Precise control over the size, shape, composition, structure, and crystal phase of random alloy and intermetallic nanocrystals has been intensively explored in technologically important applications in recent years. Different from the monometallic nanocrystals and other types of structural nanocrystals such as core–shell and heterostructured nanocrystals, well-defined multimetallic random alloy and intermetallic nanocrystals exhibit unique and intriguing physicochemical properties, serving as ideal models for benefiting the structure-to-property studies. As such, random alloy and intermetallic nanocrystals have attracted extensive attention and interest in scientific research and shown huge potential in various fields. In this review, we focus specifically on summarizing the synthetic principles and strategies developed to form random alloy and intermetallic nanocrystals with enhanced performance. Some representative examples are purposely selected for emphasizing basic concepts and mechanistic understanding. We then highlight the fascinating properties and widespread applications of random alloy and intermetallic nanocrystals in electrocatalysis, heterogeneous catalysis, optical and photocatalysis, as well as magnetism and conclude the review by addressing the prospects and current challenges for the controlled synthesis of random alloy and intermetallic nanocrystals.

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贵金属基无规合金和金属间纳米晶体的合成与应用

近年来，在重要的技术应用中，人们对精确控制无规合金和金属间纳米晶体的尺寸，形状，组成，结构和晶相进行了深入研究。与单金属纳米晶体和其他类型的结构纳米晶体（如核-壳和异质结构纳米晶体）不同，定义明确的多金属无规合金和金属间纳米晶体表现出独特而有趣的理化性质，是有益于结构到性质研究的理想模型。因此，无规合金和金属间纳米晶体在科学研究中引起了广泛的关注和兴趣，并在各个领域显示出巨大的潜力。在这篇评论中 我们特别着重于总结为形成具有增强性能的无规合金和金属间纳米晶体而开发的合成原理和策略。特意选择一些代表性示例，以强调基本概念和机械理解。然后，我们重点介绍了无规合金和金属间纳米晶体在电催化，非均相催化，光学和光催化以及磁性方面的引人入胜的特性和广泛应用，并通过解决无规合金和金属间纳米晶体受控合成的前景和当前挑战，总结了本综述。 。