CN106950275A - With Co1‑xZnxFe2O4Acetone sensor for sensitive electrode material and preparation method thereof - Google Patents
With Co1‑xZnxFe2O4Acetone sensor for sensitive electrode material and preparation method thereof Download PDFInfo
- Publication number
- CN106950275A CN106950275A CN201710234999.XA CN201710234999A CN106950275A CN 106950275 A CN106950275 A CN 106950275A CN 201710234999 A CN201710234999 A CN 201710234999A CN 106950275 A CN106950275 A CN 106950275A
- Authority
- CN
- China
- Prior art keywords
- sensitive electrode
- ysz
- electrode
- sensor
- sensitive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G01N27/416—Systems
- G01N27/417—Systems using cells, i.e. more than one cell and probes with solid electrolytes
- G01N27/419—Measuring voltages or currents with a combination of oxygen pumping cells and oxygen concentration cells
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
One kind is with Co1‑xZnxFe2O4(0.3≤x≤0.7) is acetone sensor of sensitive electrode material and preparation method thereof, belongs to gas sensor technical field.The sensor is mainly used in the detection of atmospheric environment and diabetes, successively by the Al with Pt heating electrodes2O3Ceramic wafer, YSZ substrates, Pt reference electrodes and Co1‑xZnxFe2O4Sensitive electrode is constituted；Reference electrode and sensitive electrode are separate and symmetrically prepare at the two ends of YSZ upper surface of base plate, YSZ base lower surfaces and the Al that electrode is heated with Pt2O3Ceramic wafer is bonded together.The present invention utilizes the Co with high electrochemical catalytic activity using YSZ as ion conductive layer1‑xZnxFe2O4Composite oxide material is sensitive electrode, changes the microscopic appearance of sensitive electrode layer by changing the ratio of cobalt and zinc, reaches the purpose of the sensitivity for improving sensor and lowest detection lower limit.
Description
Technical field
The invention belongs to gas sensor technical field, and in particular to one kind is with Co1-xZnxFe2O4(0.3≤x≤0.7) is
The YSZ bases of sensitive electrode material blend together electric potential type acetone (acetone) sensor and preparation method thereof, and it is mainly used in big compression ring
Border and the detection of diabetes.
Background technology
Acetone, also known as dimethyl ketone, are simplest saturated ketone.It is a kind of colourless transparent liquid, there is special pungent gas
Taste is important organic synthesis raw material.Suction acetone can cause serious adverse reaction to trigger poisoning, and acute poisoning can be right
Nervous centralis plays anesthetic effect, so as to the symptom such as weak, dizzy, nauseous, emotional occur.Vomiting, spasm can occur for severe one, very
To going into a coma, suction for a long time can cause pharyngitis, bronchitis etc..The prolonged and repeated contact of skin can cause dermatitis.So, in public field
Detected high concentration acetone is very important.At the same time, with the improvement of people ' s living standards, diabetic and day are all
Increase, and clinical medicine show diabetic exhale in content of acetone more than 1.8ppm, far above the 0.3- of normal person
0.9ppm.Therefore, by the detection of content of acetone in the expiration to suspected patient, non-invasive diagnosis can effectively be carried out.If
Instrument portability and in real time monitoring can be realized, the prevention and diagnosis of diabetes is beneficial to.
At present, the acetone of detection low concentration relies primarily on large-sized analytic instrument, the method such as makings connection spectrum and spectrum, so
And its volume is big, price is high, it is impossible to limit its application on diabetes diagnosis the shortcomings of detection in real time.And gas sensor
It is low with price, manufacture craft is simple, sensitivity is high, available for real-time detection the advantages of, can apply and build portable third
Ketone detector.Therefore current study hotspot is become.
Gas sensor type extensively, and blendes together Copper diethlydithiocarbamate based on solid electrolyte and sensitive oxide electrode
In addition to, response high with sensitivity recovers fast, good selective, typical solid electrolyte --- stabilizing zirconia (YSZ)
Have detection range wide with sensitive oxide electrode material, good heat endurance, chemical stability, and the advantages of moisture-proof,
Therefore the acetone sensor being made up of the two has potential significant application value in atmosphere pollution and diabetes monitoring field.
