Selective Separation of Singly Charged Chloride and Dihydrogen Phosphate Anions by Electrobaromembrane Method with Nanoporous Membranes

Butylskii, D. Yu.; Troitskiy, V. A.; Chuprynina, Daria; Kharchenko, Ivan; Ryzhkov, Ilya I.; Apel, P. Yu.; Pismenskaya, Natalia; Nikonenko, Victor

doi:10.3390/membranes13050455

Cited by 10 publications

(3 citation statements)

References 70 publications

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“…Currently, the most popular and effective technology for high-purity hydrogen evolution is membrane separation. Over the past few decades, membrane technology has been developed and investigated to meet various requirements of different applications [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ]. It has a number of advantages, such as low energy consumption, the ability to conduct continuous separation, easy scaling, and the ability to combine with other separation technologies [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Permeability of Composite Pd–Au/Pd–Cu Membranes and Methods for Their Preparation

2023

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Thin Pd–40%Cu films were obtained via the classical melting and rolling method, magnetron sputtering, and modified with nanostructured functional coatings to intensify the process of hydrogen transportation. The films were modified by electrodeposition, according to the classical method of obtaining palladium black and “Pd–Au nanoflowers” with spherical and pentagonal particles, respectively. The experiment results demonstrated the highest catalytic activity (89.47 mA cm−2), good resistance to CO poisoning and long-term stability of Pd–40%Cu films with a pentagonal structured coating. The investigation of the developed membranes in the hydrogen transport processes in the temperature range of 25–300 °C also demonstrated high and stable fluxes of up to 475.28 mmol s−1 m−2 (deposited membranes) and 59.41 mmol s−1 m−2 (dense metal membranes), which were up to 1.5 higher, compared with membrane materials with classic niello. For all-metal modified membranes, the increase in flux was up to sevenfold, compared with a smooth membrane made of pure palladium, and for deposited films, this difference was manyfold. The membrane materials’ selectivity was also high, up to 4419. The developed strategy for modifying membrane materials with functional coatings of a fundamentally new complex geometry can shed new light on the development and fabrication of durable and highly selective palladium-based membranes for gas steam reformers.

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Section: Introductionmentioning

confidence: 99%

Hydrogen Permeability of Composite Pd–Au/Pd–Cu Membranes and Methods for Their Preparation

2023

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“…Separated ions of the same charge sign move in an electric field through the pores of this membrane to the corresponding electrode, while a commensurate counter convective flow is created in the pores. The selectivity of separation is achieved due to the difference in the mobility of the competing ions [ 19 , 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Application of Hybrid Electrobaromembrane Process for Selective Recovery of Lithium from Cobalt- and Nickel-Containing Leaching Solutions

et al. 2023

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New processes for recycling valuable materials from used lithium-ion batteries (LIBs) need to be developed. This is critical to both meeting growing global demand and mitigating the electronic waste crisis. In contrast to the use of reagent-based processes, this work shows the results of testing a hybrid electrobaromembrane (EBM) method for the selective separation of Li+ and Co2+ ions. Separation is carried out using a track-etched membrane with a pore diameter of 35 nm, which can create conditions for separation if an electric field and an oppositely directed pressure field are applied simultaneously. It is shown that the efficiency of ion separation for a lithium/cobalt pair can be very high due to the possibility of directing the fluxes of separated ions to opposite sides. The flux of lithium through the membrane is about 0.3 mol/(m2 × h). The presence of coexisting nickel ions in the feed solution does not affect the flux of lithium. It is shown that the EBM separation conditions can be chosen so that only lithium is extracted from the feed solution, while cobalt and nickel remain in it.

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“…Nowadays, the most popular and effective technology for high-purity hydrogen evolution is the membrane separation. Over the past few decades, membrane technology has been developed and investigated to meet various requirements of different applications [1][2][3][4][5][6][7]. It has a number of advantages, such as low energy consumption, the ability to conduct continuous separation, easy scaling and the ability to combine with other separation technologies [8,9].…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Permeability of Composite Pd-Au/Pd-Cu Membranes and Methods for Their Preparation

Pushankina¹,

Andreev²,

Петриев³

2023

Preprint

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Thin Pd-40%Cu films were obtained by the classical melting and rolling method, magnetron sputtering and modified with nanostructured functional coatings to intensify the process of hydrogen transport. The films were modified by electrodeposition according to the classical method of obtaining palladium black and "Pd-Au nanoflowers" with spherical and pentagonal particles, respectively. The experiment results demonstrated the highest catalytic activity (89.47 mA cm–2), good resistance to CO poisoning and long-term stability of Pd-40%Cu films with a pentagonal structured coating. The investigation of the developed membranes in the hydrogen transport processes in the temperature range of 25-300°C also demonstrated high and stable fluxes up to 475.28 mmol s–1 m–2 (deposited membranes) and 59.41 mmol s–1 m–2 (dense-metal membranes), which turned out to be up to 1.5 higher compared to membrane materials with classic niello. For all-metal modified membranes, the increase in flux was up to 7 times, compared with a smooth membrane made of pure palladium, and for deposited films, this difference was several tens of times. The membrane materials selectivity was also high up to 4419. The developed strategy for modifying membrane materials with functional coatings of a fundamentally new complex geometry can shed new light on the development and fabrication of durable and highly selective palladium-based membranes for gas steam reformers.

show abstract

Selective Separation of Singly Charged Chloride and Dihydrogen Phosphate Anions by Electrobaromembrane Method with Nanoporous Membranes

Cited by 10 publications

References 70 publications

Hydrogen Permeability of Composite Pd–Au/Pd–Cu Membranes and Methods for Their Preparation

Hydrogen Permeability of Composite Pd–Au/Pd–Cu Membranes and Methods for Their Preparation

Application of Hybrid Electrobaromembrane Process for Selective Recovery of Lithium from Cobalt- and Nickel-Containing Leaching Solutions

Hydrogen Permeability of Composite Pd-Au/Pd-Cu Membranes and Methods for Their Preparation

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