▎ 摘　　要

NOVELTY - Preparing nitrogen-doped graphene supported palladium catalyst comprises e.g. adding nitrogen-doped graphene into distilled water and dispersing, adding palladium(II) chloride solution, carrying out ultrasonic treatment, adding potassium borohydride, heating mixed solution at 50-60 degrees C, reacting mixed solution, then adding potassium borohydride at 50-60 degrees C for 6-8 hours, filtering, washing and drying to obtain final product. USE - The method is useful for preparing nitrogen-doped graphene supported palladium catalyst (claimed). DETAILED DESCRIPTION - Preparing nitrogen-doped graphene supported palladium catalyst comprises (i) adding nitrogen-doped graphene into distilled water to sonicate and dispersing uniformly to obtain nitrogen-doped graphene solution, (ii) dissolving palladium(II) chloride solution in distilled water to make palladium(II) chloride solution, concentration of palladium(II) chloride solution is 0.05 mol/l, and pH value of palladium(II) chloride solution is adjusting to 7-8 after ultrasonic treatment, (iii) adding potassium borohydride in distilled water to dissolve to obtain potassium borohydride solution, (iv) mixing nitrogen-doped graphene solution prepared in step (i) with palladium(II) chloride solution prepared in step (ii) and heating mixed solution at 50-60 degrees C, (v) adding potassium borohydride solution obtained in step (iii) into mixed solution obtained in step (iv) slowly, (vi) reacting mixed solution, then adding potassium borohydride at 50-60 degrees C for 6-8 hours, (vii) filtering product reacted in step (vii), washing and drying to obtain final product.