Article
Chemistry, Physical
N. Tarasova, A. Bedarkova, I. Animitsa, K. Davletbaev, I. Fedorova
Summary: Hydrogen energy is a promising field in clean energy due to the advantages it has over traditional fossil fuels. Proton-conducting solid oxide fuel cells are an important device in hydrogen energy electrochemical devices. Obtaining novel highly proton conductive materials is crucial, and the nonmetal doping strategy shows potential for improving the protonic conductivity in perovskite-related materials.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(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
Materials Science, Multidisciplinary
Artem P. Tarutin, Yulia G. Lyagaeva, Aleksey I. Vylkov, Maxim Yu. Gorshkov, Gennady K. Vdovin, Dmitry A. Medvedev
Summary: The research focuses on rational engineering of Cu-doped Pr(2)NiO4(+delta) materials and analyzing their electrode behavior for reversible protonic ceramic cells. Results show that copper doping with x = 0.2 has a positive impact on the thermomechanical compatibility of the Ba(Ce,Zr)O-3-based electrolytes.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Yu Zhou, Masahiro Shiraiwa, Masanori Nagao, Kotaro Fujii, Isao Tanaka, Masatomo Yashima, Laura Baque, Juan F. Basbus, Liliana Mogni, Stephen J. Skinner
Summary: The experimental investigation showed that calcium-doped layered perovskite compounds, BaNd1-xCaxInO4-x/2, exhibit significantly improved protonic conductivity, especially in humid environments. This study provides strong evidence that the doped compounds have potential applications as fast proton conductors.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Physical
N. Tarasova, A. Galisheva, I. Animitsa, D. Korona, K. Davletbaev
Summary: This study focuses on a novel material, BaLaIn0.5Y0.5O4, with significantly improved properties for clean energy applications. By introducing Y3+ ions into the perovskite layer, the oxygen ionic conductivity and protonic conductivity are both enhanced.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Yanzhi Zhang, Shijiu Liu, Qian Zhang, Tianxiang Ning, Xinli Wang, Anxian Lu
Summary: The microstructure and electrochemical properties of Li1.125Ta0.875-xNbxZr0.125SiO5 ceramics prepared via the solid-phase reaction method were investigated. The conductivity of the ceramics increased and then decreased as the Nb doping concentration increased. Nb doping at 0.1875 mol facilitated the fusion and connection between grains, reducing the number of grain boundaries and increasing the conductivity. The structural distortion caused by the discrepancy in ionic radii of Ta5+ and Nb5+ allowed for more accommodation of Li ions and promoted Li+ diffusion, reducing the energy potential barrier for ion transport. The Li1.125Ta0.6875Nb0.1875Zr0.125SiO5 ceramic exhibited the highest conductivity, making it a potential candidate for all-solid-state batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Ekaterina I. Orlova, Timofei A. Sorokin, Egor D. Baldin, Elena Yu Zakharova, Elena P. Kharitonova, Nikolay Lyskov, Vasiliy O. Yapaskurt, Valentina I. Voronkova
Summary: Fluorite-like compounds with the compositions Sm5Mo3O16 and LiSm4Mo3O15F were obtained for the first time by solid-phase synthesis in vacuum-sealed quartz ampoules. The resulting materials were characterized and it was found that LiSm4Mo3O15F samples have the same structure as cubic Sm5Mo3O16 compounds. The double replacement of samarium with lithium and oxygen with fluorine leads to a reversible phase transition and a jump in conductivity by 2 orders of magnitude. The LiSm4Mo3O15F compound exhibits a conductivity of 10-3 S/cm at 600 degrees C, which is about half an order of magnitude higher than non-fluorinated compounds.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Chemistry, Physical
Gongyue Huang, Luca Porcarelli, Maria Forsyth, Haijin Zhu
Summary: By carefully designing the anion chemistry of protic ionic liquids, the proton exchange rate can be significantly increased, leading to reduced potential loss at the electrode and more efficient energy conversion.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
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
Xiaoren Zhou, Liwu Huang, Omar Elkedim, Yuexin Xie, Yiteng Luo, Qinghao Chen, Yang Zhang, Yungui Chen
Summary: LLZO solid-state electrolyte co-doped with Sr2+ and Mo6+ shows enhanced performance in terms of ionic conductivity and relative density. Doping appropriate amounts of Sr2+ and Mo6+ can significantly improve the conductivity and density of the sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Ya-Zhe Xing, Yin-Ni Men, Xiao Feng, Ji-Hua Geng, Zhi-Rui Zou, Fu-Hua Chen
Summary: The effect of CuO addition on the microstructure and ionic conductivity of 8YSZ was investigated. The results show that with increasing CuO doping content, the lattice parameter decreases, while the relative density and mean grain size increase. 2 mol% CuO-doped 8YSZ exhibits the lowest activation energy and the highest ionic conductivity.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Chemistry, Physical
Zhixuan Wang, Yong Jiang, Juan Wu, Yi Jiang, Wencheng Ma, Yaru Shi, Xiaoyu Liu, Bing Zhao, Yi Xu, Jiujun Zhang
Summary: This study investigates the effects of doping sulfide solid electrolytes with various elements on the interface between the electrolyte and lithium metal. It found that the doping of MoS2 can promote ion conduction but also accelerate the thickening of the SEI and growth of Li dendrites, providing important insights for the selection of solid electrolyte dopants and interface construction.
