▎ 摘　　要

NOVELTY - The method involves manufacturing a graphene/carbon nano-tube composite modified electrode. Electrolyte solution is obtained. The electrolyte solution is added in an electrolytic cell. A three-electrode system is established. A pair electrode is formed as a platinum electrode. A reference electrode is formed as a saturated calomel electrode. Impedance of solution in the electrolytic cell is determined using alternate current impedance process. Grease oxidation induction time is measured through double-tangent process. A carbon nano tube is formed as a multi-wall carbon nano-tube. USE - Graphene/carbon nano-tube composite modified electrode grease oxidation induction time measuring method. ADVANTAGE - The method enables quickly and accurately measuring impedance value change in grease oxidation process so as to realize electrochemical analysis process with simple operation, and measuring grease oxidative induction time in a sensitive and accurate manner.