CN115165985A - Electrochemical hydrogen sulfide sensor based on ionic liquid and preparation method thereof - Google Patents
Electrochemical hydrogen sulfide sensor based on ionic liquid and preparation method thereof Download PDFInfo
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- CN115165985A CN115165985A CN202210849575.5A CN202210849575A CN115165985A CN 115165985 A CN115165985 A CN 115165985A CN 202210849575 A CN202210849575 A CN 202210849575A CN 115165985 A CN115165985 A CN 115165985A
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- upper cover
- hydrogen sulfide
- ionic liquid
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- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 229910000037 hydrogen sulfide Inorganic materials 0.000 title claims abstract description 39
- 239000002608 ionic liquid Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 229920000742 Cotton Polymers 0.000 claims abstract description 12
- 238000003860 storage Methods 0.000 claims abstract description 9
- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 210000005069 ears Anatomy 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 239000003792 electrolyte Substances 0.000 claims description 8
- -1 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 6
- 239000011267 electrode slurry Substances 0.000 claims description 6
- CFQCIHVMOFOCGH-UHFFFAOYSA-N platinum ruthenium Chemical compound [Ru].[Pt] CFQCIHVMOFOCGH-UHFFFAOYSA-N 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- IBZJNLWLRUHZIX-UHFFFAOYSA-N 1-ethyl-3-methyl-2h-imidazole Chemical compound CCN1CN(C)C=C1 IBZJNLWLRUHZIX-UHFFFAOYSA-N 0.000 claims description 3
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 claims description 3
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 claims description 3
- 229910000510 noble metal Inorganic materials 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 3
- 229940116411 terpineol Drugs 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000010146 3D printing Methods 0.000 claims description 2
- 238000010923 batch production Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000003487 electrochemical reaction Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 238000012806 monitoring device Methods 0.000 description 3
- 239000011550 stock solution Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
Abstract
The invention discloses an electrochemical hydrogen sulfide sensor based on ionic liquid and a preparation method thereof, wherein the electrochemical hydrogen sulfide sensor comprises an upper cover, a base, an electrode group and a signal collecting line group, the base and the upper cover are buckled to form a cavity, and the electrode group and the signal collecting line group are accommodated in the cavity, wherein the electrode group comprises liquid storage cotton and a planar three-part electrode which are sequentially supported on the base, and the planar three-part electrode is a working electrode, an auxiliary electrode and a reference electrode respectively; the upper cover is provided with an air inlet through hole which penetrates through the upper cover and is aligned with the working electrode; the bottom of the base is provided with a liquid injection through hole penetrating through the bottom of the base, and a first contact pin, a second contact pin and a third contact pin penetrating through the bottom of the base; the signal collecting line group comprises a working electrode lead for connecting the working electrode and the first contact pin, a reference electrode lead for connecting the reference electrode and the second contact pin, and an auxiliary electrode lead for connecting the auxiliary electrode and the third contact pin. Above structural design is simple, can carry out low-cost quick batch production.
Description
Technical Field
The invention belongs to the technical field of electrochemical sensors, and particularly relates to an electrochemical hydrogen sulfide sensor based on ionic liquid and a preparation method thereof.
Background
With the continuous development of electronic technology, the electrochemical hydrogen sulfide sensor based on the ionic liquid has the advantages of no need of heating during working, low power consumption, interference resistance, high sensitivity, good linear characteristic and the like, and is widely applied to related monitoring devices. However, the existing electrochemical hydrogen sulfide sensor based on the ionic liquid has a complex preparation process and high preparation cost, and the low-cost rapid batch production of related monitoring devices is limited to a certain extent, so that the problem of complex preparation process and high preparation cost of the electrochemical hydrogen sulfide sensor based on the ionic liquid is urgently needed to be solved.
Disclosure of Invention
In view of the above defects or improvement needs of the prior art, the present invention provides an electrochemical hydrogen sulfide sensor based on ionic liquid and a preparation method thereof, and aims to provide an electrochemical hydrogen sulfide sensor based on ionic liquid, which has a simple structure and is convenient to manufacture.