Article
Materials Science, Ceramics
Anna Kasyanova, Artem Tarutin, Julia Lyagaeva, Xian-Zhu Fu, Dmitry Medvedev
Summary: The Y0.9Ca0.1Fe1-xCoxO3-delta phases with Co-doping show improved electrical conductivity and electrochemical polarisation resistance while maintaining good thermal properties. The simultaneous modification of both basic cationic sublattices of YFeO3 by calcium and iron tailors the functionality of the obtained compounds. The performance of a single SOFC with Y0.9Ca0.1Fe0.5Co0.5O3-delta electrode confirms the prospects of these modernized MIECs with acceptable electrochemical activity.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Keiga Fukui, Soshi Iimura, Albert Iskandarov, Tomofumi Tada, Hideo Hosono
Summary: In this study, we report a lightly oxygen-doped lanthanum hydride with high H- conductivity at room temperature, which is three orders of magnitude higher than the best conductor. The oxygen concentration is crucial for achieving fast H- conduction near room temperature, with a low activation barrier only observed for x < 0.25.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Review
Materials Science, Ceramics
Andrey O. Zhigachev, Vyacheslav V. Rodaev, Darya V. Zhigacheva, Nikolay V. Lyskov, Mariya A. Shchukina
Summary: The focus of this review is on the development of scandia-stabilized zirconia (ScSZ) electrolytes for intermediate-temperature solid oxide fuel cells (SOFCs). The study explores the co-doping control and preparation techniques for improving ionic conductivity and phase stability of ScSZ, with the aim of addressing limitations in the efficient operation of these fuel cells.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
N. Tarasova, A. Galisheva, I. Animitsa
Summary: The new complex oxides Ba1.1La0.9In0.95Ti0.05O3.98 show a significant increase in protonic conductivity through doping, making them promising for practical applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Ceramics
N. Tarasova, A. Galisheva, I Animitsa, I Anokhina, A. Gilev, P. Cheremisina
Summary: The possibility of isovalent substitution in the In-sublattice of layered perovskite BaLaInO4 was experimentally investigated. Yttrium doping significantly increased the total and protonic conductivity, and doped samples showed higher conductivity under wet air conditions.
CERAMICS INTERNATIONAL
(2022)
Review
Chemistry, Physical
Nataliia Tarasova, Irina Animitsa
Summary: This paper reviews the research on the new class of ionic conductors. Layered perovskite materials Ba(Sr)La(Nd)InO4 and various doped compositions have been investigated as oxygen-ion and proton conductors. The study found that doped and undoped layered perovskites exhibit mixed hole-ionic conductivity properties and can achieve proton conductivity in humid air.
Article
Chemistry, Physical
N. A. Tarasova, A. O. Galisheva, I. E. Animitsa, D. Korona, N. Lakiza
Summary: Complex oxides Ba1+xLa1-xIn0.5Y0.5O4-0.5x with a Ruddlesden-Popper block-layered structure are successfully obtained for the first time. Dissociative absorption of water from the gas phase is observed, and energetically nonequivalent OH- groups are found to be the only form of oxygen-hydrogen groups. It is shown that joint iso- and heterovalent doping of cationic sublattices significantly enhances the proton concentration in hydrated samples, which is beneficial for proton transfer.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
(2022)
Article
Chemistry, Physical
Nataliia Tarasova, Anzhelika Galisheva, Irina Animitsa, Ksenia Belova, Anastasia Egorova, Ekaterina Abakumova, Dmitry Medvedev
Summary: This study focuses on the design of new oxide compounds for solid oxide fuel cells that can conduct oxygen or protons. A novel material, BaNd2In2O7 perovskite, was investigated as a protonic conductor for the first time. The study comprehensively examined its local structure, water uptake, and ionic conductivity. The analysis revealed that BaNd2In2O7 is nearly a pure proton conductor below 350 degrees C, opening up new possibilities for the design of protonic conductors with double-layered perovskite structure.
Article
Chemistry, Multidisciplinary
Nataliia Tarasova, Anzhelika Galisheva, Irina Animitsa, Daniil Korona, Hala Kreimesh, Irina Fedorova
Summary: This work focuses on investigating layered perovskite-related materials as potential electrolytic components for clean energy devices, such as proton conducting solid oxide fuel cells. The study explores the proton conductivity of a two-layered perovskite BaLa2In2O7 with the Ruddlesden-Popper structure and investigates the impact of increasing the amount of perovskite blocks in the layered structure on ionic transport. The results demonstrate that layered perovskites BaLanInnO3n+1 (n = 1, 2) exhibit almost pure protonic conductivity below 350 degrees Celsius.
APPLIED SCIENCES-BASEL
(2022)
Article
Materials Science, Ceramics
N. Tarasova, A. Galisheva, I. Animitsa, D. Korona, E. Abakumova, D. Medvedev
Summary: This study confirmed that the acceptor (calcium) and donor (indium) doping can significantly improve the properties of layered perovskite BaLa2In2O7 and increase the oxygen-ionic conductivity. It provides a new approach for the design of novel oxygen-ionic conductors.
CERAMICS INTERNATIONAL
(2022)
Article
Biochemistry & Molecular Biology
Nataliia Tarasova, Anzhelika Bedarkova, Irina Animitsa, Ekaterina Abakumova, Ksenia Belova, Hala Kreimesh
Summary: This paper demonstrates the possibility of proton conductivity in acceptor-doped two-layer compositions based on BaLa2In2O7 for the first time. Doping leads to a significant increase in conductivity values, with BaLa1.9Sr0.1In2O6.95 showing the highest protonic conductivity value.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Nataliia Tarasova, Anzhelika Bedarkova, Irina Animitsa
Summary: Materials for energy generation, such as thermoelectrics, photovoltaics, and electronic/ionic conductors, have been actively investigated. Layered perovskites, known for their high conductivity, have shown promising results when doped with rare earth metals. The first investigation of gadolinium-doped layered perovskite BaLaInO4 demonstrated high conductivity values, particularly protonic transport under wet air and low temperatures.
Article
Chemistry, Physical
Nataliia Tarasova, Anzhelika Bedarkova, Irina Animitsa, Ekaterina Abakumova, Vladislava Gnatyuk, Inna Zvonareva
Summary: This paper presents the investigation of a novel material, SrLa2Sc2O7, as a protonic conductor. The results demonstrate that SrLa2Sc2O7 exhibits high protonic conductivity and water uptake ability, making it a potential electrolyte for solid oxide fuel cells and electrolyzers.
Article
Chemistry, Multidisciplinary
Nataliia Tarasova, Anzhelika Bedarkova, Irina Animitsa
Summary: One urgent task in applied materials science is to create novel high-effective materials for specific purposes. In the field of energy systems, there is a challenge in converting chemical energy to electricity without mechanical work. Hydrogen energy offers a solution through electrochemical devices like protonic ceramic fuel cells. This study explores the use of layered perovskites as protonic conductors and demonstrates the enhanced proton conductivity of doped BaLa0.9Pr0.1InO4 compared to undoped BaLaInO4. Layered perovskites based on BaLaInO4 show promise for proton-conducting electrochemical devices.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Chemical
Nataliia Tarasova, Anzhelika Bedarkova, Irina Animitsa, Evgeniya Verinkina
Summary: The search for highly effective materials with specific electrochemical properties is currently active. Ceramic materials with high ionic conductivity are used in solid oxide fuel cells and electrolyzers. Layered perovskite BaLa2In2O7 doped with gadolinium was investigated for the first time, showing significant increase in ionic conductivity and potential application in electrochemical devices for energy.
Article
Chemistry, Multidisciplinary
Nataliia Tarasova, Anzhelika Bedarkova, Irina Animitsa, Ekaterina Abakumova, Alexey Trofimov, Evgeniya Verinkina
Summary: Proton conducting materials play a crucial role in hydrogen energy devices, such as fuel cells and electrolyzers, contributing to clean energy and sustainable environmental development. Layered perovskites, specifically the bilayered perovskites BaLa1.9-xSrxGd0.1In2O7-0.5x, show potential as proton conducting electrolytes. Cationic co-doping significantly enhances the proton conductivity, increasing it by up to 1.5 orders of magnitude.
APPLIED SCIENCES-BASEL
(2023)
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.
Article
Chemistry, Physical
Nataliia Tarasova, Anzhelika Bedarkova
Summary: This study focuses on the development of new ceramic materials with improved properties for hydrogen energy purposes. It demonstrates the successful synthesis of a neodymium-doped phase based on layered perovskite, showing its capability for water intercalation and proton transport. The study also suggests that isovalent doping of layered perovskites is a promising method for improving transport properties and obtaining novel advanced proton-conducting ceramic materials.
