Method for preparing Pt-N-C catalyst by using nitrogen doping strategy and application of Pt-N-C catalyst

The invention belongs to the technical field of electrochemical catalyst materials, and particularly relates to a method for preparing a Pt-N-C catalyst by using a nitrogen doping strategy and application of the Pt-N-C catalyst. The preparation method comprises the following steps: complexing a precursor in an EB-PANI chain in a coordination form by utilizing preparation of emerald alkali form polyaniline (EB-PANI), and then carrying out high-temperature carbonization reaction on the complex to obtain the fibrous Pt-N-C catalyst. The binding force between Pt and the substrate is enhanced through a nitrogen-doped carbon strategy, meanwhile, N is doped into Pt nano crystal lattices, and the prepared Pt-N-C catalyst has the advantages that the oxygen reduction reaction catalytic activity and stability are remarkably improved, and meanwhile, the certain practical value is achieved for improving the performance of a direct methanol fuel cell. 本发明属于电化学催化剂材料技术领域，具体涉及一种利用氮掺杂策略制备Pt-N-C催化剂的方法及应用。其利用翡翠碱形式聚苯胺（EB-PANI）的制备