CN113295737A - Manganese-doped cobaltosic oxide porous nano flaky material and preparation method and application thereof - Google Patents
Manganese-doped cobaltosic oxide porous nano flaky material and preparation method and application thereof Download PDFInfo
- Publication number
- CN113295737A CN113295737A CN202110536373.0A CN202110536373A CN113295737A CN 113295737 A CN113295737 A CN 113295737A CN 202110536373 A CN202110536373 A CN 202110536373A CN 113295737 A CN113295737 A CN 113295737A
- Authority
- CN
- China
- Prior art keywords
- manganese
- cobaltosic oxide
- oxide porous
- doped
- doped cobaltosic
- 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.)
- Granted
Links
- UBEWDCMIDFGDOO-UHFFFAOYSA-N cobalt(2+);cobalt(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Co+2].[Co+3].[Co+3] UBEWDCMIDFGDOO-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 239000000463 material Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 75
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 31
- 150000002484 inorganic compounds Chemical class 0.000 claims abstract description 18
- 229910010272 inorganic material Inorganic materials 0.000 claims abstract description 18
- 239000002135 nanosheet Substances 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 10
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 9
- 239000010941 cobalt Substances 0.000 claims abstract description 9
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 9
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 5
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims abstract description 4
- 239000004312 hexamethylene tetramine Substances 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 4
- 239000011572 manganese Substances 0.000 claims description 24
- 229910052748 manganese Inorganic materials 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000005245 sintering Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 4
- 229910021380 Manganese Chloride Inorganic materials 0.000 claims description 2
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 239000011565 manganese chloride Substances 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 230000004044 response Effects 0.000 abstract description 9
- 239000008367 deionised water Substances 0.000 abstract description 3
- 229910021641 deionized water Inorganic materials 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000001354 calcination Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 239000011540 sensing material Substances 0.000 description 26
- 230000008569 process Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000001237 Raman spectrum Methods 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000012855 volatile organic compound Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012295 chemical reaction liquid Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(II) nitrate Inorganic materials [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002064 nanoplatelet Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
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
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
- G01N27/125—Composition of the body, e.g. the composition of its sensitive layer
- G01N27/127—Composition of the body, e.g. the composition of its sensitive layer comprising nanoparticles
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (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
The invention discloses a manganese-doped cobaltosic oxide porous nano flaky material as well as a preparation method and application thereof. Dissolving inorganic compound of manganese element, inorganic compound of cobalt element and hexamethylenetetramine in deionized water, and preparing manganese-doped alpha-Co (OH) by a hydrothermal method2And washing and drying the hydrothermal product, and further calcining to obtain the manganese-doped cobaltosic oxide porous nanosheet material. The prepared manganese-doped cobaltosic oxide material has good toluene gas sensing performance, short response/recovery time and good stability, and has potential application prospect in monitoring toluene content in the environment such as atmosphere, chemical plant, home and the like.
Description
Technical Field
The invention relates to a gas sensing material, in particular to a sensing material for sensing toluene gas molecules of volatile organic compounds, and particularly relates to a preparation method and application of a manganese-doped cobaltosic oxide porous nano flaky material for sensing toluene gas molecules.
Background
In the development trend of new era, the gas sensing technology is widely applied to various fields of monitoring the air quality of environment, medical diagnosis, industrial safety, food safety and the like. The gas molecules interact with the sensing material in the core part of the sensor during sensing the material, so that the physical or chemical property of the sensing material is changed, the physical or chemical property change of the sensing material is recorded or amplified through external equipment and is used as an output signal of the sensing material to the target gas molecules, and therefore the corresponding relation between the signal change recorded by the equipment and the target gas molecules is established, and the purpose of detecting the target gas molecules is achieved. Among many sensing materials, a sensor prepared by using a metal oxide as a sensing material has the advantages of simplicity, portability, good compatibility, relatively simple configuration and operation principle, and the like, and thus, the metal oxide is favored by most gas sensing researchers. However, the metal oxide materials studied at present have low response to target gas molecules, and most prepared sensors are suitable for detecting gas molecules with strong reducibility, such as ethanol, acetone and the like. For aromatic compounds with high stability, such as toluene, the sensing materials reported at present are difficult to detect such volatile organic compounds. Meanwhile, toluene molecule as a typical aromatic volatile organic compound has high toxicity and carcinogenicity, and seriously affects and threatens human health and atmospheric environment. Therefore, the development and preparation of the toluene gas sensing material with high response performance have great significance for the development of gas sensors.
