@article{789de066b2d0442597bb4725d02b2748,
title = "Medium-entropy SrV1/3 Fe1/3 Mo1/3 O3 with high conductivity and strong stability as SOFCs high-performance anode",
abstract = "Perovskite oxides using solid oxide fuel cells (SOFCs) anodes should possess high chemical stability, adequate electronic conductivity and excellent catalytic oxidation for fuel gas. In this work, the medium-entropy SrV1/3 Fe1/3 Mo1/3 O3 (SVFMO) with Fe, V and Mo co-existing in the B site of a perovskite structure was fabricated in reducing 5% H2 /Ar mixed gas: (1) SVFMO demonstrates more stable physicochemical properties when using SOFCs anodes in a reducing environment; (2) the co-existence of Fe, V and Mo in SVFMO forms more small-polaron couples, demonstrating greatly enhanced electronic conductivity. With SVFMO in a porous structure (simulating the porous anode layer), its electronic conductivity can also reach 70 S cm−1 when testing at 800◦ C in an H2 atmosphere; (3) SVFMO with more oxygen vacancies achieves higher catalytic ability for fuel gas, as an SOFCs anode layer demonstrates 720 mW cm−2 at 850◦ C.",
keywords = "enhanced fuel catalysis, high conductivity, high stable anode, medium-entropy SrV Fe Mo O, solid oxide fuel cell",
author = "Guanjun Ma and Dezhi Chen and Shuaijing Ji and Xinyun Bai and Xinjian Wang and Yu Huan and Dehua Dong and Xun Hu and Tao Wei",
note = "Funding Information: Supplementary Materials: The following supporting information can be downloaded at: www.mdpi.com/xxx/s1, Figure S1: XPS of Fe 2p for SVFMO and SFMO anode.; Figure S2: XPS of V 2p for SVMO and SVFMO anode;Figure S3: The equivalent circuit for the fitting EIS of symmetric fittingcells (testEIS ofing symmetricat 850 oC). cells (testing at 850 ◦C). Author Contributions: Conceptualization, Y.H. and T.W.; methodology, G.M.; software, X.W. and X.H.; validation, S.J. and D.C.; formal analysis, G.M.; investigation, D.C. and D.D.; resources, X.H. and S.J.; data curation, D.D.; writing—original draft preparation, G.M. and X.B.; writing—review and editing, T.W.; visualization, X.B.; supervision, Y.H. and X.W.; project administration, T.W.; funding acquisition, T.W. All authors have read and agreed to the published version of the manuscript. Funding: The work was supported by the National Natural Science Foundation of China (Grant Nos. Funding: The work was supported by the National Natural Science Foundation of China (Grant 51972146, 52072150), Young Elite Scientists Sponsorship Program by CAST. Nos. 51972146, 52072150), Young Elite Scientists Sponsorship Program by CAST. Institutional Review Board Statement: Not applicable. Institutional Review Board Statement: Not applicable. Informed Consent Statement: Not applicable. Informed Consent Statement: Not applicable. Data Availability Statement: The data that support the findings of this study are available from the Data Availability Statement: The data that support the findings of this study are available from the corresponding author upon reasonable request. corresponding author upon reasonable request. Conflicts of Interest: The authors declared that there is no conflict of interest in this work. Conflicts of Interest: The authors declared that there is no conflict of interest in this work. Publisher Copyright: {\textcopyright} 2022 by the authors. Licensee MDPI, Basel, Switzerland.",
year = "2022",
month = mar,
day = "20",
doi = "10.3390/ma15062298",
language = "English",
volume = "15",
journal = "Materials",
issn = "1996-1944",
publisher = "MDPI AG",
number = "6",
}