CN1789996A - Ring-disk electrode body - Google Patents
Ring-disk electrode body Download PDFInfo
- Publication number
- CN1789996A CN1789996A CN 200410066006 CN200410066006A CN1789996A CN 1789996 A CN1789996 A CN 1789996A CN 200410066006 CN200410066006 CN 200410066006 CN 200410066006 A CN200410066006 A CN 200410066006A CN 1789996 A CN1789996 A CN 1789996A
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- Prior art keywords
- ring
- electrode
- disc
- export bar
- electrode body
- Prior art date
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Links
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 230000001681 protective effect Effects 0.000 claims abstract description 9
- 239000000523 sample Substances 0.000 claims abstract description 9
- 239000012790 adhesive layer Substances 0.000 claims abstract description 3
- 238000000605 extraction Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000840 electrochemical analysis Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 239000002861 polymer material Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000003411 electrode reaction Methods 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000007806 chemical reaction intermediate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
A ring-disk electrode body belongs to the field of measuring electrodes for electrochemical analysis and is characterized in that a ring electrode and a disk electrode are coaxially arranged, the two bottom surfaces are coplanar, and an insulating ring and an adhesive layer made of high polymer materials are arranged between the ring electrode and the disk electrode; the ring electrode is embedded into the end part of the ring connecting body, and the ring connecting body is in threaded connection with the ring leading-out rod and is provided with a guide matching surface; the top surface of the disc electrode is closely contacted with a probe arranged in an inner hole at the lower end of the disc guide-out rod; the ring and the disc guide-out rod are coaxial, are clamped with an insulating sleeve and are compressed together by a nut; the lower part of the electrode body is provided with a protective cover and a sealing ring. The invention is used for measuring the diffusion coefficient and electrochemical parameters of a solution system, the insulation resistance between the ring and disk electrodes is large, the contact resistance in a signal leading-out system is small, the whole coaxiality is high, the radial jump is less than 0.05mm during rotation, the current noise is small, so the test effect is good, the measurement head is convenient to replace, the application range is wide, the external solution is not easy to enter the inside of the electrode body, the corrosion is avoided, and the service life is long.
Description
Technical field
The present invention relates to a kind of electrochemical analysis potential electrode, particularly the ring-disc electrode body that constitutes by ring electrode, disc electrode and electrode signal extraction system.
Background technology
In electrochemical analysis system, electrode is as the coefficient of diffusion of measuring solution system and the important survey instrument of electrochemical parameter.Though the kind of electrode is a lot, reaches tens thousand of kinds, but still can not be satisfied with the mechanism of action of research electrode process and the intermediate product of electrode reaction.Utilize fluid mechanics principle, the rotating ring-disk electrode of inquiring into the electrochemical behavior of electrode reaction is a kind of effective means of the complicated electrochemical reaction of research, detection reaction intermediate.At present, have the import of multiple model or homemade swivel eye dish-electrode using, its structure mostly is: one, the plastic jacket of insulation system employing activity is separated by between ring export bar and the dish export bar; Two, the dish export bar is connected with the main employing spring of electrically contacting of disc electrode; Three, ring electrode directly links to each other with the ring export bar, the outer unprotect cover of electrode.The major defect of bringing thus is: one, plastic jacket and ring, dish export bar are gapped, can cause axial float, thus influence ring with coil between insulating property, also cause the right alignment of electrode overproof; Two, spring is longer, and circumferential infinite place can produce torsional vibration and cause the resistance that electrically contacts of disc electrode to strengthen and the resistance instability in the rotation, increase current noise; Three, the electrode measurement head part is changed inconvenience, has limited the electrode usable range, and extraneous solution enters electrode interior easily, produces corrosion, influences usability and serviceable life.
Summary of the invention
The technical problem to be solved in the present invention is to overcome weak point of the prior art, good insulation preformance between a kind of electrode is provided, and contact resistance is little in the signal extraction system, electrode body right alignment height, and measuring head is changed convenient, the ring-disc electrode body that electrode life is long.