The gas sensing process is a process of interaction between gas and sensing material, namely, gas molecules are adsorbed on the surface of the sensing material, then react on the surface of the sensing material, and finally are separated from the surface of the sensing material, and the process is a dynamic cycle reciprocating process. Therefore, when designing and preparing the sensing material, the adsorption capacity and mass transfer process of gas molecules on the surface of the material need to be considered. Doping modification is an effective strategy to change the surface state of the material, so that the adsorption capacity of gas molecules on the surface of the material can be adjusted. The mass transfer process is mainly influenced by the shape and structure of the material. Therefore, the adsorption capacity and mass transfer process of gas molecules on the surface of the sensing material have a significant influence on the gas sensing performance.
Disclosure of Invention
The invention aims to provide a manganese-doped cobaltosic oxide porous nano material and a preparation method thereof aiming at the existing problems in gas sensing materials, and the material has better toluene gas sensing performance.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a manganese-doped cobaltosic oxide porous nano flaky material is a nano flaky material prepared by an inorganic compound of a manganese element and an inorganic compound of a cobalt element according to a certain proportion.
Further, the inorganic compound of manganese element includes Mn (NO)3)2·4H2O and MnCl2·4H2And O is any one of the above.
Further, the inorganic compound of cobalt element includes Co (NO)3)2·6H2O。
Further, the ratio of the inorganic compound of manganese element to the inorganic compound of cobalt element is 0 to 9%, and may be 0%, 1%, 3%, 5%, 7%, 9%, preferably 3%.
The invention also provides a preparation method of the manganese-doped cobaltosic oxide porous nano flaky material, which comprises the following steps:
(1) selecting inorganic compounds of manganese element, inorganic compounds of cobalt element and hexamethylenetetramine as raw materials, dissolving the raw materials in water, and further obtaining manganese-doped alpha-Co (OH) through hydrothermal reaction2A nano-sheet material;
(2) washing and drying the manganese doped alpha-Co (OH) prepared2Nano sheet material;
(3) Doping manganese with alpha-Co (OH)2And heating the material for continuous sintering, and naturally cooling to room temperature to obtain the manganese-doped cobaltosic oxide porous nanosheet sensing material.
Further, the temperature of the hydrothermal reaction in the step (1) is 80-120 ℃, for example, 80 ℃, 90 ℃, 100 ℃, 110 ℃, 120 ℃, preferably 90 ℃; the reaction time is 3-24 h, such as 3h, 6h, 12h, 24h, preferably 6 h.
Further, the drying in the step (2) is carried out in an oven, and the drying temperature is 60-80 ℃, such as 60 ℃, 65 ℃, 70 ℃, 75 ℃, 80 ℃, preferably 60 ℃; the drying time is 3-24 h; for example 3h, 6h, 9h, 12h, 24h, preferably 12 h.
Further, the heating rate of the heating in the step (3) is 1-10 ℃ per minute-1E.g. 1 ℃ min-1、3℃·min-1、5℃·min-1、7℃·min-1、10℃·min-1Preferably 3 ℃ min-1。
Further, the sintering temperature in the step (3) is 300-500 ℃, for example 300 ℃, 350 ℃, 400 ℃, 450 ℃, 500 ℃, preferably 450 ℃; the sintering time is 1-4 h, such as 1h, 2h, 3h, 4h, preferably 2 h.
The invention also provides application of the prepared manganese-doped cobaltosic oxide porous nano flaky material, and the manganese-doped cobaltosic oxide porous nano flaky material is applied to sensing toluene gas molecules.
