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Sadykov V, Pikalova E, Sadovskaya E, Shlyakhtina A, Filonova E, Eremeev N. Design of Mixed Ionic-Electronic Materials for Permselective Membranes and Solid Oxide Fuel Cells Based on Their Oxygen and Hydrogen Mobility. MEMBRANES 2023; 13:698. [PMID: 37623759 PMCID: PMC10456803 DOI: 10.3390/membranes13080698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/23/2023] [Accepted: 07/25/2023] [Indexed: 08/26/2023]
Abstract
Oxygen and hydrogen mobility are among the important characteristics for the operation of solid oxide fuel cells, permselective membranes and many other electrochemical devices. This, along with other characteristics, enables a high-power density in solid oxide fuel cells due to reducing the electrolyte resistance and enabling the electrode processes to not be limited by the electrode-electrolyte-gas phase triple-phase boundary, as well as providing high oxygen or hydrogen permeation fluxes for membranes due to a high ambipolar conductivity. This work focuses on the oxygen and hydrogen diffusion of mixed ionic (oxide ionic or/and protonic)-electronic conducting materials for these devices, and its role in their performance. The main laws of bulk diffusion and surface exchange are highlighted. Isotope exchange techniques allow us to study these processes in detail. Ionic transport properties of conventional and state-of-the-art materials including perovskites, Ruddlesden-Popper phases, fluorites, pyrochlores, composites, etc., are reviewed.
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Affiliation(s)
- Vladislav Sadykov
- Federal Research Center, Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia; (E.S.); (N.E.)
| | - Elena Pikalova
- Institute of High Temperature Electrochemistry UB RAS, 620137 Yekaterinburg, Russia;
- Graduate School of Economics and Management, Ural Federal University, 620002 Yekaterinburg, Russia
| | - Ekaterina Sadovskaya
- Federal Research Center, Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia; (E.S.); (N.E.)
| | - Anna Shlyakhtina
- Federal Research Center, Semenov Institute of Chemical Physics RAS, 119991 Moscow, Russia;
| | - Elena Filonova
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Yekaterinburg, Russia;
| | - Nikita Eremeev
- Federal Research Center, Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia; (E.S.); (N.E.)
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Bespalko Y, Eremeev N, Sadovskaya E, Krieger T, Bulavchenko O, Suprun E, Mikhailenko M, Korobeynikov M, Sadykov V. Synthesis and Oxygen Mobility of Bismuth Cerates and Titanates with Pyrochlore Structure. MEMBRANES 2023; 13:598. [PMID: 37367802 DOI: 10.3390/membranes13060598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/07/2023] [Accepted: 06/09/2023] [Indexed: 06/28/2023]
Abstract
Synthesis and study of materials based on bismuth cerates and titanates were carried out. Complex oxides Bi1.6Y0.4Ti2O7 were synthesized by the citrate route; Bi2Ce2O7 and Bi1.6Y0.4Ce2O7-by the Pechini method. The structural characteristics of materials after conventional sintering at 500-1300 °C were studied. It is demonstrated that the formation of a pure pyrochlore phase, Bi1.6Y0.4Ti2O7, occurs after high-temperature calcination. Complex oxides Bi2Ce2O7 and Bi1.6Y0.4Ce2O7 have a pyrochlore structure formed at low temperatures. Yttrium doping of bismuth cerate lowers the formation temperature of the pyrochlore phase. As a result of calcination at high temperatures, the pyrochlore phase transforms into the CeO2-like fluorite phase enriched by bismuth oxide. The influence of radiation-thermal sintering (RTS) conditions using e-beams was studied as well. In this case, dense ceramics are formed even at sufficiently low temperatures and short processing times. The transport characteristics of the obtained materials were studied. It has been shown that bismuth cerates have high oxygen conductivity. Conclusions are drawn about the oxygen diffusion mechanism for these systems. The materials studied are promising for use as oxygen-conducting layers in composite membranes.
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Affiliation(s)
- Yuliya Bespalko
- Federal Research Center, Boreskov Institute of Catalysis SB RAS, Novosibirsk, Akad. Lavrentieva Ave. 5, 630090 Novosibirsk, Russia
| | - Nikita Eremeev
- Federal Research Center, Boreskov Institute of Catalysis SB RAS, Novosibirsk, Akad. Lavrentieva Ave. 5, 630090 Novosibirsk, Russia
| | - Ekaterina Sadovskaya
- Federal Research Center, Boreskov Institute of Catalysis SB RAS, Novosibirsk, Akad. Lavrentieva Ave. 5, 630090 Novosibirsk, Russia
| | - Tamara Krieger
- Federal Research Center, Boreskov Institute of Catalysis SB RAS, Novosibirsk, Akad. Lavrentieva Ave. 5, 630090 Novosibirsk, Russia
| | - Olga Bulavchenko
- Federal Research Center, Boreskov Institute of Catalysis SB RAS, Novosibirsk, Akad. Lavrentieva Ave. 5, 630090 Novosibirsk, Russia
| | - Evgenii Suprun
- Federal Research Center, Boreskov Institute of Catalysis SB RAS, Novosibirsk, Akad. Lavrentieva Ave. 5, 630090 Novosibirsk, Russia
| | - Mikhail Mikhailenko
- Institute of Solid State Chemistry and Mechanochemistry SB RAS, Kutateladze Str. 18, 630128 Novosibirsk, Russia
| | - Mikhail Korobeynikov
- Budker Institute of Nuclear Physics SB RAS, Akad. Lavrentieva Ave. 11, 630090 Novosibirsk, Russia
| | - Vladislav Sadykov
- Federal Research Center, Boreskov Institute of Catalysis SB RAS, Novosibirsk, Akad. Lavrentieva Ave. 5, 630090 Novosibirsk, Russia
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Carvalho SGM, Muccillo ENS, Muccillo R. Design and Validation of an Experimental Setup for Evaluation of Gas Permeation in Ceramic Membranes. MEMBRANES 2023; 13:246. [PMID: 36837749 PMCID: PMC9960571 DOI: 10.3390/membranes13020246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/06/2023] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
An experimental setup for the evaluation of permeation of gaseous species with the possibility of simultaneously collecting electrochemical impedance spectroscopy data in disk-shaped ceramic membranes was designed and assembled. It consists of an alumina sample holder with thermocouple tips and platinum electrodes located close to both sides of the sample. Water-cooled inlet and outlet gas connections allowed for the insertion of the sample chamber into a programmable split tubular furnace. Gas permeation through a ceramic membrane can be monitored with mass flow controllers, a mass spectrometer, and an electrochemical impedance analyzer. For testing and data validation, ceramic composite membranes were prepared with the infiltration of molten eutectic compositions of alkali salts (lithium, sodium, and potassium carbonates) into porous gadolinia-doped ceria. Values of the alkali salt melting points and the permeation rates of carbon dioxide, in agreement with reported data, were successfully collected.
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Affiliation(s)
- Sabrina G. M. Carvalho
- Center of Science and Technology of Materials, Energy and Nuclear Research Institute, Cidade Universitária, Av. Prof. Lineu Prestes, 2242, São Paulo 05508-000, SP, Brazil
- Institute of Physics, University of São Paulo, São Paulo 05508-090, SP, Brazil
| | - Eliana N. S. Muccillo
- Center of Science and Technology of Materials, Energy and Nuclear Research Institute, Cidade Universitária, Av. Prof. Lineu Prestes, 2242, São Paulo 05508-000, SP, Brazil
| | - Reginaldo Muccillo
- Center of Science and Technology of Materials, Energy and Nuclear Research Institute, Cidade Universitária, Av. Prof. Lineu Prestes, 2242, São Paulo 05508-000, SP, Brazil
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Sadykov V, Bespalko Y, Sadovskaya E, Krieger T, Belyaev V, Eremeev N, Mikhailenko M, Bryazgin A, Korobeynikov M, Ulihin A, Uvarov N. Structural and Transport Properties of E-Beam Sintered Lanthanide Tungstates and Tungstates-Molybdates. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3282. [PMID: 36234410 PMCID: PMC9565690 DOI: 10.3390/nano12193282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/17/2022] [Accepted: 09/18/2022] [Indexed: 06/16/2023]
Abstract
Lanthanide tungstates and molybdates are promising materials for hydrogen separation membranes due to their high protonic conductivity. A promising approach to fabricating ceramics based on these materials is radiation thermal sintering. The current work aims at studying the effect of radiation thermal sintering on the structural morphological and transport properties of (Nd,Ln)5.5(W,Mo)O11.25-δ as promising materials for hydrogen separation membranes. The defect fluorite structure was shown to be preserved during radiation thermal sintering at 1100 °C. The presence of protons in hydrated samples was confirmed by TGA. According to four-electrode studies and the isotope exchange of oxygen with C18O2, the samples demonstrate a high proton conductivity and oxygen mobility. Residual porosity (up to 29%) observed for these samples can be dealt with during membrane preparation by adding sintering aids and/or metal alloys nanoparticles. Hence, sintering by e-beams can be applied to the manufacturing of hydrogen separation membranes based on these materials.
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Affiliation(s)
- Vladislav Sadykov
- Federal Research Center, Boreskov Institute of Catalysis SB RAS, Akad. Laverntieva Ave. 5, 630090 Novosibirsk, Russia
| | - Yuliya Bespalko
- Federal Research Center, Boreskov Institute of Catalysis SB RAS, Akad. Laverntieva Ave. 5, 630090 Novosibirsk, Russia
| | - Ekaterina Sadovskaya
- Federal Research Center, Boreskov Institute of Catalysis SB RAS, Akad. Laverntieva Ave. 5, 630090 Novosibirsk, Russia
| | - Tamara Krieger
- Federal Research Center, Boreskov Institute of Catalysis SB RAS, Akad. Laverntieva Ave. 5, 630090 Novosibirsk, Russia
| | - Vladimir Belyaev
- Federal Research Center, Boreskov Institute of Catalysis SB RAS, Akad. Laverntieva Ave. 5, 630090 Novosibirsk, Russia
| | - Nikita Eremeev
- Federal Research Center, Boreskov Institute of Catalysis SB RAS, Akad. Laverntieva Ave. 5, 630090 Novosibirsk, Russia
| | - Mikhail Mikhailenko
- Institute of Solid State Chemistry and Mechanochemistry SB RAS, Kutateladze Str. 18, 630128 Novosibirsk, Russia
| | - Alexander Bryazgin
- Budker Institute of Nuclear Physics SB RAS, Akad. Laverntieva Ave. 11, 630090 Novosibirsk, Russia
| | - Mikhail Korobeynikov
- Budker Institute of Nuclear Physics SB RAS, Akad. Laverntieva Ave. 11, 630090 Novosibirsk, Russia
| | - Artem Ulihin
- Institute of Solid State Chemistry and Mechanochemistry SB RAS, Kutateladze Str. 18, 630128 Novosibirsk, Russia
| | - Nikolai Uvarov
- Institute of Solid State Chemistry and Mechanochemistry SB RAS, Kutateladze Str. 18, 630128 Novosibirsk, Russia
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