CN207351953U - Solid Electrolyte Oxygen Sensor based on sodium superionic conductors layer - Google Patents
Solid Electrolyte Oxygen Sensor based on sodium superionic conductors layer Download PDFInfo
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- CN207351953U CN207351953U CN201721203078.9U CN201721203078U CN207351953U CN 207351953 U CN207351953 U CN 207351953U CN 201721203078 U CN201721203078 U CN 201721203078U CN 207351953 U CN207351953 U CN 207351953U
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- superionic conductors
- conductors layer
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- solid electrolyte
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Abstract
The utility model provides a kind of Solid Electrolyte Oxygen Sensor based on sodium superionic conductors layer, it includes sensitive core body, the sensitive core body includes substrate, sodium superionic conductors layer, working electrode, to electrode, ruthenium heater and two heating electrodes, the sodium superionic conductors layer, the working electrode and the upper surface for being located at the substrate to electrode, the working electrode is connected electrode by the sodium superionic conductors layer with described, the ruthenium heater and two heating electrodes are located at the lower surface of the substrate, two heating electrodes are connected by the ruthenium heater, oxygen-sensitive material is coated with the working electrode, the lambda sensor has simple in structure, it is of low cost, long lifespan, the advantages of safety and environmental protection.The lambda sensor has the advantages that of simple structure and low cost, long lifespan, safety and environmental protection.
Description
Technical field
A kind of gas sensor is the utility model is related to, specifically, being related to a kind of solid based on sodium superionic conductors layer
Electrolyte oxygen sensor.
Background technology
Either in the various aspects such as industry, agricultural, the energy, traffic medical treatment, ecological environment, still in daily life,
Oxygen is to need to control with measuring most chemical elements.Though traditional oximetry methods such as gas chromatography, magnetic oxygen analyzer etc.
So can accurately analyze the concentration of oxygen, but its is of high cost, device is complicated, use and repair it is all cumbersome, in some needs
In situ, on-line measurement occasion is using can be very limited, therefore oxygen sensor is widely used in oil, chemical industry, coal, smelting
The industries such as gold, papermaking, fire-fighting, municipal administration, medicine, automobile, gas emission monitoring.Oxygen sensor currently on the market mainly just like
Lower three types：Zirconia solid electrolyte type oxygen sensor, room temperature electrochemistry type oxygen sensor, fluorescent type oxygen sensor
Device.
Wherein, the lambda sensor of zirconia solid electrolyte type, service life is long, operating temperature range is broad, vibration resistance
The advantages that with impact, be mainly used in the detection of oxygen concentration in automobile industry, but its complex manufacturing technology, industry monopoly
By force；Room temperature electrochemistry type oxygen sensor, cathode are the PTFE film for scribbling active catalyst, and anode is lead, is filled in sensor
Full liquid electrolyte solution, in electrochemical reaction, anode is participated in oxidation reaction, once available lead is completely by oxygen
Change, sensor stops operating, and service life is usually 1~2 year, also be easy to cause environmental pollution；Fluorescent type oxygen sensor, base
The accurate detection of oxygen is realized by the efficiency that oxygen molecule is quenched in the fluorescence that core sensitive material is sent, there is safety collar
The advantages of guarantor, strong antijamming capability, long service life, but its is complicated, and signal takes out trouble, expensive.Therefore, study
A kind of of simple structure and low cost, long lifespan, the oxygen sensor of safety and environmental protection have important practical significance.
Utility model content
The purpose of this utility model is in view of the deficiencies of the prior art, so as to provide a kind of based on sodium superionic conductors layer
Solid electrolyte oxygen sensor.
To achieve these goals, technical solution is used by the utility model：
A kind of Solid Electrolyte Oxygen Sensor based on sodium superionic conductors layer, it includes sensitive core body, the sensitivity core
Body include substrate, sodium superionic conductors layer, working electrode, to electrode, ruthenium heater and two heating electrodes, the sodium super-ionic
Conductor layer, the working electrode and the upper surface for being located at the substrate to electrode, the working electrode and described to electrode
It is connected by the sodium superionic conductors layer, the ruthenium heater and two following tables for heating electrodes and being located at the substrate
Face, two heating electrodes are connected by the ruthenium heater, and oxygen-sensitive material is coated with the working electrode.
Based on above-mentioned, the oxygen-sensitive material is tellurium dioxide, chrome green, nickel oxide or cadmium oxide.
Based on above-mentioned, the substrate is alumina ceramic substrate.
Based on above-mentioned, the both ends of the sodium superionic conductors layer are respectively equipped with upside gold ribbon, the working electrode and described
Electrode is located on the upside gold ribbon respectively, the both ends of the ruthenium heater are respectively equipped with downside gold ribbon, two heating
Electrode is respectively on the downside gold ribbon.
Based on the above-mentioned Solid Electrolyte Oxygen Sensor based on sodium superionic conductors layer, it further include tube socket and with the pipe
The pipe cap that matches of seat, the tube socket are equipped with four pipe pins, and two described to heat electrodes, the working electrode and described to electricity
Pole is welded with four pipe pins respectively, wherein, it is two heating electrodes, the working electrode, described to electrode and four
The pipe pin corresponds welding.