In order to achieve the above object, according to one aspect of the present invention, there is provided an electrochemical hydrogen sulfide sensor based on ionic liquid, comprising an upper cover, a base, an electrode set and a signal collecting line set, wherein the base and the upper cover are fastened to form a cavity, the electrode set and the signal collecting line set are accommodated in the cavity, wherein,
the electrode group comprises liquid storage cotton and a planar trisection electrode which are sequentially supported on the base, and the planar trisection electrode is a working electrode, an auxiliary electrode and a reference electrode respectively;
the upper cover is provided with an air inlet through hole which penetrates through the upper cover and is aligned with the working electrode;
the bottom of the base is provided with a liquid injection through hole penetrating through the bottom of the base, and a first contact pin, a second contact pin and a third contact pin penetrating through the bottom of the base;
the signal collecting line group comprises a working electrode lead for connecting the working electrode and the first contact pin, a reference electrode lead for connecting the reference electrode and the second contact pin, and an auxiliary electrode lead for connecting the auxiliary electrode and the third contact pin.
In one embodiment, the inner wall of the base is provided with a sunken sealing ring groove, a sealing ring is placed in the sealing ring groove, and when the upper cover and the base are buckled up and down, the sealing ring is extruded and expanded to enable the side walls of the upper cover and the base to be completely attached without a gap, so that electrolyte leakage is prevented.
In one embodiment, the liquid filling device further comprises a rear cover used for sealing the liquid filling through hole.
In one embodiment, the side surface of the upper cover and the side surface of the base are provided with ears with opposite through holes, and the ears on the base and the ears on the upper cover are sleeved and buckled through screws.
In one embodiment, the top of the upper cover is provided with a groove, and a waterproof and dustproof film is placed in the groove to prevent water vapor and dust from entering the cavity from the air inlet through hole.
In one embodiment, the bottom edge of the upper cover has a chamfer.
In one embodiment, the first pin, the second pin and the third pin are arranged in an equilateral triangle.
In one embodiment, the liquid storage cotton is absorbed with 1 ethyl-3 methyl-imidazole acetate as an electrolyte.
According to another aspect of the invention, a method for preparing an electrochemical hydrogen sulfide sensor based on ionic liquid is provided, which is used for preparing the electrochemical hydrogen sulfide sensor based on ionic liquid, wherein the upper cover and the base are prepared by 3D printing.
In one embodiment, the preparation method of the planar three-split electrode comprises the following steps:
noble metal platinum ruthenium is adopted as a catalyst, and the platinum ruthenium catalyst, polytetrafluoroethylene emulsion and terpineol are mixed to prepare electrode slurry;
and printing the electrode slurry on a polytetrafluoroethylene membrane and drying the polytetrafluoroethylene membrane by using an oven to obtain the planar trisection electrode.
In general, compared with the prior art, the above technical solutions conceived by the present invention can achieve the following beneficial effects:
the application design's electrochemistry hydrogen sulfide sensor based on ionic liquid, it makes plane three fens electrode and the cotton in close contact with of stock solution through upper cover and base lock, and plane three fens electrode passes through the electrode lead and is connected with the contact pin, carries out the output of signal through the contact pin, and makes working electrode, auxiliary electrode and reference electrode be in the coplanar through setting up plane three fens electrode. The structure design is simple, the level is smaller, and low-cost rapid batch production can be carried out.
Drawings
FIG. 1 is a schematic diagram of an exemplary ionic liquid-based electrochemical hydrogen sulfide sensor in an exploded configuration;
FIG. 2 is an axial cross-sectional view of an embodiment of a top cover;
FIG. 3 is an axial cross-sectional view of a base according to one embodiment.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein:
11. an upper cover; 12, a base; 13. a rear cover; 21. chamfering; 22. an air inlet through hole; 23. an upper cover 'ear'; 24. a groove; 31. a seal ring groove; 32. a pin inserting hole; 33. a liquid injection through hole; 34. a second pin; 35. a first pin; 36. a third pin; 37. the base is an ear.