The sensitive mechanism that stabilizing zirconia base blendes together electric potential type acetone sensor is：Acetone passes through sensitive electrode layer in atmosphere
Spread to three-phase reaction interface, due to react (1) in diffusion process, the concentration of acetone can be reduced gradually, and oxide is quick
The porous of sense electrode determines the reduction degree of acetone concentration.At the three phase boundary of gas/sensitive electrode/YSZ conductive layers, together
The electrochemical reducting reaction of Shi Fasheng oxygen and the electrochemical oxidation reactions of acetone, reaction (2) and (3) constitute a local cell,
When both reaction rates are equal, reaction reaches balance, is formed on sensitive electrode and blendes together current potential, the current potential of it and reference electrode
The poor detection signal as sensor.Detection signal magnitude is determined by electrochemical reaction (2) and the speed of (3), and reacts speed
Rate depend on sensitive electrode material electrochemistry and chemical catalysis activity, electrode material microstructure (porous of such as material,
Granularity,
Pattern etc.).
Reaction equation is as follows：
C3H6O+4O2→3CO2+3H2O (1)
1/4C3H6O+2O2-→3/4CO2+3/4H2O+4e- (2)
O2+4e-→2O2- (3)
The content of the invention
It is an object of the invention to provide one kind with ferrite Co1-xZnxFe2O4(0.3≤x≤0.7) is the YSZ of sensitive electrode
Base blendes together electric potential type gas sensor and preparation method thereof, to improve lowest detection lower limit, moisture resistance and the sensitivity of sensor
Etc. sensitivity characteristic.Promote this sensor in the practical of the field such as industrial production and diabetes diagnosis.Sensor of the invention
In addition to Monitoring lower-cut is relatively low, also with high sensitivity, good moisture resistance and stability.
Acetone sensor involved in the present invention is to be based on solid electrolyte YSZ and high electrochemical catalytic performance Co1- xZnxFe2O4(0.3≤x≤0.7) composite oxide material is the novel acetone sensor constructed by sensitive electrode, with YSZ (ZrO2
(8%Y2O3, mass fraction)) it is used as ion conductive layer.
YSZ bases of the present invention blend together electric potential type acetone sensor, as shown in figure 1, successively by heating electrode with Pt
Al2O3Ceramic wafer, YSZ substrates, Pt reference electrodes and Co1-xZnxFe2O4Sensitive electrode is constituted；Reference electrode and sensitive electrode that
This is discrete and symmetrically prepares at the two ends of YSZ upper surface of base plate, YSZ base lower surfaces and the Al that electrode is heated with Pt2O3Pottery
Porcelain plate is bonded together；And Co1-xZnxFe2O4Sensitive electrode material is prepared by the following method：
Cobalt nitrate, zinc nitrate and ferric nitrate are weighed respectively in the ratio of element cobalt, zinc and iron, and the molar ratio of three is 1-
x：x：2, wherein 0.3≤x≤0.7, and be individually positioned in 3 beakers, appropriate deionized water is added, is stirred 0.5~1 small
When, make three kinds of salt completely soluble；Cobalt nitrate and zinc nitrate solution are added dropwise in iron nitrate solution, water-bath at 50 DEG C~60 DEG C
Stirring 20~40 minutes, is allowed to be sufficiently mixed uniformly；Bath temperature is improved to 80 DEG C~90 DEG C, citric acid is weighed and adds above-mentioned
In mixed solution, wherein citric acid and whole metal ion (Co2+、Fe3+、Zn2+Sum) mol ratio be 0.5~2：1,80
DEG C~90 DEG C at stir to gel；Obtained gel is dried 24~48 hours at 85~95 DEG C and obtains xerogel；It will obtain
Xerogel sintered under the conditions of 700 DEG C~900 DEG C and obtain Co1-xZnxFe2O4Sensitive electrode material.
