| abstract |
A preparation method for and the use of a self-assembly-based nitrogen-doped ordered porous precious metal nanomaterial. According to the method, an amphiphilic block copolymer containing pyridine nitrogen is taken as a structure-directing agent, phenolic resin is taken as a template, and a precious metal precursor is added, and self-assembling and carbonization are induced by means of volatilization of a solvent to prepare the nitrogen-doped ordered porous precious metal nanomaterial. The orderliness, dispersity and uniformity of the precious metal nanomaterial are realized, the problems of easy migration and inactivation after agglomeration of precious metal nanoparticles are solved, the lifespan of precious metal particles is prolonged; in addition, the ORR electro-catalytic property of the material can be improved, and the nitrogen-doped ordered porous precious metal nanomaterial can be used to prepare a cathode oxygen reduction catalyst of a fuel cell. |