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the electrochemical hydrogen sulfide sensor based on the ionic liquid comprises an upper cover 11, an electrode group, a base 12 and a rear cover 13, wherein the electrode group is formed by sequentially overlapping a planar three-electrode 14 and a liquid storage cotton 15, and the planar three-electrode 14 comprises a working electrode 142, an auxiliary electrode 141 and a reference electrode 140. Wherein, upper cover 11 and base 12 pass through the daub and the button head screw suit and each other the lock make plane divide the electrode and stock solution cotton in close contact with, and the lateral wall that upper cover 11 and base 12 enclose the cavity is cylindrical. Specifically, the working electrode 142 is semicircular, the auxiliary electrode 141 and the reference electrode 140 are 1/4 of a sector, and the working electrode 142, the auxiliary electrode 141 and the reference electrode 140 enclose a circle. Referring to fig. 2, which is a schematic axial cross-sectional view of the upper cover, the upper cover 11 has a "T" shape in axial cross-section and includes a pair of "ears" 23 and an air inlet hole 22, wherein the pair of "ears" 23 are disposed at two sides of the top of the upper cover 11, the air inlet hole 22 penetrates through the upper cover 11, and a chamfer 21 is formed at an end of the bottom of the upper cover. Referring to fig. 3, which is an axial cross-sectional view of the base, base 12 includes a gasket groove 31, a fluid filling through hole 33, three pin holes 32, a pair of ears 37, and first, second, and third pins 35, 34, and 36. A pair of "ears" 37 are disposed on either side of the bottom of base 12. The sealing ring groove 31 is arranged on the inner wall of the base, is specifically positioned in the middle position of the inner wall of the base, and when the upper cover and the base are buckled up and down, the sealing ring embedded in the inner wall of the base is extruded and expanded to enable the upper cover and the side wall of the base to be completely attached without gaps, so that the leakage of electrolyte is prevented. And annotate liquid through-hole 33 and run through base bottom 12, first contact pin 35, second contact pin 34 and the arrangement of third contact pin 36 are equilateral triangle, and 3 contact pin pins pass through the signal and collect the group and link to each other with the electrode group, it includes working electrode lead wire, reference electrode lead wire and auxiliary electrode lead wire to collect the group. Specifically, the leads of the working electrode, the reference electrode and the auxiliary electrode are tightly pressed on the surfaces of the corresponding three electrodes by the upper cover, and then the root parts of the leads are firmly welded on the contact pins by means of melting the soldering tin wires by electric soldering irons. When the upper cover 11 and the base 12 are mutually buckled, each lead penetrates the liquid storage cotton to be bent at the minimum degree, so that the liquid storage cotton is not easy to fall off due to external touch, the extrusion force of the upper cover can be controlled by regulating the tightness degree of the screw sleeve, the fracture of the lead with overlarge pressure can be avoided, the working electrode is connected with the working electrode 142 and the first contact pin 35 through the lead of the working electrode, the reference electrode is connected with the reference electrode 140 and the second contact pin 34 through the lead of the reference electrode, and the auxiliary electrode is connected with the auxiliary electrode 141 and the third contact pin 36 through the lead of the auxiliary electrode. Furthermore, since the first pin 35, the second pin 34 and the third pin 36 are fixed in the three pin holes 32 of the base respectively by glue, the pin pins and the lead heads are prevented from being stained with glue, which affects the conductive effect. The back lid 13 is used for sealed notes liquid through-hole, after pouring into electrolyte into the stock solution cotton 15 through annotating liquid through-hole 33, need cover the seal with the back and annotate the liquid through-hole and prevent that electrolyte from revealing. In practical application, the inner part of the liquid injection through hole 33 is usually set to be an inward inclination angle of 2 ° so as to better match with the rear cover 13 to play a role of sealing, and furthermore, the rear cover 13 and the liquid injection through hole 33 are connected through glue.
Further, as shown in fig. 1 and 2, the upper cover 11 further includes a groove 24. The electrochemical hydrogen sulfide sensor based on ionic liquid of the embodiment further comprises a waterproof dustproof pasting film 16, and the waterproof dustproof pasting film 16 is arranged in the groove 24 and used for preventing water vapor and dust from entering the cavity of the electrochemical hydrogen sulfide sensor based on ionic liquid from the air inlet through hole 22.
The electrochemical hydrogen sulfide sensor based on the ionic liquid has the characteristic of small structure, and can be simply applied to various types of complete machines in a direct insertion connection mode or designed into a multi-gas detection complete machine instrument with small size. The electrochemical hydrogen sulfide sensor based on the ionic liquid has the advantages that the connection relation among all parts is simple, and the manufacturing efficiency is high to a certain extent.
In practical applications, the electrochemical hydrogen sulfide sensor based on ionic liquid of this embodiment can be mounted on an external circuit board through a mating connector by using the first pin 35, the second pin 34 and the third pin 36, and the storage cotton 15 of the electrochemical gas sensor of this embodiment is filled with ionic liquid, i.e., 1 ethyl-3 methyl-imidazole acetate.
