As a typical metal nanomaterial, platinum nanometers have good selectivity, stability and electrical conductivity. At the same time, their anti-oxidation and electrocatalytic capabilities are also strong, and they play an important role in electrochemistry. Modification of the drill nanoparticles to the surface of the electrode can increase the surface area of the electrode and enhance the electrocatalytic oxidation activity. For commonly used methods for preparing platinum nanoparticle modified electrodes, such as electrochemical deposition method, ultrasonic electrodeposition method, Step Functions electrodeposition, platinum-lead electrochemical co-deposition method, chemical in-situ one-step reduction method and potentiostatic method, etc. Discussions were conducted to compare the advantages and disadvantages of these methods for preparing modified electrodes, and summarize the application of nanoparticle modified electrodes in biological detection, chemical detection and life.
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