Synthesis and conductivity behaviour of proton conducting (1−x)Ba0.6Sr0.4Ce0.75Zr0.10Y0.15O3−δ-xGDC (x=0, 0.2, 0.5) composite electrolytes

Shivendra K. Jaiswal; Jongsup Hong; Kyung J. Yoon; Ji Won Son; Jong Ho Lee

doi:10.1111/jace.15005

Synthesis and conductivity behaviour of proton conducting (1−x)Ba_0.6Sr_0.4Ce_0.75Zr_0.10Y_0.15O_3−δ-xGDC (x=0, 0.2, 0.5) composite electrolytes

Shivendra K. Jaiswal, Jongsup Hong, Kyung J. Yoon, Ji Won Son, Jong Ho Lee

Department of Mechanical Engineering

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

6 Citations (Scopus)

Abstract

An attempt has been made here to synthesize (1−x)Ba_0.6Sr_0.4CZY-xGDC (x=0, 0.2, 0.5) composite electrolytes and investigated their phase(s), X-ray photo spectra (XPS) and conduction properties. All compositions possess dual phases (perovskite-type as well as cubic fluorite structure) and show proton conduction in various atmospheres. Homogeneous formation and compatibility between phases have been confirmed from X-ray diffraction analysis. Detailed X-ray photoelectron spectroscopy (XPS) studies on the oxidation states of barium, strontium, gadolinium, cerium, zirconium, yttrium, and oxygen was performed. With increasing “x”, oxygen vacancy concentration increases as cerium ions in 4+ oxidation state decreases. The conduction behavior of composites depicts the protonic in nature and total activation energy lying in the range of 0.16-0.24 eV. This study indicates that the conductivity increases with GDC content in composite electrolytes and highest conductivity is found for composite with x=0.5. These characteristics are useful to make (1−x)Ba_0.6Sr_0.4CZY-xGDC composite electrolytes as promising candidate of central membrane for advanced fuel cell technology.

Original language	English
Pages (from-to)	4710-4718
Number of pages	9
Journal	Journal of the American Ceramic Society
Volume	100
Issue number	10
DOIs	https://doi.org/10.1111/jace.15005
Publication status	Published - 2017 Oct

Bibliographical note

Funding Information:
This research was financially supported by the institutional research program of the Korea Institute of Science and Technology and the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Trade, Industry and Energy, Korea (No. 10050985).

Publisher Copyright:
© 2017 The American Ceramic Society

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

Access to Document

10.1111/jace.15005

Cite this

@article{7b3d7fc4ae594f5eaf39a8b89ace8c37,

title = "Synthesis and conductivity behaviour of proton conducting (1−x)Ba0.6Sr0.4Ce0.75Zr0.10Y0.15O3−δ-xGDC (x=0, 0.2, 0.5) composite electrolytes",

abstract = "An attempt has been made here to synthesize (1−x)Ba0.6Sr0.4CZY-xGDC (x=0, 0.2, 0.5) composite electrolytes and investigated their phase(s), X-ray photo spectra (XPS) and conduction properties. All compositions possess dual phases (perovskite-type as well as cubic fluorite structure) and show proton conduction in various atmospheres. Homogeneous formation and compatibility between phases have been confirmed from X-ray diffraction analysis. Detailed X-ray photoelectron spectroscopy (XPS) studies on the oxidation states of barium, strontium, gadolinium, cerium, zirconium, yttrium, and oxygen was performed. With increasing “x”, oxygen vacancy concentration increases as cerium ions in 4+ oxidation state decreases. The conduction behavior of composites depicts the protonic in nature and total activation energy lying in the range of 0.16-0.24 eV. This study indicates that the conductivity increases with GDC content in composite electrolytes and highest conductivity is found for composite with x=0.5. These characteristics are useful to make (1−x)Ba0.6Sr0.4CZY-xGDC composite electrolytes as promising candidate of central membrane for advanced fuel cell technology.",

author = "Jaiswal, {Shivendra K.} and Jongsup Hong and Yoon, {Kyung J.} and Son, {Ji Won} and Lee, {Jong Ho}",

note = "Funding Information: This research was financially supported by the institutional research program of the Korea Institute of Science and Technology and the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Trade, Industry and Energy, Korea (No. 10050985). Publisher Copyright: {\textcopyright} 2017 The American Ceramic Society",

year = "2017",

month = oct,

doi = "10.1111/jace.15005",

language = "English",

volume = "100",

pages = "4710--4718",

journal = "Journal of the American Ceramic Society",

issn = "0002-7820",

publisher = "Wiley-Blackwell",

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T1 - Synthesis and conductivity behaviour of proton conducting (1−x)Ba0.6Sr0.4Ce0.75Zr0.10Y0.15O3−δ-xGDC (x=0, 0.2, 0.5) composite electrolytes

AU - Jaiswal, Shivendra K.

AU - Hong, Jongsup

AU - Yoon, Kyung J.

AU - Son, Ji Won

AU - Lee, Jong Ho

N1 - Funding Information: This research was financially supported by the institutional research program of the Korea Institute of Science and Technology and the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Trade, Industry and Energy, Korea (No. 10050985). Publisher Copyright: © 2017 The American Ceramic Society

PY - 2017/10

Y1 - 2017/10

N2 - An attempt has been made here to synthesize (1−x)Ba0.6Sr0.4CZY-xGDC (x=0, 0.2, 0.5) composite electrolytes and investigated their phase(s), X-ray photo spectra (XPS) and conduction properties. All compositions possess dual phases (perovskite-type as well as cubic fluorite structure) and show proton conduction in various atmospheres. Homogeneous formation and compatibility between phases have been confirmed from X-ray diffraction analysis. Detailed X-ray photoelectron spectroscopy (XPS) studies on the oxidation states of barium, strontium, gadolinium, cerium, zirconium, yttrium, and oxygen was performed. With increasing “x”, oxygen vacancy concentration increases as cerium ions in 4+ oxidation state decreases. The conduction behavior of composites depicts the protonic in nature and total activation energy lying in the range of 0.16-0.24 eV. This study indicates that the conductivity increases with GDC content in composite electrolytes and highest conductivity is found for composite with x=0.5. These characteristics are useful to make (1−x)Ba0.6Sr0.4CZY-xGDC composite electrolytes as promising candidate of central membrane for advanced fuel cell technology.

AB - An attempt has been made here to synthesize (1−x)Ba0.6Sr0.4CZY-xGDC (x=0, 0.2, 0.5) composite electrolytes and investigated their phase(s), X-ray photo spectra (XPS) and conduction properties. All compositions possess dual phases (perovskite-type as well as cubic fluorite structure) and show proton conduction in various atmospheres. Homogeneous formation and compatibility between phases have been confirmed from X-ray diffraction analysis. Detailed X-ray photoelectron spectroscopy (XPS) studies on the oxidation states of barium, strontium, gadolinium, cerium, zirconium, yttrium, and oxygen was performed. With increasing “x”, oxygen vacancy concentration increases as cerium ions in 4+ oxidation state decreases. The conduction behavior of composites depicts the protonic in nature and total activation energy lying in the range of 0.16-0.24 eV. This study indicates that the conductivity increases with GDC content in composite electrolytes and highest conductivity is found for composite with x=0.5. These characteristics are useful to make (1−x)Ba0.6Sr0.4CZY-xGDC composite electrolytes as promising candidate of central membrane for advanced fuel cell technology.

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