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Volume 13
Issue 16
10.3390/app13169052
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Article

Thermochemical Analysis of Hydrogenation of Pd-Containing Composite Based on TiZrVNbTa High-Entropy Alloy

by
Ivan Savvotin
1,
Elena Berdonosova
1,
Artem Korol
2,
Vladislav Zadorozhnyy
2,*,
Mikhail Zadorozhnyy
2,3,
Evgeniy Statnik
2,
Alexander Korsunsky
2,
Mikhail Serov
4 and
Semen Klyamkin
1
1
Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
2
Accelerated Particle Laboratory, National University of Science and Technology MISIS, Leninskiy Prospekt 4, 119049 Moscow, Russia
3
Center for Project Activities, Moscow Polytechnic University, Bolshaya Semenovskaya St., 2, 107023 Moscow, Russia
4
Moscow Aviation Institute, National Research University, 119049 Moscow, Russia
*
Author to whom correspondence should be addressed.
Appl. Sci. 2023, 13(16), 9052; https://doi.org/10.3390/app13169052
Submission received: 31 May 2023 / Revised: 27 July 2023 / Accepted: 6 August 2023 / Published: 8 August 2023
(This article belongs to the Special Issue Processing, Properties and Applications of Composite Materials)
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Abstract

The microcalorimetric hydrogen titration technique combined with conventional volumetric measurements has been used to reveal peculiarities of the hydrogenation of the single-phase TiZrVNbTa equiatomic high-entropy alloy. The alloy has been produced in the form of microfibers by the pendent drop melt extraction technique. Palladium coating of the fibers has been applied to enable first hydrogenation at room temperature without additional activation. An analysis of the obtained data allows us to evaluate the dependence of hydrogenation enthalpy on the hydrogen concentration in the alloy. Three concentration ranges, presumably related to the formation of the hydrogen solid solution, monohydride and dihydride phases, have been identified, and the corresponding ΔH values of about −100, −80 and −60 kJ/mol H2, respectively, have been determined.
Keywords: hydrogen storage; high-entropy alloys; calorimetry; palladium coating hydrogen storage; high-entropy alloys; calorimetry; palladium coating

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MDPI and ACS Style

Savvotin, I.; Berdonosova, E.; Korol, A.; Zadorozhnyy, V.; Zadorozhnyy, M.; Statnik, E.; Korsunsky, A.; Serov, M.; Klyamkin, S. Thermochemical Analysis of Hydrogenation of Pd-Containing Composite Based on TiZrVNbTa High-Entropy Alloy. Appl. Sci. 2023, 13, 9052. https://doi.org/10.3390/app13169052

AMA Style

Savvotin I, Berdonosova E, Korol A, Zadorozhnyy V, Zadorozhnyy M, Statnik E, Korsunsky A, Serov M, Klyamkin S. Thermochemical Analysis of Hydrogenation of Pd-Containing Composite Based on TiZrVNbTa High-Entropy Alloy. Applied Sciences. 2023; 13(16):9052. https://doi.org/10.3390/app13169052

Chicago/Turabian Style

Savvotin, Ivan, Elena Berdonosova, Artem Korol, Vladislav Zadorozhnyy, Mikhail Zadorozhnyy, Evgeniy Statnik, Alexander Korsunsky, Mikhail Serov, and Semen Klyamkin. 2023. "Thermochemical Analysis of Hydrogenation of Pd-Containing Composite Based on TiZrVNbTa High-Entropy Alloy" Applied Sciences 13, no. 16: 9052. https://doi.org/10.3390/app13169052

APA Style

Savvotin, I., Berdonosova, E., Korol, A., Zadorozhnyy, V., Zadorozhnyy, M., Statnik, E., Korsunsky, A., Serov, M., & Klyamkin, S. (2023). Thermochemical Analysis of Hydrogenation of Pd-Containing Composite Based on TiZrVNbTa High-Entropy Alloy. Applied Sciences, 13(16), 9052. https://doi.org/10.3390/app13169052

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