Article
Electrochemistry
Yongtao Huang, Ji Yu, Ning Tian, Yanmei Qu, Wenzhu Tan, Yinxian Luo, Chengyuan Wang, Ruoning Zheng, Jie Zheng
Summary: The influence of different contents of NiO on the performance of proton electrolyte BZY was studied, and the NiO-BZY composite electrolyte materials were prepared. The results showed that NiO improved the density and proton conductivity of BZY, leading to better performance of BZY-based SOECs. Among them, 2 mol. % NiO-BZY had the optimal performance.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2023)
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
Chemistry, Physical
Yu Huan, Mengyue Ma, Yuanhui Su, Dehua Dong, Xun Hu, Tao Wei
Summary: Oxide-ion conductors are commonly used in various environments for catalytic, conductive, and detecting purposes. However, the evaluation of intrinsic oxygen-ion transport in all environments has been limited. This study focuses on evaluating intrinsic oxide-ion conductivity and oxygen permeability in different environments and analyzing the factors that affect oxygen-ion transport.
JOURNAL OF MATERIOMICS
(2023)
Article
Electrochemistry
N. V. Lyskov, A. N. Shchegolikhin, D. N. Stolbov, I. V. Kolbanev, E. Gomes, J. C. C. Abrantes, A. V. Shlyakhtina
Summary: Stabilized fluorites and pyrochlores in the Nd2O3-ZrO2 system (NdZrO) with different substitution types were studied using Raman spectroscopy, X-ray diffraction, and impedance spectroscopy methods. The study presented maps of ionic and proton conductivity for 9 compositions in the NdZrO system. The results showed that certain compositions exhibited strong luminescence and high oxygen ion conductivity.
ELECTROCHIMICA ACTA
(2022)
Article
Biochemistry & Molecular Biology
Jack H. Duffy, Yuqing Meng, Harry W. Abernathy, Kyle S. Brinkman
Summary: Y substitution increases lattice size and forms oxygen vacancies, resulting in a decrease in oxygen permeation flux and DC total conductivity. However, Y-doped samples show an order of magnitude increase in surface exchange rates compared to Zr-doped samples.
Article
Chemistry, Physical
A. V. Shlyakhtina, E. D. Baldin, G. A. Vorobieva, I. V. Kolbanev, D. N. Stolbov, A. V. Kasyanova, N. V. Lyskov
Summary: The search for new materials with high proton or oxygen-ion conductivities is crucial for the advancements in solid state ionic and electrochemistry fields. In this study, the structure, phase transitions, and ionic conductivity of various composites and solid solutions were investigated. The results showed that proton conductivity was observed in the La14-xNdxW4O33 solid solutions, while oxygen-ion conductivity was found in the Nd-containing gamma-La6W2O15-based composites. The phase transition and cracking behavior of these materials were also studied.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
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
Chemistry, Physical
Yurii V. Yakovlev, Yevheniia V. Lobko, Maryna Vorokhta, Jaroslava Novakova, Michal Mazur, Iva Matolinova, Vladimir Matolin
Summary: The performance of proton-exchange membrane fuel cells is closely related to the transport properties of gas and charge carriers in the cathode catalyst layer. Selecting a suitable ionomer/carbon ratio can enhance the fuel cell performance, with increasing ionomer content decreasing proton resistance and increasing electron resistance. At an ionomer/carbon ratio of 0.6, the fuel cell exhibited the highest power density due to low oxygen transport and proton resistance.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Therese Eriksson, Amber Mace, Jonas Mindemark, Daniel Brandell
Summary: Polyesters and polycarbonates are considered as alternatives to polyethers for polymer electrolytes in solid-state lithium-ion batteries. The coordinating strength towards lithium ions varies due to different electron densities on the coordinating carbonyl oxygen. The cationic transference number depends linearly on the ester content, and despite contradictory measurements, DFT calculations showed carbonate coordinates more strongly to lithium ions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Spectroscopy
N. Tarasova, A. Galisheva, I Animitsa
Summary: The local structure of acceptor and donor doped solid solutions based on BaLaInO4 was investigated, confirming the appearance of new defects in the crystal lattice. Both solid solutions showed an increase in symmetry and interlayer space with dopant concentration. The transport properties exhibited similar tendencies, with increases in ionic conductivity at low concentration and decreases at high concentrations due to different factors. The most conductive material identified was Ba1.1La0.9InO3.95 with a Ruddlesden-Popper structure.
JOURNAL OF RAMAN SPECTROSCOPY
(2021)
Article
Materials Science, Ceramics
Hongzheng Li, Ying Li
Summary: KTaO3 and KTa0.9M0.1O3-alpha (M = Ti, Hf, Zr) were prepared and characterized. Among them, KTa0.9Zr0.1O3-alpha exhibited the highest conductivity in 1%H2/Ar atmosphere and acted as a pure proton conductor below 525 degrees C. Additionally, KTa0.9Zr0.1O3-alpha showed good chemical stability against CO2 and H2O.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Wenlong Huang, Ying Li, Haiqiang Lu, Yushi Ding, Yandong Liu
Summary: Doped CaZrO3 and CaHfO3 proton conductors were prepared by solid-state reaction and their conductivities and transport properties were systematically investigated in this study. The results show that these materials have promising protonic conduction properties, making them ideal for application in electrochemical hydrogen sensors.
CERAMICS INTERNATIONAL
(2021)
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
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
Materials Science, Ceramics
E. P. Kharitonova, E. Orlova, N. Gorshkov, V. G. Goffman, V. Voronkova
Summary: Cubic, tetragonal, and monoclinic solid solutions based on the Bi2O3 oxygen ion conductor have been successfully prepared in the ternary system Bi2O3-Nd2O3-WO3. Monoclinic compounds and Bi-poor cubic compounds show good thermal stability, while the cubic samples of the delta'-phase exhibit increased bulk conductivity with atmospheric humidity, suggesting their potential as proton conductors.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
D. A. Krainova, N. S. Saetova, A. Kuzmin, A. A. Raskovalov, V. A. Eremin, M. Ananyev, R. Steinberger-Wilckens
CERAMICS INTERNATIONAL
(2020)
Article
Electrochemistry
A. Kuzmin, M. S. Plekhanov, A. S. Lesnichyova
ELECTROCHIMICA ACTA
(2020)
Article
Chemistry, Physical
A. Kuzmin, A. S. Lesnichyova, E. S. Tropin, A. Yu Stroeva, V. A. Vorotnikov, M. Solodyankina, S. A. Belyakov, M. S. Plekhanov, A. S. Farlenkov, D. A. Osinkin, M. Beresnev, M. Ananyev
JOURNAL OF POWER SOURCES
(2020)
Article
Materials Science, Ceramics
D. A. Krainova, N. S. Saetova, A. S. Farlenkov, A. V. Khodimchuk, I. G. Polyakova, A. V. Kuzmin
Summary: This study investigated the behavior of a non-crystallising glass sealant in contact with NiO-YSZ ceramics and an Fe-Ni alloy under different atmospheres and substrate materials. The results showed variations in the performance and behavior of the sealant under different conditions.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
A. S. Lesnichyova, S. A. Belyakov, A. Yu Stroeva, A. V. Kuzmin
Summary: Through a series of experiments, it was found that La0.9Sr0.1ScO3-delta exhibits the highest proton conductivity at 800 degrees Celsius, making it suitable for various electrochemical devices. The study results indicate that an increase in Sr dopant concentration will increase the partial conductivity of each charge carrier.
CERAMICS INTERNATIONAL
(2021)
Article
Electrochemistry
A. I. Kovrova, V. P. Gorelov, A. V. Kuzmin, E. S. Tropin, D. A. Osinkin
Summary: By preparing Ce20R submicron barrier layers on YSZ solid electrolyte, the chemical interaction between the electrode and the electrolyte can be prevented effectively, greatly increasing the electrode's polarization conductivity.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2021)
Article
Electrochemistry
A. Ivanov, M. Plekhanov, A. Kuzmin
Summary: This study investigates the influence of the design and formation factors of a solid oxide fuel cell on its performance and stability. The sintering strategy and the presence of a barrier layer are found to be crucial for achieving stable performance. Impregnation of the cathode and anode improves electrochemical performance, while the absence of a barrier layer leads to a decrease in performance.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2022)
Article
Materials Science, Ceramics
D. A. Krainova, N. S. Saetova, I. G. Polyakova, A. S. Farlenkov, D. A. Zamyatin, A. Kuzmin
Summary: This study investigates the behavior of a promising glass sealant under SOFC operating conditions, and demonstrates its good performance and potential application in SOFCs.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Maksim S. Plekhanov, Sabrina L. J. Thoma, Mirijam Zobel, Gabriel J. Cuello, Henry E. Fischer, Anton A. Raskovalov, Anton Kuzmin
Summary: The introduction of cobalt into a proton-conducting oxide can increase the number of incorporated protons and improve the proton conductivity. This finding enhances our understanding of proton transport in triple-conducting oxides.
CHEMISTRY OF MATERIALS
(2022)
Article
Materials Science, Ceramics
N. S. Saetova, E. S. Shirokova, D. A. Krainova, N. S. Chebykin, B. A. Ananchenko, I. Tolstobrov, K. S. Belozerov, A. Kuzmin
Summary: This study tests the applicability of 3D printing technology in manufacturing glass sealants and finds the suitable composition of a glass-filled polymer compound for printing tubular SOFCs.
INTERNATIONAL JOURNAL OF APPLIED GLASS SCIENCE
(2022)
Article
Crystallography
Semyon A. Belyakov, Evgeny Yu Gerasimov, Anton Kuzmin
Summary: Perovskite-like vanadate-molybdates are interesting due to their metal-like conductivity and combination of correlated and free electron nature. This study focuses on a series of CaV1-xMoxO3-delta solid solutions, particularly near the Mo concentration x = 0.4, where a subtle structural transition was previously detected. The use of high-resolution transmission electron microscopy revealed phase separation in CaV0.6Mo0.4O3-delta, with nanoscale regions exhibiting different ratios of V and Mo concentrations, despite a homogeneous perovskite structure observed in X-ray diffraction analysis. Changes in oxygen activity also led to nonmonotonic behavior in the conductivity and linear expansion of CaV1-xMoxO3 +/-delta, which can be attributed to partial decomposition of the perovskite phase.
Article
Materials Science, Ceramics
V. A. Vorotnikov, S. A. Belyakov, M. S. Plekhanov, A. Yu Stroeva, A. S. Lesnichyova, O. M. Zhigalina, D. N. Khmelenin, V. G. Basu, A. V. Kuzmin
Summary: Proton-conducting electrolytes based on pyrochlore-like zirconates have excellent thermal and chemical stability, but their proton conductivity is hindered by structural limitations and grain boundaries. Improving the grain boundaries could enhance the proton conductivity.
CERAMICS INTERNATIONAL
(2022)
Article
Energy & Fuels
Andrey Bushuev, Oleg El'kin, Ivan Tolstobrov, Yulia Chetvertnykh, Mark Bobro, Nailya Saetova, Anton Kuzmin
Summary: This study proposes a method to produce heat-resistant protective coatings for 08Kh17T stainless steel, which can serve as interconnect materials for solid oxide fuel cells. The method involves layer-by-layer precipitation of nickel, cobalt, and manganese, followed by heat treatment in a vacuum and oxidizing atmosphere. XRD analysis reveals that the coatings consist of a mixture of metal oxides and compounds with a spinel structure. The obtained coatings exhibit excellent resistance to high-temperature oxidation for 100 hours, with the coating having a cobalt to manganese layer thickness ratio of 1.5/0.5 μm obtained through electrodeposition showing the highest stability. The specific electrical resistance of this coating after 100 hours of exposure at 850 degrees Celsius is 3.50 x 10(-3) omega cm(2), which meets the requirements for SOFC interconnect materials.
Article
Materials Science, Ceramics
Alyona Vepreva, Dmitry Dubovtsev, Daria Krainova, Yulia Chetvertnykh, Semyon Belyakov, Nailya Saetova, Anton Kuzmin
Summary: The effect of partial substitution of SiO2 with Al2O3 and B2O3 on the thermal properties and crystallization of glass sealants was investigated. The results showed that the thermal expansion coefficient of the sealants falls within a certain range, with alumina-doped sealants exhibiting crystallization and boron oxide-containing sealants remaining amorphous. The interaction between the sealants and YSZ ceramics did not significantly affect their adhesion and properties.
CERAMICS-SWITZERLAND
(2023)
Article
Chemistry, Applied
D. A. Krainova, N. S. Saetova, A. S. Farlenkov, S. A. Belyakov, A. Kuz'min
Summary: The addition of Cr2O3 can improve the thermal properties and chemical stability of glass sealant, making it suitable for solid oxide fuel cells.
RUSSIAN JOURNAL OF APPLIED CHEMISTRY
(2021)
