Abstract It is of great significance to fabricate the Pt-based alloys with high catalytic activity, as well as the robust stability for methanol oxidation reaction (MOR) and formic acid oxidation reaction (FAOR). In this work, Pt-Fe alloy nanocrystals with concave nanocube and nano-flower structures are successfully synthesized by a simple one-pot method using polyvinylpyrrolidone and glycine as the dual reductants and dual protecting agents. Remarkably, the Pt-Fe nano-flower nanocrystals showed much higher electrocatalytic activity and stability toward MOR (FAOR), which was almost 9 (10) times greater than that of Pt black and 13 (15) times greater than that of commercial Pt/C catalyst. The excellent electro-catalytic performance is ascribed to the unique nano-flower morphology and bimetallic alloy composition.
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Qin et al. (2024) studied this question.
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