The preparation process of acetone sensor of the present invention is as follows：
(1) reference electrode (Pt electrodes) is made：One end of YSZ upper surface of base plate after ultrasonic cleaning makes 15~30 μm
Thick pt reference electrodes, the centre that reference electrode is bonded at after the Pt silk doublings for choosing 1~3cm length is contact conductor, then
YSZ substrates are toasted 0.5~2 hour under the conditions of 110~130 DEG C, then sintered 20~40 minutes at 850~950 DEG C, are removed
The impurity such as the terpinol in platinum slurry；
(2) Co is made1-xZnxFe2O4Sensitive electrode：By obtained Co1-xZnxFe2O4Sensitive electrode material deionized water
Slurry is tuned into, mass concentration is between 1%~20%；With obtained slurry in the symmetrical of YSZ upper surface of base plate and reference electrode
Position prepare 20~30 μ m-thicks sensitive electrode, will be equally bonded at after the platinum filament doubling of 1~3cm length on sensitive electrode as
Contact conductor；
(3) the YSZ substrates of above-mentioned preparation are sintered into 1~3 hour at 700~900 DEG C；Heating rate be 1~3 DEG C/
Min, makes sensitive electrode be secured firmly on YSZ substrates；
(4) inorganic bond is prepared：Measure waterglass (Na2SiO3·9H2O) 2~4mL, and weigh Al2O3Powder 0.7~
1.0g, by waterglass and Al2O3Powder is mixed and stirred for uniformly, inorganic bond needed for being made；
(5) YSZ base lower surfaces are heated to the Al of electrode with carrying Pt using the inorganic bond of above-mentioned preparation2O3Ceramics
Plate is bonded together；
Wherein, the Al of electrode is heated with Pt2O3Ceramic wafer is in Al2O3Obtained on ceramic wafer by silk-screen printing Pt, band
There is Pt to heat the Al of electrode2O3Ceramic wafer is together used as the heating plate of device；
(6) device bonded is toasted 30~60 minutes under the conditions of 100 DEG C~120 DEG C, is then welded, sealed
Dress, obtains of the present invention with Co so as to make1-xZnxFe2O4Copper diethlydithiocarbamate is blended together for the YSZ bases of sensitive electrode.
The present invention utilizes the Co with high electrochemical catalytic activity using YSZ as ion conductive layer1-xZnxFe2O4Composite oxygen
Compound material is sensitive electrode, changes the microscopic appearance of sensitive electrode layer by changing the ratio of cobalt and zinc, reaches that raising is quick
Feel the purpose of characteristic.
Advantages of the present invention：
(1) sensor utilizes typical solid electrolyte --- stabilizing zirconia (YSZ), with good heat endurance and
Chemical stability, can detect acetone in harsh environment；
(2) high-performance composite oxide Co is prepared using citric acid complex method1-xZnxFe2O4As sensor sensing electrode,
Preparation method is simple, and cost of material is relatively low, beneficial to the industrialized production of mass.
(3) by changing the ratio of cobalt and zinc, the sensitive electrode layer with different pore passage structures is obtained, so as to optimize sensitivity
The microstructure of electrode, three phase boundary is quickly reached beneficial under test gas and participates in electrochemical reaction, so as to improve the spirit of sensor
Sensitivity and lowest detection lower limit.
Brief description of the drawings
Fig. 1：YSZ bases of the present invention blend together electric potential type acetone sensor structural representation；
Each several part title：Al2O3Ceramic wafer 1, Pt heating electrode 2, inorganic bond 3, YSZ substrates 4, Pt silks 5, Pt references
Electrode 6, Co1-xZnxFe2O4Sensitive electrode 7；
Fig. 2：Different proportion ferrite Co obtained by the present invention1-xZnxFe2O4(x=0,0.3,0.5,0.7,1) sensitive electrical
Pole material XRD spectra (wherein, ordinate is absorption intensity, and abscissa is scanning angle)；
Shown in Fig. 2, the Co of 800 DEG C of sintering1-xZnxFe2O4The XRD spectra of material, by being contrasted with standard spectrogram, five kinds are not
Material in proportion is all consistent with standard card JCPDS (File No.73-1963) and without miscellaneous peak, is spinelle crystallographic system.Say
It is bright that we invent Co of the sensitive electrode material of preparation for pure free from admixture1-xZnxFe2O4Material.Wherein ZnFe2O4And CoFe2O4
It is it has been reported that the spinel crossed, the Co that can prove newly to synthesize by contrast1-xZnxFe2O4(0.3≤x≤0.7) is point
Spinel structure.
Fig. 3：The sensitive electrode material of different proportion ((x=0,0.3,0.5,0.7,1)) cobalt ferrite zinc prepared by the present invention
SEM schemes.
It can be seen that the material granule size and duct size of different proportion are differed (by calculating particle
Average value understand, ZnFe2O4Particle size is about 108nm, Co0.3Zn0.7Fe2O4Particle size is about 93nm,
Co0.5Zn0.5Fe2O4Particle size is about 86nm, Co0.7Zn0.3Fe2O4Particle size is about 96nm, CoFe2O4Particle size is about
103nm), it can thus be seen that the microscopic appearance of electrode material can be changed by changing the ratio of cobalt and zinc in ferrite, material it is many
Pass is conducive to the diffusion of gas.
Fig. 4：Utilize the Co in 800 DEG C of sintering1-xZnxFe2O4(x=0,0.3,0.5,0.7and 1) is used as sensitive electrode material
The sensor response log concentration curve of material (wherein, abscissa is the concentration of acetone, and ordinate is potential difference values).
As shown in figure 4,5 kinds of materials all have good response to acetone, sensitivity highest ratio is 1：1, its to 5~
The sensitivity of 100ppm acetone is about -63mV, it can be seen that, cobalt zinc ratio is 1：1, i.e. sensitive electrode material is
Co0.5Zn0.5Fe2O4YSZ bases blend together electric potential type acetone sensor there is highest response.
Fig. 5：Utilize Co0.5Zn0.5Fe2O4It is used as the sensor continuous response recovery curve (note of sensitive electrode material：It is total to sit
Potential difference is designated as, abscissa is the time；Operating temperature is 650 DEG C)
As shown in figure 5, device is 300ppb to the lowest detection lower limit of acetone, response is -2.1mV.In test concentrations
In gradient procedure, baseline is not offset significantly.This sensor shows good response recovery characteristics and sufficiently low inspection
Survey lower limit.
Fig. 6：Utilize Co0.5Zn0.5Fe2O4Log concentration curve is responded as the sensor of sensitive electrode material.
As shown in fig. 6, the Δ V and acetone concentration logarithm of the device are in good linear relationship, according to blending together potential theory,
Its slope is defined as to the sensitivity of sensor, its sensitivity as can be seen here, utilizes Co for -63mV/decade.0.5Zn0.5Fe2O4
There is relatively higher sensitivity as the sensor of sensitive electrode material.
Fig. 7：Utilize the Co sintered at 800 DEG C0.5Zn0.5Fe2O4It is used as the reperformance test of the sensor of sensitive electrode material
Curve.(wherein, abscissa is relative humidity, and ordinate is potential difference values)
As shown in fig. 7, being Co0.5Zn0.5Fe2O4(800℃)Device is extensive to continuous 8 secondary response of 50ppm acetone at 650 DEG C
Multiple, it can be seen that the lower response change of 8 measurements of device is less than 10%, indicating sensor has good repeatability.
Fig. 8：Utilize the Co sintered at 800 DEG C0.5Zn0.5Fe2O4It is used as the humidity influence of the sensor of sensitive electrode material.
(wherein, abscissa is relative humidity, and ordinate is potential difference values)
As shown in figure 8, being Co0.5Zn0.5Fe2O4(800℃)Response of the device under different humidity to 50ppm acetone, from figure
As can be seen that device is in 20~98% humidity range, the response change to 50ppm acetone is less than 7%, indicates sensor
With good moisture-proof.
Embodiment
Embodiment 1：
Co is prepared respectively using sol-gal process1-xZnxFe2O4(x=0,0.3,0.5,0.7and 1) sensitive electrode material
(pressing same process, five devices are prepared using the sensitive material of five kinds of components), sintering temperature is 800 DEG C, uses this material
Make YSZ bases and blend together electric potential type acetone sensor, and test sensor gas-sensitive property, idiographic flow is as follows：
1. make Pt reference electrodes：Using Pt slurries in each 2mm of length and width, one end of thick 0.2mm YSZ upper surface of base plate makes
One layer of length and width 0.5mm*2mm, thick 20 μm Pt reference electrodes, while with being bonded at reference electrode after the Pt silk doublings of a 2cm length
Extraction electrode lead on centre position；Then YSZ substrates are toasted 2 hours under the conditions of 120 DEG C, placed into 950 in Muffle furnace
DEG C sintering half an hour so that exclude platinum slurry in terpinol, be finally down to room temperature.
2. make Co1-xZnxFe2O4(x=0,0.3,0.5,0.7and 1) sensitive electrode：Prepared using sol-gal process
Co1-xZnxFe2O4(x=0,0.3,0.5,0.7and 1) material.Weigh cobalt nitrate, zinc nitrate (two kinds of nitrate in proportion respectively
Molal quantity sum is 4mmol), 8mmol ferric nitrates are weighed, and be dissolved into 20mL deionized waters, half an hour is stirred, by nitric acid
Zinc and cobalt nitrate solution are added drop-wise in iron nitrate solution, add 2.52g citric acids, continue to stir 2 hours at 80 DEG C to solidifying
Glue, obtained gel is dried in 80 DEG C of vacuum drying chambers 24 hours and arrives xerogel, be put into 800 DEG C of sintering 2 in Muffle furnace
Individual hour, obtain Co1-xZnxFe2O4Sensitive electrode material.
3. weigh 5mg Co1-xZnxFe2O4(x=0,0.3,0.5,0.7and 1) powder is slurred with deionized water 2mL
Material, by Co1-xZnxFe2O4Slurry is coated in the relative YSZ substrate other ends of reference electrode, and size is 0.5mm*2mm, 20 μm of thickness, together
Sample after the platinum filament doubling of a 2cm length with being bonded at extraction electrode lead on sensitive electrode.
4. YSZ substrates be warming up to 800 DEG C with 2 DEG C/min heating rate and continue two hours, be then reduced to room
Temperature.
5. use inorganic bond (Al2O3With waterglass Na2SiO3·9H2O, volume is about than 3：1 prepares) by YSZ substrates
Lower surface (without electrode coated side) heats the Al of electrode with same size with Pt2O3Heating plate (2 × 2mm of length and width, thickness
0.2mm) bonded；
6. device welding, encapsulation：The device of the different cobalt zinc molal quantity ratios of correspondence is welded on six foot tubes seat respectively, set
Upper protective cover, YSZ bases blend together electric potential type acetone sensor and completed.
Embodiment 2：
Test with the Co of 800 DEG C of sintering1-xZnxFe2O4(x=0,0.3,0.5,0.7and 1) is sensitive electrode material
YSZ bases blend together the sensitivity characteristic of electric potential type acetone sensor.
Sensor is connected on Rigol signal testers, the sensor that five kinds of Different electrodes materials are made is placed in
Voltage signal test is carried out in 5ppm acetone, 10ppm acetone, 20ppm acetone, 50ppm acetone, 100ppm acetones.
Table 1 is listed the YSZ bases made respectively using five kinds of materials as electrode material and blendes together Copper diethlydithiocarbamate different dense
The electrical potential difference spent in acetone.As can be seen from the table, the ratio for working as x=0.5, i.e. cobalt and zinc is 1:When 1, device is to acetone
Response it is maximum.Table two list respectively by sensor be placed in air, 0.3ppm acetone, 0.5ppm acetone, 1ppm acetone,
Electric potential signal in 2ppm acetone, 5ppm acetone, 10ppm acetone, 20ppm acetone, 50ppm acetone, 100ppm acetones is surveyed
Examination, the sensitivity that the sensor can be obtained by blending together potential theory is -63mV/decade, it can be seen that, by changing cobalt
The electrochemical catalysis activity of sensitive electrode material can be influenceed with the ratio of zinc, so as to improve the performance of sensor, is had
Highly sensitive YSZ bases blend together electric potential type acetone sensor.
