The invention provides a
platinum-based monatomic electrocatalytic material as well as a preparation method and application thereof, belonging to the field of electrocatalysis. The
platinum-based monatomic electrocatalytic material is prepared by taking an Anderson type heteropolyacid compound,
dopamine or a salt thereof as raw materials, wherein the Anderson type heteropolyacid compound is Anderson type heteropolyacid or a
hydrate thereof, and a salt of the Anderson type heteropolyacid or a
hydrate thereof; and the structure of the Anderson type heteropolyacid is H8PtR6O24, and R is a
transition metal. The electrocatalytic
hydrogen evolution performance of the
platinum-based monatomic
electrocatalyst in an acid solution is equivalent to the electrocatalytic
hydrogen evolution performance of commercial platinum carbon, and the electrocatalytic
hydrogen evolution performance of the platinum-based monatomic
electrocatalyst in an alkaline solution is remarkably higher than the electrocatalytic
hydrogen evolution performance of the commercial platinum carbon. Meanwhile, the long-term durability of the platinum-based monatomic
electrocatalyst in the acid solution and the alkaline solution is remarkably superior to the long-term durability of commercial platinum carbon, and the
mass activity and the catalytic conversion frequency of the platinum-based monatomic electrocatalyst are also remarkably superior to the
mass activity and the catalytic conversion frequency of the commercial platinum carbon. The platinum-based monatomic electrocatalyst prepared in the invention has
high activity and long-term stable electrocatalytic performance in a wide
pH range, and has wide application prospects.