ArticleNature chemistry2026
Hydration entropy of cations regulates chloride ion diffusion during electrochemical chlorine evolution.
Article in Nature chemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Orbital coupling in bridge-mediated FeCu dual-atom catalysts for water decontamination.Nature communications · 2026Article
- Synthesis and Regulation Mechanism of High Entropy Layered Double Hydroxide Electrocatalyst.Small (Weinheim an der Bergstrasse, Germany) · 2026Review
- Elucidating the Role of Alkali-Metal Cations in Nickel Oxide OER Catalysts Under Mild pH Conditions by Operando X-Ray Absorption Spectroscopy.ChemSusChem · 2026Article
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Authors and funding
6 authors.
Funding
Abstract
Impurity ions pose a major challenge towards diversifying water sources for electrolysis. In particular, chloride impurities in low-grade water diminish the selectivity and longevity of water electrolysers. Here we demonstrate that alkali cations can regulate chloride diffusion, allowing a marked improvement in the reaction selectivity of water oxidation. Rotating ring-disk electrode measurements exhibit anomalous positive intercepts in the Levich plot, indicating a diffusional barrier that is cation dependent yet independent of rotational speed. To rationalize this barrier, we propose a simple modification to the Levich model, in which the cation-dependent diffusion coefficient is at least two orders of magnitude lower than that of the bulk solution. The potential of maximum entropy and the structural entropy of hydration both indicate that the diffusion barrier increases when the first hydration shell is structurally rigid (Li
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Registered trials
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