▎ 摘　　要

NOVELTY - Preparing boron-doped graphene/palladium nano electrochemical sensor comprises (i) placing boron-doped graphene dispersion liquid in round bottomed flask, introducing nitrogen, adding potassium chloropalladate solution in boron-doped graphene dispersion liquid to mix with it to obtain mixed solution, placing mixed solution in ice open bath and stirring for carrying out reaction, centrifuging, washing and drying centrifuged solid to obtain boron-doped graphene/palladium nanomaterials (ii) ultrasonically dispersing solid prepared in step (i) in de-ionized water to obtain modified liquid, (iii) taking glassy carbon electrode, polishing glassy carbon electrode surface, cleaning and drying, and (iv) uniformly dripping prepared modified liquid on surface of glassy carbon electrode processed in step (iii), and quickly inverting beaker on glassy carbon electrode, and slowly volatilizing the solution on surface to dry at room temperature. USE - The method is useful for preparing boron-doped graphene/palladium nano electrochemical sensor, which is useful for detecting hydrogen peroxide (claimed). ADVANTAGE - The method: is simple and easy to operate. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a boron-doped graphene/palladium nano electrochemical sensor prepared by above mentioned method.