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Atomic ordering improves structural stability and modulates ligand and strain effects, facilitating optimized adsorption of oxygen\u2010containing intermediates and improved ORR kinetics. This review summarizes recent advances in the synthesis of Pt\u2010based intermetallic nanocrystals, covering low\u2010 and high\u2010temperature strategies, including support\u2010assisted approaches, vacancy engineering, solvothermal synthesis, and solution\u2010phase methods. The relationship between composition, electronic structure, crystal structure, and ORR performance is discussed, with emphasis on the roles of atomic ordering, compositional regulation, and catalyst\u2013support interactions. Finally, current limitations and future directions for the rational design of highly active and durable Pt\u2010based intermetallic electrocatalysts are discussed. 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