Concave Pt-Cu-Fe ternary nanocubes: One-pot synthesis and their electrocatalytic activity of methanol and formic acid oxidation

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• 作者：Ying-Xia Wang^a ; ^b ; ^{yxwang@qdu.edu.cn} ; Chuan-Fei Liu^a ; Man-Li Yang^b ; Xi-Hui Zhao^a ; Zhi-Xin Xue^a ; Yan-Zhi Xia^a ; ^c ;
• 关键词：Pt-Cu-Fe NCs ; Nanoparticles ; Metals and alloys ; Methanol oxidation ; Formic acid oxidation
• 刊名：Chinese Chemical Letters
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：28
• 期：1
• 页码：60-64
• 全文大小：1296 K
• 卷排序：28

文摘

Concave nanostructures may be developed to improve the specific mass activity of a catalyst for formic acid and methanol electro-oxidation. In this work, we report the elctrocatalytic oxidation of methanol and formic acid in acid medium over concave Pt-Cu-Fe ternary nanocubes (NCs), obtained by the galvanic exchange of Pt and Fe on Cu NCs. The concave Pt-Cu-Fe NCs exhibited improved electro-oxidation performance contrasted to Pt-Cu NCs and purchased commercial Pt/C as demonstrated by their improved durability, lower onset potential, and more preferable anti-poisoning properties. These properties are believed to originate from the tailored concave structure of the catalyst and possible synergetic effects among the components of the Pt-Cu-Fe NCs.