CN209745867U - Composite reference electrode - Google Patents
Composite reference electrode Download PDFInfo
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- CN209745867U CN209745867U CN201920158328.4U CN201920158328U CN209745867U CN 209745867 U CN209745867 U CN 209745867U CN 201920158328 U CN201920158328 U CN 201920158328U CN 209745867 U CN209745867 U CN 209745867U
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Abstract
The utility model discloses a compound reference electrode, including wire electrode (6) and body, wire electrode (6) stretch into in the body, the body includes: a graphite tube (1); the pyrolytic boron nitride inner tube (2), the pyrolytic boron nitride inner tube (2) is arranged on the inner side wall of the graphite tube (1); and the pyrolytic boron nitride outer tube (3), wherein the pyrolytic boron nitride outer tube (3) is arranged on the outer side wall of the graphite tube (1). The utility model provides a compound reference electrode stability can be good, long service life.
Description
Technical Field
The utility model relates to an electrochemistry technical field specifically, relates to a compound reference electrode, especially a compound reference electrode for high temperature fluoride fused salt.
Background
The thorium-based molten salt reactor is one of the important fields of future nuclear energy development, and the corrosion problem of materials is the key for restricting the development of the thorium-based molten salt reactor, so that the research on the corrosion of the materials in a high-temperature molten salt environment is very necessary. As for the electrochemical corrosion of metal in high-temperature villiaumite, few domestic and foreign researches are carried out, the domestic existing corrosion means is a high-temperature villiaumite soaking experiment, however, the experiment cannot reveal the interface reaction and the dynamic process of the high-temperature villiaumite corrosion, the villiaumite corrosion of the material is very rapid, a stable passive film cannot be formed, and the interaction between the material and the villiaumite environment cannot be easily clarified through thermodynamic calculation, so that the electrochemical technology is a rapid and effective means for researching the reactivity and the corrosion dynamics of the thorium-based molten salt stack structural material. The corrosion phenomenon of the thorium-based molten salt reactor material is researched by applying an electrochemical technology, and the problem of a good reference electrode is solved firstly.
Solid lanthanum trifluoride is known in the prior art as an electrode diaphragm material, however, LaF3 is easy to dissolve in high-temperature fluorine salt during application, and LaF3 single crystal is easy to have grains after a plurality of experiments, so that the service life is short. It is also known to use graphite as the electrode separator material, with a 30 μm thick coating of pyrolytic boron nitride on the outer wall of the graphite tube. Experiments show that the inner wall of the graphite tube of the reference electrode can be dissolved under the corrosion action of the internal reference solution, so that the performance of the reference solution is deteriorated. Meanwhile, the electrode wire can be in conductive contact with the inner wall of the graphite tube, so that the electrode is unstable when being used for no more than two days. In domestic research, a zirconium oxide doped boron nitride material is used as an electrode tube body, an ion channel is generated in a laser drilling mode at the side part of the tube body, and the diameter of a through hole is 0.05-0.3 mm. However, the internal reference solution of the reference electrode is physically communicated with the external high-temperature villiaumite environment, no diaphragm exists, the substances can be directly exchanged and flow, the electrochemical potential is greatly influenced by the external solution environment such as concentration, impurities, medium migration and temperature fluctuation, and the reliability, nernst characteristic performance and application range of the electrode are uncertain. In addition, some researchers have used graphite materials as the electrode tube and the electrode diaphragm, and a very thin pyrolytic boron nitride coating is grown on the outer wall of the graphite by a deposition method, and the thickness of the coating is 50-100 μm. Researches show that the reference electrode is not suitable for being in contact with the fluoride fused salt at 700 ℃ for too long time, and the coating on the surface of the electrode can fall off after more than 40 hours, so that the potential of the reference electrode fluctuates, and the reference electrode cannot be used as a reference.
Therefore, a reference electrode which has good stability and long service life and is suitable for a high-temperature fluoride molten salt environment needs to be developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a reference electrode of different designs.
the utility model also aims at providing a composite reference electrode for high temperature fluoride fused salt that stability can be good.
The utility model discloses a still another purpose provides a long service life's compound reference electrode for high temperature fluoride fused salt.
it is still another object of the present invention to provide a composite reference electrode for high-temperature fluoride molten salt that is easy and simple to manufacture.
