A method for optimizing the preparation process of oxygen reference electrode material

Abstract

The present application relates to the technical field of preparation of oxygen reference electrode materials, and in particular to a method for optimizing the preparation process of oxygen reference electrode materials. It includes: obtaining the mass m1 of polyvinyl alcohol to be added, the mass m2 of chromium trioxide, the mass m3 of ferric oxide, and the mass m4 of chromium powder; inputting m1 into a first preset model to obtain the stirring speed v1 and the stirring duration t1 of the mixed solution after the chelating dispersant is added; inputting m1, m2, and m3 into a second preset model to obtain the speed e1 of adding chromium trioxide and ferric oxide to the modified solution and the stirring speed v2 of the modified solution after adding chromium trioxide and ferric oxide; inputting m1, m2, m3, and m4 into a third preset model to obtain the speed of adding chromium powder to the dispersed solution and the stirring speed of the dispersed solution after adding chromium powder; preparing oxygen reference electrode materials according to the dispersed solution. The present invention can improve the performance of the prepared oxygen reference electrode material.

Description

Technical Field

[0001] The invention relates to the technical field of preparation of oxygen reference electrode materials, and in particular to a method for optimizing the preparation process of oxygen reference electrode materials. Background Art

[0002] The prior art discloses a method for preparing an oxygen reference electrode material. For example, a Chinese patent application with publication number CN113504282A discloses a method for preparing an oxygen reference electrode material and an oxygen determination probe. The method for preparing an oxygen reference electrode material disclosed in the patent application comprises: adding polyvinyl alcohol to deionized water to prepare a mixed solution of a target concentration; adding a chelating dispersant to the mixed solution, and heating it to a first preset temperature to obtain a modified solution; adding metal oxide powder to the modified solution, mixing it, and obtaining a dispersed solution; adding chromium powder to the dispersed solution, dispersing it, and obtaining a dispersed solution; and preparing an oxygen reference electrode from the granulated powder obtained by drying the dispersed solution.

[0003] Although the above patent application discloses the mass range of polyvinyl alcohol, chromium oxide, iron oxide and chromium powder for preparing oxygen reference electrode materials, the performance of the oxygen reference electrode will also be affected by the addition speed, stirring speed and stirring time. If the addition speed, stirring speed and stirring time cannot match the mass of the above substances, the prepared oxygen reference electrode material will not be able to meet the measurement requirements. How to improve the performance of the prepared oxygen reference electrode material is an urgent problem to be solved. Summary of the invention

[0004] The object of the present invention is to provide a method for optimizing the preparation process of an oxygen reference electrode material, so as to optimize the preparation process of the oxygen reference electrode material and improve the performance of the prepared oxygen reference electrode material.

[0005] According to the present invention, a method for optimizing the preparation process of an oxygen reference electrode material is provided, the method comprising the following steps:

[0006] S100, obtaining the mass m1 of polyvinyl alcohol, the mass m2 of chromium trioxide, the mass m3 of iron trioxide and the mass m4 of chromium powder.

[0007] S200, inputting m1 into a first preset model to obtain a stirring speed v1 and a stirring time t1 of the mixed solution after the chelating dispersant is added; the mixed solution is obtained by adding polyvinyl alcohol to deionized water.

[0008] S300, input m1, m2 and m3 into the second preset model to obtain the speed e1 of adding chromium trioxide and iron trioxide to the modified solution and the speed v2 of stirring the modified solution after adding chromium trioxide and iron trioxide; the modified solution is obtained by stirring the mixed solution after adding the chelating dispersant with v1 as the stirring speed and t1 as the stirring time.

[0009] S400, input m1, m2, m3 and m4 into a third preset model to obtain a speed e2 for adding chromium powder to the dispersed solution and a speed v3 for stirring the dispersed solution after the chromium powder is added; the dispersed solution is obtained by stirring the modified solution after adding chromium trioxide and ferric oxide with e1 as the speed for adding chromium trioxide and ferric oxide and with v2 as the stirring speed.

[0010] S500, preparing an oxygen reference electrode material according to a dispersion; the dispersion is obtained by stirring the dispersion after adding the chromium powder at a speed of e2 as the chromium powder adding to the dispersion and at a stirring speed of v3 as the stirring speed.

[0011] Compared with the prior art, the present invention has at least the following beneficial effects:

[0012] The present invention determines the stirring speed, stirring time and adding speed in the preparation process of the oxygen reference electrode material according to the mass of the polyvinyl alcohol to be added, the mass of the chromium trioxide, the mass of the ferric oxide and the mass of the chromium powder, so that the stirring speed, stirring time and adding speed can match the mass of the polyvinyl alcohol, the mass of the chromium trioxide, the mass of the ferric oxide and the mass of the chromium powder, so that the substances can be evenly distributed and can be fully mixed and interacted with each other, and the problems of instability and destruction of the substances themselves caused by excessive stirring or too fast stirring speed can be avoided, thereby achieving the purpose of optimizing the preparation process of the oxygen reference electrode material and improving the performance of the prepared oxygen reference electrode material. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 A flow chart of a method for optimizing the preparation process of an oxygen reference electrode material provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0016] According to this embodiment, Figure 1 As shown, a method for optimizing the preparation process of an oxygen reference electrode material is provided, the method comprising the following steps:

[0017] S100, obtaining the mass m1 of the polyvinyl alcohol to be added, the mass m2 of the chromium oxide, the mass m3 of the ferric oxide, and the mass m4 of the chromium powder.

[0018] In this embodiment, the value range of m1 is 0.2 to 1 gram, the value range of m2 is 1 to 10 grams, the value range of m3 is 0.1 to 2 grams, and the value range of m4 is 80 to 99 grams; wherein the polyvinyl alcohol is ultra-low molecular weight polyvinyl alcohol, the particle size range of chromium trioxide and iron trioxide satisfies [30nm, 100nm], and the particle size range of chromium powder satisfies [10μm, 100μm].

[0019] It should be understood that the mass m1 of polyvinyl alcohol to be added, the mass m2 of chromium oxide, the mass m3 of iron oxide and the mass m4 of chromium powder correspond to the preparation of 2 L of mixed solution.

[0020] S200, inputting m1 into a first preset model to obtain a stirring speed v1 and a stirring time t1 of the mixed solution after the chelating dispersant is added; the mixed solution is obtained by adding polyvinyl alcohol to deionized water.

[0021] As a specific implementation, the concentration of the mixed solution is 0.1%, the volume of the mixed solution is 2L, the volume of the chelating dispersant added is 2ml, and after adding the chelating dispersant, the mixed solution is heated to 40-60°C, stirred at v1 as the stirring speed and t1 as the stirring time to form a modified solution.

[0022] In this embodiment, the first preset model is a pre-constructed model, and the first preset model has the function of obtaining the stirring speed of the mixed solution after adding the chelating dispersant and the stirring time of the mixed solution after adding the chelating dispersant according to the mass of the polyvinyl alcohol to be added, and the stirring speed and stirring time of the mixed solution after adding the chelating dispersant can make the polyvinyl alcohol, deionized water and the chelating dispersant fully mixed, and will not introduce too much air, and will not cause mechanical damage to the polyvinyl alcohol molecular chain. As a specific embodiment, the first preset model includes 2 sub-models, which are a sub-model for obtaining the stirring speed of the mixed solution after adding the chelating dispersant and a sub-model for obtaining the stirring time of the mixed solution after adding the chelating dispersant. The number of independent variables of any of the above two sub-models is 1, and the number of dependent variables is also 1. The relationship between the independent variable and the dependent variable is relatively clear and simple. Optionally, any of the above two sub-models is determined based on experience or curve fitting.

[0023] S300, input m1, m2 and m3 into the second preset model to obtain the speed e1 of adding chromium trioxide and iron trioxide to the modified solution and the speed v2 of stirring the modified solution after adding chromium trioxide and iron trioxide; the modified solution is obtained by stirring the mixed solution after adding the chelating dispersant with v1 as the stirring speed and t1 as the stirring time.

[0024] In this embodiment, the time for stirring the modified solution after adding chromium trioxide and iron trioxide is fixed, specifically 1 hour.

[0025] In this embodiment, the second preset model is a pre-constructed model, which has the function of obtaining the speed of adding chromium trioxide and ferric oxide to the modified solution and the speed of stirring the modified solution after adding chromium trioxide and ferric oxide according to the mass of polyvinyl alcohol to be added, the mass of chromium trioxide and the mass of ferric oxide, and the obtained addition speed and stirring speed can make the chromium trioxide and ferric oxide evenly dispersed, avoiding the formation of a loose or unevenly dense structure of the final oxygen reference electrode material.

[0026] As a specific embodiment, the second preset model includes a first sub-model for obtaining the speed of adding chromium trioxide and ferric oxide to the modified solution and a second sub-model for obtaining the speed of stirring the modified solution after adding chromium trioxide and ferric oxide. Preferably, the acquisition process of the first sub-model includes:

[0027] S310, obtaining a dispersed solution sample data set A; A={A1, A2, …, A i ,…,A n}, A iis the i-th dispersed solution sample data, i ranges from 1 to n, and n is the number of dispersed solution samples; A i =(a i,1 ,a i,2 ,a i,3 ,a i,4 ), a i,1 is the mass of polyvinyl alcohol corresponding to the i-th dispersed solution sample, a i,2 is the mass of chromium trioxide corresponding to the i-th dispersed solution sample, a i,3 is the mass of ferric oxide corresponding to the i-th dispersed solution sample, a i,4 is the optimal speed of adding chromium trioxide and iron trioxide to the modified solution corresponding to the i-th dispersed solution sample.

[0028] In this embodiment, a i,4 with a i,1 、a i,2 and a i,3 There is a corresponding relationship, that is, when a i,1 、a i,2 and a i,3 After confirming, a i,4 It is also unique. Optional, a i,4 Determined based on experience.

[0029] S320, group A to obtain a grouping result B; B={B1, ​​B2, …, B j ,…,B m}, B j is the jth group obtained by grouping A, the value range of j is 1 to m, m is the number of groups obtained by grouping A, and each B j Includes data for several dispersed solution samples.

[0030] As a specific implementation, m is a preset value, and A is randomly divided into m groups.

[0031] S330, traverse B, for B j The sample data of the dispersed solution included in the curve fitting is obtained. j The corresponding relationship between the mass of polyvinyl alcohol, the mass of chromium trioxide, the mass of ferric oxide and the optimal speed of adding chromium trioxide and ferric oxide to the modified solution is L j And the mean square error e j .

[0032] It should be understood that the relationship L j There are three independent variables and one dependent variable. The three independent variables are the mass of polyvinyl alcohol, the mass of chromium trioxide and the mass of ferric oxide. The one dependent variable is the optimal speed of adding chromium trioxide and ferric oxide into the modified solution.

[0033] Those skilled in the art know that any method in the prior art for performing curve fitting on data to obtain a relationship and a mean square error falls within the protection scope of the present invention.

[0034] S340, if {e1,e2,…,e j ,…,e m} any mean square error is less than or equal to the preset error threshold and {L1,L2,…,L j ,…,L m If the similarity between any two relations in {L1,L2,…,L j ,…,L m The average relation of all relations in} is determined as the first sub-model.

[0035] Based on S310-S340, it is possible to quickly obtain the relationship between the mass of polyvinyl alcohol, the mass of chromium trioxide, the mass of ferric oxide and the optimal speed for adding chromium trioxide and ferric oxide to the modified solution when there is a simple relationship between them and there is no noise. Under the premise of ensuring the accuracy of the model, the use of a neural network model is avoided, thereby improving the efficiency of obtaining the first sub-model.

[0036] In this embodiment, the preset error threshold and the preset similarity threshold are empirical values. If {e1, e2, …, e j ,…,e m} is less than or equal to a preset error threshold, indicating that the relationship corresponding to the mean square error can more accurately characterize the relationship between the mass of polyvinyl alcohol, the mass of chromium trioxide, the mass of ferric oxide and the optimal speed of adding chromium trioxide and ferric oxide to the modified solution in the corresponding group; as a preferred embodiment, {L1, L2, …, L j ,…,L m The process of obtaining the similarity between any two relational expressions in} includes:

[0037] S341, obtaining a target data point set; the target data point set includes a plurality of target data points, any target data point is composed of a mass value of polyvinyl alcohol, a mass value of chromium trioxide, and a mass value of ferric oxide; there are no identical target data points in the target data point set.

[0038] In this embodiment, the mass value of polyvinyl alcohol included in any target data point belongs to [0.2, 1], in grams, the mass value of chromium trioxide included in any target data point belongs to [1, 10], in grams, and the mass value of ferric oxide included in any target data point belongs to [0.1, 2], in grams.

[0039] S342, each target data point in the target data point set is substituted into the first specified relational expression and the second specified relational expression, and a difference value corresponding to each target data point obtained according to the first relational expression and the second relational expression is obtained; the first specified relational expression is {L1, L2, …, L j ,…,L m}, the second specified relation is {L1,L2,…,L j ,…,L m} is any relational expression that is not the first specified relational expression.

[0040] It should be understood that by substituting the mass value of polyvinyl alcohol, the mass value of chromium trioxide and the mass value of ferric oxide included in any target data point into the first specified relationship, a speed of adding chromium trioxide and ferric oxide to the modified solution can be obtained; by substituting the mass value of polyvinyl alcohol, the mass value of chromium trioxide and the mass value of ferric oxide included in any target data point into the second specified relationship, a speed of adding chromium trioxide and ferric oxide to the modified solution can also be obtained; the speed obtained by substituting the speed obtained by substituting the same target data point into the first specified relationship and the speed obtained by substituting the speed into the second specified relationship, and the absolute value is obtained, and the difference value corresponding to the same target data point is obtained.

[0041] S343: If the difference value corresponding to a target data point is less than or equal to a preset difference value threshold, the target data point is determined to be a consistent data point.

[0042] In this embodiment, the preset difference value threshold is an empirical value. If the difference value corresponding to a target data point is less than or equal to the preset difference value threshold, it means that the difference value corresponding to the target data point is small, and the first specified relationship expression and the second specified relationship expression have small differences in the positions of the target data point; if the difference value corresponding to a target data point is greater than the preset difference value threshold, it means that the difference value corresponding to the target data point is large, and the first specified relationship expression and the second specified relationship expression have large differences in the positions of the target data point.

[0043] S344, determining the ratio of the number of consistent data points in the target data point set as the similarity between the first specified relationship expression and the second specified relationship expression.

[0044] Based on S341-S344, {L1,L2,…,L j ,…,L m The similarity between any two relations in}.

[0045] As a preferred embodiment, {L1, L2, ..., L j ,…,L m The process of obtaining the average relational expression of all relational expressions in} includes:

[0046] S345, according to {L1,L2,…,L j ,…,L m} Each relationship in the formula obtains the optimal speed of adding chromium trioxide and iron trioxide to the modified solution corresponding to each specified data point; any specified data point belongs to a specified data point set, and any specified data point is composed of a mass value of polyvinyl alcohol, a mass value of chromium trioxide, and a mass value of iron trioxide.

[0047] In this embodiment, the mass value of polyvinyl alcohol included in any specified data point belongs to [0.2, 1], in grams, the mass value of chromium trioxide included in any target data point belongs to [1, 10], in grams, and the mass value of ferric oxide included in any target data point belongs to [0.1, 2], in grams. Optionally, the specified data point set is equal to the target data point set, or the specified data point set is not equal to the target data point set.

[0048] S346, obtaining the average optimal speed corresponding to each designated data point; the average optimal speed corresponding to any designated data point is the average value of the optimal speeds for adding chromium trioxide and iron trioxide to the modified solution corresponding to the designated data point.

[0049] It should be understood that the mass value of polyvinyl alcohol, the mass value of chromium trioxide and the mass value of iron trioxide included in any given data point are substituted into {L1, L2, ..., L j ,…,L m Any of the relationship equations in} can obtain an optimal speed for adding chromium trioxide and iron trioxide to the modified solution; the average of the m optimal speeds corresponding to any specified data point is the average optimal speed corresponding to the specified data point.

[0050] S347, performing curve fitting according to the average optimal speed corresponding to each designated data point, and determining the obtained relationship as {L1, L2, ..., L j ,…,L m The average relation of all relations in}.

[0051] Those skilled in the art know that any curve fitting method in the prior art falls within the protection scope of the present invention.

[0052] Based on S345-S347, {L1,L2,…,L j ,…,L m The average relation of all relations in}.

[0053] As a specific implementation, S340 further includes: if {e1, e2, ..., e j,…,e m} has a mean square error greater than a preset error threshold, then enter S350.

[0054] S350, using the dispersed solution sample data included in A to train the target neural network model.

[0055] In this embodiment, when training the target neural network model, (a i,1 ,a i,2 ,a i,3 ) is the i-th training sample, a i,4 is the label corresponding to the i-th training sample; as a specific implementation, the target neural network model is a multi-layer perceptron (MLP) neural network model, the number of neurons in its input layer is 3, and the number of neurons in its output layer is 1. Those skilled in the art know that any neural network training method in the prior art falls within the protection scope of the present invention.

[0056] S360, determining the trained target neural network model as the first sub-model.

[0057] In this embodiment, the trained target neural network model has the function of obtaining the stirring speed of the modified solution after adding chromium trioxide and iron trioxide.

[0058] As a specific implementation, S340 further includes: if {e1, e2, ..., e j ,…,e m} any mean square error is less than or equal to the preset error threshold and {L1,L2,…,L j ,…,L m} if there is a relational expression whose similarity with other relational expressions is less than a preset similarity threshold, execute S350-S360.

[0059] Based on the fact that S350-S360 can accurately obtain the relationship between the mass of polyvinyl alcohol, the mass of chromium trioxide, the mass of ferric oxide and the optimal speed of adding chromium trioxide and ferric oxide to the modified solution when there is a complex relationship or noise between them, the accuracy of the first sub-model is improved.

[0060] In this embodiment, the process of obtaining the second sub-model is similar to the process of obtaining the first sub-model described above, and will not be repeated here.

[0061] S400, input m1, m2, m3 and m4 into a third preset model to obtain a speed e2 for adding chromium powder to the dispersed solution and a speed v3 for stirring the dispersed solution after the chromium powder is added; the dispersed solution is obtained by stirring the modified solution after adding chromium trioxide and ferric oxide with e1 as the speed for adding chromium trioxide and ferric oxide and with v2 as the stirring speed.

[0062] In this embodiment, the third preset model is a pre-constructed model, and the third preset model has the function of obtaining the speed of adding chromium powder to the dispersed solution and the speed of stirring the dispersed solution after adding the chromium powder according to the mass of polyvinyl alcohol to be added, the mass of chromium trioxide, the mass of ferric oxide and the mass of chromium powder, and the obtained addition speed and stirring speed enable the chromium powder to be fully combined with chromium trioxide and ferric oxide.

[0063] As a specific embodiment, the third preset model includes a sub-model for obtaining the speed of adding chromium powder to the dispersed solution and a sub-model for obtaining the speed of stirring the dispersed solution after adding chromium powder. Preferably, any of the above two sub-models is obtained according to a method similar to the first sub-model for obtaining the speed of adding chromium trioxide and ferric oxide to the modified solution.

[0064] In this embodiment, the time for stirring the dispersed solution after adding the chromium powder is a fixed value, specifically 2 hours.

[0065] S500, preparing an oxygen reference electrode material according to a dispersion; the dispersion is obtained by stirring the dispersion after adding the chromium powder at a speed of e2 as the chromium powder adding to the dispersion and at a stirring speed of v3 as the stirring speed.

[0066] As a specific embodiment, preparing an oxygen reference electrode material based on a dispersion includes: passing the dispersion through a customized spray drying device to obtain a granulated powder; placing the granulated powder in a tubular atmosphere furnace, introducing high-purity oxygen, heating to 600°C and fully calcining for 4 hours, and then cooling the furnace and taking it out to become an oxygen reference electrode material.

[0067] In this embodiment, the stirring speed, stirring time and adding speed in the preparation process of the oxygen reference electrode material are determined according to the mass of the polyvinyl alcohol to be added, the mass of the chromium trioxide, the mass of the ferric oxide and the mass of the chromium powder, so that the stirring speed, stirring time and adding speed can match the mass of the polyvinyl alcohol, the mass of the chromium trioxide, the mass of the ferric oxide and the mass of the chromium powder, so that the substances can be evenly distributed and can be fully mixed and interact with each other, and problems such as instability and destruction of the substance itself caused by excessive stirring or too fast stirring speed can be avoided, thereby achieving the purpose of optimizing the preparation process of the oxygen reference electrode material and improving the performance of the prepared oxygen reference electrode material.

[0068] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will also be appreciated by those skilled in the art that various modifications may be made to the embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A method for optimizing the preparation process of an oxygen reference electrode material, characterized in that: The method comprises the following steps: S100, obtaining the mass m1 of the polyvinyl alcohol to be added, the mass m2 of the chromium oxide, the mass m3 of the ferric oxide, and the mass m4 of the chromium powder; S200, inputting m1 into a first preset model to obtain a stirring speed v1 of the mixed solution after the chelating dispersant is added and a stirring time t1 of the mixed solution after the chelating dispersant is added; the mixed solution is obtained by adding polyvinyl alcohol to deionized water; S300, inputting m1, m2 and m3 into a second preset model, obtaining a speed e1 of adding chromium trioxide and ferric oxide to the modified solution and a speed v2 of stirring the modified solution after adding chromium trioxide and ferric oxide; the modified solution is obtained by stirring the mixed solution after adding the chelating dispersant at v1 as the stirring speed and t1 as the stirring time; S400, inputting m1, m2, m3 and m4 into a third preset model, obtaining a speed e2 of adding chromium powder to the dispersed solution and a speed v3 of stirring the dispersed solution after the chromium powder is added; the dispersed solution is obtained by stirring the modified solution after the chromium oxide and ferric oxide are added with e1 as the speed and v2 as the stirring speed; S500, preparing an oxygen reference electrode material according to a dispersion; the dispersion is obtained by stirring the dispersion after adding the chromium powder at a speed of e2 as the chromium powder adding to the dispersion and at a stirring speed of v3 as the stirring speed.

2. The method for optimizing the preparation process of the oxygen reference electrode material according to claim 1, characterized in that: The second preset model includes a first sub-model for obtaining a speed of adding chromium trioxide and ferric oxide to the modified solution and a second sub-model for obtaining a speed of stirring the modified solution after adding chromium trioxide and ferric oxide. The acquisition process of the first sub-model includes: S310, obtaining a dispersed solution sample data set A; A={A1, A2, …, A i ,…,A n }, A i is the i-th dispersed solution sample data, i ranges from 1 to n, and n is the number of dispersed solution samples; A i =(a i,1 ,a i,2 ,a i,3 ,a i,4 ), a i,1 is the mass of polyvinyl alcohol corresponding to the i-th dispersed solution sample, a i,2 is the mass of chromium trioxide corresponding to the i-th dispersed solution sample, a i,3 is the mass of ferric oxide corresponding to the i-th dispersed solution sample, a i,4 is the optimal speed of adding chromium trioxide and iron trioxide to the modified solution corresponding to the i-th dispersed solution sample; S320, group A to obtain a grouping result B; B={B1, ​​B2, …, B j ,…,B m }, B j is the jth group obtained by grouping A, the value range of j is 1 to m, m is the number of groups obtained by grouping A, and each B j Includes data on several dispersed solution samples; S330, traverse B, for B j The sample data of the dispersed solution included in the curve fitting is obtained. j The corresponding relationship between the mass of polyvinyl alcohol, the mass of chromium trioxide, the mass of ferric oxide and the optimal speed of adding chromium trioxide and ferric oxide to the modified solution is L j And the mean square error e j ; S340, if {e1,e2,…,e j ,…,e m } any mean square error is less than or equal to the preset error threshold and {L1,L2,…,L j ,…,L m If the similarity between any two relations in {L1,L2,…,L j ,…,L m The average relation of all relations in} is determined as the first sub-model.

