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首页> 外文期刊>Chemistry: A European journal >Displacement Plating of a Mesoporous Pt Skin onto Co Nanochains in a Low-Concentration Surfactant Solution
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Displacement Plating of a Mesoporous Pt Skin onto Co Nanochains in a Low-Concentration Surfactant Solution

机译：在低浓度表面活性剂溶液中将介孔铂皮置换电镀到Co纳米链上

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摘要

Mesoporous Pt skins on Co nanochains are successfully synthesized by a displacement reaction between Pt species and a Co support with the assistance of surfactant micelles. The assembly of surfactant micelles on Co nanochains plays a key role in the formation of mesoporous Pt layers. The evolution of the mesoporous Pt layers is carefully studied at different time intervals. As the reaction time increases, the mesoporous Pt layers become thicker, and well-defined mesoporous structures gradually develop. The obtained mesoporous Pt skin exhibits high activity and superior CO tolerance in the electro-oxidation reaction of methanol. The mesoporous Pt skin also shows very high durability, and only a 20.2% loss of the Pt electrochemical surface area is found even after a harsh durability test.
机译：通过在表面活性剂胶束的帮助下，Pt物种与Co载体之间的置换反应成功地合成了Co纳米链上的中孔Pt皮。 Co纳米链上的表面活性剂胶束的组装在介孔Pt层的形成中起关键作用。在不同的时间间隔仔细研究了介孔铂层的演化。随着反应时间的增加，中孔Pt层变厚，并逐渐形成明确的中孔结构。所得的中孔Pt皮在甲醇的电氧化反应中显示出高活性和优异的CO耐受性。介孔的Pt蒙皮也显示出很高的耐久性，即使经过严格的耐久性测试，也仅发现Pt电化学表面积的20.2％损失。

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