In order to achieve one of the above purposes, the technical solution of the present invention is as follows:
The utility model provides a compound reference electrode, includes wire electrode and body, the wire electrode stretches into in the body, the body includes:
a graphite tube;
the pyrolytic boron nitride inner tube is arranged on the inner side wall of the graphite tube; and
The outer tube of pyrolytic boron nitride, pyrolytic boron nitride outer tube sets up on the lateral wall of graphite pipe.
according to a preferred embodiment of the present invention, the end of the pyrolytic boron nitride inner tube that is away from the wire electrode has an opening, and the end of the pyrolytic boron nitride outer tube that is away from the wire electrode has an opening.
according to a preferred embodiment of the present invention, the wall thickness of the end of the graphite tube opposite to the open end of the graphite tube is smaller than the thickness of the wall of the graphite tube.
According to a preferred embodiment of the present invention, the wall thickness of the pyrolytic boron nitride inner tube is 0.5mm-2mm, and/or the wall thickness of the pyrolytic boron nitride outer tube is 0.5mm-2 mm.
According to a preferred embodiment of the present invention, the composite reference electrode further comprises a connection sleeve, the connection sleeve comprises:
The electrode wire extends into the inner corundum tube and is exposed out of two ends of the inner corundum tube;
the fixed pipe is sleeved on the outer side of the inner corundum pipe; and
The outer corundum tube is sleeved on the outer side of the fixed tube.
According to a preferred embodiment of the invention, the open end of the graphite tube has an inner step, and
The composite reference electrode further comprises a connecting clamping sleeve, the connecting clamping sleeve is sleeved on the outer side of the outer corundum tube, and the connecting clamping sleeve extends into the graphite tube and abuts against the inner step of the graphite tube.
According to the utility model discloses a preferred embodiment, the mouth of pipe of the open end of pyrolytic boron nitride inner tube is level with the step face of the interior step of graphite pipe.
According to a preferred embodiment of the utility model, the outer corundum tube and the connecting clamping sleeve are sealed by inorganic glue; and/or
The connecting clamping sleeve and the graphite pipe are sealed by inorganic glue; and/or
And the inner corundum tube, the fixed tube and the outer corundum tube are sealed by inorganic glue.
According to a preferred embodiment of the present invention, a reference solution is provided in the tube body, and the reference solution is in contact with the graphite tube through an opening of the pyrolytic boron nitride inner tube.
According to a preferred embodiment of the present invention, the diameter of the opening of the pyrolytic boron nitride inner tube is larger than the diameter of the opening of the pyrolytic boron nitride outer tube.
The utility model discloses a structure of reference electrode is different with conventional reference electrode's structure, including the three-layer composite structure of pyrolytic boron nitride inner tube, graphite pipe and pyrolytic boron nitride outer tube, the pyrolytic boron nitride inner tube can effectively prevent the corruption of reference solution to the graphite inner wall to, this embedded pyrolytic boron nitride inner tube has still fundamentally eliminated the possibility that wire electrode and graphite pipe inner wall produced the electrical contact, has improved reference electrode's reliability. The pyrolytic boron nitride outer tube has very excellent high-temperature fluoride salt corrosion resistance, well protects the graphite tube from being corroded by an external fluoride salt environment, and greatly improves the stability of the reference electrode. The openings are formed in the bottoms of the boron nitride inner tube and the boron nitride outer tube, the diaphragm is high-purity graphite in the middle layer and is of an arc-shaped structure, the reference solution in the tubes is concentrated at the top end of the bottom, the isostatic pressing graphite has good high-temperature performance and ion conduction capacity, the aperture size uniformity is high, and the service life of the reference electrode is prolonged. The wire electrode guide pipe adopts an inner corundum pipe and has good electric insulation capacity. The inner corundum tube is sleeved into the outer corundum tube, so that the inner corundum tube is prevented from being damaged or broken. The inner corundum tube and the outer corundum tube are fixed and connected by adopting a stainless steel tube, and the port is sealed by adopting inorganic glue, so that the use reliability of the electrode is ensured. The outer corundum tube and the graphite tube are fixed and sealed by the connecting clamping sleeve, and the end opening is sealed by inorganic glue, so that the sealing structure is simple, easy and firm. Therefore, the reference electrode with the boron nitride/graphite/boron nitride composite structure has excellent high-temperature fluoride molten salt corrosion resistance, good electrode stability and reproducibility, long service life, good electrochemical measurement accuracy, and simple, convenient, firm and reliable overall structure manufacturing.