Compared with the prior art, the invention has the following beneficial effects:
(1) the sensing material with the porous nano flaky structure is prepared, and is beneficial to the mass transfer process in the gas sensing reaction;
(2) the manganese-doped cobaltosic oxide porous nano flaky material has higher toluene sensing performance;
(3) the manganese-doped cobaltosic oxide porous nano flaky material has a wider toluene concentration response range and good stability;
(4) the invention adopts nontoxic and harmless components, and reduces the harm to human health and ecological environment.
Drawings
FIG. 1 shows the alpha-Co (OH) according to the present invention2And Co3O4Scanning electron micrograph of (1);
FIG. 2 shows the alpha-Co (OH) according to the present invention2And manganese doped alpha-Co (OH)2X-ray diffraction patterns and Raman spectra of (a);
FIG. 3 shows the Co of the present invention3O4And manganese doped Co3O4X-ray diffraction patterns and Raman spectra of (a);
FIG. 4 shows the Co of the present invention3O4And manganese doped Co3O4Schematic diagram of material modified gold-inserted electrode;
FIG. 5 shows the Co of the present invention3O4And manganese doped Co3O4Response and resistance change curves for 100ppm toluene gas molecules at different operating temperatures.
FIG. 6 shows the Co of the present invention3O4And manganese doped Co3O4And the nano sheet material is used for sensing a performance test result graph of the toluene gas molecules under the optimal working condition.
Detailed Description
To better illustrate the invention and to facilitate the understanding of the technical solutions thereof, typical but non-limiting examples of the invention are as follows:
example 1
Preparation of manganese-doped cobaltosic oxide porous nano material
1425.7mg Co (NO) were weighed out on an analytical balance3)2·6H2O、38.0mg Mn(NO3)2·4H2Dissolving O and 2124.1mg of hexamethylenetetramine in 50mL of deionized water, continuously stirring for 10min under the condition of magnetic stirring, transferring the reaction liquid to a 70mL polytetrafluoroethylene lining, placing the polytetrafluoroethylene containing the reaction liquid in a stainless steel reaction kettle, placing the reaction kettle in an oven, and simultaneously heating to 90 ℃ to react for 6 h. After the reaction is finished, obtaining manganese-doped alpha-Co (OH) through centrifugation, water washing and drying2And finallyWeighing 100mg manganese doped alpha-Co (OH)2Placing into a porcelain boat, and adding manganese-doped alpha-Co (OH)2The porcelain boat is placed in a muffle furnace at 3 ℃ for min-1Heating to 450 ℃ at a heating rate for sintering for 2h to finally obtain the manganese-doped Co3O4Porous nanoplatelets.
As can be seen from FIG. 1, prepared α -Co (OH)2Manganese doped alpha-Co (OH)2、Co3O4And manganese doped Co3O4Exhibits a nano-sheet structure and is sintered to obtain Co3O4And manganese doped Co3O4The structure of the porous sheet is presented.
As can be seen from FIGS. 2 and 3, the X-ray diffraction pattern and Raman spectrum characterization showed that alpha-Co (OH) was successfully prepared2Manganese doped alpha-Co (OH)2、Co3O4And manganese doped Co3O4And (3) nano materials.
Example 2
Preparation of modified electrode
The modified electrode preparation process is shown in fig. 4. Separately weighing 4.0mg of prepared Co with an analytical balance3O4And manganese doped Co3O4And adding 200 mu L of deionized water, carrying out ultrasonic treatment for 1min to obtain uniform dispersion liquid, measuring 1.5 mu L of dispersion liquid, dripping the dispersion liquid on the surface of a 3X 3 gold finger electrode, and placing the gold finger electrode on a heating table and baking for 1h at 50 ℃ to obtain the modified electrode loaded with the sensing material. The modified electrode is placed in a gas test system and is heated and aged for 2h at 300 ℃ under the condition that the applied bias voltage is 2.0V.
