Article
Materials Science, Ceramics
Ming Wu, Hongdong Cai, Fangjun Jin, Ning Sun, Jingsheng Xu, Leilei Zhang, Xu Han, Shibo Wang, Xiaogang Su, Wen Long, Li Wang, Lei Zhang
Summary: The cobalt-free perovskite Ln(0.5)Sr(0.5)Fe(0.9)Mo(0.1)O(3-delta) was prepared via a sol-gel process, with LaSFM being assessed as the preferred ceramic cathode for IT-SOFC based on its excellent performance.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Physical
B. V. Politov, A. Yu. Suntsov
Summary: Complex oxides were successfully synthesized via combustion of organo-metallic precursors, and their high-temperature dc conductivity was studied to reveal inadequacies in existing conduction models, leading to the development of a new model approach. The mixed nature of the band structure for cobaltites was proposed, validated by magnetic, thermodynamic, and structural arguments, and shown to adequately describe collected data. The study also uncovered the reasons behind doping and temperature/pressure influences on conductivity changes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Inorganic & Nuclear
Vladimir V. Sereda, Dmitry A. Malyshkin, Ivan L. Ivanov, Dmitry S. Tsvetkov, Andrey Yu Zuev, Antoine Maignan
Summary: The study investigated the oxygen nonstoichiometry and oxidation enthalpy of double perovskites RBaCo2O6-delta, providing insights into their redox thermodynamics for oxygen storage and solar energy conversion applications.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Quan Yang, Dong Tian, Rui Liu, Haodong Wu, Yonghong Chen, Yanzhi Ding, Xiaoyong Lu, Bin Lin
Summary: It is found that rare-earth-abundant layered perovskite cathodes show promising performance in solid oxide fuel cells, with high electrical conductivity and excellent power density. Particularly, the NdBa0.5Sr0.5Co1.5Fe0.5O5+delta (NBSCF) cathode demonstrates advantages in surface oxygen exchange rate.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Juan Basbus, Mauricio Arce, Horacio Troiani, Fernando Prado, Liliana Mogni, Adriana Serquis
Summary: The study systematically investigated the high temperature properties of BaCe0.4Zr0.4Pr0.2O3-delta, exploring its potential application as a PC-SOFC cathode through conductivity measurements and structural analysis. It was found that the compound has low conductivity but good thermomechanical compatibility with electrolytes.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Shibo Wang, Jingsheng Xu, Ming Wu, Zhaoyuan Song, Li Wang, Leilei Zhang, Jian Yang, Wen Long, Lei Zhang
Summary: Investigations were conducted on cobalt-free BaFe0.9Nb0.1O3-delta (BFNb) as a cathode material for intermediate-temperature solid oxide fuel cell (IT-SOFC). Results show the co-existence of at least cubic and tetragonal phases in the BFNb sintered at 1000 or 1100 degrees C, with high electrical conductivity and stability in the intermediate-temperature range.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Yunru Chen, Tao Yu, Jiang Jin, Hua Zhang
Summary: The study investigates the performance of NBCFM cathodes for IT-SOFC and demonstrates a decrease in thermal expansion coefficient and an increase in surface oxygen exchange coefficient by mixing SDC with NBCFM. The NBCFM-30%SDC composite cathode shows significantly improved area specific resistance at 800 degrees Celsius, indicating its feasibility as a high-performance IT-SOFC cathode material. This study provides a promising strategy for designing composite cathodes for SOFCs based on triple perovskite structures.