Drawings
Fig. 1 is a general schematic diagram of a composite reference electrode according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will hereinafter be described in detail with reference to the accompanying drawings, wherein like or similar reference numerals denote like or similar elements. Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.
According to the utility model discloses a general concept provides a compound reference electrode, including wire electrode and body, the wire electrode stretches into in the body, the body includes: a graphite tube; the pyrolytic boron nitride inner tube is arranged on the inner side wall of the graphite tube; and the pyrolytic boron nitride outer tube is arranged on the outer side wall of the graphite tube.
The utility model discloses a concrete structure of compound reference electrode for high temperature fluoride fused salt comprises graphite pipe, electrode inner sleeve pipe, electrode outer tube, electrode diaphragm, electrode wire (preferred nickel silk), alundum pipe, connecting cutting ferrule etc.. As shown in fig. 1, a pyrolytic boron nitride inner tube 2 is embedded in the graphite tube 1, another larger pyrolytic boron nitride outer tube 3 is sleeved outside the graphite tube 1, and the diameter of the pyrolytic boron nitride outer tube 3 is larger than that of the pyrolytic boron nitride inner tube 2. Graphite tube 1 may also be referred to as an ion conducting tube. A reference solution 4 is filled in the pyrolytic boron nitride inner tube 2, the reference solution 4 is in ion conduction with an external high-temperature villiaumite environment through an electrode diaphragm 5 (here, the bottom of the graphite tube 1 is used as the electrode diaphragm 5), an electrode wire 6 is inserted into the reference solution 4, an electrode wire guide tube is an inner corundum tube 7 and plays roles of electrical insulation and sealing protection, and the outer part of the inner corundum tube 7 is sleeved into an outer corundum tube 8 to avoid the inner corundum tube from being damaged or broken. The diameter of the outer corundum tube 8 is larger than that of the inner corundum tube 7, and the inner corundum tube and the outer corundum tube can be called an inner connecting tube and an outer connecting tube respectively. The inner corundum tube and the outer corundum tube are fixedly connected and sealed through a stainless steel fixing tube 9, the graphite tube 1 and the outer corundum tube 8 are fixedly connected and sealed through a connecting clamping sleeve 10, and the sealing port is filled and protected by high-temperature-resistant inorganic glue 11, so that the composite reference electrode for high-temperature fluoride fused salt is formed.
High-purity graphite is preferably used as a tube body material of the reference electrode, the graphite is purified, the impurity content is less than 5ppm, the mark is R6810, and the graphite is isostatic graphite and isotropic. Average grain size 20 μm, porosity 11 Vol.%, average pore size 2.5 μm, air permeability 0.3cm2/s, coefficient of thermal expansion 4.1X 10-6K-1C-1. A graphite rod with the diameter of 14mm and the length of 118.5mm is taken, a drill bit is adopted to punch a pipe body with the length of 118mm and the diameter of 8mm, the bottom end (namely, the end opposite to the open end) of the pipe body is in a circular arc shape, the thickness of the thinnest part is 0.5mm, and an inner step with the width of 1mm is drilled at a position 20mm away from the open end of the pipe body. The purified isostatic pressing graphite material has strong ion conduction capability, good high-temperature stability and strong fluoride molten salt corrosion resistance, is not easy to crack or damage and the like, and improves the service life of the reference electrode.
An inner tube of pyrolytic boron nitride prepared by Chemical Vapor Deposition (CVD) method is sleeved in the graphite tube, the length of the tube is 98mm, the outer diameter is 8mm, the inner diameter is 6mm, and the wall thickness is 1mm, the inner tube of boron nitride is arranged in the graphite tube, the tube opening is just level with the step in the graphite tube, and the width of the inner step is 2 mm. The bottom of the boron nitride inner tube is tightly attached to the inner wall of the bottom of the graphite tube, the diameter of an opening at the bottom end of the boron nitride inner tube is 3mm, and a reference solution can directly contact with the bottom of the graphite tube through the opening. The boron nitride inner tube can effectively prevent the reference solution from corroding the inner wall of the graphite tube, and meanwhile, the possibility that the electrode wire is in electric contact with the inner wall of the graphite tube is avoided, and the reliability of the reference electrode is improved.
