Electrochemical deposition preparation method for composite material used for microelectrode modification
A composite material and micro-electrode technology, applied in the direction of electrochemical variables of materials, material analysis by electromagnetic means, material analysis, etc., can solve the problems of non-conductivity, increase the AC impedance of PEDOT-GO, etc., and achieve excellent mechanical stability. and electrical conductivity, good biocompatibility, low cost effect
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[0043] Example 1
[0044] Preparation of electrolyte:
[0045] Measure 10 ml of a 2 mg / ml GO aqueous solution (XFNANO) with a graduated cylinder, and then dilute it 20-fold with deionized water to obtain a 0.1 mg / ml GO aqueous solution. Measure 60ml of the diluted solution into a 100ml beaker with a graduated cylinder and ultrasonically disperse it for 30min to obtain the following: figure 1 Graphene oxide aqueous solution shown in a.
[0046] Weigh 0.01g (1mM / L) of ascorbic acid with a microbalance and add it to figure 1 The solution in a is then stirred until it is completely dissolved. Use a dropper to add an appropriate amount of ammonia water to the solution so that the pH of the solution is between 9-10. Adjust the temperature of the oil bath heating pot to 95°C and keep it constant for more than 10 minutes. Subsequently, the beaker was sealed with aluminum foil and then placed in an oil bath for heating, and the rotational speed of the magnetic stirrer was adjusted...
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[0053] Example 2
[0054] Preparation of electrolyte:
[0055] Measure 60ml of 2mg / ml GO aqueous solution into a 100ml beaker and ultrasonically disperse it for 30min to obtain the following: figure 1 Graphene oxide aqueous solution shown in a.
[0056] Weigh 0.2g (20mM / L) of ascorbic acid with a microbalance and add it to figure 1 The solution in a is then stirred until it is completely dissolved. Use a dropper to add an appropriate amount of ammonia water to the solution so that the pH of the solution is between 9-10. Adjust the temperature of the oil bath heating pot to 95°C and keep it constant for more than 10 minutes. Subsequently, the beaker was sealed with aluminum foil and then placed in an oil bath for heating, and the rotational speed of the magnetic stirrer was adjusted to 700 rpm and timing was started. After 20min of reaction, the beaker was taken out and cooled at room temperature to obtain the following figure 1 The rGO aqueous solution shown in b.
[00...
Example Embodiment
[0062] Example 3
[0063] Preparation of electrolyte:
[0064] Measure 60ml of 2mg / ml GO aqueous solution into a 100ml beaker and ultrasonically disperse it for 30min to obtain the following: figure 1 Graphene oxide aqueous solution shown in a.
[0065] Weigh 1.2g (20mg / ml) of ascorbic acid with a microbalance and add it to figure 1 The solution in a is then stirred until it is completely dissolved. Subsequently, the beaker was sealed with aluminum foil and stirred vigorously on a magnetic stirrer. After 24 hours of reaction at room temperature, the following figure 1 The rGO aqueous solution shown in b.
[0066] Towards figure 1 Add 0.3g PSS (5mg / ml) to the rGO solution shown in b and stir to dissolve to obtain figure 1 The mixed solution shown in c.
[0067] with a pipette to figure 1 Add 60 μL (0.01M / L) of EDOT monomer to the mixed solution shown in c, and then stir for more than 2 hours until it is completely dissolved, and prepare as follows: figure 1 The mixed ...
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