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首页> 外文期刊>Chemistry: A European journal >Ionic liquid assisted synthesis of Au-Pd bimetallic particles with enhanced electrocatalytic activity
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Ionic liquid assisted synthesis of Au-Pd bimetallic particles with enhanced electrocatalytic activity

机译：离子液体辅助合成具有增强电催化活性的Au-Pd双金属颗粒

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摘要

Morphology- and composition-controlled synthesis of Au-Pd bimetallic particles was realized by a facile ionic liquid assisted route at room temperature. The morphologies of the synthesized particles, such as nanoflake-constructed spheres with a core-shell structure, nanoparticle- constructed spheres, and nanoparticle-constructed dendrites, could be well controlled by the present route. The ionic liquid was found to play a key role in the formation of these interesting particles. Moreover, the composition (Au:Pd) of the particles could be modulated by means of the molar ratio of the metal precursors in the feeding solutions. The Au-Pd bimetallic particles exhibit high electrocatalytic activity toward oxidation of ethanol and formic acid. Furthermore, cyclic voltammetric studies on the as-prepared Au-Pd bimetallic particles revealed good electroactivity for H_2O _2, which results in an effective amperometric H_2O _2 sensor.
机译：Au-Pd双金属颗粒的形貌和成分控制合成是在室温下通过简便的离子液体辅助路线实现的。合成颗粒的形态，例如具有核-壳结构的纳米薄片构造的球，纳米颗粒构造的球和纳米颗粒构造的树枝状晶体，可以通过本路线很好地控制。发现离子液体在这些有趣的颗粒的形成中起关键作用。此外，可以通过进料溶液中金属前体的摩尔比来调节颗粒的组成（Au：Pd）。 Au-Pd双金属颗粒对乙醇和甲酸的氧化具有很高的电催化活性。此外，对所制备的Au-Pd双金属颗粒的循环伏安研究显示H_2O _2具有良好的电活性，这导致了有效的安培H_2O _2传感器。

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