An extended Teorell-Meyer-Sievers theory for membrane potential under non-isothermal conditions

Zhang, Wenyao; Yan, Huilong; Wang, Qiuwang; Zhao, Cunlu

doi:10.1016/j.memsci.2021.120073

Cited by 11 publications

(7 citation statements)

References 55 publications

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“…For the former, a refined model would be developed to calculate the access resistance self-consistently with higher precision. In addition, other effects, such as the temperature dependence of the surface charge density [54] or zeta potential [55], the slippage on the nanopore wall [36], the activity coefficient correction [56],…”

Section: Discussionmentioning

confidence: 99%

Simultaneous thermoosmotic and thermoelectric responses in nanoconfined electrolyte solutions: Effects of nanopore structures and membrane properties

Zhang

Farhan

Jiao

et al. 2022

Journal of Colloid and Interface Science

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Section: Discussionmentioning

confidence: 99%

Simultaneous thermoosmotic and thermoelectric responses in nanoconfined electrolyte solutions: Effects of nanopore structures and membrane properties

Zhang

Farhan

Jiao

et al. 2022

Journal of Colloid and Interface Science

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“…As the concentration increases, the sign of ψ( r ) changes due to more counterion’s adsorption at the first layer near the walls of the membrane, as shown in the inset plot in Figure a. The other point which we should consider is the diffusion potential, DP, the difference potential of inner and outer membrane walls, which decreases with the concentration. − This potential is responsible for the transportation of ions through the membrane, and its value is influenced by size and surface charge. Finally, in region II, within the membrane, the MEP increases with distance and concentration, while the slope of ψ( r ) versus r decreases with concentration.…”

Section: Resultsmentioning

confidence: 99%

Modeling the Electric Double Layer at the Liposome Vesicle via Classical Density Functional Theory: Solution of Poisson’s Equations for Curved Membranes

Keshavarzi,

Abareghi,

Mohammadi

2024

Langmuir

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The electric double layer at the liposome vesicle membrane has been investigated by a modified fundamental-measure theory in the framework of the restricted primitive model. An analytical equation has been obtained for the mean electrostatic potential (MEP) by solving Poisson's equation for curved membranes. This study investigates the influence of vesicle size, membrane thickness, surface charges, and electrolyte concentration on the structure, composition, and width of electric double layers (EDLs) on the inner and outer membrane walls. Our findings indicate that a thin and denser layer of ions is formed at the concave wall of the membrane (inner wall) compared to that at the outer membrane. As expected, the width of the diffuse layer decreases with the concentration and surface charge. Also, when the surface charges on both concave and convex walls are the same, the absolute value of MEPs on the inner membrane, concave wall, is greater than that on the convex wall. We have also investigated the diffuse potential, which decreases with concentration, membrane thickness, and cavity size, whereas it increases with surface charges. As we expect, the contact density of counterions at the inner concave wall of the vesicle cavity is always greater than the corresponding value at the convex wall, whereas this trend reverses for co-ions. Also, the contact density of counterions (co-ions) at the inner wall decreases (increases) with cavity size, whereas it increases at the outer wall (decreases). Finally, depletion of co-ions occurs at the membrane walls with enhancement in surface charges.

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“…Also, the different cation transport rates of the LATP/AEP membranes were demonstrated by the diffusion results of the single salt solutions (Figure S16). With the rapid diffusion of Li ions, a crossmembrane potential could be generated, which facilitated supplementary chloride ion transport . To demonstrate the diffusion capability of the dual-channel membrane, the Li + and Cl – ion transport rate was measured and with a 24 h diffusion process of 0.1 M LiCl solution.…”

Section: Resultsmentioning

confidence: 99%

“…With the rapid diffusion of Li ions, a crossmembrane potential could be generated, which facilitated supplementary chloride ion transport. 53 To demonstrate the diffusion capability of the dual-channel membrane, the Li + and Cl − ion transport rate was measured and with a 24 h diffusion process of 0.1 M LiCl solution. In addition, the low-porosity LATP/AEP membrane showed the Li + ion flux of 23.0 ± 3.1 mmol•m −2 •h −1 and the Cl − ion flux of 20.4 ± 2.9 mmol•m −2 •h −1 , which were calculated to the diffusion coefficients of 5.08 × 10 −7 cm 2 •s −1 for Li + ions and 4.51 × 10 −7 cm 2 •s −1 for Cl − ions.…”

Section: Modification Of the Membranementioning

confidence: 99%

Dual-Channel-Ion Conductor Membrane for Low-Energy Lithium Extraction

Ma,

Xia,

Wang

et al. 2023

Environ. Sci. Technol.

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The development of energy-efficient and environmentally friendly lithium extraction techniques is essential to meet the growing global demand for lithium-ion batteries. In this work, a dual-channel ion conductor membrane was designed for a concentration-driven lithium-selective ion diffusion process. The membrane was based on a porous lithium-ion conductor, and its pores were modified with an anion-exchange polymer. Thus, the sintered lithium-ion conductors provided highly selective cation transport channels, and the functionalized nanopores with positive charges enabled the complementary permeation of anions to balance the transmembrane charges. As a result, the dual-channel membrane realized an ultrahigh Li + /Na + selectivity of ∼1389 with a competitive Li + flux of 21.6 mmol•m −2 •h −1 in a diffusion process of the LiCl/NaCl binary solution, which was capable of further maintaining the high selectivity over 7 days of testing. Therefore, this work demonstrates the great potential of the dual-channel membrane design for high-performing lithium extraction from aqueous resources with low energy consumption and minimal environmental impact.

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An extended Teorell-Meyer-Sievers theory for membrane potential under non-isothermal conditions

Cited by 11 publications

References 55 publications

Simultaneous thermoosmotic and thermoelectric responses in nanoconfined electrolyte solutions: Effects of nanopore structures and membrane properties

Simultaneous thermoosmotic and thermoelectric responses in nanoconfined electrolyte solutions: Effects of nanopore structures and membrane properties

Modeling the Electric Double Layer at the Liposome Vesicle via Classical Density Functional Theory: Solution of Poisson’s Equations for Curved Membranes

Dual-Channel-Ion Conductor Membrane for Low-Energy Lithium Extraction

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