Monatomic metal catalyst, preparation method thereof and ordered membrane electrode

The invention belongs to the technical field of membrane electrode catalysts, and particularly relates to a monatomic metal catalyst, a preparation method thereof and an ordered membrane electrode. The monatomic metal catalyst comprises an oriented carbon nanotube array and metal monatomic atoms, wherein the metal monatomic atoms are loaded on the inner walls of carbon nanotubes in the oriented carbon nanotube array. In the invention, the carbon nanotubes in the oriented carbon nanotube array can enhance the catalytic activity of the monatomic catalyst, and the metal monatomic agglomeration can be avoided by loading the metal monatomic on the inner wall, thereby effectively prolonging the service life of the catalyst. The monatomic metal catalyst provided by the invention can greatly improve the utilization rate of metal and reduce the usage amount of metal, and when the metal monatomic atom is a noble metal monatomic atom, the production cost can be obviously reduced, so that the ordered membrane electrode c