Article
Nanoscience & Nanotechnology
Julia Lamb, Arumugam Manthiram
Summary: Sodium-ion batteries offer a promising alternative to lithium-ion batteries for large-scale energy storage. However, the poor electrolyte stability has hindered the development of sodium-ion batteries. Recent advances in electrolyte compositions have shown great promise in improving the stability of sodium-ion batteries.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Xiangming Bao, Xiaogang Su, Shibo Wang, Bin Pan, Li Wang, Leilei Zhang, Zhaoyuan Song, Wen Long, Cunlei Li
Summary: Layered perovskite oxides, Y1-xBixBaCo2O5+delta (YBBCx, x = 0.0-0.2), were investigated as cathodes for intermediate-temperature solid oxide fuel cells (IT-SOFCs). Bi-doping in YBBCx led to a decrease in conductivity, but the x = 0.2 sample still exhibited higher conductivity compared to a standard SOFC cathode. Bi-doping also enhanced the electrochemical performance by improving ion and electron charge transfers. Among the YBBCx compositions, the YBBC0.2 cathode showed the lowest polarization resistance at 700℃.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Electrochemistry
Long Jiang, Tao Wei, Yunhui Huang
Summary: This article reviews the latest progress of double perovskite electrode materials for solid oxide fuel cells, discussing their advantages, disadvantages, and electrochemical performances as oxygen, fuel, and symmetrical electrodes. Special emphasis is given to the basic principles, affecting factors, and solutions to overcome the drawbacks of these materials.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Si-Yuan Zhang, Yu-Jie Guo, Ya-Nan Zhou, Xu-Dong Zhang, Yu-Bin Niu, En-Hui Wang, Lin-Bo Huang, Peng-Fei An, Jing Zhang, Xin-An Yang, Ya-Xia Yin, Sailong Xu, Yu-Guo Guo
Summary: A newly developed P3/O3 hybrid cathode material with excellent high-rate performance and cycling stability is demonstrated by adjusting the Ti substitution amount in Na2/3Ni1/3Mn2/3-xTixO2. The co-existence of P3 and O3 phases and the superior electrochemical properties of the biphasic cathode indicate the significant role of P3/O3 hybridization in designing and engineering layered oxide cathodes for Na-ion batteries.
Article
Chemistry, Multidisciplinary
Shuying Zhen, Lihong Zhang, Chunming Xu, Ding Zhang, Qun Yi, Wang Sun, Kening Sun
Summary: This study focuses on the preparation of Ni/Ti co-doped Sr1.95Fe1.2Ni0.1Ti0.2Mo0.5O6-delta (SFNTM) double perovskite oxides for effective CO2 reduction. Ti-doping increases the structural stability and oxygen vacancy concentration, while in situ exsolved Ni nanoparticles on the SFNTM surface enhance the chemisorption and activation capacity for CO2. The modified Ni@SFNMT cathode exhibits improved catalytic activity and stability, making it a promising cathode material for solid oxide electrolysis cells.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Physical
Alexander Bonkowski, Caitlin Perkampus, Roger A. De Souza
Summary: By molecular dynamics simulations, we predict that substituting Ba with Ca yields a material, Ca0.5Sr0.5Co0.8Fe0.2O3-delta, that exhibits similarly high oxygen-vacancy diffusivity in its cubic form.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Review
Chemistry, Multidisciplinary
Shuoqing Zhao, Kang Yan, Jinqiang Zhang, Bing Sun, Guoxiu Wang
Summary: Layered lithium-rich cathode materials with high theoretical specific capacity have regained interest due to the increasing reliance on high-energy-density lithium-ion batteries. Research progress on the structure characterization and reaction mechanisms of these materials has been reviewed, focusing on both cationic and anionic redox reactions. The future development of lithium-rich cathode materials for next-generation lithium-ion batteries faces opportunities and challenges.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Materials Science, Ceramics
Quan Yang, Huanhuan Ma, Yanzhi Ding, Xiaoyong Lu, Yonghong Chen, Dong Tian, Bin Lin
Summary: In this study, a Na+ doping strategy is proposed to activate and stabilize the triple-conducting layered perovskite oxide for high-performance solid oxide fuel cells (SOFCs) based on yttria-stabilized zirconia (YSZ). The results show that Na+ doping enhances the electrochemical properties of the cathode, leading to improved performance. High-temperature XRD and the oxygen temperature-programmed desorption (O-2-TPD) confirm the improved structural stability of the doped cathode. This work demonstrates the potential of Na+ doping for perovskite cathodes and its effectiveness in promoting fuel cell performance.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Mechanical
Dzmitry S. Kharytonau, Malgorzata Zimowska, Jacek Gurgul, Grzegorz Mordarski, Robert Powalisz, Adam Rutowski, Grzegorz Putynkowski, Adam Zieba, Ukasz Mokrzycki, Robert P. Socha
Summary: This study analyzed the causes of corrosion failure in the cooling circuit of a molding plant and proposed recommendations to prevent further failures.