Another larger pyrolytic boron nitride outer tube prepared by Chemical Vapor Deposition (CVD) method is sleeved outside the graphite tube, and the pyrolytic boron nitride outer tube has the length of 99.5mm, the inner diameter of 14mm and the wall thickness of 1 mm. The diameter of the bottom opening is 2mm so as to realize ion conduction of the reference electrode, and the bottom adopts a circular arc design to realize close contact with the bottom of the graphite tube. The pyrolytic boron nitride outer tube protects the graphite tube from being corroded by external fluorine salt environment, and greatly improves the stability and the service life of the reference electrode.
The pyrolytic boron nitride inner tube is filled with powdered FLiNaK molten salt, the components of the molten salt are LiF-NaF-KF (42-11.5-46.5 mol%) and NiF2, and the molten salt is liquid under the high-temperature condition. In the bottom area of the boron nitride/graphite/boron nitride composite structure, the opening diameter of the boron nitride inner tube is 3mm, the opening diameter of the boron nitride outer tube is 2mm, and the reference electrode diaphragm is high-purity graphite with the thickness of 0.5mm in the middle, so that ion conduction under the condition of high-temperature fluorine salt is realized. The electrode wire is made of pure nickel wire, the purity is 99.99%, the diameter is 0.6mm, and the length is 600 mm. The nickel wire is sleeved into an inner corundum tube (the inner diameter is 1mm, the outer diameter is 2mm, and the length is 500mm), the length of the wire exposed at the bottom is 35mm, and the length of the wire exposed at the top is 65 mm. The bottom of an outer corundum tube (the inner diameter is 4mm, the outer diameter is 6mm, and the length is 450mm) is sleeved into a connecting clamping sleeve (Al2O3 is more than 99 percent, the inner diameter is 6mm, the outer diameter is 10mm, and the length is 27mm), the bottom ends are aligned, and the bottom ends are adhered through high-temperature-resistant inorganic glue. A stainless steel fixed tube (with the inner diameter of 3mm, the outer diameter of 4mm and the length of 96mm) is sleeved on the top of the outer corundum tube, the top ends of the fixed tube and the outer corundum tube are aligned, and the fixed tube and the outer corundum tube are adhered through high-temperature-resistant inorganic glue. The inner corundum tube penetrates through the stainless steel fixing tube and is sleeved into the outer corundum tube, the bottom of the inner corundum tube extends by 80mm (including the nickel wire and the corundum tube), and the inner corundum tube and the outer corundum tube are fixedly connected through the high-temperature-resistant inorganic adhesive. The corundum tube is inserted into the graphite tube, the connecting clamping sleeve is tightly embedded into the upper port part of the graphite tube and is firmly adhered by high-temperature-resistant inorganic glue, the bottom end of the connecting clamping sleeve is in close contact with the top end of the boron nitride inner tube, the distance between the tip end of the nickel wire and the bottom end of the boron nitride inner tube is 18mm, and the assembly of the reference electrode is completed.
It should be noted that, at the lower end of the tube body, no inorganic glue is provided at the joint of the graphite tube 1 at the opening of the pyrolytic boron nitride inner tube 2 and the pyrolytic boron nitride inner tube 2, and correspondingly, no inorganic glue is provided at the joint of the graphite tube 1 at the opening of the pyrolytic boron nitride outer tube 3 and the pyrolytic boron nitride outer tube 3, and the pyrolytic boron nitride inner tube 2 and the pyrolytic boron nitride outer tube 3 are respectively matched with the graphite tube 1 in an accurate shape to realize tight combination.