Example 3
Influence of different manganese doping amounts on toluene gas sensing performance
Firstly, under different working temperatures, the response condition of the prepared sensing electrode to 100ppm toluene gas is shown in fig. 5a, and the response degree of the sensing material to the toluene gas is increased along with the increase of the working temperature from 180 ℃ to 260 ℃; between 280 ℃ and 360 ℃, the response of the sensing material to toluene gas is reduced along with the increase of the working temperature. At the same time, manganese doped Co can be seen3O4SensingThe material has higher toluene gas sensing performance. In addition, as shown in FIG. 5b, compared to undoped Co3O4Sensing material, manganese doped Co3O4Has higher resistance, and shows that the doping manganese element influences Co3O4Mobility rate of medium carriers, resulting in manganese doped Co3O4The sensing material has a higher resistance.
Example 4
Response of sensing material to different toluene concentration
The optimum working temperature of the selected sensor is 280 ℃, and toluene gas with different concentrations is introduced into the gas sensing test system, and the test result is shown in figure 6, compared with the undoped Co3O4Sensing material, manganese doped Co3O4The toluene gas sensor has higher toluene gas sensing performance under different toluene concentration conditions, and has a wider toluene concentration response range.
Claims (10)
1. The manganese-doped cobaltosic oxide porous nano flaky material is characterized in that the manganese-doped cobaltosic oxide porous nano flaky material is prepared by an inorganic compound of manganese element and an inorganic compound of cobalt element according to a certain proportion.
2. The manganese-doped cobaltosic oxide porous nanosheet material of claim 1, wherein the inorganic compound of manganese element comprises Mn (NO)3)2·4H2O and MnCl2·4H2And O is any one of the above.
3. The manganese-doped cobaltosic oxide porous nanosheet material of claim 1, wherein the inorganic compound of elemental cobalt comprises Co (NO)3)2·6H2O。
4. The manganese-doped cobaltosic oxide porous nanosheet material of claim 1, wherein the ratio of the inorganic compound of manganese to the inorganic compound of cobalt is 0-9%.
5. A method for preparing a manganese-doped cobaltosic oxide porous nanosheet material according to any one of claims 1 to 4, comprising the steps of:
(1) selecting inorganic compounds of manganese element, inorganic compounds of cobalt element and hexamethylenetetramine as raw materials, dissolving the raw materials in water, and further obtaining manganese-doped alpha-Co (OH) through hydrothermal reaction2A nano-sheet material;
(2) washing and drying the manganese doped alpha-Co (OH) prepared2A nano-sheet material;
(3) doping manganese with alpha-Co (OH)2Heating the material to be sintered continuously, and then naturally cooling to room temperature to obtain the manganese-doped cobaltosic oxide porous nano flaky material.
6. The preparation method of the manganese-doped cobaltosic oxide porous nano flaky material according to claim 5, wherein the hydrothermal reaction temperature in the step (1) is 80-120 ℃, and the reaction time is 3-24 h.
7. The preparation method of the manganese-doped cobaltosic oxide porous nano flaky material according to claim 5, wherein the drying in the step (2) is carried out in an oven, the drying temperature is 60-80 ℃, and the drying time is 3-24 h.
8. The preparation method of the manganese-doped cobaltosic oxide porous nano flaky material according to claim 5, wherein the heating rate in the step (3) is 1-10 ℃ per minute-1。
9. The preparation method of the manganese-doped cobaltosic oxide porous nanosheet-shaped material according to claim 5, wherein the sintering temperature in the step (3) is 300-500 ℃ and the sintering time is 1-4 h.
