ArticleScience advances2020
Intrapore energy barriers govern ion transport and selectivity of desalination membranes.
Article in Science advances, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.
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Who cites it
55 citing papers in PubMed, 324 citations in OpenAlex.
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- Mechanistic insights into water transport in electrified desalination: Osmosis and electroosmosis decoupled.Science advances · 2026Article
- MXene membrane with directionally functionalized channel entrances for enhanced ion selectivity and permeability.Nature communications · 2026Article
- Macrocycle-based covalent organic networks for ultrafast sub-1-Å precision ion sieving.Science advances · 2026Article
- Friction-differentiated separation of alkali ions through two-dimensional nanochannels based on niobate perovskite.Nature communications · 2026Article
- Matter in ångström-scale two-dimensional confinement.Nature reviews. Chemistry · 2026Review
- Engineering biomimetic chloride channels in ultramicroporous hydrogen-bonded organic framework membranes for high-salinity wastewater valorization.Nature communications · 2026Article
- COF Scaffold Membrane with Gate-Lane Nanostructure for Efficient LiNano-micro letters · 2026Article
- Biomimetic action-potential transmission via mechano-gated potassium channels assembled by quadruple hydrogen-bonded crown ethers.Science advances · 2026Article
- Energy-autonomous KCl extraction from brine via biomimetic covalent-organic-framework membranes and redox-driven ion transport.Nature communications · 2025Article
- Simultaneous voltage-gated control of ion and water transport in ZrNature communications · 2025Article
- Role of Ion Dehydration in Ion-Ion Selectivity of Dense Membranes.Environmental science & technology · 2025Review
- Electrostatic-driven dehydration of ions in nanoporous membranes.Science advances · 2025Article
- Molecular manipulation of polyamide nanostructures reconciles the permeance-selectivity threshold for precise ion separation.Nature communications · 2025Article
- Review
- Deciphering co-ion and counterion transport in polyamide desalination membranes reveals ion selectivity mechanisms.Science advances · 2025Article
- Article
- Approaching infinite selectivity in membrane-based aqueous lithium extraction via solid-state ion transport.Science advances · 2025Article
- Machine Learning-Aided Inverse Design and Discovery of Novel Polymeric Materials for Membrane Separation.Environmental science & technology · 2025Review
Corrections and comments
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Authors and funding
9 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
State-of-the-art desalination membranes exhibit high water-salt selectivity, but their ability to discriminate between ions is limited. Elucidating the fundamental mechanisms underlying ion transport and selectivity in subnanometer pores is therefore imperative for the development of ion-selective membranes. Here, we compare the overall energy barrier for salt transport and energy barriers for individual ion transport, showing that cations and anions traverse the membrane pore in an independent manner. Supported by density functional theory simulations, we demonstrate that electrostatic interactions between permeating counterion and fixed charges on the membrane substantially hinder intrapore diffusion. Furthermore, using quartz crystal microbalance, we break down the contributions of partitioning at the pore mouth and intrapore diffusion to the overall energy barrier for salt transport. Overall, our results indicate that intrapore diffusion governs salt transport through subnanometer pores due to ion-pore wall interactions, providing the scientific base for the design of membranes with high ion-ion selectivity.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.