Detection of target gas H with an ionic liquid-based electrochemical hydrogen sulfide sensor 2 Concentration of S as an example, target gas H 2 S penetrates through the waterproof and dustproof film 16, enters the sensor from the air inlet through hole 22, diffuses in the gas diffusion chamber formed by the air inlet through hole 22 and the working electrode 142, and fully contacts with the working electrode 142. During the period, H contacted to the working electrode 142 2 S is adsorbed by the working electrode 142 and an electrochemical reaction occurs:
H 2 S+2A-→S+2HA+2e-…………………(a)
the electrons released by the reaction on the working electrode are output to an integrated circuit in an external circuit board through a working electrode lead, and then are subjected to relevant processing of the integrated circuit, and the electrons reach an auxiliary electrode through an auxiliary electrode lead, so that the auxiliary electrode obtains electrons and generates another electrochemical reaction:
HA+e-→A-+1/2H 2 …………………(b)
the reference electrode does not participate in the electrochemical reaction, but only provides a reference voltage, and specifically, the reference electrode can be connected with an external circuit board through a reference electrode lead, the external circuit synchronously supplies stable voltage to the reference electrode to enable the reference electrode to obtain the reference voltage, and the working electrode and the reference electrode form a potential control circuit.
Further, as a whole, the reactions (a) and (b) proceed simultaneously under the action of the electrolyte, corresponding to the total reaction inside the sensor:
H 2 S→S+H 2 …………………(c)
because the electrons pass through the integrated circuit in the outer circuit board, corresponding current signals can be detected on the integrated circuit, and the strength of the signals is in a certain proportional relation with the concentration of the hydrogen sulfide, so that the aim of detecting the concentration of the hydrogen sulfide is fulfilled.
In conclusion, the electrochemical hydrogen sulfide sensor based on the ionic liquid of the embodiment has the advantages that the similar cylindrical structure formed by the upper cover, the electrode group and the base is adopted, the defects that in the prior art, the preparation process of the electrochemical hydrogen sulfide sensor based on the ionic liquid is complex and high in preparation cost, and the low-cost rapid batch production of related monitoring devices is limited to a certain extent are overcome, and the purpose of the low-cost rapid batch production of the electrochemical hydrogen sulfide sensor based on the ionic liquid is realized.
Correspondingly, the application also relates to a preparation method of the electrochemical hydrogen sulfide sensor based on the ionic liquid, which is used for preparing the electrochemical hydrogen sulfide sensor based on the ionic liquid; wherein, upper cover and base all adopt 3D to print the preparation.
Further, the preparation method of the planar trisection electrode comprises the following steps:
noble metal platinum ruthenium is used as a catalyst, and the platinum ruthenium catalyst, polytetrafluoroethylene emulsion and terpineol are mixed to prepare electrode slurry; and printing the electrode slurry on a polytetrafluoroethylene membrane and drying by using an oven to obtain the plane three-section electrode. The electrode prepared by the method has good working performance.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An electrochemical hydrogen sulfide sensor based on ionic liquid is characterized by comprising an upper cover, a base, an electrode group and a signal collecting line group, wherein the base and the upper cover are buckled to form a cavity, the electrode group and the signal collecting line group are accommodated in the cavity, wherein,
the electrode group comprises liquid storage cotton and a planar trisection electrode which are sequentially supported on the base, and the planar trisection electrode is a working electrode, an auxiliary electrode and a reference electrode respectively;
the upper cover is provided with an air inlet through hole which penetrates through the upper cover and is aligned with the working electrode;
the bottom of the base is provided with a liquid injection through hole penetrating through the bottom of the base, and a first contact pin, a second contact pin and a third contact pin penetrating through the bottom of the base;
the signal collecting line group comprises a working electrode lead for connecting the working electrode and the first contact pin, a reference electrode lead for connecting the reference electrode and the second contact pin, and an auxiliary electrode lead for connecting the auxiliary electrode and the third contact pin.
2. The ionic liquid based electrochemical hydrogen sulfide sensor of claim 1 wherein the inner wall of the base is provided with a recessed seal groove, a seal ring is placed in the seal groove, and when the upper cover and the base are fastened up and down, the seal ring is squeezed and expanded to make the upper cover and the base side wall completely fit without a gap, thereby preventing electrolyte leakage.
3. The ionic liquid based electrochemical hydrogen sulfide sensor of claim 1 further comprising a back cover for sealing the liquid injection through hole.