ENGINEERING FAILURE ANALYSIS
(2022)
Review
Materials Science, Ceramics
Inna A. Zvonareva, Dmitry A. Medvedev
Summary: Solid oxide fuel cells are efficient energy conversion devices, but the traditional yttria-stabilized zirconia materials used for electrolytes require high temperatures. This study analyzes the potential of barium stannate as a proton-conducting electrolyte material and confirms its suitability.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Electrochemistry
Anna V. Kasyanova, Julia G. Lyagaeva, Gennady K. Vdovin, Anna A. Murashkina, Dmitry A. Medvedev
Summary: The synthesis and comprehensive study of acceptor-doped lanthanum ytterbates were successfully conducted. These materials showed high chemical stability, good conductivity, and promising proton-conducting properties, making them suitable for various electrochemical devices, such as solid oxide fuel cells.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Artem P. Tarutin, Nikolai A. Danilov, Andrey A. Kalinin, Anna A. Murashkina, Dmitry A. Medvedev
Summary: The thermomechanical and chemical properties of Pr2NiO4+a-based electrode materials were optimized via Ba-doping, reducing their chemical interaction with Ba(Ce,Zr)O3-based electrolytes.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Inna A. Zvonareva, George N. Starostin, Mariam T. Akopian, Nataliia A. Tarasova, Dmitry A. Medvedev
Summary: The design and synthesis of new solid oxide materials play an important role in both fundamental and applied chemistry. This study focuses on the application of weakly studied Ba2SnO4 layered materials at high temperatures, and finds that the chemical stability of Ba2SnO4 can be slightly improved by La-doping.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
E. A. Chizhova, A. I. Klyndyuk, Ya. Yu. Zhuravleva, S. V. Shevchenko
Summary: NdBa1-xMgxFeCo0.5Cu0.5O5 + delta (0.00 <= x <= 0.40) double perovskites were synthesized using the ceramic method and their structure, oxygen nonstoichiometry (delta), and thermal and electrical transport properties were studied. These compounds have a tetragonal structure and are semiconductors of the p-type, which exhibit metal-like characteristics due to oxygen release at elevated temperatures. Partial replacement of barium with magnesium leads to a decrease in oxygen content, an increase in unit cell size and thermo-EMF coefficient, and a decrease in thermal stability, linear thermal expansion coefficient, and electrical conductivity. The electrical transport energy, weighted mobility, and charge carrier concentration of the studied materials were calculated.
GLASS PHYSICS AND CHEMISTRY
(2023)
Article
Chemistry, Physical
Inna A. Zvonareva, George N. Starostin, Mariam T. Akopian, Gennady K. Vdovin, Xian-Zhu Fu, Dmitry A. Medvedev
Summary: The search for new oxide materials with pronounced proton transport is important for efficient energy conversion processes. Y-doped barium stannates exhibit varying transport properties depending on the doping degree, with weakly doped stannates being electron conductors and heavily doped stannates showing higher ionic conductivity and wider electrolytic domain boundary, making them potential electrolytes for protonic ceramic fuel and electrolysis cells.
