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首页> 外文期刊>Ultrasonics sonochemistry >A facile sonochemical route for the synthesis of MoS2/Pd composites for highly efficient oxygen reduction reaction
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A facile sonochemical route for the synthesis of MoS2/Pd composites for highly efficient oxygen reduction reaction

机译：用于合成MOS2 / Pd复合材料的容易的儿童化学途径，用于高效氧还原反应

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For the alkaline fuel cell cathode reaction, it is very essential to develop novel catalysts with superior catalytic properties. Here, we report the synthesis of highly active and stable MoS2/Pd composites for the oxygen reduction reaction (ORR), via a simple, eco-friendly sonochemical method. The bulk MoS2 was first transformed into single and few layers MoS2 nanosheets through ultrasonic exfoliation. Then the exfoliated MoS2 nanosheets served as supporting materials for the nucleation and further in-situ growth of Pd nanoparticles to form MoS2/Pd composites via ultrasonic irradiation. Cyclic voltammetry and rotating disk voltammetry measurements demonstrate that as-prepared MoS2/Pd composites which provides a direct four-electron pathway for the ORR, have better electrocatalytic activity, long-term operation stability than commercial Pt/C catalyst. We expect that the present work would provide a promising strategy for the development of efficient oxygen reduction electrocatalyst. In addition, this study can also be extended to the preparation of other hybrid with desirable morphologies and functions. (C) 2016 Published by Elsevier B.V.
机译：对于碱性燃料电池阴极反应，开发具有优异催化性质的新型催化剂是至关重要的。在这里，我们通过简单，生态友好的儿童化学方法报告用于氧还原反应（ORR）的高活性和稳定MOS2 / Pd复合材料的合成。首先通过超声剥离将散装MOS2转换成单个和少数层MOS2纳米片。然后将剥离的MOS2纳米片作为支撑材料用于核切割，进一步原位生长Pd纳米颗粒以通过超声辐射形成MOS2 / Pd复合材料。循环伏安法和旋转盘伏安法测量表明，用于为ORR提供直接四电子通路的原制的MOS2 / Pd复合材料具有更好的电催化活性，而不是商业Pt / C催化剂的长期操作稳定性。我们预计本工作将为高效氧还原电催化剂的发展提供有希望的策略。此外，该研究也可以扩展到具有所需形态和功能的其他杂种的制备。 （c）2016年由Elsevier B.V发布。

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