CN2453440Y - High temp. reference electrode - Google Patents
High temp. reference electrode Download PDFInfo
- Publication number
- CN2453440Y CN2453440Y CN 00261943 CN00261943U CN2453440Y CN 2453440 Y CN2453440 Y CN 2453440Y CN 00261943 CN00261943 CN 00261943 CN 00261943 U CN00261943 U CN 00261943U CN 2453440 Y CN2453440 Y CN 2453440Y
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Abstract
The utility model relates to a high-temperature reference electrode, comprising an electrode main cavity body and an electrode inner core which is positioned in the electrode main cavity body, wherein, inner solution is poured in the electrode main cavity body. The utility model is characterized in that the electrode inner core comprises two parts: a silver-silver chloride electrode and a glass cavity body which contains the electrode; the lower bottom of the glass cavity body is a compact porous ceramic piece; a leading-out wire of the electrode is positioned in a glass sleeve pipe which is led out through the electrode main cavity body and a central hole of an electrode cap of the upper end of the main cavity body; the lower end of the electrode main cavity body is provided with an electrode base; an inner cavity of the base is connected with an electrode film bulkhead in the screw seal method; the bulkhead is provided with a central through-hole; the plane of the lower end of the bulkhead tightly presses a porous membrane on the inner bottom surface of the electrode base; the bottom surface of the electrode base is provided with a through-hole.
Description
The utility model relates to the contrast electrode of electrochemical measurement, particularly a kind ofly is used for the high temperature contrast electrode that potential method carries out electrochemical measurement.
When carrying out electrochemical measurement with potential method, must use a contrast electrode, the effect of contrast electrode is, keeps constant potential in electrochemical gaging, and can be used as the current potential of indicator electrode or working electrode is observed, measured or controls.In potential method was measured, well behaved contrast electrode was an essential condition in the battery design.
The utility model is in order to adapt to the needs of system electrochemical gagings such as high temperature, burn into high pressure, easy incrustation, the high temperature contrast electrode that provides, structure, shape such as solution and electrode inner core all done new design in electrode chamber, cavity, makes it to satisfy requirements such as current potential is stable, the life-span is long, sturdy and durable.
The utility model is realized as follows: similar with existing electrode, solution in the electrode inner core of packing in the electrode main cavity reaches, its key is that the electrode inner core comprises that two parts constitute: silver-silver chloride electrode and hold the glass chamber of this electrode, going to the bottom of this glass chamber is dense porous potsherd, it and glass chamber are sintered into one, seal behind the injecting electrode inner core solution in the glass chamber, the extension line of electrode places in the glass bushing, glass bushing is drawn through the electrode cap center pit of electrode main cavity and main cavity upper end, in the glass bushing and glass bushing is outer and the center pit of electrode cap between the space all inject fluid sealant, electrode cap connects with electrode main cavity movable sealing, be provided with electrodes base in electrode main cavity lower end, the base intracavity thread seal connects an electrode film plug, plug is provided with central through hole, transverse plane presses porous membrane on the electrodes base inner bottom surface under the plug, and electrodes base has through hole on the bottom surface, and the base external thread connects with electrode main cavity lower end movable sealing.The interior solution that injects in the electrode main cavity is saturated potassium chloride solution and a small amount of solid potassium chloride that potassium chloride, the pure organic reagent of analysis and water mix, that injects in the core glass chamber in the electrode adds a small amount of potassium chloride and silver chloride solid for above-mentioned saturated potassium chloride solution, and core glass chamber solution is all filled with cavity in electrode master chamber and the electrode.Placing the electrode outlet line in the glass bushing is platinum filament and Dumet wire, and platinum filament one end is connected with filamentary silver and is sintered in the glass bushing, and the platinum filament other end connects Dumet wire, and the center pit that passes on the electrode cap is drawn.Perforated membrane in the electrodes base is that high-molecular organic material is made, and is placed to the multi-disc stack, and electrode main cavity, electrode cap, electrodes base, electrode film plug are macromolecular materials such as nylon or poly-tetrafluoro alkene.
Drawings and Examples.
Fig. 1 is the utility model electrode structural chart.
The shape and size of contrast electrode cavity can change according to concrete determination object.Fig. 1 is a kind of shape commonly used.Among the figure, on the electrode main cavity made from PEC or teflon or phenolics compress 1, thread connection is equipped with the electrode cap 2 of electrode inner core.The electrode inner core comprises filamentary silver 3, holds the glass chamber 4 of filamentary silver, and its end is a porous ceramics piece 5.Filamentary silver 3 adds Dumet wire 7 to the section of drawing on top for platinum filament 6, and the section of drawing part places in the glass bushing 11 (can insulate and corrosion-resistant).Wherein platinum filament 6 is because of close with the expansion coefficient of glass, with glass pipe box 11 sintering.Glass bushing passes together with the center pit of electrode outlet line on electrode cap 2, fills with the colloid sealing in the glass bushing 11.Electrode film plug 10 upper ends can be provided with and be screwed into groove, and plug 10 is screwed in the base 8, simultaneously electrode diaphragm 9 are compacted on the base inner bottom surface.Electrode diaphragm is made with macromolecular material, the multi-disc stack, and every thickness is decided with experience as required.Pack into and again base 8 screw threads are screwed into the lower end of electrode main cavity 1 behind the electrode diaphragm.
The making step of this electrode is as follows:
1. the making of electrode inner core: the Dumet wire that cut-off directly is about the 0.3mm suitable length is connected with the method for a bit of (be about and be 6mm) platinum filament (diameter is 0.3-0.5mm) with short circuit spot welding.Other gets one section diameter is 0.4-1.0mm, and length is the filamentary silver about 15cm, successively cleans with ethanol, weak aqua ammonia and distilled water respectively.Equally, the method with short circuit spot welding is connected filamentary silver with the other end of platinum filament.But filamentary silver coiled.A tinsel that above-mentioned welding is good and a diameter are the dense porous potsherd 5 and glass chamber 11 sintering about 5mm.Wherein the joint of filamentary silver and platinum filament should be sintered in the glass tube 11.Be soaked in the HCl solution that concentration is 0.1mol/L after the electrode core body made cleaned, and make in the glass chamber 4 of its underpart and be full of HCl solution.With the Ag silk is anode, is negative electrode with a platinum filament, carries out " chlorination " with direct current.Regulation voltage, making anodic current density is about the 1mA/ square centimeter, or platinum cathode begins to occur bubble." chlorination " about 10 hours after, the Ag-AgCl electrode of making was placed rare HCl 1-2 days, make it aging.In order to make the stable Ag-AgCl electrode of current potential, should use the purity height, and ganoid filamentary silver and highly purified HCl and distilled water.After system finishes the solution in the glass cavity 4 is outwelled, and clean with distilled water flushing.
2. the preparation of solution in the electrode: get 500 grams and analyze water that pure KCl, 1000ml analyze pure organic reagent and certain volume in the beaker of suitable volume, stir, heating, make the KCl saturated solution, the cooling back is standby.With syringe above-mentioned solution is full of the glass chamber 4 of electrode cores, and adds a small amount of AgCl and KCl solid.Then the outlet on this cavity is sealed with 705 glue earlier, seal with 504 glue again.(noting: must not leave any space in this glass chamber).
3. the assembling of electrode: be to be full of 504 glue in the glass-tube 11 (electrode cable fairlead) of 3mm with the electrode cores upper diameter, and it is passed electrode cap.Electrode outlet line is passed the hole at electrode cap center, and will be full of 504 glue in this hole, electrode cores and electrode cap are fixed.The screw thread place is coated with full 504 glue around will having the electrode cap of electrode cores, and screws with the screw thread of electrode main cavity upper end immediately, places 24 hours, treats 504 adhesive curings.
High-molecular porous film is cut into the garden shape sheet that diameter is 14.5mm, immerses in the electrode of above-mentioned preparation behind the solution, take out eight perforated membranes and keep flat in the electrodes base successively.On diaphragm plug and screw thread that electrodes base revolves mutually, coat 704 glue, use " word opens " that the diaphragm plug is screwed in the base immediately, screw, diaphragm is compressed, placed one day, treat 704 adhesive curings with electrodes base.With being full of solution in the electrode (not staying air gap) in the hole of syringe with the plug center, stand-by.
