Electrochemical performance and stability of SrTi 0.3Fe 0.6Co 0.1O 3-δ infiltrated La 0.8Sr 0.2MnO 3Zr 0.92Y 0.16O 2-δ oxygen electrodes for intermediate-temperature solid oxide electrochemical cells
Abstract
We report that the La 0.8Sr 0.2MnO 3-Zr 0.92Y 0.16O 2-δ (LSM-YSZ) composite is the most widely used oxygen electrode for solid oxide electrochemical cells (SOCs). However, operating temperatures > 700 degrees C are required for good performance since oxygen reactions are limitied to three-phase boundaries (TPBs) because of poor ionic conductivity of LSM. Furthermore, LSM-YSZ electrodes typically delaminate during electrolysis operation leading to cell degradation. One strategy to improve SOCs with LSM-YSZ electrodes is to infiltrate a mixed ionically and electronically conducting (MIEC) material that promotes oxygen exchange. However, infiltrated materials have a nano-scale structure that may not be stable under SOC operating temperatures. Here, we report results on the infiltration of SrTi 0.3Fe 0.6Co 0.1O 3-δ(STFC), a recently reported high performance MIEC, into LSM-YSZ to improve its electrochemical performance and stability at intermediate temperatures. The infiltrated STFC enhances LSM-YSZ and cell performance, typically yielding a decrease in electrode polarization resistance by a factor > 3 times, resulting in an increase in fuel cell maximum power density and electrolysis current density (at 1.3 V) by a factor > 2 times. Perhaps more significantly, the infiltrated electrodes show good performance stability, with suppression of electrode delamination during electrolysis and nomore »
- Authors:
-
- Northwestern Univ., Evanston, IL (United States); Xi'an Jiaotong Univ., Shaanxi (China)
- Northwestern Univ., Evanston, IL (United States)
- Xi'an Jiaotong Univ., Shaanxi (China)
- Publication Date:
- Research Org.:
- Northwestern Univ., Evanston, IL (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Fuel Cell Technologies Office; National Science Foundation (NSF); China Scholarship Council; USDOE Basic Energy Science - Materials Science
- OSTI Identifier:
- 1599353
- Alternate Identifier(s):
- OSTI ID: 1547504; OSTI ID: 1658926
- Grant/Contract Number:
- SC0016965; EE0008079; DMR-1506925; DMR-1545907; DMR-1121262; NNCI-1542205; 201606285002; 51602248; EE450008079
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Journal of Power Sources
- Additional Journal Information:
- Journal Volume: 426; Journal Issue: C; Journal ID: ISSN 0378-7753
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Solid oxide electrochemical cells; Oxygen electrode; Infiltration; Electrochemical performance; Stability
Citation Formats
Zhang, Shan-Lin, Wang, Hongqian, Lu, Matthew Y., Li, Cheng-Xin, Li, Chang-Jiu, and Barnett, Scott A. Electrochemical performance and stability of SrTi0.3Fe0.6Co0.1O3-δ infiltrated La0.8Sr0.2MnO3Zr0.92Y0.16O2-δ oxygen electrodes for intermediate-temperature solid oxide electrochemical cells. United States: N. p., 2019.
Web. doi:10.1016/j.jpowsour.2019.04.044.
Zhang, Shan-Lin, Wang, Hongqian, Lu, Matthew Y., Li, Cheng-Xin, Li, Chang-Jiu, & Barnett, Scott A. Electrochemical performance and stability of SrTi0.3Fe0.6Co0.1O3-δ infiltrated La0.8Sr0.2MnO3Zr0.92Y0.16O2-δ oxygen electrodes for intermediate-temperature solid oxide electrochemical cells. United States. https://doi.org/10.1016/j.jpowsour.2019.04.044
Zhang, Shan-Lin, Wang, Hongqian, Lu, Matthew Y., Li, Cheng-Xin, Li, Chang-Jiu, and Barnett, Scott A. Tue .
"Electrochemical performance and stability of SrTi0.3Fe0.6Co0.1O3-δ infiltrated La0.8Sr0.2MnO3Zr0.92Y0.16O2-δ oxygen electrodes for intermediate-temperature solid oxide electrochemical cells". United States. https://doi.org/10.1016/j.jpowsour.2019.04.044. https://www.osti.gov/servlets/purl/1599353.
@article{osti_1599353,
title = {Electrochemical performance and stability of SrTi0.3Fe0.6Co0.1O3-δ infiltrated La0.8Sr0.2MnO3Zr0.92Y0.16O2-δ oxygen electrodes for intermediate-temperature solid oxide electrochemical cells},
author = {Zhang, Shan-Lin and Wang, Hongqian and Lu, Matthew Y. and Li, Cheng-Xin and Li, Chang-Jiu and Barnett, Scott A.},
abstractNote = {We report that the La0.8Sr0.2MnO3-Zr0.92Y0.16O2-δ (LSM-YSZ) composite is the most widely used oxygen electrode for solid oxide electrochemical cells (SOCs). However, operating temperatures > 700 degrees C are required for good performance since oxygen reactions are limitied to three-phase boundaries (TPBs) because of poor ionic conductivity of LSM. Furthermore, LSM-YSZ electrodes typically delaminate during electrolysis operation leading to cell degradation. One strategy to improve SOCs with LSM-YSZ electrodes is to infiltrate a mixed ionically and electronically conducting (MIEC) material that promotes oxygen exchange. However, infiltrated materials have a nano-scale structure that may not be stable under SOC operating temperatures. Here, we report results on the infiltration of SrTi0.3Fe0.6Co0.1O3-δ(STFC), a recently reported high performance MIEC, into LSM-YSZ to improve its electrochemical performance and stability at intermediate temperatures. The infiltrated STFC enhances LSM-YSZ and cell performance, typically yielding a decrease in electrode polarization resistance by a factor > 3 times, resulting in an increase in fuel cell maximum power density and electrolysis current density (at 1.3 V) by a factor > 2 times. Perhaps more significantly, the infiltrated electrodes show good performance stability, with suppression of electrode delamination during electrolysis and no evidence of coarsening or segregation induced degradation.},
doi = {10.1016/j.jpowsour.2019.04.044},
url = {https://www.osti.gov/biblio/1599353},
journal = {Journal of Power Sources},
issn = {0378-7753},
number = C,
volume = 426,
place = {United States},
year = {2019},
month = {4}
}
Web of Science
Works referencing / citing this record:
Positive Effect of Incorporating Er 0.4 Bi 1.6 O 3 on the Performance and Stability of La 2 NiO 4+δ Cathode
journal, January 2019
- He, Zelong; Ai, Na; He, Shuai
- Journal of The Electrochemical Society, Vol. 166, Issue 12