Electrical conductivity of the proton conductor BaZr0.9Y0.1O3-δ obtained by high temperature annealing

S. B.C. Duval; P. Holtappels; U. F. Vogt; E. Pomjakushina; K. Conder; U. Stimming; T. Graule

doi:10.1016/j.ssi.2007.08.006

Electrical conductivity of the proton conductor BaZr_0.9Y_0.1O_3-δ obtained by high temperature annealing

S. B.C. Duval, P. Holtappels, U. F. Vogt, E. Pomjakushina, K. Conder, U. Stimming, T. Graule

Department of Physics

Research output: Contribution to journal › Article › peer-review

127 Scopus citations

Abstract

The influence of a high temperature annealing (∼ 2200 °C) on the microstructure and the electrical properties of BaZr_0.9Y_0.1O_3-δ has been examined. The high temperature annealing was achieved using an optical floating zone furnace. The obtained sample is homogeneous with an average grain size of about 5 μm. No additional phases were found in the XRD pattern and the structure was identified to be cubic. After the high temperature annealing, the grain boundary conductivity is increased by approximately two orders of magnitude, while the bulk conductivity remains the same.

Original language	English
Pages (from-to)	1437-1441
Number of pages	5
Journal	Solid State Ionics
Volume	178
Issue number	25-26
DOIs	https://doi.org/10.1016/j.ssi.2007.08.006
State	Published - Oct 2007

Keywords

BZY
Grain boundary
Optical floating zone
Perovskite
Proton conductor

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10.1016/j.ssi.2007.08.006

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title = "Electrical conductivity of the proton conductor BaZr0.9Y0.1O3-δ obtained by high temperature annealing",

abstract = "The influence of a high temperature annealing (∼ 2200 °C) on the microstructure and the electrical properties of BaZr0.9Y0.1O3-δ has been examined. The high temperature annealing was achieved using an optical floating zone furnace. The obtained sample is homogeneous with an average grain size of about 5 μm. No additional phases were found in the XRD pattern and the structure was identified to be cubic. After the high temperature annealing, the grain boundary conductivity is increased by approximately two orders of magnitude, while the bulk conductivity remains the same.",

keywords = "BZY, Grain boundary, Optical floating zone, Perovskite, Proton conductor",

author = "Duval, {S. B.C.} and P. Holtappels and Vogt, {U. F.} and E. Pomjakushina and K. Conder and U. Stimming and T. Graule",

year = "2007",

month = oct,

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language = "English",

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T1 - Electrical conductivity of the proton conductor BaZr0.9Y0.1O3-δ obtained by high temperature annealing

AU - Duval, S. B.C.

AU - Holtappels, P.

AU - Vogt, U. F.

AU - Pomjakushina, E.

AU - Conder, K.

AU - Stimming, U.

AU - Graule, T.

PY - 2007/10

Y1 - 2007/10

N2 - The influence of a high temperature annealing (∼ 2200 °C) on the microstructure and the electrical properties of BaZr0.9Y0.1O3-δ has been examined. The high temperature annealing was achieved using an optical floating zone furnace. The obtained sample is homogeneous with an average grain size of about 5 μm. No additional phases were found in the XRD pattern and the structure was identified to be cubic. After the high temperature annealing, the grain boundary conductivity is increased by approximately two orders of magnitude, while the bulk conductivity remains the same.

AB - The influence of a high temperature annealing (∼ 2200 °C) on the microstructure and the electrical properties of BaZr0.9Y0.1O3-δ has been examined. The high temperature annealing was achieved using an optical floating zone furnace. The obtained sample is homogeneous with an average grain size of about 5 μm. No additional phases were found in the XRD pattern and the structure was identified to be cubic. After the high temperature annealing, the grain boundary conductivity is increased by approximately two orders of magnitude, while the bulk conductivity remains the same.

KW - BZY

KW - Grain boundary

KW - Optical floating zone

KW - Perovskite

KW - Proton conductor

UR - http://www.scopus.com/inward/record.url?scp=35449005226&partnerID=8YFLogxK

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DO - 10.1016/j.ssi.2007.08.006

M3 - Article

AN - SCOPUS:35449005226

SN - 0167-2738

VL - 178

SP - 1437

EP - 1441

JO - Solid State Ionics

JF - Solid State Ionics

IS - 25-26

ER -

Electrical conductivity of the proton conductor BaZr_0.9Y_0.1O_3-δ obtained by high temperature annealing

Abstract

Keywords

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