On the sol-gel synthesis and characterization of (BaSr)(CeZr)O3-based fuel cell electrolytes

Shivendra Kumar Jaiswal; Sung Min Choi; Jongsup Hong; Kyung Joong Yoon; Ji Won Son; Byung Kook Kim; Hae Weon Lee; Jong Ho Lee

doi:10.1007/s11581-016-1801-3

On the sol-gel synthesis and characterization of (BaSr)(CeZr)O₃-based fuel cell electrolytes

Shivendra Kumar Jaiswal, Sung Min Choi, Jongsup Hong, Kyung Joong Yoon, Ji Won Son, Byung Kook Kim, Hae Weon Lee, Jong Ho Lee

Department of Mechanical Engineering

Research output: Contribution to journal › Article

5 Citations (Scopus)

Abstract

Proton-conducting ceramics have been very useful due to their potential applications in fuel cells, electrolysers, and hydrogen membranes. The proton-conducting fuel cell electrolytes (Ba_1−xSr_x)(Ce_0.75Zr_0.10Y_0.15)O_3−δ (x = 0–1.0) have been synthesized through sol-gel method and characterized with regard to phase, structural stability, and electrical conductivity. The structural behavior has been investigated by X-ray diffraction and theRaman spectroscopy. The XRD analysis shows perovskite-type cubic structure and values of lattice parameter lie in the range of ~4.29 to ~4.40 Å. Strontium substitution leads to lattice contraction, strengthening of the metal-oxygen bond, and increase of oxygen content (3−δ). The Raman spectra show different types of stretching/vibrations corresponding to octahedral, M-O stretching, and oxygen vacancies. The electrical conduction was found to be protonic in nature and decreases with increase of strontium insertion. The composition x = 0.4 shows relatively better structural stability against humid air/boiling water condition while inferior in carbon dioxide atmosphere.

Original language	English
Pages (from-to)	2529-2538
Number of pages	10
Journal	Ionics
Volume	22
Issue number	12
DOIs	https://doi.org/10.1007/s11581-016-1801-3
Publication status	Published - 2016 Dec 1

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All Science Journal Classification (ASJC) codes

Chemical Engineering(all)
Materials Science(all)
Engineering(all)
Physics and Astronomy(all)

Cite this

Jaiswal, S. K., Choi, S. M., Hong, J., Yoon, K. J., Son, J. W., Kim, B. K., Lee, H. W., & Lee, J. H. (2016). On the sol-gel synthesis and characterization of (BaSr)(CeZr)O₃-based fuel cell electrolytes. Ionics, 22(12), 2529-2538. https://doi.org/10.1007/s11581-016-1801-3

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abstract = "Proton-conducting ceramics have been very useful due to their potential applications in fuel cells, electrolysers, and hydrogen membranes. The proton-conducting fuel cell electrolytes (Ba1−xSrx)(Ce0.75Zr0.10Y0.15)O3−δ (x = 0–1.0) have been synthesized through sol-gel method and characterized with regard to phase, structural stability, and electrical conductivity. The structural behavior has been investigated by X-ray diffraction and theRaman spectroscopy. The XRD analysis shows perovskite-type cubic structure and values of lattice parameter lie in the range of ~4.29 to ~4.40 {\AA}. Strontium substitution leads to lattice contraction, strengthening of the metal-oxygen bond, and increase of oxygen content (3−δ). The Raman spectra show different types of stretching/vibrations corresponding to octahedral, M-O stretching, and oxygen vacancies. The electrical conduction was found to be protonic in nature and decreases with increase of strontium insertion. The composition x = 0.4 shows relatively better structural stability against humid air/boiling water condition while inferior in carbon dioxide atmosphere.",

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AU - Kim, Byung Kook

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10.1007/s11581-016-1801-3