Fine tuning of the structure of Pt-Cu alloy nanocrystals by glycine-mediated sequential reduction kinetics.
Fine tuning of the structure of Pt-Cu alloy nanocrystals by glycine-mediated sequential reduction kinetics.
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DOI：
10.1002/smll.201203200
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发表时间：
2013-09
期刊：
影响因子：
13.3
通讯作者：
Zhicheng Zhang;Yong Yang;Farhat Nosheen;Peng-peng Wang;Jing-chao Zhang;Zhu Jing;Xun Wang
中科院分区：
文献类型：
--
作者：
Zhicheng Zhang;Yong Yang;Farhat Nosheen;Peng-peng Wang;Jing-chao Zhang;Zhu Jing;Xun Wang
通过简单的湿化学还原途径制备了枝晶形状、蛋黄笼形和箱形结构的均匀Pt-Cu合金纳米晶体，其中甘氨酸被证明可以改变金属阳离子的还原动力学，这对所得产品的形貌至关重要。这些合金纳米晶在甲醇的电氧化中表现出优异的比活性和稳定性。
Uniform Pt-Cu alloy nanocrystals in the shape of dendrite, yolk-cage, and box structures are prepared via a facile wet-chemical reduction route in which glycine is demonstrated to alter the reduction kinetics of metal cations, critical to the morphology of the obtained product. These alloy nanocrystals exhibit superior specific activity and stability in the electro-oxidation of methanol.