10. Use of a manganese-doped cobaltosic oxide porous nanosheet material prepared according to any one of claims 5 to 9, wherein the manganese-doped cobaltosic oxide porous nanosheet material is used to sense toluene gas molecules.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110536373.0A CN113295737B (en) | 2021-05-17 | 2021-05-17 | Manganese-doped cobaltosic oxide porous nano flaky material and preparation method and application thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110536373.0A CN113295737B (en) | 2021-05-17 | 2021-05-17 | Manganese-doped cobaltosic oxide porous nano flaky material and preparation method and application thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113295737A true CN113295737A (en) | 2021-08-24 |
CN113295737B CN113295737B (en) | 2022-10-18 |
Family
ID=77322518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110536373.0A Active CN113295737B (en) | 2021-05-17 | 2021-05-17 | Manganese-doped cobaltosic oxide porous nano flaky material and preparation method and application thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113295737B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114243030A (en) * | 2021-12-21 | 2022-03-25 | 广西师范大学 | Preparation method and application of doping type tubular cobalt-based material based on template-free method |
CN114668850A (en) * | 2022-03-17 | 2022-06-28 | 中山市华舜科技有限责任公司 | Preparation method of capacitance antibacterial material |
CN117819612A (en) * | 2024-01-08 | 2024-04-05 | 科立鑫(珠海)新能源有限公司 | Preparation process of doped cobaltosic oxide |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070009415A1 (en) * | 2003-06-25 | 2007-01-11 | Stefan Faber | Mixed metal oxides and use thereof in co2 sensors |
CN103543184A (en) * | 2013-10-18 | 2014-01-29 | 浙江大学 | Gas-sensitive sensor based on cobaltosic oxide nanoneedle as well as preparation method thereof |
CN104528841A (en) * | 2014-12-17 | 2015-04-22 | 陕西科技大学 | Method for preparing nano Co2(OH)3Cl gas sensitive material by ultrasonic-microwave hydrothermal method and application |
CN107572601A (en) * | 2017-09-04 | 2018-01-12 | 天津大学 | A kind of synthetic method of CoO appearance of nano material regulation and control |
US20180031532A1 (en) * | 2015-02-16 | 2018-02-01 | Korea University Research And Business Foundation | Methylbenzene gas sensor using palladium-containing cobalt oxide nanostructures and method for manufacturing the same |
CN110082406A (en) * | 2019-06-06 | 2019-08-02 | 吉林大学 | One kind being based on SnO2-Co3O4The dimethylbenzene gas sensor and preparation method thereof of hetero-junctions nanostructure sensitive material |
CN110455891A (en) * | 2019-08-20 | 2019-11-15 | 吉林大学 | Based on CoWO4-Co3O4The dimethylbenzene gas sensor and preparation method thereof of hetero-junctions nanostructure sensitive material |
CN110885099A (en) * | 2019-11-26 | 2020-03-17 | 东莞理工学院 | Solvent-free synthesis method and application of cobaltosic oxide |
CN112591803A (en) * | 2020-12-28 | 2021-04-02 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation of manganous oxide cluster modified cobaltosic oxide nano material for detection, product and application |
-
2021
- 2021-05-17 CN CN202110536373.0A patent/CN113295737B/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070009415A1 (en) * | 2003-06-25 | 2007-01-11 | Stefan Faber | Mixed metal oxides and use thereof in co2 sensors |
CN103543184A (en) * | 2013-10-18 | 2014-01-29 | 浙江大学 | Gas-sensitive sensor based on cobaltosic oxide nanoneedle as well as preparation method thereof |
CN104528841A (en) * | 2014-12-17 | 2015-04-22 | 陕西科技大学 | Method for preparing nano Co2(OH)3Cl gas sensitive material by ultrasonic-microwave hydrothermal method and application |
US20180031532A1 (en) * | 2015-02-16 | 2018-02-01 | Korea University Research And Business Foundation | Methylbenzene gas sensor using palladium-containing cobalt oxide nanostructures and method for manufacturing the same |
CN107572601A (en) * | 2017-09-04 | 2018-01-12 | 天津大学 | A kind of synthetic method of CoO appearance of nano material regulation and control |
CN110082406A (en) * | 2019-06-06 | 2019-08-02 | 吉林大学 | One kind being based on SnO2-Co3O4The dimethylbenzene gas sensor and preparation method thereof of hetero-junctions nanostructure sensitive material |
