Composite metal-ceramic heterostructure for membranes of deep purification of hydrogen

Иевлев, В. М.; Maksimenko, A. A.; Ситников, А. И.; Солнцев, К. А.; Chernyavskiy, A. S.; Донцов, А. И.

doi:10.1134/s2075113316040122

Cited by 8 publications

(2 citation statements)

References 4 publications

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“…To achieve acceptable performance, such membranes should be as thin as possible, while acceptable strength characteristics are achieved only for membranes with a thickness of at least 25-30 μm. Therefore, composite membranes representing a thin film of palladium or its alloy deposited on highly porous nonselective carriers are considered to be very promising [181][182][183]. It should be noted that some metals, in particular vanadium, have higher hydrogen permeability than palladium.…”

Section: Membrane Technologies For Hydrogen Productionmentioning

confidence: 99%

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: 99%

Membrane Technologies for Decarbonization

Alent’ev

Волков

Воротынцев

et al. 2021

Membr. Membr. Technol.

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“…The ceramic separation membranes belong to the solid membrane material in the inorganic membrane separation technology. The achievement of separation, purification, impurity removal, and sterilization is realized according to the screening theory [1,2]. Ceramic membranes offer several better beneficial options than polymeric membranes including good combinations of thermal, mechanical and chemical stability, so that the research and development of inorganic membranes have been developed rapidly [3,4].…”

Section: Introductionmentioning

confidence: 99%

Research on performance optimization of Loess-based ceramic membrane supports with Bauxite-dolomite-talc as additives

Tong

Liu

Yang

et al. 2022

Mater. Res. Express

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Inorganic ceramic membranes have attracted much attention due to their advantages of long life, acid and alkali corrosion resistance, and easy cleaning, but they have not been widely used due to the high cost. In order to obtain a ceramic membrane with low cost and good performance, in this paper, loess-based ceramic membrane support was prepared by using loess as raw material, bauxite as aluminum source, dolomite as pore-forming agent and talc as plasticizer. . Response surface optimization was used to determine the optimal addition parameters of ingredients. In addition, the factors affecting the performance of the supports were analyzed in terms of material composition, microscopic morphology, and porosity. The results show that the addition of talc conduced to avoid the negative impact of the pore-forming effect of dolomite on the mechanical strength of the support, and the optimum proportioning parameters are 48.85 wt% of bauxite, 9.93 wt% of dolomite and 8 wt% of talc. Under this condition, the bending strength was 42.24 MPa, the pure water flux was 8323.73 L·m-2·h-1·MPa-1, and the average pore throat radius was 5.15 μm. The performance of the best sample reaches the application performance of porous ceramic supports, which provides a theoretical basis for the wide application of low-cost ceramic membrane supports.

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Hydrogen energy: development prospects and materials

2021

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The review addresses the prospects of global hydrogen energy development. Particular attention is given to the design of materials for sustainable hydrogen energy applications, including hydrogen production, purification, storage, and conversion to energy. The review highlights the key role of oxide-supported metal or alloy nanoparticles as catalysts in the hydrogen production via the conversion of natural gas or alcohols. An alternative approach is the pyrolysis of hydrocarbons giving hydrogen and carbon. The direct production of high-purity hydrogen can be performed using electrolysis or membrane catalysis. Apart from conventional hydrogen storage methods such as the compression and liquefaction, the hydrogen alloy absorption and chemical conversion to liquid carriers (ammonia and toluene cycles) are considered. Fuel cells, containing catalysts and proton-conducting membranes as the key components, are used for hydrogen energy generation. Binary platinum alloys or core – shell structures supported on carbon or oxides can be employed to facilitate the oxygen electroreduction and CO electrooxidation in low-temperature fuel cells. High conductivity and selectivity are provided by perfluorinated sulfonic acid membranes. The high cost of the latter materials dictates the development of alternative membrane materials. A crucial issue in high-temperature fuel cells is the necessity of reducing the operating temperature and ohmic losses. This problem can be solved by designing thin-film materials and replacing oxygen-conducting ceramic membranes by proton-conducting membranes. The bibliography includes 290 references.

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Composite metal-ceramic heterostructure for membranes of deep purification of hydrogen

Cited by 8 publications

References 4 publications

Membrane Technologies for Decarbonization

Membrane Technologies for Decarbonization

Research on performance optimization of Loess-based ceramic membrane supports with Bauxite-dolomite-talc as additives

Hydrogen energy: development prospects and materials

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