Observations on the Air Electrode‐Electrolyte Interface Degradation in Solid Oxide Electrolysis Cells

Keane, Michael; Verma, Atul; Singh, Prabhakar

doi:10.1002/9781118095249.ch17

Ceramic Engineering and Science Proceedings

2011

DOI: 10.1002/9781118095249.ch17

|View full text |Cite

Observations on the Air Electrode‐Electrolyte Interface Degradation in Solid Oxide Electrolysis Cells

Michael Keane¹,

Atul Verma²,

Prabhakar Singh³

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2019

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

(1 citation statement)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…can take place. 4,7,8 As a promising alternative for cermets, mixed ionic-electronic conductive (MIEC) materials have been in focus during the last years. High chemical stability has been proposed to be the potential strength of these materials.…”

mentioning

confidence: 99%

Influence of A- and B-Site Modifications of (La_1-xSr_x)_yCr_0.5-zMn_0.5-wNi_z+wO_3-δ on Electrochemical Impedance Characteristics of Reversible Solid Oxide Cell

Maide

Paiste

Möller

et al. 2019

J. Electrochem. Soc.

View full text Add to dashboard Cite

Influence of A-site deficiency and chemical composition of B-site (concentration of Ni, Mn, and Cr) on electrochemical performance of hydrogen electrode in (La 1-x Sr x ) y Cr 0.5-z Mn 0.5-w Ni z+w O 3-δ |(Sc 2 O 3 ) 0.10 (CeO 2 ) 0.01 (ZrO 2 ) 0.89 |La 0.8 Sr 0.2 FeO 3-δ reversible solid oxide fuel cell has been studied. Electrochemical characterization has been carried out in fuel cell and electrolysis regimes. Results indicate that in fuel cell regime most notable limiting steps were detected around 0.5 Hz frequency range and were attributed to gas-solid adsorption-desorption processes. pO 2 variation in the oxygen electrode compartment led to small variations in a total impedance of single cells but was not the limiting process. In electrolysis mode, the dissociative adsorption was shown as an important limiting stage and limitations in kinetic region of charge transfer step were remarkable. Increase of A-site deficiency caused a significant increase in high-frequency series resistance as well as some increase of total polarization resistance. Variation in B-site composition had a significant influence on electrochemical performance with very different frequency dependence of impedance. Highest current density values of 0.27 and 0.66 A cm −2 at unit cell potentials of 0.9 and 1.5 V, respectively, at 850°C were measured for La 0.75 Sr 0.25 Cr 0.3 Mn 0.5 Ni 0.2 O 3-δ (fuel cell mode) and (La 0.8 Sr 0.2 ) x Cr 0.49 Mn 0.49 Ni 0.02 O 3-δ (electrolysis mode) in hydrogen fuel gas with pH 2 O = 0.03 and 0.30 atm, respectively.

show abstract

mentioning

confidence: 99%

Influence of A- and B-Site Modifications of (La_1-xSr_x)_yCr_0.5-zMn_0.5-wNi_z+wO_3-δ on Electrochemical Impedance Characteristics of Reversible Solid Oxide Cell

Maide

Paiste

Möller

et al. 2019

J. Electrochem. Soc.

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Observations on the Air Electrode‐Electrolyte Interface Degradation in Solid Oxide Electrolysis Cells

Cited by 1 publication

References 17 publications

Influence of A- and B-Site Modifications of (La_1-xSr_x)_yCr_0.5-zMn_0.5-wNi_z+wO_3-δ on Electrochemical Impedance Characteristics of Reversible Solid Oxide Cell

Influence of A- and B-Site Modifications of (La_1-xSr_x)_yCr_0.5-zMn_0.5-wNi_z+wO_3-δ on Electrochemical Impedance Characteristics of Reversible Solid Oxide Cell

Contact Info

Product

Resources

About

Observations on the Air Electrode‐Electrolyte Interface Degradation in Solid Oxide Electrolysis Cells

Cited by 1 publication

References 17 publications

Influence of A- and B-Site Modifications of (La1-xSrx)yCr0.5-zMn0.5-wNiz+wO3-δ on Electrochemical Impedance Characteristics of Reversible Solid Oxide Cell

Influence of A- and B-Site Modifications of (La1-xSrx)yCr0.5-zMn0.5-wNiz+wO3-δ on Electrochemical Impedance Characteristics of Reversible Solid Oxide Cell

Contact Info

Product

Resources

About

Influence of A- and B-Site Modifications of (La_1-xSr_x)_yCr_0.5-zMn_0.5-wNi_z+wO_3-δ on Electrochemical Impedance Characteristics of Reversible Solid Oxide Cell

Influence of A- and B-Site Modifications of (La_1-xSr_x)_yCr_0.5-zMn_0.5-wNi_z+wO_3-δ on Electrochemical Impedance Characteristics of Reversible Solid Oxide Cell