CN110455891A (en) * | 2019-08-20 | 2019-11-15 | 吉林大学 | Based on CoWO4-Co3O4The dimethylbenzene gas sensor and preparation method thereof of hetero-junctions nanostructure sensitive material |
CN110885099A (en) * | 2019-11-26 | 2020-03-17 | 东莞理工学院 | Solvent-free synthesis method and application of cobaltosic oxide |
CN112591803A (en) * | 2020-12-28 | 2021-04-02 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation of manganous oxide cluster modified cobaltosic oxide nano material for detection, product and application |
Non-Patent Citations (1)
Title |
---|
汤丹蕾 等: ""EDTA 辅助合成Co3O4 纳米材料及其气敏性能"", 《无机材料学报》, vol. 35, no. 11, 30 November 2020 (2020-11-30) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114243030A (en) * | 2021-12-21 | 2022-03-25 | 广西师范大学 | Preparation method and application of doping type tubular cobalt-based material based on template-free method |
CN114668850A (en) * | 2022-03-17 | 2022-06-28 | 中山市华舜科技有限责任公司 | Preparation method of capacitance antibacterial material |
CN114668850B (en) * | 2022-03-17 | 2024-04-19 | 中山市华舜科技有限责任公司 | Preparation method of capacitor antibacterial material |
CN117819612A (en) * | 2024-01-08 | 2024-04-05 | 科立鑫(珠海)新能源有限公司 | Preparation process of doped cobaltosic oxide |
CN117819612B (en) * | 2024-01-08 | 2024-06-11 | 科立鑫(珠海)新能源有限公司 | Preparation process of doped cobaltosic oxide |
Also Published As
Publication number | Publication date |
---|---|
CN113295737B (en) | 2022-10-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN113295737B (en) | Manganese-doped cobaltosic oxide porous nano flaky material and preparation method and application thereof | |
Wei et al. | CO gas sensing of Pd-doped ZnO nanofibers synthesized by electrospinning method | |
Liu et al. | Synthesis of Ce-doped In2O3 nanostructure for gas sensor applications | |
Li et al. | CuO particles and plates: synthesis and gas-sensor application | |
CN108732207B (en) | Sensitive material for formaldehyde detection and preparation method and application thereof | |
Amanulla et al. | A non-enzymatic amperometric hydrogen peroxide sensor based on iron nanoparticles decorated reduced graphene oxide nanocomposite | |
Chen et al. | Superior ethanol-sensing properties based on Ni-doped SnO2 p–n heterojunction hollow spheres | |
Kanchana et al. | EDTA assisted synthesis of hydroxyapatite nanoparticles for electrochemical sensing of uric acid | |
Wang et al. | High efficiency xylene detection based on porous MoO3 nanosheets | |
Hakim et al. | Synthesis of vanadium pentoxide nanoneedles by physical vapour deposition and their highly sensitive behavior towards acetone at room temperature | |
Wang et al. | Co3O4 hollow nanotubes: facile synthesis and gas sensing properties | |
CN109142465B (en) | Preparation method of cerium-doped tin dioxide sensing material for detecting formaldehyde at low temperature | |
CN110833817A (en) | Dry synthesis method of rice hull biochar loaded nano-iron material | |
CN106986390B (en) | A kind of gas sensitive and preparation method thereof detecting alcohol | |
Wan et al. | Dense doping of indium to coral-like SnO2 nanostructures through a plasma-assisted strategy for sensitive and selective detection of chlorobenzene | |
Wang et al. | Crucial structural effects of porous Co3O4 derived from Prussian blue analogue on the enhanced gas sensing performance | |
Wang et al. | Fast detection of alcohols by novel sea cucumber-like indium tungsten oxide | |
CN111686734B (en) | Preparation method and application of magnetic porous nickel nanosheets | |
Blessi et al. | Enhanced electrochemical performance and humidity sensing properties of Al3+ substituted mesoporous SnO2 nanoparticles | |
CN108439491A (en) | A kind of preparation method and application having both magnetic and gas-sensitive property ferrous acid cupro-nickel nano material | |
CN111239217A (en) | N-doped carbon-wrapped Co @ Co3O4Core-shell particle polyhedron and preparation method and application thereof | |
CN112777586A (en) | Preparation and application of sensing film for ammonia sensor | |
CN108609658B (en) | Preparation method of reduced tungsten oxide/nitrogen-doped graphene compound | |
CN108217750B (en) | α -Fe2O3/FeOOH composite functional material and preparation method and application thereof | |
CN110879245A (en) | Preparation method of heavy metal ion nano sensitive material |
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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant |