Kinetically Controlled Synthesis of Pt-Based One-Dimensional Hierarchically Porous Nanostructures with Large Mesopores as Highly Efficient ORR Catalysts

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• 作者：Shaofang Fu ; Chengzhou Zhu ; Junhua Song ; Mark H Engelhard ; Haibing XiaDan Du ; Yuehe Lin
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：December 28, 2016
• 年：2016
• 卷：8
• 期：51
• 页码：35213-35218
• 全文大小：422K
• ISSN：1944-8252

文摘

Rational design and construction of Pt-based porous nanostructures with large mesopores have triggered significant considerations because of their high surface area and more efficient mass transport. Hydrochloric acid-induced kinetically controlled reduction of metal precursors in the presence of soft template F-127 and hard template tellurium nanowires has been successfully demonstrated to construct one-dimensional hierarchical porous PtCu alloy nanostructures with large mesopores. Moreover, the electrochemical experiments demonstrated that the PtCu hierarchically porous nanostructures synthesized under optimized conditions exhibit enhanced electrocatalytic performance for oxygen reduction reaction in acid media.