Template- and Surfactant-free Room Temperature Synthesis of Self-Assembled 3D Pt Nanoflowers from Single-Crystal Nanowires


  • This work is supported by General Motors of Canada and NSERC. The authors thank Mr. Jean-Philippe Masse at École Polytechnique for his help at TEM facility. Supporting Information is available online from Wiley InterScience or from the authors.


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3D Pt nanoflowers, which are composed of numerous single-crystal nanowires, are successfully synthesized by a facile chemical procedure, at room temperature, without surfactant or template. The Pt nanoflowers adhere to carbon paper, exhibiting an enlarged electroactive surface area comparable to that of a commercial Pt/C electrode.