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Progress in controlling the size, composition and nanostructure of supported gold-palladium nanoparticles for catalytic applications

机译：控制催化应用的支持的金 - 利 - 纳米颗粒的大小，组成和纳米结构的进展

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摘要

This review article gives an overview of the recent developments in the synthesis strategies of supported gold-based bimetallic nanoparticle catalysts. The catalytic efficiency of these supported bimetallic nanoparticles, similar to monometallic nanoparticles, depends on their structural characteristics, but with added complexities because of the presence of the second metal. We discuss three major structural features of supported bimetallic nanoparticles, namely (a) size, (b) composition and (c) nanostructure, all of which play a crucial role in the resulting overall catalytic performances of the materials. Selected literature examples, where these three parameters have been extensively studied and controlled by changing the synthesis strategies, are analyzed and presented. A specific objective of this article is to motivate researchers to characterize these supported nanoparticles more thoroughly to investigate their structural features in detail and design based on this knowledge suitable and innovative synthesis strategies to control these properties. Because of the sheer number of examples in this field of research, this paper focuses only on gold-palladium bimetallic nanoparticles; however we are convinced that the broader scientific message could be extended to other bimetallic catalyst compositions.
机译：这篇评论文章概述了基于金的双金属纳米粒子催化剂的合成策略的最新发展。这些受支持的双金属纳米颗粒的催化效率与单金属纳米颗粒相似，取决于它们的结构特性，但由于第二金属的存在而具有增加的复杂性。我们讨论了支持双金属纳米颗粒的三个主要结构特征，即（a）大小，（b）组成和（c）纳米结构，所有这些纳米结构在材料的总体催化性能中起着至关重要的作用。分析和介绍了通过更改合成策略对这三个参数进行了广泛研究和控制的选定文献示例。本文的一个具体目的是激励研究人员更彻底地对这些支持的纳米颗粒进行表征，以根据这些知识进行详细研究和设计，以控制这些特性，以详细研究和设计。由于这一研究领域的示例数量很大，因此本文仅着重于金属金属金属纳米颗粒。但是，我们坚信，更广泛的科学信息可以扩展到其他双金属催化剂组成。

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