4. The ionic liquid-based electrochemical hydrogen sulfide sensor according to claim 1, wherein the side surface of the upper cover and the side surface of the base are provided with ears opposite to each other through the through hole, and the ears on the base and the ears on the upper cover are fastened by screwing.
5. The ionic liquid-based electrochemical hydrogen sulfide sensor of claim 1 wherein the top of the top cover has a recess, and a waterproof and dustproof film is placed in the recess to block water vapor and dust from entering the cavity through the air inlet through hole.
6. The ionic liquid based electrochemical hydrogen sulfide sensor of claim 1 wherein the bottom edge of the upper cover has a chamfer.
7. The ionic liquid based electrochemical hydrogen sulfide sensor of claim 1 wherein the first pin, the second pin and the third pin are arranged in an equilateral triangle.
8. The ionic liquid-based electrochemical hydrogen sulfide sensor of claim 1 wherein 1 ethyl-3 methyl-imidazole acetate is absorbed within the liquid storage cotton as an electrolyte.
9. A method for preparing an electrochemical hydrogen sulfide sensor based on ionic liquid, which is used for preparing the electrochemical hydrogen sulfide sensor based on ionic liquid as claimed in any one of claims 1 to 8, wherein the upper cover and the base are prepared by 3D printing.
10. The method of claim 9, wherein the planar three-split electrode is prepared by a method comprising:
noble metal platinum ruthenium is adopted as a catalyst, and the platinum ruthenium catalyst, polytetrafluoroethylene emulsion and terpineol are mixed to prepare electrode slurry;
and printing the electrode slurry on a polytetrafluoroethylene membrane and drying the polytetrafluoroethylene membrane by using an oven to obtain the planar trisection electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210849575.5A CN115165985A (en) | 2022-07-19 | 2022-07-19 | Electrochemical hydrogen sulfide sensor based on ionic liquid and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210849575.5A CN115165985A (en) | 2022-07-19 | 2022-07-19 | Electrochemical hydrogen sulfide sensor based on ionic liquid and preparation method thereof |
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| CN102109483A (en) * | 2009-12-25 | 2011-06-29 | 郑州炜盛电子科技有限公司 | Electrochemical gas sensor |
| CN106596684A (en) * | 2016-12-01 | 2017-04-26 | 深圳市深安旭传感技术有限公司 | Hydrogen sensor |
| CN107219287A (en) * | 2017-06-28 | 2017-09-29 | 汉威科技集团股份有限公司 | Ionic liquid electrochemical gas sensor |
| CN110726761A (en) * | 2019-11-14 | 2020-01-24 | 郑州炜盛电子科技有限公司 | Electrochemical gas sensor |
| CN210221892U (en) * | 2019-07-18 | 2020-03-31 | 郑州美克盛世电子科技有限公司 | Electrochemical oxygen sensor |
| CN111175362A (en) * | 2020-02-27 | 2020-05-19 | 南京艾伊科技有限公司 | Electrochemical hydrogen sulfide sensor and preparation method thereof |
| CN113030221A (en) * | 2021-04-14 | 2021-06-25 | 武汉理工大学 | Hydrogen sensor and application thereof |
-
2022
- 2022-07-19 CN CN202210849575.5A patent/CN115165985A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109483A (en) * | 2009-12-25 | 2011-06-29 | 郑州炜盛电子科技有限公司 | Electrochemical gas sensor |
| CN106596684A (en) * | 2016-12-01 | 2017-04-26 | 深圳市深安旭传感技术有限公司 | Hydrogen sensor |
| CN107219287A (en) * | 2017-06-28 | 2017-09-29 | 汉威科技集团股份有限公司 | Ionic liquid electrochemical gas sensor |
| CN210221892U (en) * | 2019-07-18 | 2020-03-31 | 郑州美克盛世电子科技有限公司 | Electrochemical oxygen sensor |
| CN110726761A (en) * | 2019-11-14 | 2020-01-24 | 郑州炜盛电子科技有限公司 | Electrochemical gas sensor |
| CN111175362A (en) * | 2020-02-27 | 2020-05-19 | 南京艾伊科技有限公司 | Electrochemical hydrogen sulfide sensor and preparation method thereof |
| CN113030221A (en) * | 2021-04-14 | 2021-06-25 | 武汉理工大学 | Hydrogen sensor and application thereof |
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