Therefore, the utility model provides a compound reference electrode for high temperature fluoride fused salt, it chooses for use isotropic high-purity graphite material, and the upper end opening has the step near the port, and the bottom is convex sealed design. The pyrolytic boron nitride inner tube prepared by a chemical vapor deposition method is sleeved in the graphite tube and used for containing a reference electrolyte, and the boron nitride tube has excellent high-temperature fluorine salt corrosion resistance and effectively prevents the reference solution from corroding the inner wall of the graphite. The outside of graphite pipe sets up a great pyrolysis boron nitride outer tube, and the bottom adopts convex design, and this boron nitride outer tube protection graphite pipe outside pipe wall does not receive the corruption of outside high temperature villiaumite environment, greatly improves reference electrode's stability and life. The boron nitride inner tube was filled with a mixed reference solution of FLiNaK and NiF 2. The diaphragm of the reference electrode for realizing ion conduction is a limited region of which the bottom end of the graphite tube is in a circular arc shape, the isostatic pressing graphite has isotropy, good high-temperature performance and high purity, and has certain aperture size and air permeability, and the reference solution is limited at the top position of the bottom, so that the ion conduction of the bottom region is realized. The electrode wire is made of pure nickel wire, and the electrode wire guide pipe is an inner corundum pipe, so that the effects of fixing the nickel wire, sealing and insulating protection are achieved. The inner corundum tube is sleeved into the outer corundum tube, so that the inner corundum tube is fixed and protected, and breakage and damage are prevented. A stainless steel fixing tube is adopted to fix and connect the inner corundum tube and the outer corundum tube, and the port is sealed by inorganic glue. And the step position at the upper end of the graphite tube is fixed and connected with the external corundum tube and the graphite tube by adopting an alumina connecting clamping sleeve, and the port of the external corundum tube is sealed by adopting inorganic glue.
The utility model discloses following beneficial effect has: the tube body and the diaphragm material of the reference electrode comprise isostatic pressing graphite, and have high purity, strong ion conduction capability, good aperture size stability and better corrosion resistance in a high-temperature fluorine salt environment. The pyrolytic boron nitride inner tube is embedded in the graphite tube and is manufactured by adopting a Chemical Vapor Deposition (CVD) method, pyrolytic boron nitride can effectively prevent the reference solution from corroding the inner wall of the graphite tube, and the embedded pyrolytic boron nitride inner tube also fundamentally eliminates the possibility that the electrode wire is in electric contact with the inner wall of the graphite tube and improves the reliability of the reference electrode. The innovation of the reference electrode is that: the pyrolytic boron nitride outer tube is sleeved outside the graphite tube, the pyrolytic boron nitride has very good high-temperature fluorine salt corrosion resistance, the graphite tube is well protected from being corroded by an external fluorine salt environment, and the stability of the reference electrode is greatly improved. The reference electrode solution is a mixed reference solution of FLiNaK and NiF2, a pure nickel wire is used as an electrode wire, a Ni/Ni2+ redox pair presents a better Nernst response relation, and the electrode potential is only related to the ion concentration and is not influenced by the environment, so that the potential measurement of the reference electrode has higher accuracy. The reference electrode diaphragm is located the bottom region of boron nitride/graphite/boron nitride composite construction, and the bottom of boron nitride inner tube and boron nitride outer tube all has a little opening, and the diaphragm is the high-purity graphite in intermediate level, is convex structure, and intraductal reference solution concentrates on the most advanced position in bottom, and isostatic pressing graphite has good high temperature performance and ion conduction ability, and the aperture size degree of consistency is high, has improved reference electrode's life. The wire electrode guide pipe adopts an inner corundum pipe and has good electric insulation capacity. The inner corundum tube is sleeved into the outer corundum tube, so that the inner corundum tube is prevented from being damaged or broken. The inner corundum tube and the outer corundum tube are fixed and connected by adopting a stainless steel tube, and the port is sealed by adopting inorganic glue, so that the use reliability of the electrode is ensured. The outer corundum tube and the graphite tube are fixed and sealed by an alumina connecting clamping sleeve, and the port is sealed by inorganic glue, so that the sealing structure is simple, easy and firm. Therefore, the reference electrode with the boron nitride/graphite/boron nitride composite structure has excellent high-temperature fluoride molten salt corrosion resistance, good electrode stability and reproducibility, long service life, good electrochemical measurement accuracy, and simple, convenient, firm and reliable overall structure manufacturing.
The composite reference electrode of the utility model is applied to a LiF-NaF-KF (42-11.5-46.5 mol%) molten salt system with the temperature of 790 ℃. 168 hours of experimental measurement shows that the electrochemical potential offset is stably kept within +/-3 mV, the surface of the reference electrode is smooth and has no corrosion, and the matching degree of the Nerns characteristic energy experimental value and the theoretical value of the reference electrode is 99.993%.
