In recent years, the research of monoatomic catalysis has developed rapidly. Recently, Chemical Engineering Journal (Chemical &; Engineering News, C & ampEN) published "Bringing Catalysis to Atomic Limit-Chemists Pushing Monoatomic Supported Catalysts from Unreachable Ideas to Reality" to make a special comment on it. This is C&; amp； The last five years. EN's fourth special review on monoatomic catalysis, the first three reviews are about single research work, and this one is a comprehensive review on the development of monoatomic catalysis in recent years. The concept of "single atom catalysis" was first put forward by the research group of Academician Zhang Tao of Dalian Institute of Chemistry five years ago. Chem.20 1 1, 3 (8), 634-64 1), and has been highlighted by C & ampEN (monoatomic-mediated reaction) and Nature China (catalysis: really not, quite good). This representative paper has been cited for nearly 400 times in five years. This paper discusses in detail the origin, development and prospect of the concept of monoatomic catalysis. As the commentary said: Five years ago, a single atom on the surface of a solid can catalyze, which is a strange idea for many scientists. A few research groups, represented by Zhang Tao Research Group, have explored this field and found that monoatomic catalysts can not only catalyze, but also have many advantages compared with traditional catalysts. On this basis, international studies have followed suit, and the study of monoatomic catalysis has developed rapidly. The rapid development of monoatomic catalysis makes Sir John Merrige Thomas of Cambridge University think that the application of monoatomic catalysis has a bright future. In the summer of 20 16, Professor Tsinghua University, Professor Li Juan and Liu Jiaoshou of Arizona State University co-chaired the first international symposium on monoatomic catalysis, which attracted more than 300 experts and scholars from nearly 10 countries, fully demonstrating the importance attached to monoatomic catalysis. At the end of the review article, the magical development process of monoatomic catalysis research is well demonstrated: "Just a few years ago, the idea that supported catalysts can work through the activity of a single atom sounded far-fetched and out of reach, but now researchers have begun to discuss the feasibility of mass production of monoatomic catalysts. How much has changed in a few years! " Chemical Engineering News of American Chemical Society (Chemical &; Engineering News, C & ampEN) was selected as the "Top Ten Scientific Research Achievements" in the field of chemistry and chemical engineering in 20 16. "Monoatomic catalysis" proposed by Academician Zhang Tao of Dalian Institute of Chemistry was selected for the first time in the world, which is also the research achievement of the only China scientist selected in this list this year. In 20 1 1 year, Zhang Tao team synthesized the monatomic platinum catalyst Pt 1/Feox (NAT. Chemistry. , 20 1 1, 3 (8), 634-64 1), and it was found for the first time that monoatomic catalysts showed excellent performance in CO oxidation reaction. In the following years, the team further expanded the types of monoatomic catalysts and catalytic reactions, including the use of monoatomic catalysts (J. AM) in water gas shift reactions. Chemistry. SOC。 , 2013,135 (41),15314-65438). Chemistry. Sci。 2016,7,5758-5764) and its application in olefin hydroformylation (Angew. chemistry. Edited by …, 2016,55,16054-16058). At the same time, the international research has followed suit, and the research of monoatomic catalysis has developed rapidly, and it has quickly become a research hotspot in the field of heterogeneous catalysis in just a few years. In the summer of 20 16, the research group co-sponsored the first international symposium on monoatomic catalysis with Tsinghua University and Arizona State University, which was also one of the pre-conference meetings of the 6th International Conference on Catalysis. It attracted more than 300 experts and scholars from nearly 10 countries, fully demonstrated the importance of monoatomic catalysis, and further promoted the development of the concept of monoatomic catalysis.