Fabrication and characterization of easily sintered and stable anode-supported proton-conducting membranes

Lei Bi; Zetian Tao; Cong Liu; Wenping Sun; Haiqian Wang; Wei Liu

doi:10.1016/j.memsci.2009.03.042

Fabrication and characterization of easily sintered and stable anode-supported proton-conducting membranes

Lei Bi, Zetian Tao, Cong Liu, Wenping Sun, Haiqian Wang, Wei Liu^*

^*Corresponding author for this work

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

58 Scopus citations

Abstract

Proton-conducting BaCeO₃ membranes with different In-doping levels (from 10 to 30%) were fabricated on NiO-based anode substrates. Indium, which was only used as a trivalent element to create oxygen vacancies in BaCeO₃ previously, was found to have the function of stabilizing BaCeO₃ in this study. The In-doped BaCeO₃ showed improved chemical stability against CO₂, while even the traditional BaCeO₃ substituting with a small amount of Zr decomposed in the same environment. Furthermore, unlike other strategies for stabilizing BaCeO₃, the supported In-doped BaCeO₃ membrane became dense after firing at relatively low temperatures. We also investigated the influences of the sintering temperatures and the In-doping levels on the densification and the electrical properties of the supported BaCeO₃ membranes, which revealed that the In-doping strategy increased both the chemical stability and sinterability for BaCeO₃ with little loss of electrical performance.

Original language	English (US)
Pages (from-to)	1-6
Number of pages	6
Journal	Journal of Membrane Science
Volume	336
Issue number	1-2
DOIs	https://doi.org/10.1016/j.memsci.2009.03.042
State	Published - Jul 1 2009
Externally published	Yes

Keywords

BaCeO
Chemical stability
Proton conductor
Sinterability
Supported membrane

ASJC Scopus subject areas

Biochemistry
General Materials Science
Physical and Theoretical Chemistry
Filtration and Separation

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10.1016/j.memsci.2009.03.042

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@article{02832218e29a4611aa86e902dbc1d1b1,

title = "Fabrication and characterization of easily sintered and stable anode-supported proton-conducting membranes",

abstract = "Proton-conducting BaCeO3 membranes with different In-doping levels (from 10 to 30%) were fabricated on NiO-based anode substrates. Indium, which was only used as a trivalent element to create oxygen vacancies in BaCeO3 previously, was found to have the function of stabilizing BaCeO3 in this study. The In-doped BaCeO3 showed improved chemical stability against CO2, while even the traditional BaCeO3 substituting with a small amount of Zr decomposed in the same environment. Furthermore, unlike other strategies for stabilizing BaCeO3, the supported In-doped BaCeO3 membrane became dense after firing at relatively low temperatures. We also investigated the influences of the sintering temperatures and the In-doping levels on the densification and the electrical properties of the supported BaCeO3 membranes, which revealed that the In-doping strategy increased both the chemical stability and sinterability for BaCeO3 with little loss of electrical performance.",

keywords = "BaCeO, Chemical stability, Proton conductor, Sinterability, Supported membrane",

author = "Lei Bi and Zetian Tao and Cong Liu and Wenping Sun and Haiqian Wang and Wei Liu",

year = "2009",

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doi = "10.1016/j.memsci.2009.03.042",

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T1 - Fabrication and characterization of easily sintered and stable anode-supported proton-conducting membranes

AU - Bi, Lei

AU - Tao, Zetian

AU - Liu, Cong

AU - Sun, Wenping

AU - Wang, Haiqian

AU - Liu, Wei

PY - 2009/7/1

Y1 - 2009/7/1

N2 - Proton-conducting BaCeO3 membranes with different In-doping levels (from 10 to 30%) were fabricated on NiO-based anode substrates. Indium, which was only used as a trivalent element to create oxygen vacancies in BaCeO3 previously, was found to have the function of stabilizing BaCeO3 in this study. The In-doped BaCeO3 showed improved chemical stability against CO2, while even the traditional BaCeO3 substituting with a small amount of Zr decomposed in the same environment. Furthermore, unlike other strategies for stabilizing BaCeO3, the supported In-doped BaCeO3 membrane became dense after firing at relatively low temperatures. We also investigated the influences of the sintering temperatures and the In-doping levels on the densification and the electrical properties of the supported BaCeO3 membranes, which revealed that the In-doping strategy increased both the chemical stability and sinterability for BaCeO3 with little loss of electrical performance.

AB - Proton-conducting BaCeO3 membranes with different In-doping levels (from 10 to 30%) were fabricated on NiO-based anode substrates. Indium, which was only used as a trivalent element to create oxygen vacancies in BaCeO3 previously, was found to have the function of stabilizing BaCeO3 in this study. The In-doped BaCeO3 showed improved chemical stability against CO2, while even the traditional BaCeO3 substituting with a small amount of Zr decomposed in the same environment. Furthermore, unlike other strategies for stabilizing BaCeO3, the supported In-doped BaCeO3 membrane became dense after firing at relatively low temperatures. We also investigated the influences of the sintering temperatures and the In-doping levels on the densification and the electrical properties of the supported BaCeO3 membranes, which revealed that the In-doping strategy increased both the chemical stability and sinterability for BaCeO3 with little loss of electrical performance.

KW - BaCeO

KW - Chemical stability

KW - Proton conductor

KW - Sinterability

KW - Supported membrane

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U2 - 10.1016/j.memsci.2009.03.042

DO - 10.1016/j.memsci.2009.03.042

M3 - Article

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SN - 0376-7388

VL - 336

SP - 1

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JO - Journal of Membrane Science

JF - Journal of Membrane Science

IS - 1-2

ER -

Fabrication and characterization of easily sintered and stable anode-supported proton-conducting membranes

Abstract

Keywords

ASJC Scopus subject areas

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