The utility model discloses a compound reference electrode for high temperature fluoride fused salt has characteristics such as the accuracy is good, stability height, has better using value in electrochemical measurement, corruption, material preparation and the relevant field that use high temperature fluoride salt (temperature >600 ℃) as the medium.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention.
List of reference numerals:
1-graphite tube
2-pyrolytic boron nitride inner tube
3-pyrolytic boron nitride outer tube
4-reference electrode solution
5-electrode separator
6-electrode wire
7-internal corundum tube
8-external corundum tube
9-fixed tube
10-connecting cutting ferrule
11-inorganic glue.
Claims (10)
1. The utility model provides a compound reference electrode, includes wire electrode (6) and body, wire electrode (6) stretch into the body, its characterized in that: the body includes:
a graphite tube (1);
The pyrolytic boron nitride inner tube (2), the pyrolytic boron nitride inner tube (2) is arranged on the inner side wall of the graphite tube (1); and
the outer tube (3) of pyrolytic boron nitride, pyrolytic boron nitride outer tube (3) sets up on the lateral wall of graphite pipe (1).
2. The composite reference electrode of claim 1, wherein: the end, far away from the electrode wire (6), of the pyrolytic boron nitride inner tube (2) is provided with an opening, and the end, far away from the electrode wire (6), of the pyrolytic boron nitride outer tube (3) is provided with an opening.
3. the composite reference electrode of claim 2, wherein: the wall thickness of one end of the graphite tube (1) opposite to the open end of the graphite tube (1) is smaller than that of the tube wall of the graphite tube (1).
4. The composite reference electrode of claim 2, wherein: the wall thickness of the pyrolytic boron nitride inner tube (2) is 0.5mm-2mm, and/or the wall thickness of the pyrolytic boron nitride outer tube (3) is 0.5mm-2 mm.
5. the composite reference electrode of claim 2, wherein: the composite reference electrode further comprises a connection sleeve, the connection sleeve comprising:
The electrode wire (6) extends into the inner corundum tube (7) and is exposed out of two ends of the inner corundum tube (7);
The fixed pipe (9), the said fixed pipe (9) is set up in the outside of the inner corundum tube (7); and
The outer corundum tube (8), the outer corundum tube (8) is sleeved on the outer side of the fixed tube (9).
6. The composite reference electrode of claim 5, wherein: the open end of the graphite tube (1) has an inner step, and
The composite reference electrode further comprises a connecting clamping sleeve (10), the outer side of the outer corundum tube (8) is sleeved with the connecting clamping sleeve (10), and the connecting clamping sleeve (10) extends into the graphite tube (1) and abuts against the inner step of the graphite tube (1).
7. The composite reference electrode of claim 6, wherein: and the opening of the open end of the pyrolytic boron nitride inner tube (2) is flush with the step surface of the inner step of the graphite tube (1).
8. The composite reference electrode of claim 6, wherein: the outer corundum tube (8) and the connecting clamping sleeve (10) are sealed by inorganic glue (11); and/or
The connecting clamping sleeve (10) and the graphite tube (1) are sealed by inorganic glue (11); and/or
The inner corundum tube (7), the fixed tube (9) and the outer corundum tube (8) are sealed by inorganic glue (11).
9. The composite reference electrode of claim 2, wherein: and a reference solution (4) is arranged in the tube body, and the reference solution (4) is contacted with the graphite tube (1) through an opening of the pyrolytic boron nitride inner tube (2).
10. the composite reference electrode of claim 2, wherein: the diameter of the opening of the pyrolytic boron nitride inner tube (2) is larger than that of the pyrolytic boron nitride outer tube (3).
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| CN201920158328.4U CN209745867U (en) | 2019-01-30 | 2019-01-30 | Composite reference electrode |
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| CN201920158328.4U CN209745867U (en) | 2019-01-30 | 2019-01-30 | Composite reference electrode |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU216389U1 (en) * | 2022-11-23 | 2023-02-01 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") | Dynamic reference electrode for measuring redox potential in molten salt LiF-NaF-KF |
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2019
- 2019-01-30 CN CN201920158328.4U patent/CN209745867U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU216389U1 (en) * | 2022-11-23 | 2023-02-01 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") | Dynamic reference electrode for measuring redox potential in molten salt LiF-NaF-KF |
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