JOURNAL OF POWER SOURCES
(2023)
Article
Electrochemistry
Maria A. Osipenko, Aliaksandr A. Kasach, Janusz Adamiec, Malgorzata Zimowska, Irina I. Kurilo, Dzmitry S. Kharytonau
Summary: This study investigated the corrosion of AZ31 magnesium alloy in 0.05 M NaCl solutions containing 0.01-0.150 mol/dm(3) of potassium permanganate as a corrosion inhibitor. The results of electrochemical impedance spectroscopy, linear sweep voltammetry, and hydrogen evolution measurements showed that the inhibitor was highly effective at relatively high KMnO4 concentrations (0.150 mol/dm(3)). Based on data from energy-dispersive X-ray analysis, scanning electron microscopy, and Raman spectroscopy, a mechanism of corrosion inhibition by potassium permanganate in chloride-containing media was proposed.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Ksenia Belova, Anastasia Egorova, Svetlana Pachina, Irina Animitsa, Dmitry Medvedev
Summary: Oxygen-ionic and proton-conducting oxides, including La2ZnNdO5.5 and its Ca-doped derivatives, were synthesized. These materials were characterized for their phase composition, lattice parameters, and hydration capability. The conductivities of the samples were measured in dry and wet air, showing a significant increase in conductivity due to oxygen vacancies during acceptor doping. The Ca-doped phases also exhibited proton-conducting properties.
Article
Materials Science, Multidisciplinary
Natalia V. Bogomazova, Dzmitry S. Kharytonau, Ivan M. Zharskii, Robert P. Socha
Summary: In this work, ZnO/SnS/ITO/glass functional heterostructures were developed using electrodeposition of SnSx layer and successive ionic layer adsorption and reaction (SILAR) of ZnO layer. The obtained films showed high quality and promising characteristics for low-cost solar cells based on affordable materials.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Materials Science, Ceramics
Inna A. Zvonareva, George N. Starostin, Mariam T. Akopian, Anna A. Murashkina, Xian-Zhu Fu, Dmitry A. Medvedev
Summary: BaSnO3 is a new family of proton-conducting materials with potential high-temperature applications. The synthesis and characterization of BaSn1-xYxO3-δ (0 < x < 0.4) phases were conducted to understand the variations of chemical and thermal strains depending on composition. The results show that the importance of chemical expansion/contraction effects increases with increasing Y-content. These findings provide valuable data for the application of these materials in protonic ceramic devices.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Multidisciplinary
Maria A. Osipenko, Jakub Karczewski, Michal Dominow, Marta Przes, Iryna V. Makarava, Irina Kurilo, Dzmitry S. Kharytonau, Jacek Ryl
Summary: This research developed an impedance-based tool and combined the multisinusoidal perturbation signal approach with the distribution of relaxation times (DRT) analysis to monitor non-stationary electrochemical processes for the first time. It identified common processes related to corrosion product layer formation and provided real-time recognition of a unique localized filiform corrosion attack process.
Review
Chemistry, Physical
Nikolai A. Danilov, Inna A. Starostina, George N. Starostin, Anna V. Kasyanova, Dmitry A. Medvedev, Zongping Shao
Summary: Proton-conducting oxide materials have protonic defects in their crystal structure due to their interaction with hydrogen-containing atmospheres, resulting in superior ionic conductivity. Barium cerate, barium zirconate, and barium cerate-zirconate are widely studied as proton-conducting electrolyte materials. Y and Yb co-doped Ba(Ce,Zr)O-3 is considered one of the most promising systems.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Anna Komenda, Marek Wojnicki, Dzmitry Kharytonau, Grzegorz Mordarski, Edit Csapo, Robert P. Socha
Summary: Thin films of SnS were deposited on a copper substrate using a chemical bath method, and the effect of Na doping on the films was studied. SEM analysis showed that the films deposited at 80°C had a compact morphology, and the addition of a commercial surfactant resulted in rounded edges of the SnS grains. The thickness of the SnS layers on the copper substrate was found to be 230 nm, and the deposition parameters did not affect the thickness.
Article
Chemistry, Inorganic & Nuclear
Nataliia Tarasova, Anzhelika Bedarkova, Irina Animitsa, Ksenia Belova, Ekaterina Abakumova, Polina Cheremisina, Dmitry Medvedev
Summary: Inorganic materials with layered perovskite structures exhibit various physical and chemical properties. This study focuses on the oxygen ion and proton transport in alkali-earth doped layered perovskites based on BaLa2In2O7. Doping significantly enhances the conductivity values and the most proton-conductive samples exhibit high conductivity under wet air conditions.
