In heterogeneous single-metal-site catalysts (HSMSCs) the active metal centres are located individually on a support and are stabilized by neighbouring surface atoms such as nitrogen, oxygen or sulfur. Modern characterization techniques allow the identification of these individual metal atoms on a given support, and the resulting materials are often referred as single-atom catalysts. Their electronic properties and catalytic activity are tuned by the interaction between the central metal and the neighbouring surface atoms, and their atomically dispersed nature allows for metal utilization of up to 100%. In this way, HSMSCs provide new opportunities for catalysis, and with respect to structure build a bridge between homogeneous and heterogeneous catalysis. Herein, selected publications from 2010 in this area are reviewed and their perspectives for the near future are highlighted. Where appropriate, comparisons between HSMSCs and homogeneous/heterogeneous counterparts are presented.

在非均相单金属中心催化剂（HSMSC）中，活性金属中心分别位于载体上，并通过相邻的表面原子（例如氮，氧或硫）稳定。现代表征技术可以识别给定载体上的这些单个金属原子，并且所得的材料通常称为单原子催化剂。它们的电子性能和催化活性通过中心金属与相邻表面原子之间的相互作用进行调节，并且它们的原子分散性质允许金属利用率高达100％。这样，HSMSC提供了新的催化机会，并且就结构而言，在均相和异相催化之间架起了一座桥梁。在此处，回顾了2010年该领域的精选出版物，并重点介绍了它们在不久的将来的观点。适当时，提出了HSMSC与同质/异质对应物之间的比较。