Technical scheme of the present invention is; the ring-disc electrode body; comprise ring electrode; disc electrode and electrode signal extraction system; improvements are as ring; the annulus of disc electrode; the disc centre line is coaxial; its bottom surface is in same plane; dead ring and adhesive layer are arranged between the two; described electrode signal extraction system comprises the ring export bar; the dish export bar; ring union body and probe; the ring export bar is threaded with the ring union body; between the two and the guiding mating surface arranged; ring electrode embeds the end of ring union body; probe is located in the endoporus of dish export bar lower end, and end of probe and disc electrode end face compress, and afterbody has compression spring; between ring export bar and the dish export bar insulation sleeve that compresses is arranged, the electrode body bottom is provided with protective cover.
Further scheme is that described dish export bar lower end has external thread and set nut; There is O-ring seal at protective cover upper port place and compresses block; Dead ring between ring electrode, the disc electrode exceeds the disc electrode end face.
Adopt technique scheme, as ring, the annulus of disc electrode, the coaxial setting of disk, the dead ring of macromolecular material is arranged between the two, and connect with macromolecule adhesive, insulation resistance value also has certain perviousness greater than 15M Ω; Its bottom surface (workplace) coplane perpendicular to rotation, is parallel to liquid level.In electrode body when rotation,, the liquid phase of being close to electrode face is set up thickness homogeneous relevant with rotating speed, stable diffusion layer, guarantees the accuracy of testing.Isolate with the insulation sleeve of teflon between ring export bar and the dish export bar, do not have the gap each other, and the three is compressed, eliminate axial float, guarantee insulativity and right alignment between two export bars with the nut of dish export bar lower end.Ring electrode is connected with the ring export bar by union body, the ring union body is threaded with the ring export bar, and the guiding mating surface arranged, electrode measurement is changed conveniently first watch, to adapt to the test request of different solutions, can guarantee the right alignment after electrode body is assembled on the other hand again, make the diameter run-out of electrode body when high low speed rotation less than 0.05mm, thereby the reduction current noise improves the test effect.The dish export bar is by being contained in the pressured spring compression that contracts of thimble in its lower end endoporus at the end face of disc electrode, compresses reliably, and contact resistance is little, can not produce resistance fluctuation and current noise.The bottom of electrode body is provided with the protective cover of acid and alkali-resistance, and the protective cover port is provided with O-ring seal and compresses block in addition, makes extraneous solution can not infiltrate inside, avoids the part corrosion, increases the service life.Dead ring between ring, disc electrode exceeds the disc electrode end face, can guarantee further that interelectrode insulation is reliable.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Embodiment
Consult accompanying drawing,, dead ring 11 is arranged between the two as the annulus 12 of ring electrode and disk 13 coaxial settings as disc electrode, and bonding with macromolecule glue, and dead ring exceeds the disk end face.The bottom surface of annulus, disk (workplace) is in same plane.Annulus embeds the end of ring union body 8, and the ring connected body is threaded with ring export bar 3, and guiding mating surface 14 is arranged, and cooperates face length 10mm, becomes no gap to cooperate.The disk end face closely contacts with probe 7, and probe is contained in the dish export bar 1 lower end endoporus, and afterbody is established compression spring 10.The ring export bar is coaxial with the dish export bar, and friction tight insulation sleeve 2 is arranged between the two, and by being located at the nut 6 that coils the export bar lower end it is compressed jointly.The electrode body bottom is provided with and encircles the acid and alkali-resistance protective cover 9 that union body is threaded, and there is O-ring seals 5 at protective cover upper port place and tightly is enclosed within the plastics of ring on the export bar and compresses block 4.
