CN113030224A - Electrochemical performance test method of lead alloy electrode - Google Patents
Electrochemical performance test method of lead alloy electrode Download PDFInfo
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- CN113030224A CN113030224A CN202110249492.8A CN202110249492A CN113030224A CN 113030224 A CN113030224 A CN 113030224A CN 202110249492 A CN202110249492 A CN 202110249492A CN 113030224 A CN113030224 A CN 113030224A
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- electrode
- electrochemical performance
- lead alloy
- cylinder
- mercury
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- 229910000978 Pb alloy Inorganic materials 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000011056 performance test Methods 0.000 title claims abstract description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 22
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000012360 testing method Methods 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000005011 phenolic resin Substances 0.000 claims abstract description 10
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 10
- MINVSWONZWKMDC-UHFFFAOYSA-L mercuriooxysulfonyloxymercury Chemical compound [Hg+].[Hg+].[O-]S([O-])(=O)=O MINVSWONZWKMDC-UHFFFAOYSA-L 0.000 claims abstract description 7
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910000370 mercury sulfate Inorganic materials 0.000 claims abstract description 7
- 229910000371 mercury(I) sulfate Inorganic materials 0.000 claims abstract description 7
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229920005989 resin Polymers 0.000 claims abstract description 4
- 239000011347 resin Substances 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims abstract description 4
- 238000004806 packaging method and process Methods 0.000 abstract description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- YADSGOSSYOOKMP-UHFFFAOYSA-N dioxolead Chemical compound O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000009763 wire-cut EDM Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/4163—Systems checking the operation of, or calibrating, the measuring apparatus
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
The invention relates to a method for testing the electrochemical performance of a lead alloy electrode, belonging to the technical field of the electrochemical performance test of the electrode. The method comprises the following steps: cutting the test reaction element into a cylinder with the bottom surface circle diameter of 8mm, and welding the cut cylinder with a copper wire; placing the welded element into a mold, pouring a prepared phenolic resin solution, and obtaining an original element only with the same bottom surface circular area after the resin is taken out qualitatively; putting the element into a sulfuric acid solution, simultaneously putting a reference electrode mercury/mercurous sulfate electrode and an auxiliary electrode platinum electrode, connecting the reference electrode mercury/mercurous sulfate electrode and the auxiliary electrode platinum electrode with an instrument, and adjusting test parameters to measure; the method solves the problem of difficult control of the reaction area, and the phenolic resin packaging is convenient and simple and has low cost.
Description
Technical Field
The invention relates to a method for testing the electrochemical performance of a lead alloy electrode, belonging to the technical field of the electrochemical performance test of the electrode.
Background
On the way of industrialization of the current electrolytic technology, the development of electrode materials greatly limits the progress of industrialization. Electrode materials commonly used in industry today are titanium-based noble metal oxide coated electrodes (DSA electrodes), graphite electrodes, lead alloy electrodes and lead dioxide electrodes. In modern electrolysis industry, lead and lead alloy electrodes can be used as cathode materials and anode materials, and have the characteristics of high oxygen evolution and oxygen evolution overpotential, sulfuric acid medium corrosion resistance and the like.
However, the lead alloy is an alloy obtained by using lead as a base and then adding other elements. Therefore, lead has high specific gravity, poor conductivity, low strength and easy deformation, has insufficient creep resistance at the working temperature, and has certain solubility to pollute the cathode electrodeposition product. At present, the modification research on lead alloy mainly comprises the addition of multi-element metal or rare earth elements and the plating of the surface of a polar plate so as to achieve the purposes of improving the strength of a lead alloy matrix and improving the conductivity.
In order to better enable the performance of the lead alloy to be applied to industrialization, the electrochemical performance is measured in a laboratory in advance, and the industrialization cost is reduced.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a method for testing electrochemical performance of a lead alloy electrode, which specifically includes the following steps:
(1) cutting the test reaction element into a cylinder with the bottom surface circle diameter of 8mm, and welding the cut cylinder with a copper wire;
(2) placing the welded element into a mold, pouring a prepared phenolic resin solution, and obtaining an original element only with the same circular area of the bottom surface after the resin is taken out qualitatively;
(3) and (3) putting the element into a sulfuric acid solution, simultaneously putting a reference electrode mercury/mercurous sulfate electrode and an auxiliary electrode platinum electrode, connecting the reference electrode mercury/mercurous sulfate electrode and the auxiliary electrode platinum electrode with an instrument, and adjusting test parameters to measure.
Preferably, the copper wire of the present invention is welded to the upper surface of the cylindrical body.
Preferably, the concentration of the sulfuric acid solution is 1 mol/L.
The invention has the beneficial effects that:
(1) adopt the wire cut electrical discharge machining to evenly cut into the invariable cylinder of circle area of bottom surface, reuse phenolic resin to encapsulate the cylinder and only leave the bottom surface circle that the area is the same, can make reaction area unanimous like this, solved the difficult problem that reaction area is not controlled well.
(2) The method of the invention uses phenolic resin for packaging, which is convenient and simple and has low cost, and the phenolic resin does not participate in the reaction in 1mol/L sulfuric acid solutionThe area of the lead electrode participating in the reaction is fixed (generally only 50 mm)2) Therefore, the electrolyte can be reused, and a sulfuric acid solution is not required to be prepared frequently, so that the method is safe and saves sulfuric acid.
Drawings
FIG. 1 is a lead alloy sheet for which testing is desired;
FIG. 2 is a lead alloy cylinder obtained after wire cutting;
FIG. 3 is a lead alloy electrode after soldering;
FIG. 4 is a lead alloy electrode encapsulated with a phenolic resin;
FIG. 5 shows the respective reaction electrodes placed in a sulfuric acid solution.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments, but the scope of the present invention is not limited to the contents.
Example 1
The reaction element used in this embodiment is a rectangular plate with different sizes and uneven thickness, as shown in fig. 1, in order to control the areas participating in the electrochemical reaction to be consistent and to make the experiment smoothly developed, the size of the lead alloy electrode used in the reaction needs to be adjusted.
Adopt wire cut electrical discharge machining to cut the polar plate, cut into the cylinder that the diameter of bottom surface circle is 8mm, as long as guarantee that the area of bottom surface circle is unanimous, just can guarantee to participate in the area unanimity of electrochemical reaction, this size can guarantee simultaneously that the experiment can go on smoothly, as shown in figure 2.
In order to make the electrochemical testing apparatus capable of being well connected, the cut cylinder is welded by using copper wires, and the upper bottom surface is selected as the welding position in order to completely keep a bottom surface circle, as shown in fig. 3.
Preparing phenolic resin, putting the welded element into a mould, pouring the prepared phenolic resin solution, and taking out the element after the resin is qualitative, as shown in figure 4.
Preparing 1mol/L sulfuric acid solution, putting the element into the solution, simultaneously putting a reference electrode mercury/mercurous sulfate electrode and an auxiliary electrode platinum electrode, connecting with an instrument, and adjusting test parameters to measure, as shown in figure 5.
Claims (3)
1. The electrochemical performance test method of the lead alloy electrode is characterized by comprising the following steps:
(1) cutting the test reaction element into a cylinder with the bottom surface circle diameter of 8mm, and welding the cut cylinder with a copper wire;
(2) placing the welded element into a mold, pouring a prepared phenolic resin solution, and obtaining an original element only with the same bottom surface circular area after the resin is taken out qualitatively;
(3) and (3) putting the element into a sulfuric acid solution, simultaneously putting a reference electrode mercury/mercurous sulfate electrode and an auxiliary electrode platinum electrode, connecting the reference electrode mercury/mercurous sulfate electrode and the auxiliary electrode platinum electrode with an instrument, and adjusting test parameters to measure.
2. The method for testing the electrochemical performance of the lead alloy electrode according to claim 1, wherein: the copper wire is welded on the upper surface of the cylinder.
3. The method for testing the electrochemical performance of the lead alloy electrode according to claim 1, wherein: the concentration of the sulfuric acid solution was 1 mol/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110249492.8A CN113030224A (en) | 2021-03-08 | 2021-03-08 | Electrochemical performance test method of lead alloy electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110249492.8A CN113030224A (en) | 2021-03-08 | 2021-03-08 | Electrochemical performance test method of lead alloy electrode |
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| Publication Number | Publication Date |
|---|---|
| CN113030224A true CN113030224A (en) | 2021-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110249492.8A Pending CN113030224A (en) | 2021-03-08 | 2021-03-08 | Electrochemical performance test method of lead alloy electrode |
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| Country | Link |
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| CN (1) | CN113030224A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0594925A (en) * | 1991-10-01 | 1993-04-16 | Japan Storage Battery Co Ltd | Electric double layer capacitor |
| CN105609784A (en) * | 2015-09-16 | 2016-05-25 | 扬州大学 | Method for preparing lead-acid storage battery positive grid from praseodymium-cerium doped lead calcium tin aluminum alloy |
| CN106990156A (en) * | 2017-06-08 | 2017-07-28 | 广西大学 | The electrochemical test method that Galvanic is acted in sulfide flotation |
| CN108548775A (en) * | 2018-04-20 | 2018-09-18 | 攀枝花学院 | Enamel coating electrode and preparation method, corrosion resistance test method |
| CN112290033A (en) * | 2020-09-25 | 2021-01-29 | 天能电池集团股份有限公司 | Grid surface area calculation method |
-
2021
- 2021-03-08 CN CN202110249492.8A patent/CN113030224A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0594925A (en) * | 1991-10-01 | 1993-04-16 | Japan Storage Battery Co Ltd | Electric double layer capacitor |
| CN105609784A (en) * | 2015-09-16 | 2016-05-25 | 扬州大学 | Method for preparing lead-acid storage battery positive grid from praseodymium-cerium doped lead calcium tin aluminum alloy |
| CN106990156A (en) * | 2017-06-08 | 2017-07-28 | 广西大学 | The electrochemical test method that Galvanic is acted in sulfide flotation |
| CN108548775A (en) * | 2018-04-20 | 2018-09-18 | 攀枝花学院 | Enamel coating electrode and preparation method, corrosion resistance test method |
| CN112290033A (en) * | 2020-09-25 | 2021-01-29 | 天能电池集团股份有限公司 | Grid surface area calculation method |
Non-Patent Citations (4)
| Title |
|---|
| SONG YI CHOI 等: "Electrochemical Reduction of Carbon Dioxide to Formate on Tin–Lead Alloys", 《ACS SUSTAINABLE CHEMISTRY & ENGINEERING》 * |
| 戴长松等: "电沉积铅合金在硫酸中循环伏安行为的研究", 《哈尔滨工业大学学报》 * |
| 王玉成: "无锡钢电镀过程中阳极腐蚀机理研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
| 许文林等: "硫酸溶液中铈离子对铅钙合金电极/电解液界面电化学特性的影响", 《蓄电池》 * |
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Application publication date: 20210625 |
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