CN209264619U - Multi-channel electrochemical test job electrode and electrolytic cell corollary apparatus - Google Patents
Multi-channel electrochemical test job electrode and electrolytic cell corollary apparatus Download PDFInfo
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- CN209264619U CN209264619U CN201821942031.9U CN201821942031U CN209264619U CN 209264619 U CN209264619 U CN 209264619U CN 201821942031 U CN201821942031 U CN 201821942031U CN 209264619 U CN209264619 U CN 209264619U
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- 238000000840 electrochemical analysis Methods 0.000 title claims abstract description 48
- 238000012360 testing method Methods 0.000 claims abstract description 24
- 239000007772 electrode material Substances 0.000 claims abstract description 13
- 230000010287 polarization Effects 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 27
- 229910002804 graphite Inorganic materials 0.000 claims description 27
- 239000010439 graphite Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 24
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 claims description 2
- 239000000243 solution Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 229940021013 electrolyte solution Drugs 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
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- 238000003379 elimination reaction Methods 0.000 description 1
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- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model provides a kind of multi-channel electrochemical test job electrode and electrolytic cell corollary apparatus, has: multi-channel electrochemical test job electrode, comprising: the bracket through hole array with M × N, and the test electrode being embedded in through hole；Attachment device, including having the M × N number of hole buckle closure for placing power spring；Electrolytic cell, the support annulus including supporting multi-channel electrochemical test job electrode, bottom end are placed with to electrode, support on annulus containing multiple reference electrode preformed holes to place multiple reference electrodes, and to draw to the conducting wire of electrode to electrode preformed hole；The one end for testing electrode is coated with electrode material, the conductive spring contacts in the other end and attachment device；Multi-channel electrochemical test job electrode, reference electrode are connected respectively with the electrochemical workstation for providing polarization current or polarizing voltage to carry out electro-chemical test to electrode.The utility model can reduce cost and easy to use.
Description
Technical field
The utility model relates to a kind of multi-channel electrochemical test job electrode and electrolytic cell corollary apparatus, are applied to electricity
Test chemical and electrode material screen field.
Background technique
The building method of the three-electrode system of electro-chemical test and electrochemical test method under three-electrode system are in field
It is interior known.
With the proposition of material genome plan, high-throughput design, combination preparation and high-throughput detection sieve are carried out to material
Choosing is put forward new requirements.In electrode material present Research, using the method for Computer materials science and to material microstructure
Rule summary, may be implemented to carry out high-throughput design to electrode material.It is heavy using mask physical vapor in preparation method
The methods of area method may be implemented that material array is prepared to the combination of material.But in testing field, at present to electrode material
Test and screen it is most widely used be still single channel test method, construct three-electrode system, this test screen method one
It is secondary to test a kind of electrode material, and electrode sample preparation process is complicated, inefficiency seriously constrains grinding for advanced material
Hair and breakneck acceleration, improve research and development cost.It thus needs to design the multi-channel electrochemical that suitably can be applied to combination technique
Test job electrode and corresponding electrolytic cell, to meet the requirement for carrying out high frequency zone to material.
In document " Combinatorial screening of fuel cell cathode catalyst
Proposing one kind in compositions " (Appl. Surface Sci., 2007,254,662) can be applied to combination technique
The working electrode device and cell design for carrying out the screening of fuel battery negative pole electrocatalysis material, using magnetron sputtering technique,
Deposit alloy material on titanium nitride layer can prepare the array comprising 76 kinds of materials, but it uses optical etching technology, is prepared into
This is higher.The deposit alloy thin layer on titanium nitride layer, thin layer are difficult to wash away or clash, and titanium nitride layer is close-coupled at silicon substrate
On, entire electrode does not have reusing, improves use cost, causes waste of material.And working electrode is placed on electrolysis
Pond lower part, there are certain sealing problems and leakage risk.Scriber company, the U.S. is proposed Model MMA 900 | and 910 types are more
Channel electrochemical workstation can carry out high-throughput test screen to material, but its matched working electrode area is too small, material
Material is difficult to be combined synthesis, and inconvenient for use, this seriously constrains material and prepares testing efficiency.
Need to provide a kind of working electrode applied to high-throughput combine detection, cost is relatively low and has certain recycling
Property.And sealing problem can be solved.
Need to provide a kind of multichannel attachment device that working electrode is connected with electrochemical workstation.
It needs to provide a kind of electrolytic cell that can be applied to combine detection, multi-channel electrochemical test job electricity can be carried
Pole, and can solve as system becomes large-sized and caused by solution resistance it is excessive the problems such as.
Utility model content
Lead to test screen inefficiency to solve present widely applied single channel electro-chemical test working electrode
Higher cost caused by problem and existing multi-channel electrochemical test job electrode design, problem inconvenient for use, this reality
With a kind of multi-channel electrochemical test job electrode of new design and electrolytic cell corollary apparatus, have such as flowering structure:
Multi-channel electrochemical test job electrode comprising: the bracket through hole array with M × N, and be embedded in
Test electrode in the through hole；
Attachment device comprising there is the M × N number of hole buckle closure for placing power spring；
Electrolytic cell comprising support the support annulus of the multi-channel electrochemical test job electrode, bottom end is placed with pair
Electrode, containing multiple reference electrode preformed holes to place multiple reference electrodes on the support annulus, and to draw
It states to the conducting wire of electrode to electrode preformed hole；
One end of the test electrode is coated with electrode material, the power spring in the other end and the attachment device
Contact；
The multi-channel electrochemical test job electrode, reference electrode, to electrode respectively with polarization current or polarization are provided
The electrochemical workstation of voltage is connected to carry out electro-chemical test.
Preferably, have positioning used for positioning recessed on the bracket of the multi-channel electrochemical test job electrode
Slot,
The attachment device has the anchor point that positioning is matched with the positioning groove.
Preferably, the bracket in the multi-channel electrochemical test job electrode is potsherd, and the test electrode is stone
Inker.
Preferably, the material of the buckle closure in the attachment device is polytetrafluoroethylene (PTFE),
The power spring is connect by conducting wire with the electrochemical workstation.
Preferably, described is graphite flake to electrode.
Preferably, the electrolytic cell material is glass.
Preferably, the M × N is less than 200.
Detailed description of the invention
Fig. 1 a-1c is three-view diagram after multi-channel electrochemical test job electrode assembling, and 1a is main view, and 1b is right view,
1c is top view.
Fig. 2 a-2c is attachment device three-view diagram, and 2a is main view, and 2b is right view, and 2c is top view.
Fig. 3 a-3c is three-view diagram after attachment device and multi-channel electrochemical test job electrode assembling, and 3a is main view,
3b is right view, and 3c is top view.
Fig. 4 a-4c is the electrolyser construction schematic diagram applied to multi-channel electrochemical test job electrode, wherein based on 4a
View, 4b are right side view, and 4c is top view.
Fig. 5 is the electrolytic cell part equivalent circuit using a reference electrode.
Fig. 6 is the electrolytic cell part equivalent circuit using four reference electrodes.
Fig. 7 is working electrode and cell operation schematic diagram.
Specific embodiment
The utility model is further described with implementation form with reference to the accompanying drawing.
As illustrated by figures 1 a-1 c, utility model works electrod-array include bracket 1. with test electrode 2., this implementation form
In, 1. bracket is porous ceramic chip, 2. test electrode is working electrode, is graphite rod in the present embodiment, that is, uses porous ceramics
Piece inlays fixed graphite rod as array of working electrodes.
Specifically, Fig. 1 a-1c is three-view diagram after multi-channel electrochemical test job electrode assembling, 1a is main view, 1b
For right view, 1c is top view.The dimensional parameters of each component are referring to attached drawing.Potsherd may include such as 10 × 10 through hole battle array
Column, as array of working electrodes bracket.Graphite rod is chosen as working electrode, inlays and is fixed in through hole, graphite rod one end
For coated electrode material, for the other end for contacting with attachment device, 100 graphite rod array of working electrodes reach multichannel survey
Try the purpose of screening.After having carried out primary test, the electrode material on graphite rod top can be removed by polishing, reach device
The purpose of recycling.3. positioning groove on potsherd is used to position.Potsherd uses high temperature resistant, acid-alkali-corrosive-resisting material system
Make and (preferably use aluminium oxide ceramics), graphite rod is embedded in the through hole of potsherd.The face graphite rod A one end is used for coated electrode
Material, the method that the physical vapour deposition (PVD) or non-combined artificial dropwise addition electrode powder body material ink of combination can be used.Graphite
The face stick B one end with the power spring of attachment device shown in Fig. 2 a-2c for being in contact.This design is convenient to be combined material
Preparation and processing.The electrocatalysis material on surface can be removed by polishing after the completion of use graphite rod, realize electrode
Recycling.Graphite rod diameter of phicDepending on according to combination magnetron sputtering mask size or the dropper size of ink is added dropwise, this is adopted
With diameter 3mm graphite rod, potsherd diameter of phiaDepending on graphite rod diameter and quantity, this uses 80mm.
It is a kind of for connecting the attachment device of working electrode and electrochemical workstation, 2a is main view shown in Fig. 2 a-2c
Figure, 2b is right view, and 2c is top view.It includes that porous buckle closure 21(preferably uses polytetrafluoroethylene (PTFE) to make, it also can be used
His acid-alkali-corrosive-resisting material) and connecting wire power spring 22.Specifically, attachment device is using porous in this implementation form
Polytetrafluoroethylene (PTFE) cylindrical body buckle closure 21 embeds the power spring 22 of connecting wire.Buckle closure 21 may include 10 × 10 hole array, stone
Inker is contacted for connecting attachment device, the hole array that one end can be inserted into 10 × 10 with power spring 22, passes through conducting wire and electrification
Learn work station connection.For placing potsherd in the multi-channel electrochemical test job electrode, anchor point 24 is used for groove 23
Positioning is 3. matched with the positioning groove of the multi-channel electrochemical test job electrode, circular hole 25 is for placing leading for connecting wire
Electrical spring 22, and the face graphite rod B one end inserted with the multi-channel electrochemical test job electrode, through hole 26 is for drawing
The conducting wire of the power spring 22 of connecting wire.Buckle closure diameter of phibAccording to potsherd diameter of phiaDepending on, this uses 90mm.
Fig. 3 a-3c is three-view diagram after attachment device and multi-channel electrochemical test job electrode assembling, and 3a is main view,
3b is right view, and 3c is top view.Porous ceramic chip 31 be embedded in buckle closure 21 groove 23 in, positioning groove 3. with anchor point 24
With positioning, the end graphite rod A 33 of multi-channel electrochemical test job electrode is used for coated electrode material, and the end graphite rod B 34 is inserted into
It is in contact in 21 circular hole of buckle closure with the power spring of connecting wire, the external electrochemical workstation of power spring 22 of connecting wire.
Electrolytic cell in this implementation form is to add a support annulus on glass cylinder shape cup top, is used to support work
Make electrod-array, cup bottom end is placed a graphite flake and is used as to electrode, supports and contain multiple through holes on annulus, wherein reference electricity
Pole preformed hole draws graphite flake to the conducting wire of electrode for placing multiple reference electrodes, to electrode preformed hole.It is multiple by placing
Reference electrode alleviates the influence of solution resistance.
It in detail, is the electrolyser construction signal applied to multi-channel electrochemical test job electrode shown in Fig. 4 a-4c
Figure, wherein 4a be main view, 4b is right side view, and 4c is top view comprising solution cup 41, as support annulus flange
42 reference electrode preformed hole 43 of disk, to electrode preformed hole 44.Four reference electrode preformed holes 43 are provided in the embodiment to be used for
Reference electrode is placed, referring to aftermentioned, the influence of solution resistance can be reduced.Solution cup bottom is for placing a graphite flake pair
Electrode, to electrode preformed hole 44 for drawing to electrode connecting wire.
Specifically, Fig. 5 and Fig. 6 are electrolytic cell part equivalent circuits, it is molten for illustrating to reduce using multiple reference electrodes
The influence of liquid resistance.Wherein Fig. 5 is using the electrolytic cell equivalent circuit of a reference electrode, and Fig. 6 is using four reference electrodes
Electrolytic cell equivalent circuit.Wherein, a is working electrode, and using resistance replacing representation, b, c are reference electrodes, constant using one
Polarization power supply indicates that reference electrode provides stable potential in practical systems and inside f hardlyes pass through electric current, thus available one
The polarization power supply for not providing electric current indicates that d, e are solution resistances, are indicated with fixed value resistance R, and f is voltmeter, for measuring work
Potential difference between electrode and reference electrode.When distance, survey between temperature, concentration of electrolyte solutions, solution sectional area, two test points
When the factors such as voltage determine between pilot, electrical conductivity of solution is uniquely determined.As shown in fig. 6, when using four reference electrodes, according to
Equivalent circuit, each reference electrode are connected in parallel, the solution electricity in corresponding electrolyte solution between working electrode and reference electrode
Resistance is also connected in parallel, then solution resistance from the R in Fig. 5 becomes R/4 in Fig. 6 between working electrode and reference electrode.It thus can be effective
Reduce the influence of solution resistance.In general, reference electrode setting is more, advantageous to the elimination of solution resistance, for little
System, 4 reference electrodes are enough to eliminate the influence of solution resistance.
It is that multi-channel electrochemical test job electrode and attachment device and electrolytic cell use schematic diagram shown in Fig. 7.Solution
Use for electrochemical tests electrolyte is filled in cup 41, liquid level is close to the lower surface of ring flange 42, installation shown in above-mentioned Fig. 3 a-3c
The assembly 72 of good multi-channel electrochemical test job electrode and attachment device is placed on the ring flange 42 of electrolytic cell.Coating
There is the graphite rod 74 of electrode material to protrude under liquid level of solution, four references are respectively put into four reference electrode preformed holes 43
Electrode 76, solution cup bottom are placed graphite flake to electrode 77 and are drawn to electrode preformed hole 44 by conducting wire, multichannel electricity
Test chemical working electrode, reference electrode are respectively connected to electrochemical workstation to electrode, carry out electro-chemical test.When work,
Polarization current or polarizing voltage are provided by electrochemical workstation, array of working electrodes is applied to by conducting wire, is completed to 100 stones
The sequential scan of inker working cell is tested, feedback response electric signal transmission to electrochemical workstation, completes test.
It is illustrated by taking 100 (10 × 10) graphite rods as an example but it is also possible to be M × N number of graphite in this implementation form
Stick (working electrode), as long as forming above-mentioned electrod-array, M × N is generally less than 200
This implementation form includes M × N(such as 100) array that electrode (working electrode) forms is tested, testing efficiency is high.
Working electrode uses graphite rod, is relatively low cost and easy to reuse.Electrolytic cell can effectively carry multi-channel electrochemical test
Working electrode, and can solve the problems, such as since the excessive caused solution resistance of liquor capacity is excessively high.
Under the objective for the essential characteristic for not departing from the utility model, the utility model can be presented as diversified forms, therefore
Implementation form in the utility model is to be illustrative rather than definitive thereof, since the scope of the utility model is defined by the claims and
It is non-to be limited by specification, and fall in all changes in the full scope of equivalents of the range that claim defines or the range that it is defined
Change is understood to be included in the claims.
Claims (7)
1. a kind of multi-channel electrochemical test job electrode and electrolytic cell corollary apparatus, which is characterized in that have such as flowering structure:
Multi-channel electrochemical test job electrode comprising: the bracket through hole array with M × N, and be embedded in described
Test electrode in through hole；
Attachment device comprising there is the M × N number of hole buckle closure for placing power spring；
Electrolytic cell comprising the support annulus of the multi-channel electrochemical test job electrode is supported, bottom end is placed with to electrode,
Reference electrode preformed hole on the support annulus containing multiple to place multiple reference electrodes, and it is described to electricity to draw
The conducting wire of pole to electrode preformed hole；
One end of the test electrode is coated with electrode material, and the other end connects with the power spring in the attachment device
Touching；
The multi-channel electrochemical test job electrode, reference electrode, to electrode respectively with polarization current or polarizing voltage are provided
Electrochemical workstation be connected to carry out electro-chemical test.
2. multi-channel electrochemical test job electrode according to claim 1 and electrolytic cell corollary apparatus, feature exist
In,
There is positioning groove used for positioning on the bracket of the multi-channel electrochemical test job electrode,
The attachment device has the anchor point that positioning is matched with the positioning groove.
3. multi-channel electrochemical test job electrode according to claim 1 and electrolytic cell corollary apparatus, feature exist
In,
Bracket in the multi-channel electrochemical test job electrode is potsherd, and the test electrode is graphite rod.
4. multi-channel electrochemical test job electrode according to claim 1 and electrolytic cell corollary apparatus, feature exist
In,
The material of the buckle closure in the attachment device is polytetrafluoroethylene (PTFE),
The power spring is connect by conducting wire with the electrochemical workstation.
5. multi-channel electrochemical test job electrode according to claim 1 and electrolytic cell corollary apparatus, feature exist
In,
Described is graphite flake to electrode.
6. multi-channel electrochemical test job electrode according to claim 1 and electrolytic cell corollary apparatus, feature exist
In,
The electrolytic cell material is glass.
7. multi-channel electrochemical test job electrode according to claim 1 and electrolytic cell corollary apparatus, feature exist
In,
M × the N is less than 200.
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| CN201821942031.9U CN209264619U (en) | 2018-11-23 | 2018-11-23 | Multi-channel electrochemical test job electrode and electrolytic cell corollary apparatus |
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| CN201821942031.9U CN209264619U (en) | 2018-11-23 | 2018-11-23 | Multi-channel electrochemical test job electrode and electrolytic cell corollary apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111595913A (en) * | 2020-07-03 | 2020-08-28 | 天津理工大学 | Micro-array porous electrolytic cell |
| CN113092551A (en) * | 2021-04-29 | 2021-07-09 | 中国华能集团清洁能源技术研究院有限公司 | Working electrode with multiple electrodes, combined parallel test system and using method of combined parallel test system |
| CN114689673A (en) * | 2022-03-09 | 2022-07-01 | 浙江科技学院 | Low-cost water body nitrite concentration rapid detection system and method |
-
2018
- 2018-11-23 CN CN201821942031.9U patent/CN209264619U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111595913A (en) * | 2020-07-03 | 2020-08-28 | 天津理工大学 | Micro-array porous electrolytic cell |
| CN111595913B (en) * | 2020-07-03 | 2022-10-11 | 天津理工大学 | Micro-array porous electrolytic cell |
| CN113092551A (en) * | 2021-04-29 | 2021-07-09 | 中国华能集团清洁能源技术研究院有限公司 | Working electrode with multiple electrodes, combined parallel test system and using method of combined parallel test system |
| CN114689673A (en) * | 2022-03-09 | 2022-07-01 | 浙江科技学院 | Low-cost water body nitrite concentration rapid detection system and method |
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