3. The method for optimizing the preparation process of the oxygen reference electrode material according to claim 2, characterized in that: S340 also includes: if {e1, e2, ..., e j ,…,e m } has a mean square error greater than a preset error threshold, then proceed to S350; S350, training the target neural network model using the dispersed solution sample data included in A; S360, determining the trained target neural network model as the first sub-model.

4. The method for optimizing the preparation process of the oxygen reference electrode material according to claim 2, characterized in that: S340 also includes: if {e1, e2, ..., e j ,…,e m } any mean square error is less than or equal to the preset error threshold and {L1,L2,…,L j ,…,L m }, if there is a relational expression whose similarity with other relational expressions is less than a preset similarity threshold, then the process proceeds to S350; S350, training the target neural network model using the dispersed solution sample data included in A; S360, determining the trained target neural network model as the first sub-model.

5. The method for optimizing the preparation process of the oxygen reference electrode material according to claim 2, characterized in that: {L1,L2,…,L j ,…,L m The process of obtaining the similarity between any two relational expressions in} includes: S341, obtaining a target data point set; the target data point set includes a plurality of target data points, and any target data point is composed of a mass value of polyvinyl alcohol, a mass value of chromium trioxide, and a mass value of iron trioxide; and there are no identical target data points in the target data point set; S342, each target data point in the target data point set is substituted into the first specified relational expression and the second specified relational expression, and a difference value corresponding to each target data point obtained according to the first relational expression and the second relational expression is obtained; the first specified relational expression is {L1, L2, …, L j ,…,L m }, the second specified relation is {L1,L2,…,L j ,…,L m } any relation that is not the first specified relation; S343, if the difference value corresponding to a target data point is less than or equal to a preset difference value threshold, the target data point is determined to be a consistent data point; S344, determining the ratio of the number of consistent data points in the target data point set as the similarity between the first specified relationship expression and the second specified relationship expression.

6. The method for optimizing the preparation process of the oxygen reference electrode material according to claim 2, characterized in that: {L1,L2,…,L j ,…,L m The process of obtaining the average relational expression of all relational expressions in} includes: S345, according to {L1,L2,…,L j ,…,L m }, each relational expression obtains the optimal speed of adding chromium trioxide and ferric oxide to the modified solution corresponding to each specified data point; any specified data point belongs to the specified data point set, and any specified data point is composed of a mass value of polyvinyl alcohol, a mass value of chromium trioxide, and a mass value of ferric oxide; S346, obtaining an average optimal speed corresponding to each designated data point; the average optimal speed corresponding to any designated data point is the average value of the optimal speeds for adding chromium trioxide and iron trioxide to the modified solution corresponding to the designated data point; S347, performing curve fitting according to the average optimal speed corresponding to each designated data point, and determining the obtained relationship as {L1, L2, ..., L j ,…,L m The average relation of all relations in}.

7. The method for optimizing the preparation process of the oxygen reference electrode material according to claim 1, characterized in that: The concentration of the mixed solution is 0.1%, the volume of the mixed solution is 2L, and the volume of the added chelating dispersant is 2ml; the modified solution after adding chromium trioxide and ferric oxide is stirred for 1 hour, and the dispersed solution after adding chromium powder is stirred for 2 hours.

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