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首页> 外文期刊>RSC Advances >Ionic liquid-mediated synthesis of unique PtPd bimetallic particles with tiny subunits for efficient electrocatalytic and catalytic applications
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Ionic liquid-mediated synthesis of unique PtPd bimetallic particles with tiny subunits for efficient electrocatalytic and catalytic applications

机译：离子液体介导的具有微小亚基的独特PtPd双金属颗粒的合成，用于有效的电催化和催化应用

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摘要

Ionic liquids provide chemists with a versatile platform and many opportunities for constructing various interesting inorganic materials. Here, an ionic liquid-mediated synthesis route is proposed for the controlled synthesis of PtPd bimetallic particles. The synthesized PtPd particles have unique three dimensional nanostructures (3D) constructed by nanoparticle subunits. For the 3D nanostructures, the primary PtPd particles form aggregates with the characteristic of interparticle porosity. Among others, the Pt1Pd1 bimetallic particles exhibit superior electrocatalytic activity toward oxidation of methanol in an alkaline medium than the commercial state-of-the-art Johnson-Matthey platinum black catalyst (Hispec (TM) 1000). Furthermore, the catalytic activity towards p-nitrophenol reduction indicates that the synthesized Pt1Pd3 particles exhibit the highest catalytic activity in comparison with the studied various PtPd bimetallic particles, the monometallic Pt and the monometallic Pd particles. This study may pave the way for the efficient synthesis of three dimensional bimetallic nanostructures for improved catalytic applications.
机译：离子液体为化学家提供了一个多功能的平台，并为构建各种有趣的无机材料提供了许多机会。在此，提出了一种离子液体介导的合成路线，用于PtPd双金属颗粒的受控合成。合成的PtPd颗粒具有由纳米颗粒亚基构成的独特的三维纳米结构（3D）。对于3D纳米结构，初级PtPd颗粒形成具有颗粒间孔隙率特征的聚集体。其中，Pt1Pd1双金属颗粒对碱性介质中甲醇氧化的电催化活性优于商业上最先进的Johnson-Matthey铂黑催化剂（Hispec TM 1000）。此外，对对硝基苯酚还原的催化活性表明，与研究的各种PtPd双金属颗粒，单金属Pt和单金属Pd颗粒相比，合成的Pt1Pd3颗粒表现出最高的催化活性。这项研究可能为有效地合成三维双金属纳米结构以改善催化应用铺平了道路。

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