Table 1：With Co1-xZnxFe2O4(x=0,0.3,0.5,0.7and 1)(800℃)For the sensor of sensitive electrode material
Δ V with acetone concentration delta data
Table 2：With Co0.5Zn0.5Fe2O4(800℃)For sensitive electrode material sensor to the response data of various concentrations acetone
Claims (5)
1. one kind is with Co1-xZnxFe2O4For the acetone sensor of sensitive electrode material, it is characterised in that：By heating electrode with Pt
Al2O3Ceramic wafer, YSZ substrates, Pt reference electrodes and Co1-xZnxFe2O4Sensitive electrode is constituted, wherein 0.3≤x≤0.7；With reference to
Electrode and sensitive electrode are separate and symmetrically prepare at the two ends of YSZ upper surface of base plate, YSZ base lower surfaces with Pt
Heat the Al of electrode2O3Ceramic wafer is bonded together；And Co1-xZnxFe2O4Sensitive electrode material is prepared by the following method, is pressed
The ratio of element cobalt, zinc and iron weighs cobalt nitrate, zinc nitrate and ferric nitrate respectively, and the molar ratio of three is 1-x：x：2, add
Deionized water stirs 0.5~1 hour, makes three kinds of salt completely soluble；Cobalt nitrate and zinc nitrate solution are added dropwise to ferric nitrate
In solution, stirring in water bath 20~40 minutes at 50 DEG C~60 DEG C is allowed to be sufficiently mixed uniformly；Bath temperature is improved to 80 DEG C~90
DEG C, weigh citric acid and add in above-mentioned mixed solution, wherein citric acid and the mol ratio of whole metal ions are 0.5~2：1,
Stirred at 80 DEG C~90 DEG C to gel；Obtained gel is dried 24~48 hours at 85~95 DEG C and obtains xerogel；Will
Obtained xerogel sinters under the conditions of 700 DEG C~900 DEG C and obtains Co1-xZnxFe2O4Sensitive electrode material.
2. one kind described in claim 1 is with Co1-xZnxFe2O4For the preparation method of the acetone sensor of sensitive electrode material, its
Step is as follows：
(1) Pt reference electrodes are made：One end of YSZ upper surface of base plate after ultrasonic cleaning makes the pt references of 15~30 μ m-thicks
Electrode, the centre that reference electrode is bonded at after the Pt silk doublings for choosing 1~3cm length is contact conductor, and then YSZ substrates exist
Toast 0.5~2 hour, then sintered 20~40 minutes at 850~950 DEG C under the conditions of 110~130 DEG C, removing platinum slurry includes
Impurity including terpinol；
(2) Co is made1-xZnxFe2O4Sensitive electrode：By Co1-xZnxFe2O4Sensitive electrode material is slurred material, matter with deionized water
Concentration is measured between 1%~20%；With obtained slurry YSZ upper surface of base plate and reference electrode symmetric position prepare 20~
The sensitive electrode of 30 μ m-thicks, will equally be bonded on sensitive electrode after the platinum filament doubling of 1~3cm length and is used as contact conductor；
(3) the YSZ substrates of above-mentioned preparation are sintered into 1~3 hour at 700~900 DEG C, is secured firmly to sensitive electrode
On YSZ substrates；
(4) YSZ base lower surfaces are heated to the Al of electrode using inorganic bond with carrying Pt2O3Ceramic wafer is bonded together；
(5) device bonded is toasted 30~60 minutes under the conditions of 100 DEG C~120 DEG C, is then welded, encapsulated, from
And make and obtain with Co1-xZnxFe2O4Copper diethlydithiocarbamate is blended together for the YSZ bases of sensitive electrode.
3. one kind as claimed in claim 2 is with Co1-xZnxFe2O4For the preparation method of the acetone sensor of sensitive electrode material,
It is characterized in that：Heating rate in step (3) is 1~3 DEG C/min.
4. one kind as claimed in claim 2 is with Co1-xZnxFe2O4For the preparation method of the acetone sensor of sensitive electrode material,
It is characterized in that：It is to measure waterglass Na2SiO3·9H22~4mL of O, and weigh Al2O30.7~1.0g of powder, by waterglass with
Al2O3Powder is mixed and stirred for uniformly, inorganic bond needed for being made.
