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Structural and Transport Properties of E-Beam Sintered Lanthanide Tungstates and Tungstates-Molybdates Full article

Journal Nanomaterials
, E-ISSN: 2079-4991
Output data Year: 2022, Volume: 12, Number: 19, Article number : 3282, Pages count : 11 DOI: 10.3390/nano12193282
Tags lanthanide tungstates; e-beam sintering; protonic conductivity; oxygen mobility
Authors Sadykov Vladislav 1 , Bespalko Yuliya 1 , Sadovskaya Ekaterina 1 , Krieger Tamara 1 , Belyaev Vladimir 1 , Eremeev Nikita 1 , Mikhailenko Mikhail 2 , Bryazgin Alexander 3 , Korobeynikov Mikhail 3 , Ulihin Artem 2 , Uvarov Nikolai 2
Affiliations
1 Federal Research Center, Boreskov Institute of Catalysis SB RAS, Akad. Laverntieva Ave. 5, 630090 Novosibirsk, Russia
2 Institute of Solid State Chemistry and Mechanochemistry SB RAS, Kutateladze Str. 18, 630128 Novosibirsk, Russia
3 Budker Institute of Nuclear Physics SB RAS, Akad. Laverntieva Ave. 11, 630090 Novosibirsk, Russia

Funding (3)

1 Ministry of Science and Higher Education of the Russian Federation 0239-2021-0011
2 Ministry of Science and Higher Education of the Russian Federation FWUS-2022-0001
3 Ministry of Science and Higher Education of the Russian Federation 4.0.02.0123

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.
Cite: 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. 2022. V.12. N19. 3282 :1-11. DOI: 10.3390/nano12193282 WOS Scopus РИНЦ AN PMID OpenAlex
Dates:
Submitted: Aug 23, 2022
Accepted: Sep 18, 2022
Published online: Sep 21, 2022
Published print: Oct 1, 2022
Identifiers:
Web of science: WOS:000868106500001
Scopus: 2-s2.0-85139916079
Elibrary: 50357760
Chemical Abstracts: 2022:2673757
PMID: 36234410
OpenAlex: W4296614638
Citing:
DB Citing
Scopus 3
Web of science 3
Elibrary 6
OpenAlex 3
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