The electrode main cavity is inverted, is added KCl solid about 10 grams in the main cavity of contrast electrode, and inject the above-mentioned interior solution for preparing near the screw thread of main cavity wall.Screw thread place around the electrodes base that has perforated membrane coats 705 glue, and screws with the screw thread of main cavity end immediately, places two days, treats 705 adhesive curings.Mounted electrode chamber planted agent does not leave air gap.
The electrode for preparing is time spent not for a long time, should be at its terminal cover one plastic cap.
The utility model electrode has high temperature resistant, corrosion-resistant, withstand voltage, liquid network part non-scaling, not stifled Plug, the advantage such as liquid junction potential is little and stable is specially adapted to high temperature, and corrosivity is strong, easily fouling, sticking Electrochemical gaging in thick, the non-aqueous media.
Claims (5)
1. high temperature contrast electrode, comprise the electrode main cavity and place the interior electrode inner core of electrode main cavity, be marked with interior solution in the electrode main cavity, it is characterized in that the electrode inner core comprises that two parts constitute: silver-silver chloride electrode and hold the glass chamber of this electrode, going to the bottom of this glass chamber is dense porous potsherd, it and glass chamber are sintered into one, seal behind the injecting electrode inner core solution in the glass chamber, the extension line of electrode places in the glass bushing, glass bushing is drawn through the electrode cap center pit of electrode main cavity and main cavity upper end, in the glass bushing and glass bushing is outer and the center pit of electrode cap between the space all inject fluid sealant, electrode cap connects with electrode main cavity movable sealing, be provided with electrodes base in electrode main cavity lower end, the base intracavity thread seal connects an electrode film plug, and plug is provided with central through hole, and transverse plane presses porous membrane on the electrodes base inner bottom surface under the plug, electrodes base has through hole on the bottom surface, and the base external thread connects with electrode main cavity lower end movable sealing.
2. high temperature contrast electrode according to claim 1, it is characterized in that the interior solution that injects in the electrode main cavity is saturated potassium chloride solution and a small amount of solid potassium chloride that potassium chloride, the pure organic reagent of analysis and water mix, that injects in the core glass chamber in the electrode adds a small amount of potassium chloride and silver chloride solid for above-mentioned saturated potassium chloride solution, and core glass chamber solution is all filled with cavity in electrode master chamber and the electrode.
3. high temperature contrast electrode according to claim 1 and 2, it is characterized in that placing the electrode outlet line in the glass bushing is platinum filament and Dumet wire, platinum filament one end is connected with filamentary silver and is sintered in the glass bushing, and the platinum filament other end connects Dumet wire, and the center pit that passes on the electrode cap is drawn.
4. high temperature contrast electrode according to claim 3, it is characterized in that the perforated membrane in the electrodes base is that high-molecular organic material is made, be placed to the multi-disc stack, electrode main cavity, electrode cap, electrodes base, electrode film plug are macromolecular materials such as nylon or poly-tetrafluoro alkene.
