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In this manuscript, we develop a square\u2010wave potential (SWP) strategy that efficiently removes ligands from the surface of platinum (Pt)\u2010based nanocatalysts within 1 min (40 s), achieving a removal efficiency 30 times higher than that of traditional cyclic voltammetry cycling. Comprehensive analyses of physical characterization and catalytic performance confirm the effectiveness of the SWP strategy. In situ electrochemical infrared and Raman spectroscopy show that the oxidation potential (1.24\u00a0V) can replace the Pt\u2010N coordination bond with a Pt\u2500O covalent bond to form the intermediate state of Pt\u2010O\u2010NH\n                    <jats:sub>2<\/jats:sub>\n                    R during ligand removal, while the reduction potential (0.20 V) can detach the ligand from the surface of Pt. Moreover, the SWP strategy is versatile, extending the efficient removal of various ligands from the surface of Pt and the oleylamine ligand from Pt\u2010based alloy nanocatalysts. The efficient removal of ligands from nanocatalysts is critical for ensuring the reproducibility of electrocatalytic results and for obtaining clean catalysts to reveal intrinsic effects in nanocatalysis.\n                  <\/jats:p>","DOI":"10.1002\/anie.202509746","type":"journal-article","created":{"date-parts":[[2025,6,5]],"date-time":"2025-06-05T12:00:59Z","timestamp":1749124859000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["Fast Removing Ligands from Platinum\u2010Based Nanocatalysts by a Square\u2010Wave Potential Strategy"],"prefix":"10.1002","volume":"64","author":[{"given":"Rui","family":"Xu","sequence":"first","affiliation":[{"name":"College of Material, Chemistry and Chemical Engineering Key Laboratory of Organosilicon Chemistry and Material Technology Ministry of Education Hangzhou Normal University  Hangzhou Zhejiang 311121 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