本文中电极中的制备时间为4小时，制备过程中所有物质每次电沉积的时间均为

The preparation time in the electrode in this article is 4 hours, and the time for each electrodeposition of all materials in the preparation process is 20 minutes. The choice of this experimental time is found through preliminary experimental research. It was carried out for 10 minutes, 15 minutes, and 20 minutes. In the electrodeposition experiment from 30 minutes to one hour, the study found that with the extension of the deposition time, the current corresponding to the modified electrode obtained is the best, and when the deposition time reaches 20 minutes, the cyclic voltammetry of the modified electrode A stable and typical characteristic redox peak of polyoxometalate has appeared in the figure. With the further extension of the deposition time, although a higher response current can be obtained, the stability of the electrode has a downward trend, so in the experiment The time for each electrodeposition of all materials is 20 minutes, and the total time for electrode preparation is 4 hours. All experiments in this article are performed at 25°C, and the temperature in the laboratory is controlled at 25°C.

In this paper, the preparation time in the electrode is 4 hours, the preparation process of all substances each electro deposition time is 20 minutes, the choice of this experimental time was found through pre-experimental research, when 10 minutes, 15 minutes, 20 minutes, 30 minutes to 1 hour of electro-deposition experiments, the study found that with the extension of the deposition time, the modified electrode of the current obtained correspondingly the best, and when the deposition time reached 20 minutes, The resulting retouched electrode cycle V.A. has appeared stable and typical polymetallic oxygenate characteristic redox peak, with the further extension of deposition time, although a higher response current can be obtained, but the stability of the electrode is declining trend, so the test selected all substances each electro deposition time is 20 minutes, the total time of electrode preparation is 4 hours. All the experiments in this paper were conducted at 25 degrees C, and the temperature in the laboratory was controlled at 25 degrees Celsius.

In this paper, the preparation time of the electrode is 4 hours, and the time of each electrodeposition of all substances in the preparation process is 20 minutes. The choice of the experimental time was found through the pre experimental study. At that time, the electrodeposition experiments of 10 minutes, 15 minutes, 20 minutes, 30 minutes and one hour were carried out. It was found that with the extension of the deposition time, the current of the modified electrode decreased When the deposition time reaches 20 minutes, the cyclic voltammograms of the modified electrode show stable and typical redox peaks of polyoxometalates. With the further extension of deposition time, although higher response current can be obtained, the stability of the electrode shows a downward trend, so all materials are selected for each electrodeposition The total time of electrode preparation is 4 hours. All the experiments in this paper are carried out at 25 ℃, and the temperature of the laboratory is controlled at 25 ℃.<br>