Direct Synthesis of Spatially-Controlled Pt-on-Pd Bimetallic Nanodendrites with Superior Electrocatalytic Activity
Direct Synthesis of Spatially-Controlled Pt-on-Pd Bimetallic Nanodendrites with Superior Electrocatalytic Activity
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DOI：
10.1021/ja202655j
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发表时间：
2011-06-29
影响因子：
15
通讯作者：
Yamauchi, Yusuke
中科院分区：
文献类型：
--
作者：
Wang, Liang;Nemoto, Yoshihiro;Yamauchi, Yusuke
在这里，我们报告了一个简单的合成Pt-on-Pd纳米枝晶与Pd内部和树枝状Pt外部。所开发的路线合理地利用了Pd和Pt的沉积的自发分离，这使得直接形成Pt-on-Pd纳米枝晶。这是一个真正简单而独特的过程，与传统的种子介导的增长策略截然不同。微调的Pt和Pd的比例提供铂-钯纳米枝晶与商业Pt电催化剂相比，具有上级的电催化活性。
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.