Опубликована: Янв. 1, 2024
Язык: Английский
The Journal of Physical Chemistry Letters, Год журнала: 2024, Номер 15(30), С. 7793 - 7798
Опубликована: Июль 25, 2024
Multipore membranes with nanofluidic diodes show memristive and current rectifying effects that can be controlled by the nanostructure asymmetry ionic solution characteristics in addition to frequency amplitude of electrical driving signal. Here, we conduction phenomena, which are modulated interaction between pore surface charges mobile ions, allow for a pH-dependent neuromorphic-like potentiation membrane conductance voltage pulses. Also, demonstrate arrangements memristors employed design electrochemical circuits implementing logic functions information processing iontronics.
Язык: Английский
Процитировано
10
Science Advances, Год журнала: 2025, Номер 11(9)
Опубликована: Фев. 28, 2025
As the gap between lithium supply and demand continues to widen, need develop ion-selective technologies, which can efficiently extract from unconventional water sources, grows increasingly crucial. In this study, we investigated fundamentals of applying a solid-state electrolyte (SSE), typically used in battery as membrane material for aqueous extraction. We find that anhydrous hopping ions through ordered confined SSE lattice is highly distinct ion migration hydrated free volumes conventional nanoporous membranes, thus culminating unique transport properties. Notably, reveal provides unparalleled performance with respect ion-ion selectivity, consistently demonstrating selectivity values are immeasurable by even part-per-billion detection limit mass spectrometry. Such exceptional shown be result characteristic size charge exclusion mechanisms transport, may leveraged design next-generation membranes resource recovery.
Язык: Английский
Процитировано
1
Nature Chemical Engineering, Год журнала: 2025, Номер unknown
Опубликована: Апрель 11, 2025
Язык: Английский
Процитировано
1
Environmental Science & Technology, Год журнала: 2024, Номер 58(43), С. 19486 - 19500
Опубликована: Окт. 18, 2024
Recycling spent lithium-ion batteries offers a sustainable solution to reduce ecological degradation from mining and mitigate raw material shortages price volatility. This study investigates using electrodialysis with selective bipolar ion-exchange membranes establish circular economy for batteries. An experimental data set of over 1700 ion concentration measurements across five current densities, two compositions, three pH levels supports the techno-economic analysis. Selective (SED) isolates lithium ions battery leachates, yielding 99% Li-pure retentate 68.8% retention, achieving relative ionic fluxes up 2.41 Li+ transition metal cations selectivity 5.64 monovalent cations. Bipolar membrane (BMED) converts LiCl into high-purity LiOH HCl, essential remanufacturing reducing acid consumption via recycling. High densities leakage, leakage as low 0.03%, though hydronium hydroxide in BMED remains high at 11–20%. Our analysis projects production costs between USD 1.1 3.6 per kilogram, significantly lower than prices. Optimal SED conditions are identified, emphasizing need control proton transport improve cobalt–lithium separation enhance cost efficiency.
Язык: Английский
Процитировано
6
The Journal of Physical Chemistry B, Год журнала: 2025, Номер unknown
Опубликована: Янв. 23, 2025
This study delves into the interplay of temperature, composition, tortuosity, and electrostatic interactions on ion diffusion within cation exchange membranes. It explores temperature dependence (16-60 °C) self-diffusion coefficients (SDCs) Ba2+ Eu3+ ions Nafion 117 membrane, particularly in presence Na+ ions. Radiotracer techniques electrochemical impedance spectroscopy were employed to investigate these SDCs. Significant differences observed between SDCs both monoionic (only Na+, Ba2+, or Eu3+) binary (Ba2+-Na+ Eu3+-Na+) systems. Temperature-induced reduction water uptake was probed by gravimetric as well 3H radiotracer for first time, effect tortuosity factor understood. enabled quantification interaction a function revealing decreasing trend with increasing mono- An attempt also made correlate activation energy (Arrhenius-type plots) net potential this range. The findings indicate that is primarily influenced interaction, especially multivalent ions, while plays negligible role determining overall trend.
Язык: Английский
Процитировано
0
Current Opinion in Chemical Engineering, Год журнала: 2025, Номер 48, С. 101103 - 101103
Опубликована: Фев. 20, 2025
Язык: Английский
Процитировано
0
ACS Applied Energy Materials, Год журнала: 2025, Номер unknown
Опубликована: Фев. 20, 2025
Язык: Английский
Процитировано
0
The Journal of Physical Chemistry B, Год журнала: 2025, Номер unknown
Опубликована: Апрель 30, 2025
Thermodynamics of mobile ions in swollen ion exchange membranes (IEM) are essential for understanding their permselectivity. The theoretical modeling the activity coefficient and partitioning IEM is challenging. Based on a water-swollen membrane reference state quasi-regular solution model, we successfully correlated various IEMs. For all studied 59 systems, correlation r determination R2 0.973 0.947, respectively. As expected, water between external salt represented. In new theory framework, standard chemical potential counterion different from that aqueous solution. Moreover, reaches unity infinite dilution concentration systems. Our model only considered short-range interactions co-ions "effective free counterion", but it showed excellent ability with data extensive A power-law relation effective apparent was suggested. This indicates long-range electrostatic negligible due to abundant condensation shielding charge polymer chain.
Язык: Английский
Процитировано
0
ACS Applied Polymer Materials, Год журнала: 2024, Номер 6(11), С. 6192 - 6198
Опубликована: Май 28, 2024
Thin-film ionomers, pivotal in the function of fuel-cell catalyst layers (CLs), are undercharacterized compared to their bulk membrane counterparts, especially with respect cation effects. Cerium cations, used as an additive membranes, tend migrate from into CL ionomer during operation. This study investigates whether cerium doping perfluorinated sulfonic acid changes under confinement (to a nanometer thin film) and affects hydration behavior. Confinement has negligible effect on ionomer's partitioning, yet it reduces water uptake. Thus, replaces protons similarly or ionomer; however, its presence thermodynamics differently.
Язык: Английский
Процитировано
2
ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(34), С. 45433 - 45446
Опубликована: Авг. 13, 2024
Electrochemical technologies for water treatment, resource recovery, energy generation, and storage rely on charged polymer membranes to selectively transport ions. With the rise of applications involving hypersaline brines, such as management desalination brine or recovery ions from there is an urgent need that can sustain high conductivity selectivity under challenging conditions. Current are constrained by inherent trade-off between selectivity, alongside concerns regarding their costs. Moreover, a gap in fundamental understanding ion within at salinities prevents development could meet these stringent requirements efficiently. Here, we present synthesis scalable, highly demonstrate while contacting 1 5 molal NaCl solutions. A detailed analysis membrane properties reveals proportion bound membranes, enabled charge content hydrophilic structure polymers, enhances both partitioning diffusion selectivities membranes. These structure/property relationships derived this study offer valuable guidance designing next-generation simultaneously achieve exceptional high-salinity
Язык: Английский
Процитировано
2