Extraction of ultrapure hydrogen with V-alloy membranes: From laboratory studies to practical applications

Alimov, V.N.; Bobylev, I.V.; Busnyuk, A.O.; Kolgatin, S.N.; Kuzenov, S.R.; Peredistov, E.Yu.; Livshits, A. I.

doi:10.1016/j.ijhydene.2018.05.121

Cited by 24 publications

(3 citation statements)

References 28 publications

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“…However, their use is difficult because of their low chemical stability, which can be increased by coating with palladium. The membranes obtained in this way also show good prospects for hydrogen purification [184,185].…”

Section: Membrane Technologies For Hydrogen Productionmentioning

confidence: 80%

Membrane Technologies for Decarbonization

Alent’ev

Волков

Воротынцев

et al. 2021

Membr. Membr. Technol.

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The deteriorating environmental situation has stimulated the world community to develop research related to the decarbonization of the economy and hydrogen energy. These two areas are essentially focused on membrane technologies, which play a crucial role in solving key tasks for these areas. This review is devoted to this research. The first part describes various membrane technologies aimed at capturing CO 2 from the most common gas mixtures, primarily containing nitrogen, methane, and hydrogen. In recent years, studies related to the amine purification of CO 2 , including membrane technologies, and the use of porous membranes filled with ionic liquids has also been intensively developed. Electromembrane technologies are also being developed that allow not only capture of CO 2 but also to process it into fuel or valuable chemicals. The course taken by several developed countries, including Russia, for the development of hydrogen energy includes the production, purification of hydrogen, and its conversion into energy. It should be noted that membrane technologies are fundamentally important for the development of each of these areas. Thus, the evolution of hydrogen is possible with the use of polymer membranes, and for deep purification and production of high-purity hydrogen by membrane catalysis; membranes based on palladium alloys are used. Finally, fuel cells are developed to produce energy from hydrogen, the most important part of which are proton or oxygen-conducting membranes.

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Section: Membrane Technologies For Hydrogen Productionmentioning

confidence: 80%

Membrane Technologies for Decarbonization

Alent’ev

Волков

Воротынцев

et al. 2021

Membr. Membr. Technol.

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“…Besides this, research studies have demonstrated that such Vbased thin membranes have similar permeability and higher resistance to H 2 embrittlement than Pd-based membranes. Alimov et al [66] prepared a thin-walled seamless tubular membrane using V-Pd and V-Fe alloys. Furthermore, they manufactured a membrane module by welding 18 membranes, which was applied to extract ultra-pure H 2 .…”

Section: Metal Membranesmentioning

confidence: 99%

A Review of Hydrogen Purification Technologies for Fuel Cell Vehicles

et al. 2021

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Nowadays, we face a series of global challenges, including the growing depletion of fossil energy, environmental pollution, and global warming. The replacement of coal, petroleum, and natural gas by secondary energy resources is vital for sustainable development. Hydrogen (H2) energy is considered the ultimate energy in the 21st century because of its diverse sources, cleanliness, low carbon emission, flexibility, and high efficiency. H2 fuel cell vehicles are commonly the end-point application of H2 energy. Owing to their zero carbon emission, they are gradually replacing traditional vehicles powered by fossil fuel. As the H2 fuel cell vehicle industry rapidly develops, H2 fuel supply, especially H2 quality, attracts increasing attention. Compared with H2 for industrial use, the H2 purity requirements for fuel cells are not high. Still, the impurity content is strictly controlled since even a low amount of some impurities may irreversibly damage fuel cells’ performance and running life. This paper reviews different versions of current standards concerning H2 for fuel cell vehicles in China and abroad. Furthermore, we analyze the causes and developing trends for the changes in these standards in detail. On the other hand, according to characteristics of H2 for fuel cell vehicles, standard H2 purification technologies, such as pressure swing adsorption (PSA), membrane separation and metal hydride separation, were analyzed, and the latest research progress was reviewed.

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“…Several research studies have been conducted to study the performance of vanadium (V)-based binary alloys (e.g., V–Pd, V–Al, and V–Ni) and ternary alloys (e.g., V–Ni–Al, V–Ni–Fe, V–Ni–Si, V–Ni–Ti, and V–Ni–Zn). − Tailoring the composition and (thermo-)dynamics of disordered alloys has been done with the aim of controlling hydrogen permeability in membranes, hydrogen storage capacity, kinetics of hydrogen release, and protecting materials against HE. − Although ordered and disordered (alloy) metal-hydrogen systems have been experimentally and theoretically studied, a theoretical description of metal hydrides is still helpful to provide a quantitative description for different characteristics of these materials. ,− …”

Section: Introductionmentioning

confidence: 99%

Investigation of Mechanical, Thermal, Electrical, and Hydrogen Diffusion Properties in Ternary V–Ti–X Alloys: A Density Functional Theory Study

2022

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The effects of alloying and hydrogen dissolution on the mechanical, thermal, and electrical properties of vanadiumbased ternary alloys were investigated using density functional theory. Our study showed that pure V has a lower solution energy than V−Ti−X alloys. Also, tetrahedral interstitial sites are more favorable than octahedral sites to be occupied by the H atoms. Furthermore, the alloys with eight H atoms have a lower capacity than the pure V system for H-trapping at interstitial sites. These findings suggest that H-dissolution in alloys is less probable than in pure V, and the alloys are more resistant to hydrogen embrittlement, crack propagation, and fracture initiation. Indeed, V−Ti−Al shows a reliable performance and could be a viable non-Pd alloy for hydrogen separation. Studying the mechanical properties of pure V and the ternary alloys revealed that V−Ti−Ni provides the highest durability and better resistance to both external and hydrogen dissolution-induced internal stresses. The V−Ti−Pd alloy has a higher diffusion barrier energy (E b = 0.1807 eV) than pure V (E b = 0.1646 eV), indicating that the H atom faces more hindrance when it diffuses across the alloy. Nonetheless, in the hydrogen separation temperature range, the V−Ti−Pd alloy has the largest thermal expansion coefficient (α = 2.048×10 −5 K −1 ), which indicates its poor thermal characteristics. Altogether, the superior mechanical properties of the V−Ti−Ni alloy indicate that it will be resistant to deformation and have a long service life in hydrogen separation applications. The V−Ti−Ni alloy has a higher heat capacity than the others, which is important in exothermic processes like hydrogen separation.

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Extraction of ultrapure hydrogen with V-alloy membranes: From laboratory studies to practical applications

Cited by 24 publications

References 28 publications

Membrane Technologies for Decarbonization

Membrane Technologies for Decarbonization

A Review of Hydrogen Purification Technologies for Fuel Cell Vehicles

Investigation of Mechanical, Thermal, Electrical, and Hydrogen Diffusion Properties in Ternary V–Ti–X Alloys: A Density Functional Theory Study

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