Single‐atom catalysts are one of the most energetic frontier research fields of catalysis, which exhibit distinctive performance for diverse chemical reactions due to the unique coordination environment, high atomic utilization, high activity and selectivity. Nevertheless, the size decrease of catalyst particles is accompanied with the sharply increased surface energy, thus ultra‐small particles are easy to form aggregation of nanoclusters and cannot maintain the atomic level dispersion. The key factor to protect catalytic sites is to regulate and control the interaction between single atoms and the substrate. As one of the most promising two‐dimensional supports to stabilize the isolated metal atoms, graphitic carbon nitride has been widely studied owing to the existence of abundant pyridine‐like nitrogen atoms for strongly anchoring metal centers and the distinct structure originating from electron rearrangement caused by the interaction between carbon and neighbor nitrogen atoms. In this review, we systematically generalize the controllable syntheses, theoretical calculations, characterizations and applications of graphitic carbon nitride supported isolated single‐atom catalysts, and finally, the prospects and challenges in this emergent field are featured on the basis of current experimental and computational efforts.

中文翻译：

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石墨化氮化碳负载单原子催化剂用于能量转化的最新进展

单原子催化剂是催化最前沿的研究领域之一，由于其独特的配位环境，高原子利用率，高活性和选择性，在各种化学反应中均表现出独特的性能。尽管如此，催化剂颗粒的尺寸减小伴随着表面能的急剧增加，因此，超小颗粒易于形成纳米团簇的聚集体，并且不能保持原子级分散。保护催化位点的关键因素是调节和控制单个原子与底物之间的相互作用。作为稳定隔离金属原子的最有希望的二维载体之一，由于存在大量的吡啶样氮原子用于牢固地锚固金属中心，并且由于碳与相邻氮原子之间的相互作用而引起的电子重排而形成的独特结构，因此对石墨氮化碳进行了广泛的研究。在这篇综述中，我们系统地概括了可控制的合成，理论计算，表征和应用的石墨碳氮化物负载的孤立单原子催化剂的应用，最后，根据当前的实验和计算成果，对该新兴领域的前景和挑战进行了介绍。 。