Claims (4)
1; a kind of ring; the disc electrode body; comprise ring electrode; disc electrode and electrode signal extraction system; it is characterized in that annulus as ring-disc electrode; the disc centre line is coaxial; its bottom surface is in same plane; dead ring and adhesive layer are arranged between the two; described electrode signal extraction system comprises the ring export bar; the dish export bar; ring union body and probe; the ring export bar is threaded with the ring union body; between the two and the guiding mating surface arranged; ring electrode embeds the end of ring union body; probe fills in the endoporus of dish export bar lower end; end of probe and disc electrode end face compress; afterbody has compression spring, between ring export bar and the dish export bar insulation sleeve that compresses is arranged, and the electrode body bottom is provided with protective cover.
2, ring-disc electrode body according to claim 1 is characterized in that there are external thread and set nut in described dish export bar lower end.
3, ring-disc electrode body according to claim 1 is characterized in that there is O-ring seal at protective cover upper port place and compresses block.
4, ring-disc electrode body according to claim 1 is characterized in that the dead ring between ring electrode, the disc electrode exceeds the disc electrode end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410066006 CN1789996A (en) | 2004-12-13 | 2004-12-13 | Ring-disk electrode body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410066006 CN1789996A (en) | 2004-12-13 | 2004-12-13 | Ring-disk electrode body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1789996A true CN1789996A (en) | 2006-06-21 |
Family
ID=36787997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410066006 Pending CN1789996A (en) | 2004-12-13 | 2004-12-13 | Ring-disk electrode body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1789996A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100533135C (en) * | 2006-12-29 | 2009-08-26 | 中国科学院长春应用化学研究所 | Rotary point-disk electrode |
| CN100557433C (en) * | 2007-08-03 | 2009-11-04 | 厦门大学 | A kind of preparation method of nanometer ring-disc electrode |
| CN102539497A (en) * | 2010-12-09 | 2012-07-04 | 中国科学院金属研究所 | Variable-diameter rotating ring electrode |
| CN102539502A (en) * | 2010-12-17 | 2012-07-04 | 江苏江分电分析仪器有限公司 | Rotating cup-disk electrode |
| CN103743798A (en) * | 2013-12-12 | 2014-04-23 | 香港应用科技研究院有限公司 | Device and method for quick evaluation of performance of electroplating method for micropore filling |
| CN104015482A (en) * | 2013-02-28 | 2014-09-03 | 富士胶片株式会社 | Passivation of ring electrodes |
| CN108169302A (en) * | 2017-11-20 | 2018-06-15 | 深圳大学 | A kind of three-electrode system and its application method |
-
2004
- 2004-12-13 CN CN 200410066006 patent/CN1789996A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100533135C (en) * | 2006-12-29 | 2009-08-26 | 中国科学院长春应用化学研究所 | Rotary point-disk electrode |
| CN100557433C (en) * | 2007-08-03 | 2009-11-04 | 厦门大学 | A kind of preparation method of nanometer ring-disc electrode |
| CN102539497A (en) * | 2010-12-09 | 2012-07-04 | 中国科学院金属研究所 | Variable-diameter rotating ring electrode |
| CN102539497B (en) * | 2010-12-09 | 2014-03-05 | 中国科学院金属研究所 | Variable-diameter rotating ring electrode |
| CN102539502A (en) * | 2010-12-17 | 2012-07-04 | 江苏江分电分析仪器有限公司 | Rotating cup-disk electrode |
| CN104015482A (en) * | 2013-02-28 | 2014-09-03 | 富士胶片株式会社 | Passivation of ring electrodes |
| CN104015482B (en) * | 2013-02-28 | 2017-04-12 | 富士胶片株式会社 | Passivation of ring electrodes |
| CN103743798A (en) * | 2013-12-12 | 2014-04-23 | 香港应用科技研究院有限公司 | Device and method for quick evaluation of performance of electroplating method for micropore filling |
| CN103743798B (en) * | 2013-12-12 | 2015-11-25 | 香港应用科技研究院有限公司 | The rapid evaluation micropore filling apparatus and method of plating performance formula |
| CN108169302A (en) * | 2017-11-20 | 2018-06-15 | 深圳大学 | A kind of three-electrode system and its application method |
| CN108169302B (en) * | 2017-11-20 | 2020-05-12 | 深圳大学 | Three-electrode system and using method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |