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首页> 外文期刊>RSC Advances >Facile synthesis of urchin-like RuCu and hollow RuCuMo nanoparticles and preliminary insight to their formation process by cyclic voltammetry
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Facile synthesis of urchin-like RuCu and hollow RuCuMo nanoparticles and preliminary insight to their formation process by cyclic voltammetry

机译：简便地合成顽固型RuCu和中空RuCuMo纳米颗粒及其循环伏安法对其形成过程的初步认识

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摘要

Urchin-like RuCu nanoparticles and hollow RuCuMo nanoparticles were prepared by a one-pot chemical reduction method. The nanoparticles were characterized by EDX, HRTEM, XPS and ICP-AES. By combining cyclic voltammetry and TEM, the formation process of nanoparticles was obtained. The urchin-like RuCu nanoparticles are proved to be formed via underpotential deposition mechanism and the formation of ternary nanoparticles RuCuMo was due to the replacement of Cu with Ru and the interception of Mo gradually. It was found that the formation of different morphology is depended on the precursors in the reaction system and their reduction sequences. Compared to previously reported multi-step synthetic routes, the developed method here is much simpler.
机译：通过一锅化学还原法制备了Urchin状的RuCu纳米颗粒和中空的RuCuMo纳米颗粒。通过EDX，HRTEM，XPS和ICP-AES对纳米颗粒进行了表征。通过循环伏安法和透射电镜相结合，获得了纳米粒子的形成过程。事实证明，这种海胆状RuCu纳米粒子是通过欠电位沉积机制形成的，而三元纳米粒子RuCuMo的形成是由于用Ru置换了Cu并逐渐拦截了Mo。发现不同形态的形成取决于反应体系中的前体及其还原顺序。与以前报道的多步合成路线相比，此处开发的方法要简单得多。

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