5. high temperature contrast electrode according to claim 1 and 2, it is characterized in that the perforated membrane in the electrodes base is that high-molecular organic material is made, be placed to the multi-disc stack, electrode main cavity, electrode cap, electrodes base, electrode film plug are macromolecular materials such as nylon or poly-tetrafluoro alkene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00261943 CN2453440Y (en) | 2000-12-15 | 2000-12-15 | High temp. reference electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00261943 CN2453440Y (en) | 2000-12-15 | 2000-12-15 | High temp. reference electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2453440Y true CN2453440Y (en) | 2001-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00261943 Expired - Fee Related CN2453440Y (en) | 2000-12-15 | 2000-12-15 | High temp. reference electrode |
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| Country | Link |
|---|---|
| CN (1) | CN2453440Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636531A (en) * | 2012-04-10 | 2012-08-15 | 中国科学技术大学 | Electrochemical pool, electrochemical interface device, as well as reference electrode and preparation method thereof |
| CN101498680B (en) * | 2008-02-02 | 2013-03-20 | 财团法人工业技术研究院 | Reference electrode |
| CN103364466A (en) * | 2012-03-26 | 2013-10-23 | 株式会社堀场制作所 | A reference electrode and an electrochemical measuring apparatus |
| CN104931412A (en) * | 2015-06-30 | 2015-09-23 | 天津大学 | Semisolid reference electrode used for metal soil corrosion electrochemical system |
| CN105043970A (en) * | 2015-06-30 | 2015-11-11 | 天津大学 | Metal corrosion electrochemical experiment device used in soil medium |
| CN105092673A (en) * | 2014-05-04 | 2015-11-25 | 苏州久润能源科技有限公司 | Double-salt-bridge reference electrode used for analyzing valence in Fe-Cr redox flow battery |
| CN105891097A (en) * | 2016-05-26 | 2016-08-24 | 天津大学 | Sensor for measuring corrosion of outer wall of metal tube |
| CN107436283A (en) * | 2016-05-26 | 2017-12-05 | 天津大学 | A kind of method for detecting metal pipe line outer wall corrosion |
| CN107843632A (en) * | 2017-10-25 | 2018-03-27 | 三峡大学 | A kind of solid-state phosphate anion selection electrode based on tungsten filament, preparation method and application |
| CN108139277A (en) * | 2015-09-18 | 2018-06-08 | 株式会社电装 | Temperature sensor |
| CN111257389A (en) * | 2020-03-16 | 2020-06-09 | 昆明理工大学 | High-voltage reference electrode, preparation method and application |
-
2000
- 2000-12-15 CN CN 00261943 patent/CN2453440Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498680B (en) * | 2008-02-02 | 2013-03-20 | 财团法人工业技术研究院 | Reference electrode |
| CN103364466A (en) * | 2012-03-26 | 2013-10-23 | 株式会社堀场制作所 | A reference electrode and an electrochemical measuring apparatus |
| CN102636531A (en) * | 2012-04-10 | 2012-08-15 | 中国科学技术大学 | Electrochemical pool, electrochemical interface device, as well as reference electrode and preparation method thereof |
| CN102636531B (en) * | 2012-04-10 | 2014-07-30 | 中国科学技术大学 | Electrochemical pool, electrochemical interface device, as well as reference electrode and preparation method thereof |
| CN105092673A (en) * | 2014-05-04 | 2015-11-25 | 苏州久润能源科技有限公司 | Double-salt-bridge reference electrode used for analyzing valence in Fe-Cr redox flow battery |
| CN105043970A (en) * | 2015-06-30 | 2015-11-11 | 天津大学 | Metal corrosion electrochemical experiment device used in soil medium |
| CN104931412A (en) * | 2015-06-30 | 2015-09-23 | 天津大学 | Semisolid reference electrode used for metal soil corrosion electrochemical system |
| CN108139277A (en) * | 2015-09-18 | 2018-06-08 | 株式会社电装 | Temperature sensor |
| CN108139277B (en) * | 2015-09-18 | 2020-05-19 | 株式会社电装 | Temperature sensor |
| CN105891097A (en) * | 2016-05-26 | 2016-08-24 | 天津大学 | Sensor for measuring corrosion of outer wall of metal tube |
| CN107436283A (en) * | 2016-05-26 | 2017-12-05 | 天津大学 | A kind of method for detecting metal pipe line outer wall corrosion |
| CN105891097B (en) * | 2016-05-26 | 2019-04-23 | 天津大学 | It is a kind of for measuring the sensor of metal tube outer wall corrosion |
| CN107436283B (en) * | 2016-05-26 | 2019-05-21 | 天津大学 | A method of detection metal pipe line outer wall corrosion |
| CN107843632A (en) * | 2017-10-25 | 2018-03-27 | 三峡大学 | A kind of solid-state phosphate anion selection electrode based on tungsten filament, preparation method and application |
| CN111257389A (en) * | 2020-03-16 | 2020-06-09 | 昆明理工大学 | High-voltage reference electrode, preparation method and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |