CN203396742U - Electrolytic cell device with three-electrode system for electrochemical testing - Google Patents
Electrolytic cell device with three-electrode system for electrochemical testing Download PDFInfo
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- CN203396742U CN203396742U CN201320475719.1U CN201320475719U CN203396742U CN 203396742 U CN203396742 U CN 203396742U CN 201320475719 U CN201320475719 U CN 201320475719U CN 203396742 U CN203396742 U CN 203396742U
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Abstract
The utility model relates to an electrolytic cell device with a three-electrode system for electrochemical testing, which belongs to the technical field of the electrochemical testing. The electrolytic cell device comprises a tank body, a sealing cover and a fastening thread plate, wherein the tank body is of a hollow rectangular structure with the opened upper end; a liquid draining hole is formed in the bottom end of the tank wall on one side of the tank body; a working electrode through hole is formed in the middle of the tank wall opposite to the liquid draining hole; the circle center of the working electrode through hole is arranged on a vertical center line of the tank wall on the side; an orifice in the outer side of the working electrode through hole is fixedly connected with a through hole sealing ring; the fastening thread plate is bonded with the outer side of the tank wall of the tank body; a thread through hole is formed in the middle of the fastening thread plate and arranged by being concentric to the working electrode through hole; a rectangular groove is vertically formed in the fastening thread plate at the upper part of the thread through hole; the lower end of the rectangular groove corresponds to the thread through hole; a fastening bolt is connected in the thread through hole; the sealing cover is matched with the opened end of the tank body in a sealing manner; a rubber plug hole is formed in the sealing cover; the circle center of the rubber plug hole is in the same vertical plane with that of the working electrode through hole.
Description
Technical field
The utility model belongs to Electrochemical Measurement Technology field, particularly relates to a kind of three-electrode system electrolytic cell device for electro-chemical test.
Background technology
In Electrochemical Measurement Technology field, traditional three-electrode system is to adopt electrode system the most widely, but when actual experiment operates, traditional three-electrode system still has the following disadvantages:
1, the preparation difficulty of working electrode is large.
The constancy of the quality of working electrode preparation quality and working electrode test face area is the direct factor that affects experimental result stability and authenticity.
In material corrosion performance study, conventionally adopt epoxy resin to encapsulate sample.But this preparation method is very easy to occur micro gap that naked eyes cannot be discovered or bubble between working electrode and epoxy resin and makes to encapsulate unsuccessfully, and is difficult to guarantee that the test face area of each sample keeps constant.
While proceeding subsequent experimental in the situation that not finding this problem, will have a strong impact on electrode process (undesirable crevice corrosion often occurs), finally make result of study distortion the failure of an experiment.In addition, this method for packing efficiency is low, success ratio is low, and only for larger-size bar-shaped or block sample, it is relatively easy to encapsulate, but very difficult for the sheet specimens compared with thin.First, thin slice when encapsulation extremely difficulty avoid gap or bubble, and the direct welding lead in the Qi back side easily penetrates workplace and calcellation sample, and welding process is cumbersome; Secondly, when the sample after encapsulation carries out surface finish, cleaning, be easy to make thin slice and approved sample material production gap even to peel away sample is scrapped.
2, three electrode relative position relations are unfixing.
In electro-chemical test, especially corrosive nature experiment, polarization curve for mapping experiment material, often under equivalent environment, repeatedly measure single or multiple material, if three electrode relative position changes, bath resistance size is changed, must have influence on accuracy and the reliability of surveyed potential value, the repeatedly data of homogenous material and the result data of multiple material all will lose contrast property, will cause the failure of an experiment.
3, electrolytic cell selects disunity.
Conventionally the electrolytic cell of selecting has beaker, tank etc. multiple from container made.For beaker, be unfavorable for providing atmosphere controlled stable enclosed environment to experiment, must require strict experiment to produce the impact of can not ignore to atmosphere, make experimental result serious distortion.And other special uses from container made often only for single test experiments, there is the limitation such as universality deficiency, when changing sample type or experiment condition, cannot continue to use original device.In addition, the special-purpose residue that is difficult to thoroughly clean inwall after container made is used, will change composition or the concentration of experiment next time electrolytic solution, and this is for requiring strict electrochemistry experiment, and the impact bringing be can not ignore often.
Utility model content
The problem existing for prior art, the utility model provide a kind of working electrode can be external, cell body with capping is detachable, three electrode relative position relations are fixed, easy to clean, applicability by force and the three-electrode system electrolytic cell device for electro-chemical test that operation is simple.
To achieve these goals, the utility model adopts following technical scheme: a kind of three-electrode system electrolytic cell device for electro-chemical test, comprise cell body, capping and fastening screw card, described cell body is the hollow rectangle body structure that upper end has opening, a side channel wall bottom at cell body is provided with outage, in outage arranged outside, has outage plug, on the cell wall relative with described outage, be provided with working electrode through hole, working electrode through hole is positioned at the middle part of this side channel wall, and the center of circle is arranged on the vertical center line of this side channel wall, aperture, outside at working electrode through hole is connected with through hole O-ring seal, cell wall outside at working electrode through hole place is bonded with fastening screw card, the middle part of described fastening screw card is provided with tapped through hole, described tapped through hole arranges with working electrode through hole is concentric, on the fastening screw card on tapped through hole top, be vertically installed with rectangular channel, the lower end of rectangular channel is corresponding with tapped through hole, in described tapped through hole, be threaded connection fastening bolt,
Described capping is sealed and matched by the openend of capping packing washer and cell body, in capping, along a center line, be disposed with the first plug hole, the second plug hole and the 3rd plug hole, the circle centre position of described the first plug hole, the second plug hole and the 3rd plug Kong center of circle and working electrode through hole is on same vertical plane.
The described width being sealed in the first plug hole, the second plug hole and the 3rd plug hole orientation is identical with the width of cell body, and the width on other direction is greater than the width of cell body.
Described cell body, capping, fastening screw card and fastening bolt all adopt organic glass.
Sidepiece in described capping is provided with standby plug hole.
In the horizontal direction at described fastening screw card middle part, be provided with auxiliary rectangular channel.
The aperture, inner side of described working electrode through hole adopts rounded corner or straight chamfering.
Described through hole O-ring seal adopts silica gel sealing ring.
The beneficial effects of the utility model:
1, compared with prior art, when electro-chemical test, working electrode can be external for the utility model, and by fastening bolt, working electrode is pressed on outside working electrode through hole, without encapsulation sample, easy to prepare quick when prepared by working electrode, further improved test efficiency.
2, the utility model compared with prior art, cell body and capping adopt detachable design, in the time of in electrolytic solution is injected into cell body, be easy to occur undischarged bubble in working electrode through hole, can to bubble, get rid of by the opening of cell body upper end, after test, be more prone to clean the residue of cell body inwall simultaneously.
3, compared with prior art, capping adopts the array mode in the first plug hole, the second plug hole, the 3rd plug hole and standby plug hole to the utility model, can meet multiple testing requirements, has broken away from the unicity drawback of prior art.
4, the utility model compared with prior art, when changing working electrode (traditional approach) or dismounting electrolytic cell device, only need integrated moving capping, guaranteed the fixing of three electrode relative positions, accuracy and the reliability of the potential value of surveying while having improved electro-chemical test simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of three-electrode system electrolytic cell device structural representation for electro-chemical test of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the side view of Fig. 1;
Fig. 4 is the structural representation of three-electrode system electrolytic cell device of the present utility model while carrying out the test of the external electro-chemical test of working electrode;
Fig. 5 is the structural representation of three-electrode system electrolytic cell device of the present utility model while carrying out the test of the built-in electro-chemical test of working electrode;
In figure, 1-cell body, 2-capping, 3-fastening screw card, the 4-the first plug hole, the 5-the second plug hole, the 6-the three plug hole, 7-outage, 8-outage plug, 9-fastening bolt, 10-rectangular channel, 11-working electrode through hole, 12-through hole O-ring seal, 13-capping packing washer, 14-standby plug hole, 15-auxiliary rectangular channel, 16-Luggin capillary, 17-to electrode, 18-thermometer, 19-copper backing, 20-working electrode, 21-mounting, 22-dividing plate.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, 2, 3, a kind of three-electrode system electrolytic cell device for electro-chemical test, comprise cell body 1, capping 2 and fastening screw card 3, described cell body 1 has the hollow rectangle body structure of opening for upper end, a side channel wall bottom at cell body 1 is provided with outage 7, in outage 7 arranged outside, has outage plug 8, on the cell wall relative with described outage 7, be provided with working electrode through hole 11, working electrode through hole 11 is positioned at the middle part of this side channel wall, and the center of circle is arranged on the vertical center line of this side channel wall, aperture, outside at working electrode through hole 11 is connected with through hole O-ring seal 12, cell wall outside at working electrode through hole 11 places is bonded with fastening screw card 3, the middle part of described fastening screw card 3 is provided with tapped through hole, described tapped through hole and the concentric setting of working electrode through hole 11, on the fastening screw card 3 on tapped through hole top, be vertically installed with rectangular channel 10, rectangular channel 10 lower end is corresponding with tapped through hole, in described tapped through hole, be threaded connection fastening bolt 9,
Described capping 2 is sealed and matched by capping packing washer 13 and the openend of cell body 1, in capping 2, along a center line, be disposed with the first plug hole 4, the second plug hole 5 and the 3rd plug hole 6, described the first plug hole 4, the second plug hole 5 and the center of circle in the 3rd plug hole 6 and the circle centre position of working electrode through hole 11 are on same vertical plane.
The width of described capping 2 in the first plug hole 4, the second plug hole 5 and the 3rd plug hole 6 orientations is identical with the width of cell body 1, and the width on other direction is greater than the width of cell body 1.
Described cell body 1, capping 2, fastening screw card 3 and fastening bolt 9 all adopt organic glass.
Sidepiece in described capping 2 is provided with standby plug hole 14.
In the horizontal direction at described fastening screw card 3 middle parts, be provided with auxiliary rectangular channel 15.
The aperture, inner side of described working electrode through hole 11 adopts rounded corner or straight chamfering ，Shi aperture place's electrolytic solution and reaction product to be more prone to diffusion, has improved the homogeneity of electric field line, makes potential test data have more accuracy and reliability.
Described through hole O-ring seal 12 adopts silica gel sealing ring.
Below in conjunction with accompanying drawing, electro-chemical test process of the present utility model is described:
Adopt the utility model to carry out the external electro-chemical test test of working electrode.
As shown in Figure 4, cell body 1 is of a size of 120mm * 81mm * 81mm, and wall thickness is 5mm, the internal diameter of working electrode through hole 11 is 10mm, the external diameter of through hole O-ring seal 12 is 18～19mm, and internal diameter is 11.3mm, and thickness is 3mm, fastening screw card 3 is of a size of 81mm * 81mm * 20mm, the width of rectangular channel 10 is 10mm, and the diameter of tapped through hole is 37mm, and the length of fastening bolt 9 is 35mm, the length of working electrode 20 and width are all at 15～24mm, and the thickness of working electrode 20 is no more than 12mm.
First installment work electrode 20, the test face of working electrode 20 is contacted to placement with through hole O-ring seal 12, in rectangular channel 10, put into copper backing 19, make copper backing 19 contact with the non-test face of working electrode 20, screw in fastening bolt 9 simultaneously, until fastening bolt 9 contacts with copper backing 19, screw fastening bolt 9, guarantee copper backing 19 and working electrode 20, working electrode 20 and through hole O-ring seal 12 close contacts, make fully sealing between working electrode 20 and through hole O-ring seal 12, working electrode 20 installs, now working electrode 20 can be irised out a 1cm by through hole O-ring seal 12 endoporus
2actual tests face (electrode reaction is carried out at electrode surface, and the significant data current density of test is to represent with the electric current of the working electrode 20 test face areas of flowing through, and unit is A/cm
2.In the utility model device, we are directly 1cm by the strict unification of the test face area of working electrode 20
2, this will bring convenience to follow-up data processing).
By Luggin capillary 16(contrast electrode) be installed in the first plug hole 4 of capping 2, will electrode 17 be installed in the second plug hole 5 of capping 2, thermometer 18 is installed in the 3rd plug hole 6 of capping 2; First the outage of cell body 17 use outage plugs 8 are blocked, then to the interior injection electrolytic solution of cell body 1; Complete after above-mentioned steps, just capping 2 can be installed, before capping 2 is installed, first working electrode through hole 11 bubble is around removed, then capping 2 and cell body 1 sealing are installed together, guarantee both sealings, fine setting Luggin capillary 16, makes the lower nozzle of Luggin capillary 16 apart from working electrode 20 test face 1mm left and right simultaneously; Fine setting, to electrode 17, makes the platinized platinum of electrode 17 be parallel to the test face of working electrode 20; In order better to control the temperature of electrolytic solution, the cell body 1 after installing can be put into water bath heat preservation device, by the temperature variation of thermometer 18 Real Time Observation electrolytic solution; According to test needs, can in the bottom of cell body 1, place magnetic stirring bar in advance, electrolytic solution is stirred; Complete after above-mentioned Overall Steps, just can be by Luggin capillary 16, electrode 17 and working electrode 20 are connected to electrochemical workstation, now just completed whole installment works, next just can record test figure.
Adopt the utility model to carry out the electro-chemical test test of working electrode built-in (traditional approach).
This test is in order to adapt to that conventional epoxies encapsulation work electrode and other needs are placed on the test in electrolytic cell cell body by working electrode and the example explanation carried out.
As shown in Figure 5, cell body 1 is of a size of 120mm * 81mm * 81mm, wall thickness is 5mm, and the internal diameter of working electrode through hole 11 is 10mm, and the external diameter of through hole O-ring seal 12 is 18～19mm, internal diameter is 11.3mm, thickness is 3mm, and fastening screw card 3 is of a size of 81mm * 81mm * 20mm, and the diameter of tapped through hole is 37mm, the length of fastening bolt 9 is 35mm, and mounting 21 is the circular organic glass sheet of diameter 20～35mm.
Because working electrode in this test 20 adopts built-in, so working electrode through hole 11 is not used, before test, make mounting 21 contact with through hole O-ring seal 12, by fastening mounting 21 and through hole O-ring seal 12 close contacts of making of fastening bolt 9, working electrode through hole 11 is blocked, and guarantee both sealings.
First will electrode 17 be installed in the first plug hole 4 of capping 2, by Luggin capillary 16(contrast electrode) be installed in the second plug hole 5 of capping 2, working electrode 20 is installed in the 3rd plug hole 6 of capping 2; According to test needs, can be in advance at the interior installation dividing plate 23 of cell body 1, dividing plate 23 can adopt the materials such as sintered microporous glass plate or porous ceramics, and dividing plate 23 will be at Luggin capillary 16 and between to electrode 17; The outage of cell body 17 use outage plugs 8 are blocked, then to the interior injection electrolytic solution of cell body 1; Complete after above-mentioned steps, just capping 2 can be installed, capping 2 and cell body 1 sealing are installed together, guarantee both sealings simultaneously, fine setting Luggin capillary 16, makes the lower nozzle of Luggin capillary 16 apart from working electrode 20 test face 1mm left and right; Fine setting, to electrode 17, makes the platinized platinum of electrode 17 be parallel to the test face of working electrode 20; Complete after above-mentioned Overall Steps, just can be by Luggin capillary 16, electrode 17 and working electrode 20 are connected to electrochemical workstation, now just completed whole installment works, next just can record test figure.
Claims (7)
1. the three-electrode system electrolytic cell device for electro-chemical test, it is characterized in that: comprise cell body, capping and fastening screw card, described cell body is the hollow rectangle body structure that upper end has opening, a side channel wall bottom at cell body is provided with outage, in outage arranged outside, has outage plug, on the cell wall relative with described outage, be provided with working electrode through hole, working electrode through hole is positioned at the middle part of this side channel wall, and the center of circle is arranged on the vertical center line of this side channel wall, aperture, outside at working electrode through hole is connected with through hole O-ring seal, cell wall outside at working electrode through hole place is bonded with fastening screw card, the middle part of described fastening screw card is provided with tapped through hole, described tapped through hole arranges with working electrode through hole is concentric, on the fastening screw card on tapped through hole top, be vertically installed with rectangular channel, the lower end of rectangular channel is corresponding with tapped through hole, in described tapped through hole, be threaded connection fastening bolt,
Described capping is sealed and matched by the openend of capping packing washer and cell body, in capping, along a center line, be disposed with the first plug hole, the second plug hole and the 3rd plug hole, the circle centre position of described the first plug hole, the second plug hole and the 3rd plug Kong center of circle and working electrode through hole is on same vertical plane.
2. a kind of three-electrode system electrolytic cell device for electro-chemical test according to claim 1, it is characterized in that: described in the width that is sealed in the first plug hole, the second plug hole and the 3rd plug hole orientation identical with the width of cell body, the width on other direction is greater than the width of cell body.
3. a kind of three-electrode system electrolytic cell device for electro-chemical test according to claim 1, is characterized in that: described cell body, capping, fastening screw card and fastening bolt all adopt organic glass.
4. a kind of three-electrode system electrolytic cell device for electro-chemical test according to claim 1, is characterized in that: the sidepiece in described capping is provided with standby plug hole.
5. a kind of three-electrode system electrolytic cell device for electro-chemical test according to claim 1, is characterized in that: in the horizontal direction at described fastening screw card middle part, be provided with auxiliary rectangular channel.
6. a kind of three-electrode system electrolytic cell device for electro-chemical test according to claim 1, is characterized in that: the aperture, inner side of described working electrode through hole adopts rounded corner or straight chamfering.
7. a kind of three-electrode system electrolytic cell device for electro-chemical test according to claim 1, is characterized in that: described through hole O-ring seal adopts silica gel sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320475719.1U CN203396742U (en) | 2013-08-06 | 2013-08-06 | Electrolytic cell device with three-electrode system for electrochemical testing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320475719.1U CN203396742U (en) | 2013-08-06 | 2013-08-06 | Electrolytic cell device with three-electrode system for electrochemical testing |
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| CN203396742U true CN203396742U (en) | 2014-01-15 |
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| CN201320475719.1U Expired - Fee Related CN203396742U (en) | 2013-08-06 | 2013-08-06 | Electrolytic cell device with three-electrode system for electrochemical testing |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535485A (en) * | 2014-12-26 | 2015-04-22 | 大连理工大学 | Corrosive electrolytic tank device applied to monitoring environmental parameters considering stress influence in real time |
| CN104568729A (en) * | 2014-12-26 | 2015-04-29 | 大连理工大学 | Corrosion electrolytic cell device suitable for considering stress gradient influence |
| CN104677961A (en) * | 2015-03-09 | 2015-06-03 | 扬州工业职业技术学院 | Elastic clamping device with position of three-electrode system adjustable |
| CN105679151A (en) * | 2016-03-31 | 2016-06-15 | 济南大学 | Novel electrolyte solution experimental device |
| CN108426929A (en) * | 2018-05-09 | 2018-08-21 | 江苏理工学院 | A kind of detachable external electrochemical test device for three-electrode system of working electrode |
| CN110082408A (en) * | 2019-04-29 | 2019-08-02 | 上海电力学院 | A kind of detachable electrochemical working electrode |
| CN115541409A (en) * | 2022-11-24 | 2022-12-30 | 东北大学 | Metal cylinder sample fatigue test device suitable for under ultra-low temperature environment |
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2013
- 2013-08-06 CN CN201320475719.1U patent/CN203396742U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535485A (en) * | 2014-12-26 | 2015-04-22 | 大连理工大学 | Corrosive electrolytic tank device applied to monitoring environmental parameters considering stress influence in real time |
| CN104568729A (en) * | 2014-12-26 | 2015-04-29 | 大连理工大学 | Corrosion electrolytic cell device suitable for considering stress gradient influence |
| CN104568729B (en) * | 2014-12-26 | 2017-12-01 | 大连理工大学 | Corrosion electrolytic cell device suitable for considering stress gradients affect |
| CN104677961A (en) * | 2015-03-09 | 2015-06-03 | 扬州工业职业技术学院 | Elastic clamping device with position of three-electrode system adjustable |
| CN105679151A (en) * | 2016-03-31 | 2016-06-15 | 济南大学 | Novel electrolyte solution experimental device |
| CN105679151B (en) * | 2016-03-31 | 2018-03-27 | 济南大学 | A kind of new electrolytic solution experimental provision |
| CN108426929A (en) * | 2018-05-09 | 2018-08-21 | 江苏理工学院 | A kind of detachable external electrochemical test device for three-electrode system of working electrode |
| CN108426929B (en) * | 2018-05-09 | 2020-07-28 | 江苏理工学院 | Electrochemical testing device with detachable and external working electrode for three-electrode system |
| CN110082408A (en) * | 2019-04-29 | 2019-08-02 | 上海电力学院 | A kind of detachable electrochemical working electrode |
| CN115541409A (en) * | 2022-11-24 | 2022-12-30 | 东北大学 | Metal cylinder sample fatigue test device suitable for under ultra-low temperature environment |
| CN115541409B (en) * | 2022-11-24 | 2023-03-07 | 东北大学 | Metal cylinder sample fatigue test device suitable for under ultra-low temperature environment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20170806 |
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| CF01 | Termination of patent right due to non-payment of annual fee |