Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Chemical stability aspects of BaCe0.7–xFexZr0.2Y0.1O3–δ mixed ionic-electronic conductors as promising electrodes for protonic ceramic fuel cells
AU - Tarutina, Liana
AU - Starostina, Inna
AU - Vdovin, Gennady
AU - Pershina, Svetlana
AU - Vovkotrub, Emma
AU - Murashkina, Anna
N1 - This work was financially supported by the President of the Russian Federation’s scholarship to junior scientists and postgraduate students, no. П 210.2022.1, https://grants.ex-tech.ru.
PY - 2023
Y1 - 2023
N2 - Mixed ion-electron conductors (MIECs) are promising materials for air electrodes for protonic ceramic fuel cells (PCFCs) or oxygen permeation membranes. In this work, various aspects of the chemical stability of Co-free MIEC materials, BaCe0.7–xFexZr0.2Y0.1O3–δ, were studied, including their interaction with another functional material (BaCe0.5Zr0.3Y0.1Yb0.1O3–δ-based proton-conducting electrolyte) and gas components (H2O, CO2, and H2). Chemical compatibility studies indicate no visible chemical interaction between the electrode and electrolyte materials even at 1200 °C, which is significantly higher than the operating temperatures (600–800 °C) of PCFCs. The treatments of BaCe0.7–xFexZr0.2Y0.1O3–δ in different atmospheres at 1100 °C, according to the XRD, SEM, IR and Raman spectroscopy data, resulted in the formation of impurity phases. However, their extremely small amounts suggest that they may not form at the operating temperatures. Thus, it can be assumed that the studied materials can be good candidates for various electrochemical applications. Copyright © 2023 by Animal Bioscience.
AB - Mixed ion-electron conductors (MIECs) are promising materials for air electrodes for protonic ceramic fuel cells (PCFCs) or oxygen permeation membranes. In this work, various aspects of the chemical stability of Co-free MIEC materials, BaCe0.7–xFexZr0.2Y0.1O3–δ, were studied, including their interaction with another functional material (BaCe0.5Zr0.3Y0.1Yb0.1O3–δ-based proton-conducting electrolyte) and gas components (H2O, CO2, and H2). Chemical compatibility studies indicate no visible chemical interaction between the electrode and electrolyte materials even at 1200 °C, which is significantly higher than the operating temperatures (600–800 °C) of PCFCs. The treatments of BaCe0.7–xFexZr0.2Y0.1O3–δ in different atmospheres at 1100 °C, according to the XRD, SEM, IR and Raman spectroscopy data, resulted in the formation of impurity phases. However, their extremely small amounts suggest that they may not form at the operating temperatures. Thus, it can be assumed that the studied materials can be good candidates for various electrochemical applications. Copyright © 2023 by Animal Bioscience.
UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85180605342
UR - https://elibrary.ru/item.asp?id=60040556
U2 - 10.15826/chimtech.2023.10.4.14
DO - 10.15826/chimtech.2023.10.4.14
M3 - Article
VL - 10
JO - Chimica Techno Acta
JF - Chimica Techno Acta
SN - 2409-5613
IS - 4
M1 - 202310414
ER -
ID: 50638411