Direct Synthesis of Spatially-Controlled Pt-on-Pd Bimetallic Nanodendrites with Superior Electrocatalytic Activity

详细信息    查看全文

• 作者：Liang Wang ; Yoshihiro Nemoto ; Yusuke Yamauchi
• 刊名：Journal of the American Chemical Society
• 出版年：2011
• 出版时间：June 29, 2011
• 年：2011
• 卷：133
• 期：25
• 页码：9674-9677
• 全文大小：776K
• 年卷期：v.133,no.25(June 29, 2011)
• ISSN：1520-5126

文摘

Here we report a facile synthesis of Pt-on-Pd bimetallic nanodendrites with a Pd interior and dendritic Pt exterior. The developed route rationally utilizes the spontaneous separation of the depositions of Pd and Pt, which endows direct formation of Pt-on-Pd nanodendrites. This is a truly simple and unique process that is quite different from the traditional seed-mediated growth strategy. Fine-tuning of the Pt and Pd ratios afforded Pt-on-Pd nanodendrites with superior electrocatalytic activity in comparison with commercial Pt electrocatalysts.