5. one kind as claimed in claim 2 is with Co1-xZnxFe2O4For the preparation method of the acetone sensor of sensitive electrode material,
It is characterized in that：The Al of electrode is heated with Pt2O3Ceramic wafer is in Al2O3Obtained, carried by silk-screen printing Pt on ceramic wafer
Pt heats the Al of electrode2O3Ceramic wafer is together used as the heating plate of device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234999.XA CN106950275A (en) | 2017-04-12 | 2017-04-12 | With Co1‑xZnxFe2O4Acetone sensor for sensitive electrode material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234999.XA CN106950275A (en) | 2017-04-12 | 2017-04-12 | With Co1‑xZnxFe2O4Acetone sensor for sensitive electrode material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106950275A true CN106950275A (en) | 2017-07-14 |
Family
ID=59474646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710234999.XA Pending CN106950275A (en) | 2017-04-12 | 2017-04-12 | With Co1‑xZnxFe2O4Acetone sensor for sensitive electrode material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106950275A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655948A (en) * | 2017-08-28 | 2018-02-02 | 吉林大学 | One kind is with La2NiO4Electric potential type H is blended together for the YSZ bases of sensitive electrode2Sensor and preparation method thereof |
| CN108107100A (en) * | 2017-12-18 | 2018-06-01 | 吉林大学 | With Sm2-xSrxNi2O4Acetone sensor, preparation method and applications for sensitive electrode material |
| CN108439491A (en) * | 2018-05-14 | 2018-08-24 | 太原理工大学 | A kind of preparation method and application having both magnetic and gas-sensitive property ferrous acid cupro-nickel nano material |
| CN110596217A (en) * | 2019-09-18 | 2019-12-20 | 吉林大学 | NiTa2O6All-solid-state acetone sensor used as sensitive electrode for diabetes diagnosis and preparation method thereof |
| CN114813880A (en) * | 2022-04-28 | 2022-07-29 | 安徽大学 | Integrated electrochemical gas sensor and preparation process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3952567A (en) * | 1974-06-14 | 1976-04-27 | The Hitachi Heating Appliances Co., Ltd. | Gas sensor |
| CN1486958A (en) * | 2003-04-01 | 2004-04-07 | 上海大学 | Prepn of doped magnetic ferrite material |
| CN102161764A (en) * | 2011-02-25 | 2011-08-24 | 东华大学 | Method for preparing cobalt-zinc ferrite/polypyrrole nano composite material |
| CN105929005A (en) * | 2016-04-20 | 2016-09-07 | 吉林大学 | Mixed-potential low-ppm acetone sensor based on YSZ and MNb2O6 sensitive electrode, and preparation method and application thereof |
-
2017
- 2017-04-12 CN CN201710234999.XA patent/CN106950275A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3952567A (en) * | 1974-06-14 | 1976-04-27 | The Hitachi Heating Appliances Co., Ltd. | Gas sensor |
| CN1486958A (en) * | 2003-04-01 | 2004-04-07 | 上海大学 | Prepn of doped magnetic ferrite material |
| CN102161764A (en) * | 2011-02-25 | 2011-08-24 | 东华大学 | Method for preparing cobalt-zinc ferrite/polypyrrole nano composite material |
| CN105929005A (en) * | 2016-04-20 | 2016-09-07 | 吉林大学 | Mixed-potential low-ppm acetone sensor based on YSZ and MNb2O6 sensitive electrode, and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| H. DELIGOZ ET.AL.: "Synthesis structural magnetic and electrical properties of Co1-xZnxFe2O4 (x = 0.0, 0.2) nanoparticles", 《MATERIALS RESEARCH BULLETIN》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655948A (en) * | 2017-08-28 | 2018-02-02 | 吉林大学 | One kind is with La2NiO4Electric potential type H is blended together for the YSZ bases of sensitive electrode2Sensor and preparation method thereof |
| CN107655948B (en) * | 2017-08-28 | 2020-03-10 | 吉林大学 | With La2NiO4YSZ-based mixed potential type H as sensitive electrode2S sensor and preparation method thereof |
| CN108107100A (en) * | 2017-12-18 | 2018-06-01 | 吉林大学 | With Sm2-xSrxNi2O4Acetone sensor, preparation method and applications for sensitive electrode material |
