{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T15:44:45Z","timestamp":1792079085241,"version":"4.4.0"},"reference-count":36,"publisher":"Wiley","issue":"36","license":[{"start":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T00:00:00Z","timestamp":1782950400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T00:00:00Z","timestamp":1782950400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["22301287"],"award-info":[{"award-number":["22301287"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Angew Chem Int Ed"],"published-print":{"date-parts":[[2026,9,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Artificial ion nanochannels enabling precise discrimination between monovalent and multivalent cations are essential for resource recovery and ion separation. However, due to the inadequate differentiation of their transmembrane energy barriers, these nanochannels still face challenges in achieving high permeability alongside high selectivity. Herein, we report that a trisodium citrate\u2010mediated MXene laminar membranes (MLM\u2010CA\u20103Na) possess highly permeable and selective Li\n                    <jats:sup>+<\/jats:sup>\n                    \/Ca\n                    <jats:sup>2+<\/jats:sup>\n                    separation. As confirmed by aberration\u2010corrected high\u2010angle annular dark\u2010field scanning transmission electron microscopy and X\u2010ray absorption spectroscopy, the uniform stacking of the citrate ligand\/Na\n                    <jats:sup>+<\/jats:sup>\n                    synergistically modified MXene monolayer nanosheets has achieved highly ordered confined subnanochannels of MLM\u2010CA\u20103Na membranes. Molecular dynamics simulations, potential of mean force calculations, and transport energy barrier analysis revealed that the confined subnanochannels of MLM\u2010CA\u20103Na membranes efficiently regulate the dehydration and transport behaviors of Li\n                    <jats:sup>+<\/jats:sup>\n                    and Ca\n                    <jats:sup>2+<\/jats:sup>\n                    , leading to a pronounced differentiation in their transmembrane energy barriers. The obtained MLM\u2010CA\u20103Na membranes exhibited a Li\n                    <jats:sup>+<\/jats:sup>\n                    permeation rate of 0.0725\u00a0mol m\n                    <jats:sup>\u22122<\/jats:sup>\n                    h\n                    <jats:sup>\u22121<\/jats:sup>\n                    , a Li\n                    <jats:sup>+<\/jats:sup>\n                    \/ Ca\n                    <jats:sup>2+<\/jats:sup>\n                    selectivity of 84, and long\u2010term durability over 100\u00a0h. This work identifies ligand\u2010cation interactions as key regulators for ion separation, providing a design paradigm for sustainable lithium extraction.\n                  <\/jats:p>","DOI":"10.1002\/anie.3260771","type":"journal-article","created":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T16:23:49Z","timestamp":1783009429000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Alkali Cations Mediated Subnanochannels in MXene Membranes for Enhanced Selective Ion Transport"],"prefix":"10.1002","volume":"65","author":[{"given":"Wanglei","family":"Xian","sequence":"first","affiliation":[{"name":"Sanya Science and Education Innovation Park of Wuhan University of Technology  Sanya China"},{"name":"School of Materials Science and Engineering Wuhan University of Technology  Wuhan 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