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Here, we present a praseodymium (Pr) doping strategy that simultaneously tailors the electronic structure and pore architecture of nickel\u2013iron layered double hydroxide (NiFe\u2010LDH). Atomically dispersed Pr\n                    <jats:sup>3+<\/jats:sup>\n                    expands\u00a0the interlayer spacing from 0.76 to 0.81\u00a0nm and\u00a0refines\u00a0the mesoporous network,\u00a0increasing Brunauer\u2013Emmett\u2013Teller (BET) surface area by 13.4% and decreasing the average BJH desorption pore size by 12.8%. Strong Pr\u2500O covalency downshifts the Ni 3d band center and reinforces Ni\u2500O hybridization, as corroborated by X\u2010ray absorption spectroscopy and density functional theory (DFT). These synergistic effects switch\u00a0the OER rate\u2010determining step (RDS) from\n                    <jats:sup>*<\/jats:sup>\n                    O \u2192\n                    <jats:sup>*<\/jats:sup>\n                    OOH (\u0394G = 0.74\u00a0eV) to\n                    <jats:sup>*<\/jats:sup>\n                    OH \u2192\n                    <jats:sup>*<\/jats:sup>\n                    O (\u0394G = 0.28\u00a0eV).\u00a0The optimized Ni\n                    <jats:sub>2<\/jats:sub>\n                    Fe\n                    <jats:sub>0.88<\/jats:sub>\n                    Pr\n                    <jats:sub>0.12<\/jats:sub>\n                    \u2010LDH delivers an overpotential of 407\u00a0mV at 500\u00a0mA\u00a0cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    and\u00a0sustains 2190\u00a0h in half\u2010cell tests. When integrated into an anion exchange membrane (AEM) electrolyzer, it operates continuously for over 1000\u00a0h at industrially relevant current densities, with a moderate voltage drift of 0.202\u00a0V (average degradation rate \u223c0.20\u00a0mV h\n                    <jats:sup>\u22121<\/jats:sup>\n                    ). This work establishes a dual electronic and pore engineering route for durable LDH\u2010based OER catalysts.\n                  <\/jats:p>","DOI":"10.1002\/advs.78238","type":"journal-article","created":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T04:49:28Z","timestamp":1791866968000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Praseodymium\u2010Modulated NiFe Layered Double Hydroxide with Enhanced Oxygen Evolution Activity and Extended Durability"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-8191-265X","authenticated-orcid":false,"given":"Yuanming","family":"Gao","sequence":"first","affiliation":[{"name":"Inner Mongolia Key Laboratory of New Materials and Surface Engineering School of Materials Science and Engineering Inner Mongolia University of Technology  Hohhot China"},{"name":"State Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy Dalian 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