Proton conducting ceramics for use in intermediate temperature proton conducting fuel cells

D  Browning; M  Weston; J B  Lakeman; P  Jones; M  Cherry; J T S  Irvine; D J D  Corcoran

Proton conducting ceramics for use in intermediate temperature proton conducting fuel cells

D Browning, M Weston, J B Lakeman, P Jones, M Cherry, J T S Irvine, D J D Corcoran

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

Abstract

A new proton conducting perovskite material Sr3CaZr0.9Ta1.1O8.55 (SCZT) was synthesised and the mode of conduction elucidated through modelling. The changes in protonic conductivity underfuel cell conditions were examined using AC impedance techniques and a test fuel cell was constructed. The material proved less conductive than the standard BaCe0.95 Y0.05O2.975 material but was more stable under reformate conditions. The maximum power output generated by the SCZT85 cell was 0.2m/W/cm(2) at 600degreesC although this was for an electrolyte considerably thicker (1.5 mm) than would be used in an actual cell.

Original language	English
Pages (from-to)	25-30
Number of pages	6
Journal	Journal of New Materials for Electrochemical Systems
Volume	5
Issue number	1
Publication status	Published - Jan 2002

Keywords

intermediate proton conducting
ceramics
fuel cell
materials
construction
SOFC
PEROVSKITE OXIDES

Cite this

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abstract = "A new proton conducting perovskite material Sr3CaZr0.9Ta1.1O8.55 (SCZT) was synthesised and the mode of conduction elucidated through modelling. The changes in protonic conductivity underfuel cell conditions were examined using AC impedance techniques and a test fuel cell was constructed. The material proved less conductive than the standard BaCe0.95 Y0.05O2.975 material but was more stable under reformate conditions. The maximum power output generated by the SCZT85 cell was 0.2m/W/cm(2) at 600degreesC although this was for an electrolyte considerably thicker (1.5 mm) than would be used in an actual cell.",

keywords = "intermediate proton conducting, ceramics, fuel cell, materials, construction, SOFC, PEROVSKITE OXIDES",

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T1 - Proton conducting ceramics for use in intermediate temperature proton conducting fuel cells

AU - Browning, D

AU - Weston, M

AU - Lakeman, J B

AU - Jones, P

AU - Cherry, M

AU - Irvine, J T S

AU - Corcoran, D J D

PY - 2002/1

Y1 - 2002/1

N2 - A new proton conducting perovskite material Sr3CaZr0.9Ta1.1O8.55 (SCZT) was synthesised and the mode of conduction elucidated through modelling. The changes in protonic conductivity underfuel cell conditions were examined using AC impedance techniques and a test fuel cell was constructed. The material proved less conductive than the standard BaCe0.95 Y0.05O2.975 material but was more stable under reformate conditions. The maximum power output generated by the SCZT85 cell was 0.2m/W/cm(2) at 600degreesC although this was for an electrolyte considerably thicker (1.5 mm) than would be used in an actual cell.

AB - A new proton conducting perovskite material Sr3CaZr0.9Ta1.1O8.55 (SCZT) was synthesised and the mode of conduction elucidated through modelling. The changes in protonic conductivity underfuel cell conditions were examined using AC impedance techniques and a test fuel cell was constructed. The material proved less conductive than the standard BaCe0.95 Y0.05O2.975 material but was more stable under reformate conditions. The maximum power output generated by the SCZT85 cell was 0.2m/W/cm(2) at 600degreesC although this was for an electrolyte considerably thicker (1.5 mm) than would be used in an actual cell.

KW - intermediate proton conducting

KW - ceramics

KW - fuel cell

KW - materials

KW - construction

KW - SOFC

KW - PEROVSKITE OXIDES

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M3 - Article

SN - 1480-2422

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JO - Journal of New Materials for Electrochemical Systems

JF - Journal of New Materials for Electrochemical Systems

IS - 1

ER -

Proton conducting ceramics for use in intermediate temperature proton conducting fuel cells

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