S0167-2738(02)00484-8

DO - 10.1016/S0167-2738(02)00484-8

M3 - Article

SN - 0167-2738

VL - 154-155

SP - 467

EP - 472

JO - Solid state ionics

JF - Solid state ionics

ER -