Wet chemical synthesis and characterisation of Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3 − δ proton conductor

M. Naeem Khan; C. D. Savaniu; A. K. Azad; Peter Hing; J. T. S. Irvine

doi:10.1016/j.ssi.2017.01.001

Wet chemical synthesis and characterisation of Ba_0.5Sr_0.5Ce_0.6Zr_0.2Gd_0.1Y_0.1O_{3 − δ} proton conductor

M. Naeem Khan, C. D. Savaniu, A. K. Azad, Peter Hing, J. T. S. Irvine

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

Abstract

Ba_0.5Sr_0.5Ce_0.6Zr_0.2Gd_0.1Y_0.1O_{3 − δ} (BSCZGY) proton conducting electrolyte material for intermediate temperature solid oxide fuel cells (IT-SOFCs) has been synthesized by a sol-gel modified Pechini process and its sinterability, thermal expansion, microstructure, ionic conductivity and chemical stability have been investigated. Ionic conductivity at 700 °C was measured to be ~ 8 × 10^{− 3} S cm^{− 1} in wet 5 vol.% H₂/Ar atmospheres. Chemical stability test in pure CO₂ up to 1200 °C shows that the material is highly stable; better than the stability of BaZr_0.3Ce_0.5Y_0.1Yb_0.1O_{3 − δ}.

Original language	English
Pages (from-to)	52-57
Number of pages	6
Journal	Solid State Ionics
Volume	303
Early online date	21 Feb 2017
DOIs	https://doi.org/10.1016/j.ssi.2017.01.001
Publication status	Published - May 2017

Keywords

Sol-gel modified Pechini process
Sinterability
Ionic conductivity
Chemical stability

Access to Document

10.1016/j.ssi.2017.01.001

Naeem_2017_SSI_WetChemical_AAM
Crown Copyright © 2017 Published by Elsevier B.V. All rights reserved. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at: https://doi.org/10.1016/j.ssi.2017.01.001
Accepted author manuscript, 696 KBLicence: CC BY-NC-ND

Cite this

@article{551cb568ac7f4a8a96929adfae5d2148,

title = "Wet chemical synthesis and characterisation of Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3 − δ proton conductor",

abstract = "Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3 − δ (BSCZGY) proton conducting electrolyte material for intermediate temperature solid oxide fuel cells (IT-SOFCs) has been synthesized by a sol-gel modified Pechini process and its sinterability, thermal expansion, microstructure, ionic conductivity and chemical stability have been investigated. Ionic conductivity at 700 °C was measured to be ~ 8 × 10− 3 S cm− 1 in wet 5 vol.% H2/Ar atmospheres. Chemical stability test in pure CO2 up to 1200 °C shows that the material is highly stable; better than the stability of BaZr0.3Ce0.5Y0.1Yb0.1O3 − δ.",

keywords = "Sol-gel modified Pechini process, Sinterability, Ionic conductivity, Chemical stability",

author = "{Naeem Khan}, M. and Savaniu, {C. D.} and Azad, {A. K.} and Peter Hing and Irvine, {J. T. S.}",

note = "M. N. Khan would like to thank University of Brunei Darussalam for a Graduate Research Scholarship. L.C. Lim and P. Hing thank UBD, and Government of Brunei Darussalam (S&T 17) for a generous research grant under the UBD Energy programme.",

year = "2017",

month = may,

doi = "10.1016/j.ssi.2017.01.001",

language = "English",

volume = "303",

pages = "52--57",

journal = "Solid State Ionics",

issn = "0167-2738",

publisher = "Elsevier",

}

TY - JOUR

T1 - Wet chemical synthesis and characterisation of Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3 − δ proton conductor

AU - Naeem Khan, M.

AU - Savaniu, C. D.

AU - Azad, A. K.

AU - Hing, Peter

AU - Irvine, J. T. S.

N1 - M. N. Khan would like to thank University of Brunei Darussalam for a Graduate Research Scholarship. L.C. Lim and P. Hing thank UBD, and Government of Brunei Darussalam (S&T 17) for a generous research grant under the UBD Energy programme.

PY - 2017/5

Y1 - 2017/5

N2 - Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3 − δ (BSCZGY) proton conducting electrolyte material for intermediate temperature solid oxide fuel cells (IT-SOFCs) has been synthesized by a sol-gel modified Pechini process and its sinterability, thermal expansion, microstructure, ionic conductivity and chemical stability have been investigated. Ionic conductivity at 700 °C was measured to be ~ 8 × 10− 3 S cm− 1 in wet 5 vol.% H2/Ar atmospheres. Chemical stability test in pure CO2 up to 1200 °C shows that the material is highly stable; better than the stability of BaZr0.3Ce0.5Y0.1Yb0.1O3 − δ.

AB - Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3 − δ (BSCZGY) proton conducting electrolyte material for intermediate temperature solid oxide fuel cells (IT-SOFCs) has been synthesized by a sol-gel modified Pechini process and its sinterability, thermal expansion, microstructure, ionic conductivity and chemical stability have been investigated. Ionic conductivity at 700 °C was measured to be ~ 8 × 10− 3 S cm− 1 in wet 5 vol.% H2/Ar atmospheres. Chemical stability test in pure CO2 up to 1200 °C shows that the material is highly stable; better than the stability of BaZr0.3Ce0.5Y0.1Yb0.1O3 − δ.

KW - Sol-gel modified Pechini process

KW - Sinterability

KW - Ionic conductivity

KW - Chemical stability

U2 - 10.1016/j.ssi.2017.01.001

DO - 10.1016/j.ssi.2017.01.001

M3 - Article

SN - 0167-2738

VL - 303

SP - 52

EP - 57

JO - Solid State Ionics

JF - Solid State Ionics

ER -