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
Chemistry, Physical
Ce Wang, Pan-Pan Lin, Yu Gong, Zhan-Guo Liu, Tie-Song Lin, Peng He
Summary: A series of garnet-type electrolytes with co-doping of Ba2+ and Ta5+ were successfully prepared through pressureless sintering method, resulting in significantly enhanced ionic conductivity attributed to the higher Li+ concentration and widened Li+ transportation channel. This improvement in electrical performance was achieved by facilitating grain growth and densification of the electrolytes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Chemistry, Physical
Yue Huang, Ruiming Qiu, Wenchao Lian, Libin Lei, Tong Liu, Jihao Zhang, Yao Wang, Jianping Liu, Jin Huang, Fanglin Chen
Summary: This review summarizes five methods for determining the electrical conduction properties of mixed ionic-electronic conducting (MIEC) oxides and discusses their modifications considering electrode polarization and operation conditions. The application of these methods in assessing the conduction properties of triple ionic-electronic conducting (TIEC) oxides is highlighted, and the reliability and applicability of these methods are elaborated and compared.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Anastasia V. Egorova, Ksenia G. Belova, Irina E. Animitsa
Summary: The LaIn1-xZnxO3-1/2x samples were synthesized for the first time via solid-state reaction method. The effect of Zn2+ doping on the structure, water uptake and electrical properties of LaInO3 was investigated. The results show that Zn2+ is a good alternative to alkaline earth metals and improves the conductivity of the ceramics. The phase exhibits oxygen-ionic transport at temperatures below 500°C and protonic transport at temperatures below 600°C.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Ceramics
Yuan Li, Shichang Guo, Zhenzhu Cao, Jinrong Liu, Liying Wang, Guorong Li
Summary: Li7La3Zr2O12 is a promising material for solid-state lithium battery electrolyte, and its structure can be modified through Ta doping to enhance its ionic conductivity and lithium ion migration rate. This material exhibits high critical current density and discharge capacity in solid-state batteries, making it a competitive solid electrolyte.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Electrochemistry
Joseph Ring, Andreas Nenning, Juergen Fleig
Summary: LLTO is a promising material in Li ion battery application due to its stable ambient and high ionic conductivity. Under high Li chemical potential, LLTO undergoes a transition from an electrolyte to a high rate capable electrode material. However, the exact voltage of this transition and the electronic conductivity of reduced LLTO were unknown. In this study, we investigated the thermodynamics of lithium insertion and the ion and electron conductivity of reduced LLTO, and proposed a defect chemical model that fits well with the experimental data.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Songbai Hu, Yuanmin Zhu, Wenqiao Han, Xiaowen Li, Yanjiang Ji, Mao Ye, Cai Jin, Qi Liu, Sixia Hu, Jiaou Wang, Junling Wang, Jiaqing He, Claudio Cazorla, Lang Chen
Summary: A new thermal hydration strategy was introduced for synthesizing conductive protonated oxides from 3d transition-metal oxides, resulting in high electronic conductivity and unique water uptake properties. This opens up opportunities for creating high-conductive protonated layered oxides through co-doping of protons and oxygen ions.
ADVANCED MATERIALS
(2021)
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, Physical
Raffaele Resta
Summary: Faraday's experiment measures the adiabatic transport of charge in insulating liquids, with integers deeply rooted in topology. Atomic oxidation states, though important in chemistry, are not directly measurable. Topology plays a major role in ionic conductivity in insulating liquids.
JOURNAL OF CHEMICAL PHYSICS
(2021)
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
Nanoscience & Nanotechnology
Khaled Al Kurdi, Shawn A. Gregory, Madeleine P. Gordon, James F. Ponder, Amalie Atassi, Joshua M. Rinehart, Austin L. Jones, Jeffrey J. Urban, John R. Reynolds, Stephen Barlow, Seth R. Marder, Shannon K. Yee
Summary: This study investigates the charge-transport properties of P3HT and PE2 films doped with different iron(III) compounds, and finds that the electrical conductivity and Seebeck coefficients are significantly influenced by the dopant type and concentration.
ACS APPLIED MATERIALS & INTERFACES
(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
Physics, Condensed Matter
N. Tarasova, A. Galisheva, I. Animitsa
Summary: This study found that increasing dopant concentration leads to increased water uptake and decreased contribution of protons involved in strong H-bonds in block-layered proton conductors based on BaLaInO4. The increase in concentration of protonic species is mainly determined by the increase in unit cell volume during doping, rather than the nature of oxygen defects that appeared.
SOLID STATE COMMUNICATIONS
(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.