Based on above-mentioned, sorbing material is equipped with the pipe cap, the sorbing material is activated carbon, molecular sieve or porous sial
Stone.
A kind of preparation method of the above-mentioned Solid Electrolyte Oxygen Sensor based on sodium superionic conductors layer, including following step
Suddenly：
Preparation work electrode and sodium superionic conductors and gold ribbon are printed in the upper surface of the substrate to electrode, sinter shape
Into the sodium superionic conductors layer and two upside gold ribbons, recycle gold paste that two platinum filaments are glued respectively to two upsides
On gold ribbon, sintering forms two test electrodes, coats oxygen-sensitive material on a test electrode wherein, then carries out heat
Processing forms the working electrode, another described test electrode is described to electrode；
Prepare two heating electrodes and layer of ruthenium and gold ribbon are printed in the lower surface of the substrate, sintering forms the ruthenium heater
With two downside gold ribbons；Recycle gold paste that two platinum filaments are glued respectively on two downside gold ribbons, sintering forms two
The heating electrode.
Based on the preparation method of the above-mentioned Solid Electrolyte Oxygen Sensor based on sodium superionic conductors layer, it further includes step
Suddenly：
The working electrode, the heating electrode described to electrode and two are put be welded in tube socket respectively by assembly sensor
On four pipe pins, cover the pipe cap and be packaged to obtain the solid electrolyte oxygen sensing based on sodium superionic conductors layer
Device.
Based on above-mentioned, the step of the preparation work electrode in, sintering temperature is 800~1100 DEG C, carries out heat treatment shape
Temperature into the working electrode is 500~600 DEG C.
Based in the step of above-mentioned, electrode is heated in the preparation, sintering temperature is 800~900 DEG C.
Compared with prior art, the utility model has substantive distinguishing features and progress.Specifically, the utility model provides
A kind of Solid Electrolyte Oxygen Sensor based on sodium superionic conductors layer, in the sensitive chip in the lambda sensor using sodium surpass from
Sub- conductor layer avoids evaporation and the leakage problem of liquid electrolyte solution as solid electrolyte, makes the stability of sensor
It is greatly improved with the service life；Meanwhile the sensor uses the electrochemical operation principle of redox reaction, working electrode applies
The semiconductor oxide materials to oxygen sensitive are covered, when the oxygen concentration monitored changes, the valency of conductor oxidate
State will change, so that with the flowing to generating electronics between electrode, solve room temperature electrochemistry type oxygen sensor institute
Using the environmental issue and lead consumption problem of lead-type material, avoid polluting environment；Meanwhile the sensor also has structure
Simply, easy to make, the advantages of cost is low.
Brief description of the drawings
Fig. 1 is the structure diagram of sensitive core body described in the utility model.
Fig. 2 is that the vertical view of the Solid Electrolyte Oxygen Sensor based on sodium superionic conductors layer described in the utility model is shown
It is intended to.
In figure：1. substrate；2. sodium superionic conductors layer；3. working electrode；4. pair electrode；5. ruthenium heater；6. heating electricity
Pole；7. upside gold ribbon；8. downside gold ribbon；9. tube socket；10. pipe pin；11. sensitive core body.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
As shown in Fig. 2, the present embodiment provides a kind of Solid Electrolyte Oxygen Sensor based on sodium superionic conductors layer, it is wrapped
Tube socket 9, the sensitive core body 11 being fixed on the tube socket 9, the pipe cap to match with the tube socket 9 are included, as shown in Figure 1, described
Sensitive core body include substrate 1, be arranged at the substrate 1 upper surface sodium superionic conductors layer 2, be arranged at the substrate 1
The ruthenium heater 5 of lower surface, respectively the heating electrode 6 positioned at the both ends of the ruthenium heater 5, be arranged at the sodium super-ionic and lead
The working electrode 3 on the surface of body layer 2 and to electrode 4, oxygen-sensitive material is coated with the working electrode 3；The working electrode 3
It is connected with described to electrode 4 by the sodium superionic conductors layer 2, two heating electrodes 6 pass through the ruthenium heater 5
Connection.
Further, the oxygen-sensitive material is tellurium dioxide, and the oxygen-sensitive material can be selected in other examples
Chrome green, nickel oxide or cadmium oxide.
Further, the alumina ceramic substrate that the substrate 1 is 1 mm*2 mm*0.25 mm is, it is necessary to illustrate, at it
The substrate of other sizes can be selected in his embodiment as needed.
Further, the both ends of the sodium superionic conductors layer 2 are respectively equipped with upside gold ribbon 7, the both sides of the ruthenium heater 5
It is respectively equipped with downside gold ribbon 8, two heating electrodes 6 are respectively on the downside gold ribbon 8, the working electrode 3 and described right
Electrode 4 is located at upside gold ribbon 7 respectively.
