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Nevertheless, ensuring the stability of these nanoparticles remains a critical challenge, impeding their broad application. In this work, novel nanodot arrays (NAs) are introduced where superfine alloy nanoparticles are uniformly implanted in a 2D carbon substrate and securely anchored. Electrochemical testing of the PtCo NAs demonstrates exceptional methanol oxidation reaction (MOR) activity, achieving 1.25 A mg\n                    <jats:sup>\u22121<\/jats:sup>\n                    . Moreover, the PtCo NAs exhibit outstanding stability throughout the testing period, underscoring the effectiveness of the anchoring mechanism. Comprehensive characterization and theoretical calculations reveal that the 2D carbon\u2010anchored structure optimizes the electronic structure and coordination environment of Pt, restricts nanoparticle migration, and suppresses transition metal dissolution. This strategy represents a major advancement in addressing the stability limitations of ultrafine nanoparticles in catalytic applications and offers broader insights into the design of next\u2010generation catalysts with enhanced durability and performance.\n                  <\/jats:p>","DOI":"10.1002\/smtd.202401717","type":"journal-article","created":{"date-parts":[[2024,12,16]],"date-time":"2024-12-16T07:00:32Z","timestamp":1734332432000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["2D Carbon\u2010Anchored Platinum\u2010Based Nanodot Arrays as Efficient Catalysts for Methanol Oxidation Reaction"],"prefix":"10.1002","volume":"9","author":[{"given":"Zhen","family":"Xu","sequence":"first","affiliation":[{"name":"Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology School of Materials Science and Engineering Hebei University of Technology  Tianjin 300401 P. R. 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