Method for preparing N-doped carbon shell protected ordered PtFe nanoparticle and ordered PtFe nanoparticle obtained thereof and uses thereof

摘要

The present invention relates to a method for producing aligned platinum alloy nanoparticles having a uniform size by a nitrogen-doped carbon coating layer, wherein the platinum alloy nanoparticles in more detail align with the platinum precursor and the iron precursor, Comprising the steps of: preparing nanoparticles; adsorbing platinum iron nanoparticles on the surface of the carbon support to produce carbon-supported platinum iron nanoparticles; coating the surfaces of the carbon-supported platinum iron nanoparticles with polypodamine and heat treating In the heat treatment step, the nitrogen-doped carbon coating layer formed by the carbonization of the polypodamine inhibits aggregation of the platinum nano-particles to form uniform particles, and the formation of the ordered lattice-structure platinum nano-particles . In addition, when the aligned platinum iron nanoparticles according to the present invention is applied as a reducing electrode catalyst of a fuel cell, there is an advantage that excellent performance and stability can be secured while reducing the amount of platinum loading.