| CN108439491A (en) * | 2018-05-14 | 2018-08-24 | 太原理工大学 | A kind of preparation method and application having both magnetic and gas-sensitive property ferrous acid cupro-nickel nano material |
| CN110596217A (en) * | 2019-09-18 | 2019-12-20 | 吉林大学 | NiTa2O6All-solid-state acetone sensor used as sensitive electrode for diabetes diagnosis and preparation method thereof |
| CN114813880A (en) * | 2022-04-28 | 2022-07-29 | 安徽大学 | Integrated electrochemical gas sensor and preparation process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106950275A (en) | With Co1‑xZnxFe2O4Acetone sensor for sensitive electrode material and preparation method thereof | |
| CN107655948B (en) | With La2NiO4YSZ-based mixed potential type H as sensitive electrode2S sensor and preparation method thereof | |
| CN105259239B (en) | NiNb2O6Electric potential type acetone sensor and preparation method are blended together for the YSZ bases of sensitive electrode | |
| CN106093163B (en) | La0.8Sr0.2CoO3 is that the CeO2 bases of sensitive electrode blend together electric potential type acetone sensor, preparation method and applications | |
| TWI410625B (en) | Gas sensing material and gas sensor employing the same | |
| CN109946358A (en) | One kind is with MTiO3Electric potential type SO is blended together for the YSZ base of sensitive electrode2Sensor, preparation method and applications | |
| EP3258256B1 (en) | Material for sensing electrode of nox gas sensor | |
| CN108107100A (en) | With Sm2-xSrxNi2O4Acetone sensor, preparation method and applications for sensitive electrode material | |
| CN105929005A (en) | Mixed-potential low-ppm acetone sensor based on YSZ and MNb2O6 sensitive electrode, and preparation method and application thereof | |
| CN107860808A (en) | With SrMnO3For the CeO of sensitive electrode2Benzylacetone sensor, preparation method and applications | |
| Xiong et al. | Novel high-selectivity NO2 sensor incorporating mixed-oxide electrode | |
| Li et al. | A novel mixed-potential type NH3 sensor based on Ag nanoparticles decorated AgNbO3 sensing electrode synthesized by demixing method | |
| Lundsgaard et al. | A novel hydrogen gas sensor based on hydrogen uranyl phosphate | |
| CN108593738A (en) | With MMnO3Electric potential type triethylamine sensor and preparation method thereof is blended together for sensitive electrode | |
| CN107091868A (en) | Electric potential type SO2 sensors and preparation method thereof are blended together by sensitive electrode material of LaxSm1 xFeO3 | |
| CN110596217A (en) | NiTa2O6All-solid-state acetone sensor used as sensitive electrode for diabetes diagnosis and preparation method thereof | |
| CN101435790A (en) | Method for preparing multiple-electrode electrochemical gas sensor | |
| CN108760848A (en) | With BiFeO3For the CeO of sensitive electrode2Base blendes together electric potential type acetone sensor, preparation method and applications | |
| CN109946363A (en) | One kind is based on the porous SnO that classifies2/Zn2SnO4The C of sensitive electrode2H2Sensor and preparation method thereof | |
| CN108226256A (en) | With CoMoO4Stabilizing zirconia base for sensitive electrode blendes together electric potential type triethylamine sensor and preparation method thereof | |
| CN110243878A (en) | One kind is with Bi1-xLaxFeO3Electric potential type acetone sensor, preparation method and applications are blended together for sensitive electrode | |
| CN108627561A (en) | A kind of YSZ bases blend together electric potential type NO2Sensor and preparation method thereof | |
| CN113702472B (en) | (Ni 1-x Fe x ) Mixed potential type room temperature NO sensor with MOF as sensitive electrode and preparation method | |
| CN112946030B (en) | Based on La2NiFeO6CeO of sensitive electrode2Triethylamine-based sensor, preparation method and application thereof | |
| CN114813880A (en) | Integrated electrochemical gas sensor and preparation process thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170714 |
|
| RJ01 | Rejection of invention patent application after publication |