Further, two it is described heating electrodes 6, the working electrode 3 and it is described to electrode 4 respectively with the tube socket 9
Four pipe pins 10 weld.
Further, active carbon adsorption material is equipped with the pipe cap, the sorbing material is optional in other examples
With molecular sieve or porous cimita.
The preparation method of the lambda sensor comprises the following steps：
Preparation work electrode and to electrode the substrate upper surface print sodium superionic conductors, at 1000~1100 DEG C
6 H-shapeds are sintered into the sodium superionic conductors layer, gold ribbon are printed at the both ends of the sodium superionic conductors layer and 800~900
DEG C sintering 10~20min sinter to be formed two upside gold ribbons, recycle gold paste by two platinum filaments be glued respectively to two upside gold
Take, 10~20min is sintered at 800~900 DEG C and forms two test electrodes, coat oxygen on a test electrode wherein
Sensitive material, then carries out 1 H-shaped of heat treatment into the working electrode for 500~600 DEG C, another described test electrode is described
To electrode；
Prepare heating electrode and print gold ribbon, two gold of the lower surface of the substrate at the both ends of the lower surface of the substrate
Layer of ruthenium is printed between band, 10~20min is sintered at 800~900 DEG C and forms the ruthenium heater and two downside gold ribbons；Recycle
Gold paste bonds two platinum filaments on two downside gold ribbons respectively, sinters described in 10~20min formation two and adds at 800~900 DEG C
Thermode；
The working electrode, the heating electrode described to electrode and two are put be welded in the pipe respectively by assembly sensor
On four pipe pins of seat, cover the pipe cap and be packaged to obtain the solid electrolyte oxygen biography based on sodium superionic conductors layer
Sensor.
Finally it should be noted that:Above example is only illustrating the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：It can still modify to specific embodiment of the present utility model or some technical characteristics are equally replaced
Change；Without departing from the spirit of technical solutions of the utility model, it should all cover in the claimed technical solution of the utility model
Among scope.
Claims (6)
1. a kind of Solid Electrolyte Oxygen Sensor based on sodium superionic conductors layer, it includes sensitive core body, it is characterised in that institute
State sensitive core body include substrate, sodium superionic conductors layer, working electrode, to electrode, ruthenium heater and two heating electrodes, it is described
Sodium superionic conductors layer, the working electrode and the upper surface for being located at the substrate to electrode, the working electrode and institute
State and be connected to electrode by the sodium superionic conductors layer, the ruthenium heater and two heating electrodes are located at the lining
The lower surface at bottom, two heating electrodes are connected by the ruthenium heater, and aerobic sensitive material is coated on the working electrode
Material.
2. the Solid Electrolyte Oxygen Sensor according to claim 1 based on sodium superionic conductors layer, it is characterised in that institute
It is tellurium dioxide, chrome green, nickel oxide or cadmium oxide to state oxygen-sensitive material.
3. the Solid Electrolyte Oxygen Sensor according to claim 1 or 2 based on sodium superionic conductors layer, its feature exist
In the substrate is alumina ceramic substrate.
4. the Solid Electrolyte Oxygen Sensor according to claim 1 or 2 based on sodium superionic conductors layer, its feature exist
Upside gold ribbon is respectively equipped with the both ends of, the sodium superionic conductors layer, the working electrode and described electrode is located at respectively
On the upside gold ribbon, the both ends of the ruthenium heater are respectively equipped with downside gold ribbon, and two heating electrodes are located at institute respectively
State on the gold ribbon of downside.
5. the Solid Electrolyte Oxygen Sensor according to claim 4 based on sodium superionic conductors layer, it is characterised in that it
Tube socket and the pipe cap to match with the tube socket are further included, the tube socket is equipped with four pipe pins, two the heating electrodes, institutes
State working electrode and described electrode is welded with four pipe pins respectively.
6. the Solid Electrolyte Oxygen Sensor according to claim 5 based on sodium superionic conductors layer, it is characterised in that institute
State in pipe cap and be equipped with sorbing material, the sorbing material is activated carbon, molecular sieve or porous cimita.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721203078.9U CN207351953U (en) | 2017-09-20 | 2017-09-20 | Solid Electrolyte Oxygen Sensor based on sodium superionic conductors layer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721203078.9U CN207351953U (en) | 2017-09-20 | 2017-09-20 | Solid Electrolyte Oxygen Sensor based on sodium superionic conductors layer |
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| CN207351953U true CN207351953U (en) | 2018-05-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561141A (en) * | 2017-09-20 | 2018-01-09 | 郑州炜盛电子科技有限公司 | Solid Electrolyte Oxygen Sensor based on sodium superionic conductors layer and preparation method thereof |
-
2017
- 2017-09-20 CN CN201721203078.9U patent/CN207351953U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561141A (en) * | 2017-09-20 | 2018-01-09 | 郑州炜盛电子科技有限公司 | Solid Electrolyte Oxygen Sensor based on sodium superionic conductors layer and preparation method thereof |
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