CN107337473B - In-situ growth of MoO on ceramic tubes3Nanosheet method and gas sensor - Google Patents
In-situ growth of MoO on ceramic tubes3Nanosheet method and gas sensor Download PDFInfo
- Publication number
- CN107337473B CN107337473B CN201710610711.4A CN201710610711A CN107337473B CN 107337473 B CN107337473 B CN 107337473B CN 201710610711 A CN201710610711 A CN 201710610711A CN 107337473 B CN107337473 B CN 107337473B
- Authority
- CN
- China
- Prior art keywords
- ceramic tube
- molybdenum oxide
- growth
- oxide
- molybdenum
- 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.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
Abstract
The invention relates to an in-situ growth method of MoO on a ceramic tube3A method of nano-sheet belongs to the technical field of nano-sensor preparation. The method comprises the following steps: (1) preparing a titanium oxide seed crystal layer solution; (2) preparing a molybdenum oxide growth solution: putting 0.1305 g of molybdenum acetylacetonate in a beaker, adding 35 mL of glacial acetic acid and 2 mL of deionized water, stirring until the molybdenum acetylacetonate is completely dissolved, and transferring the mixture to a high-pressure reaction kettle; (3) and (3) growth of the flaky structured nano molybdenum oxide: soaking the alumina ceramic tube in a titanium oxide seed crystal layer solution, and calcining for 2 h at 500 ℃; and (4) carrying out hydrothermal growth. According to the method, powder required by a coating method does not need to be prepared in advance, manual coating is not needed, and molybdenum oxide with a flaky structure directly grows on the alumina ceramic tube. The prepared sensor shows better selectivity to triethylamine and has improved responsiveness.
Description
Technical Field
The invention relates to an in-situ growth method of MoO on a ceramic tube3A method of nano-sheet belongs to the technical field of nano-sensor preparation.
Background
Along with the development of human science and technology and industrial society, various flammable and toxic gases are more and more widely applied. Due to the limitation of the self-perception range of human beings, the quantitative determination capability of the types and the concentrations of the toxic and harmful gases is unavailable. Therefore, it becomes important how to detect these gases quickly and accurately.
MoO3The material is an n-type semiconductor material, has the forbidden band width of about 3.2 eV, and has good stability, so the material can be used as a gas-sensitive material. Currently, people have mastered that MoO with different morphologies is prepared by different physical and chemical methods3Nanomaterials, for example: granular, rod-like, ribbon-like, flower-like, hollow sphere-like, sea urchin-like, and the like. The gas-sensitive mechanism of the molybdenum oxide material is surface resistance type, and the response process with gas mainly occurs on the surface of the material. Namely, the larger the specific surface area of the prepared molybdenum oxide material is, the more the surface adsorption sites are, and the more excellent the gas-sensitive performance is. Compared with the traditional molybdenum oxide planar thin film material, the MoO with good two-dimensional appearance3The nano sheet material has larger specific surface area undoubtedly, so the nano sheet material has higher application value in the field of gas sensors.
Disclosure of Invention
One of the objects of the present invention is: provides an in-situ growth method of MoO on a ceramic tube3A method of nanoplatelets. The method takes an alumina ceramic tube as a substrate, and adopts a hydrothermal method to directly grow molybdenum oxide nano-sheets on the surface of the alumina ceramic tube in a mixed solution of molybdenum acetylacetonate and glacial acetic acid. The invention adopts a hydrothermal method to make the molybdenum oxide with the nanosheet structure grow in a high-temperature and high-pressure growth environment. According to the invention, the molybdenum oxide nanosheets are directly constructed on the ceramic tube by a simple and environment-friendly hydrothermal method, and the process for preparing the gas sensor by manually coating the gas sensitive material in the prior art is omitted. The focus of current research is how to directly construct molybdenum oxide nanosheets grown on ceramic tubes.
The second purpose of the invention is to provide a gas sensor for detecting triethylamine gas and an application thereof in detecting triethylamine gas.
However, the prior art does not describe the method for in-situ growing molybdenum oxide nanosheets on ceramic tubes by a hydrothermal method.
In addition, in the process of in-situ growing the nano-sheet structure molybdenum oxide on the ceramic tube by adopting the method, the hydrothermal growth time can influence the appearance of the nano-molybdenum oxide; if it is controlled improperly, it is impossible to directly construct a sheet structure with a good morphology. Therefore, the invention strictly limits the process parameters.
The invention discloses an in-situ growth method of MoO on a ceramic tube3The method for preparing the nano-sheet comprises the following steps:
(1) preparing a titanium oxide seed layer solution
Preparing a titanium oxide seed crystal layer solution: measuring 8.5 mL of tetrabutyl titanate, placing the tetrabutyl titanate in a beaker, adding 34 mL of anhydrous ethanol and 2.5 mL of glycol amine, stirring for 2 hours, adding 5 mL of anhydrous ethanol and 0.5 mL of deionized water, continuing stirring for 2 hours, sealing the solution after stirring, and standing for 24 hours at room temperature for later use;
(2) preparing molybdenum oxide growth solution
Preparing a molybdenum oxide growth solution: putting 0.1305 g of molybdenum acetylacetonate in a beaker, adding 35 mL of glacial acetic acid and 2 mL of deionized water, stirring until the molybdenum acetylacetonate is completely dissolved, and transferring the mixture to a high-pressure reaction kettle;
(3) growth of nano molybdenum oxide with sheet structure
Soaking the alumina ceramic tube in a titanium oxide seed crystal layer solution, and calcining for 2 h at 500 ℃; then placing the tube in a high-pressure reaction kettle filled with a molybdenum oxide growth solution, carrying out hydrothermal growth, and then annealing the grown ceramic tube in a muffle furnace to obtain the two-dimensional sheet-structured nano molybdenum oxide growing in situ on the alumina ceramic tube.
In the above method, step (3), the hydrothermal growth temperature is preferably 120-.
In the method, step (3), preferably, the alumina ceramic tube is ultrasonically treated with acetone and ethanol for 30 min before being dipped. Mainly aims to obtain molybdenum oxide with good growth appearance on the alumina ceramic tube.
In the above method, step (3), preferredThe annealing conditions are as follows: by 2oThe temperature is increased to 300 ℃ at the rate of C/minoAnd C, preserving the temperature for 1h, and then naturally cooling to room temperature.
The invention also discloses a gas sensor prepared by adopting the two-dimensional sheet structure nano molybdenum oxide, which is characterized in that: the length of the nanometer molybdenum oxide sheet is about 500 nm, and the width of the nanometer molybdenum oxide sheet is about 50 nm; the length of the used alumina ceramic tube is 4mm, the inner diameter is 1 mm, and the outer diameter is 1.4 mm; gold electrodes are integrated at two ends of the alumina ceramic tube, the distance between the gold electrodes is 2 mm, and four platinum leads are integrated on the gold electrodes.
The gas sensor is a gas sensor for forming molybdenum oxide/magnesium oxide nanosheets, and is prepared by the following method: and depositing magnesium oxide particles on the surface of the two-dimensional sheet-structured nano molybdenum oxide of the aluminum oxide ceramic tube by using a pulsed laser deposition technology, wherein the magnesium oxide deposition frequency is 1000-5000 times.
The invention also discloses the gas sensor for detecting the triethylamine gas.
Advantageous effects
According to the method, powder required by a coating method does not need to be prepared in advance, manual coating is not needed, and molybdenum oxide with a sheet structure directly grows on the alumina ceramic tube; the preparation process of the molybdenum oxide with the sheet structure is also the preparation process of the gas-sensitive ceramic tube; the steps are simple and the time consumption is short; the preparation process of the traditional gas-sensitive ceramic tube is simplified, time and labor are saved, and the cost is saved;
the flaky-structure molybdenum oxide in-situ grown on the alumina ceramic tube prepared by the invention has controllable morphology, good nanosheet crystallization and uniform distribution, the length of the nanosheet is about 500 nm, the width of the nanosheet is about 50 nm, and the nanosheets are mutually connected to form a network;
the molybdenum oxide/magnesium oxide nanosheet sensor can improve the gas-sensitive performance of a molybdenum oxide nanoneedle; the catalyst shows better selectivity to triethylamine, and the response to triethylamine is improved. The response gas concentration was 50 ppm.
Drawings
FIG. 1 is an X-ray diffraction pattern of the nanosheet-structured molybdenum oxide prepared in example 1; in the figure, the abscissa represents the diffraction peak position, and the ordinate represents the diffraction peak intensity.
Fig. 2 is a partial field emission scanning electron microscope image and an EDS energy dispersion spectrogram of the gas-sensitive material of the nanosheet-structured molybdenum oxide sensor prepared in example 1;
FIG. 3 is a gas-sensitive property spectrum of the nano-sheet structure molybdenum oxide gas sensor prepared in example 1; in the figure, the abscissa represents the gas species, and the ordinate represents the sensitivity value. Wherein, 1 is ethanol, 2 is isopropanol, 3 is acetone, 4 is p-xylene, and 5 is triethylamine.
FIG. 4 is a scanning electron microscope picture of a molybdenum oxide/magnesium oxide nanosheet structure prepared in example 2 of the present invention;
FIG. 5 is a gas-sensitive performance spectrum of a gas-sensitive sensor of molybdenum oxide and molybdenum oxide/magnesium oxide nanosheet structure prepared in example 2 of the present invention; in the figure, the abscissa represents the gas species, and the ordinate represents the sensitivity value. Wherein, 1 is ethanol, 2 is isopropanol, 3 is acetone, 4 is p-xylene, and 5 is triethylamine.
FIG. 6 is a field emission scanning electron microscope image of the gas-sensitive material portion of the molybdenum oxide nanomaterial sensor prepared in comparative example 1;
Detailed Description
The present invention will be described in further detail with reference to the following examples and accompanying drawings.
Example 1
And (3) respectively ultrasonically cleaning the alumina ceramic tube for 30 min by using acetone, ethanol and deionized water, and drying for later use. Putting 8.5 mL of tetrabutyl titanate in a beaker, adding 34 mL of anhydrous ethanol and 2.5 mL of glycol amine, stirring for 2 h, then adding 5 mL of anhydrous ethanol and 0.5 mL of deionized water, continuing stirring for 2 h, sealing the solution after stirring, standing for 24h at room temperature for later use, putting 0.1305 g of molybdenum acetylacetonate in the beaker, adding 35 mL of glacial acetic acid and 2 mL of deionized water, stirring until the molybdenum acetylacetonate is completely dissolved, and transferring the solution to a high-pressure reaction kettle. Soaking the alumina ceramic tube in a titanium oxide seed crystal layer solution, and calcining for 2 h at 500 ℃; then placing the mixture into a high-pressure reaction kettle filled with precursor solution at 150 DEG CoCCarrying out hydrothermal growth for 24h, and then carrying out 2 times of growth on the grown ceramic tube in a muffle furnaceoHeating to the temperature of C/min300oC, carrying out heat preservation for 1h, annealing, and then naturally cooling to room temperature; thus obtaining the nanometer sheet-shaped structure molybdenum oxide which grows in the alumina ceramic tube in situ. The X-ray diffraction pattern of the sheet-shaped structure molybdenum oxide is shown in figure 1; as can be seen from fig. 1, the molybdenum oxide nanosheets are well crystallized with no other impurities present. The scanning electron microscope of the lamellar molybdenum oxide is shown in FIG. 2; as can be seen from FIG. 2, MoO3The nano sheets have uniform size and uniform distribution, are well crystallized, have the length of about 500 nm and the width of about 50 nm, and are mutually connected to form a network.
Welding the aluminum oxide ceramic tube into a gas sensor, wherein the length of the aluminum oxide ceramic tube is 4mm, the inner diameter is 1 mm, and the outer diameter is 1.4 mm; gold electrodes are integrated at two ends of the alumina ceramic tube, the distance between the gold electrodes is 2 mm, and four platinum leads are integrated on the gold electrodes.
The gas-sensitive performance was tested, as shown in fig. 3; as can be seen from FIG. 3, at the optimum operating temperature, the pure phase MoO3The response of the nanosheet to triethylamine can reach 50, and good selectivity to triethylamine is shown. The test of the gas is carried out in the air, and five gases are selected as reducing gases, specifically: 1 is ethanol, 2 is isopropanol, 3 is acetone, 4 is p-xylene, and 5 is triethylamine. As can be seen from the results of the tests, pure phase MoO3The sensitivity value of the nanosheet to triethylamine is about 50, and the sensitivity values of the nanosheet to other four gases are all about 5, so that the nanosheet can be regarded as pure-phase MoO3The nanometer has single selectivity to triethylamine.
Example 2
And (3) respectively ultrasonically cleaning the alumina ceramic tube for 30 min by using acetone, ethanol and deionized water, and drying for later use. Putting 8.5 mL of tetrabutyl titanate in a beaker, adding 34 mL of anhydrous ethanol and 2.5 mL of glycol amine, stirring for 2 h, then adding 5 mL of anhydrous ethanol and 0.5 mL of deionized water, continuing stirring for 2 h, sealing the solution after stirring, standing for 24h at room temperature for later use, putting 0.1305 g of molybdenum acetylacetonate in the beaker, adding 35 mL of glacial acetic acid and 2 mL of deionized water, stirring until the molybdenum acetylacetonate is completely dissolved, and transferring the solution to a high-pressure reaction kettle. Putting the alumina ceramic tube in oxygenAfter dipping in the Titania seed layer solution, the seed layer is dipped in 500oC, calcining for 2 h; then placing the mixture into a high-pressure reaction kettle filled with precursor solution at 150 DEG CoCCarrying out hydrothermal growth for 24h, and then carrying out 2 times of growth on the grown ceramic tube in a muffle furnaceoThe temperature is increased to 300 ℃ at the rate of C/minoC, carrying out heat preservation for 1h, annealing, and then naturally cooling to room temperature; obtaining the nano flaky structure molybdenum oxide which grows in the alumina ceramic tube in situ, wherein a scanning electron microscope of the flaky structure molybdenum oxide is shown in figure 2; the molybdenum oxide has controllable morphology, the nanosheets are well crystallized and uniformly distributed, the length of the nanosheets is about 500 nm, the width of the nanosheets is about 50 nm, and the nanosheets are mutually connected to form a network.
Depositing magnesium oxide material on the surface of the prepared molybdenum oxide with the sheet structure by using a pulsed laser deposition technology (depositing nano-scale substances on the surface of the material or growing a layer of film to be used, namely, pulsed laser deposition, wherein the pulsed laser deposition is to bombard a required target material by using laser, the target material is melted under the laser bombardment, the melted substances are deposited on the material needing the substances to be deposited, and the desired film or deposit can be obtained in such a way), wherein the deposition times are 1000 times, a scanning electron microscope is shown as figure 4, and MoO can be seen from figure 43The nano structure is still in a sheet shape and is uniformly distributed, the length of the nano sheet is about 500 nm, the width of the nano sheet is about 50 nm, and the nano sheets are mutually connected to form a network.
Welding the aluminum oxide ceramic tube into a gas sensor, wherein the length of the aluminum oxide ceramic tube is 4mm, the inner diameter is 1 mm, and the outer diameter is 1.4 mm; gold electrodes are integrated at two ends of the alumina ceramic tube, the distance between the gold electrodes is 2 mm, and four platinum leads are integrated on the gold electrodes.
The gas-sensitive properties were tested as shown in FIG. 5. As can be seen from FIG. 5, the gas-sensitive performance of the molybdenum oxide/magnesium oxide composite element is improved, the response value of the composite nanosheet structure gas-sensitive element to triethylamine reaches 150, and the composite nanosheet structure gas-sensitive element and triethylamine show the best selectivity. The test of the gas is carried out in the air, and five gases are selected as reducing gases, specifically: 1 is ethanol, 2 is isopropanol, 3 is acetone, 4 is p-xylene, and 5 is triethylamine. As can be seen from the results of the tests, MoO3/MgO nano-sheet to triethylamineThe sensitivity value of (A) is about 150, the sensitivity value of (B) to other four gases is basically unchanged, and the value is about 5, so that the value of (A) is considered to be about MoO after the MgO is compounded3The gas-sensitive performance of the nano-sheet is greatly improved.
Comparative example 1
Respectively ultrasonically cleaning an aluminum oxide ceramic tube with acetone, ethanol and deionized water for 30 min, drying, placing in a high-pressure reaction kettle filled with precursor solution (molybdenum oxide growth solution), carrying out hydrothermal growth for 24h at 150 ℃, and then carrying out hydrothermal growth on the grown ceramic tube in a muffle furnace by 2oThe temperature is increased to 300 ℃ at the rate of C/minoC, carrying out heat preservation for 1h, annealing, and then naturally cooling to room temperature; and finally obtaining the flaky structure nano molybdenum oxide which grows in the alumina ceramic tube in situ. The scanning electron microscope is shown in FIG. 6.
Welding the aluminum oxide ceramic tube into a gas sensor, wherein the length of the aluminum oxide ceramic tube is 4mm, the inner diameter is 1 mm, and the outer diameter is 1.4 mm; gold electrodes are integrated at two ends of the alumina ceramic tube, the distance between the gold electrodes is 2 mm, and four platinum leads are integrated on the gold electrodes.
The gas-sensitive performance of the gas sensor is tested, the gas test is carried out in the air, and five gases are selected as reducing gases, specifically: 1 is ethanol, 2 is isopropanol, 3 is acetone, 4 is p-xylene, and 5 is triethylamine. From the test results, we found that the sample obtained by directly placing the ceramic tube in the solution without using the seed layer had no gas sensitive response to five gases.
Claims (7)
1. In-situ growth of MoO on ceramic tube3The method for preparing the nano-sheet comprises the following steps:
(1) Preparing a titanium oxide seed layer solution
Preparing a titanium oxide seed crystal layer solution: measuring 8.5 mL of tetrabutyl titanate, placing the tetrabutyl titanate in a beaker, adding 34 mL of anhydrous ethanol and 2.5 mL of glycol amine, stirring for 2 hours, adding 5 mL of anhydrous ethanol and 0.5 mL of deionized water, continuing stirring for 2 hours, sealing the solution after stirring, and standing for 24 hours at room temperature for later use;
(2) Preparing molybdenum oxide growth solution
Preparing a molybdenum oxide growth solution: putting 0.1305 g of molybdenum acetylacetonate in a beaker, adding 35 mL of glacial acetic acid and 2 mL of deionized water, stirring until the molybdenum acetylacetonate is completely dissolved, and transferring the mixture to a high-pressure reaction kettle;
(3) Growth of nano molybdenum oxide with sheet structure
Soaking the alumina ceramic tube in a titanium oxide seed crystal layer solution, and calcining for 2 h at 500 ℃; then placing the tube in a high-pressure reaction kettle filled with a molybdenum oxide growth solution, carrying out hydrothermal growth, and then annealing the grown ceramic tube in a muffle furnace to obtain the two-dimensional sheet-structured nano molybdenum oxide growing in situ on the alumina ceramic tube.
2. The method as claimed in claim 1, wherein the hydrothermal growth temperature in step (3) is 120-180 ℃ for 12-24 h.
3. The method of claim 1, wherein in step (3), the alumina ceramic tube is sonicated with acetone and ethanol for 30 min before dipping.
4. The method of claim 1, wherein in step (3), the annealing conditions are: heating to 300 ℃ at the speed of 2 ℃/min, preserving the heat for 1h, and then naturally cooling to room temperature.
5. A gas sensor prepared by adopting the two-dimensional sheet structure nano molybdenum oxide as the claim 1, which is characterized in that: the length of the nanometer molybdenum oxide sheet is 500 nm, and the width of the nanometer molybdenum oxide sheet is 50 nm; the length of the used alumina ceramic tube is 4mm, the inner diameter is 1 mm, and the outer diameter is 1.4 mm; gold electrodes are integrated at two ends of the alumina ceramic tube, the distance between the gold electrodes is 2 mm, and four platinum leads are integrated on the gold electrodes.
6. The gas sensor of claim 5, wherein the gas sensor is prepared by the following method for forming molybdenum oxide/magnesium oxide nanosheets: and depositing magnesium oxide particles on the surface of the two-dimensional sheet-structured nano molybdenum oxide of the aluminum oxide ceramic tube by using a pulsed laser deposition technology, wherein the magnesium oxide deposition frequency is 1000-5000 times.
7. A gas sensor as claimed in claim 5 or 6 for use in the detection of triethylamine gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710610711.4A CN107337473B (en) | 2017-07-25 | 2017-07-25 | In-situ growth of MoO on ceramic tubes3Nanosheet method and gas sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710610711.4A CN107337473B (en) | 2017-07-25 | 2017-07-25 | In-situ growth of MoO on ceramic tubes3Nanosheet method and gas sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107337473A CN107337473A (en) | 2017-11-10 |
| CN107337473B true CN107337473B (en) | 2020-07-07 |
Family
ID=60216467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710610711.4A Active CN107337473B (en) | 2017-07-25 | 2017-07-25 | In-situ growth of MoO on ceramic tubes3Nanosheet method and gas sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107337473B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109205676B (en) * | 2018-08-30 | 2021-02-02 | 济南大学 | MoO (MoO)3Electrostatic spinning synthetic method of sheet structure |
| CN110013844A (en) * | 2019-04-23 | 2019-07-16 | 武汉科技大学 | A kind of reduction-state MoO3-xPhotochemical catalyst and its preparation method and application |
| CN110773162A (en) * | 2019-11-04 | 2020-02-11 | 青岛大学 | Preparation method and application of carbon-coated two-dimensional layered molybdenum oxide compound-supported noble metal |
| CN111994954A (en) * | 2020-08-20 | 2020-11-27 | 临沂大学 | MoO (MoO)3Gas-sensitive material and preparation method and application thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1165797A (en) * | 1996-05-22 | 1997-11-26 | 四川联合大学(四川大学) | Gas sensitive alumina-based material and gas sensitive component |
| JP2005220001A (en) * | 2004-02-09 | 2005-08-18 | Patent Technology Development Inc | Coating liquid for forming metal oxide thin film |
| JP2007155529A (en) * | 2005-12-06 | 2007-06-21 | Ngk Spark Plug Co Ltd | Ammonia gas sensor and its manufacturing method |
| CN103880064A (en) * | 2014-03-24 | 2014-06-25 | 济南大学 | Method for in-situ growth of two-dimensional lamellar structured nano-zinc oxide on ceramic tube |
| CN105439202A (en) * | 2015-07-29 | 2016-03-30 | 黑龙江大学 | Method for preparing molybdenum trioxide array adopting multilevel structure |
| CN106066351A (en) * | 2016-05-15 | 2016-11-02 | 浙江大学 | A kind of cobaltosic oxide nano chip arrays, the gas sensor comprising described array and application thereof of intersecting |
| CN106929921A (en) * | 2017-02-28 | 2017-07-07 | 济南大学 | A kind of method of the growth in situ hierarchy molybdenum disulfide nano bouquet on earthenware |
-
2017
- 2017-07-25 CN CN201710610711.4A patent/CN107337473B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1165797A (en) * | 1996-05-22 | 1997-11-26 | 四川联合大学(四川大学) | Gas sensitive alumina-based material and gas sensitive component |
| JP2005220001A (en) * | 2004-02-09 | 2005-08-18 | Patent Technology Development Inc | Coating liquid for forming metal oxide thin film |
| JP2007155529A (en) * | 2005-12-06 | 2007-06-21 | Ngk Spark Plug Co Ltd | Ammonia gas sensor and its manufacturing method |
| CN103880064A (en) * | 2014-03-24 | 2014-06-25 | 济南大学 | Method for in-situ growth of two-dimensional lamellar structured nano-zinc oxide on ceramic tube |
| CN105439202A (en) * | 2015-07-29 | 2016-03-30 | 黑龙江大学 | Method for preparing molybdenum trioxide array adopting multilevel structure |
| CN106066351A (en) * | 2016-05-15 | 2016-11-02 | 浙江大学 | A kind of cobaltosic oxide nano chip arrays, the gas sensor comprising described array and application thereof of intersecting |
| CN106929921A (en) * | 2017-02-28 | 2017-07-07 | 济南大学 | A kind of method of the growth in situ hierarchy molybdenum disulfide nano bouquet on earthenware |
Non-Patent Citations (4)
| Title |
|---|
| "A novel sensor for fast detection of triethylamine based on rutile TiO2 nanorod arrays";Hongyan Yang et al.;《Sensors and Actuators B：Chemical》;20140916;第205卷;第322-328页 * |
| "A novel tin oxide-based recoverable thick film SO2 gas sensor promoted with magnesium and vanadium oxides";Soo Chool Lee et al.;《Sensors and Actuators B: Chemical》;20110929;第160卷;第1328-1334页 * |
| "Construction of three-dimensional flower-like α-MoO3 with hierarchical structure for highly selective triethylamine sensor";Li-li Sui et al.;《Sensors and Actuators B: Chemical》;20141113;第208卷;第406-414页 * |
| "MoO3/TiO2 纳米棒阵列的气敏性质研究";杨宏艳等;《中国化学会第29届学术年会摘要集》;20140831;第1页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107337473A (en) | 2017-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107337473B (en) | In-situ growth of MoO on ceramic tubes3Nanosheet method and gas sensor | |
| Chen et al. | In-situ growth of ZnO nanowire arrays on the sensing electrode via a facile hydrothermal route for high-performance NO2 sensor | |
| Van Hieu | Comparative study of gas sensor performance of SnO2 nanowires and their hierarchical nanostructures | |
| Perillo et al. | Low temperature trimethylamine flexible gas sensor based on TiO2 membrane nanotubes | |
| Sun et al. | Rapid synthesis of ZnO nano-rods by one-step, room-temperature, solid-state reaction and their gas-sensing properties | |
| CN109709192B (en) | Gas-sensitive nanomaterial based on tungsten oxide/tin oxide core-shell nanosheet structure, preparation process and application thereof | |
| Ridha et al. | Defects-controlled ZnO nanorods with high aspect ratio for ethanol detection | |
| Alver et al. | Synthesis and characterization of spray pyrolysis Zinc Oxide microrods | |
| Hakim et al. | Synthesis of vanadium pentoxide nanoneedles by physical vapour deposition and their highly sensitive behavior towards acetone at room temperature | |
| Mirabbaszadeh et al. | Synthesis and properties of ZnO nanorods as ethanol gas sensors | |
| CN103880064A (en) | Method for in-situ growth of two-dimensional lamellar structured nano-zinc oxide on ceramic tube | |
| Yang et al. | Photoresponse of hydrothermally grown lateral ZnO nanowires | |
| Cai et al. | Hollow cylinder ZnO/SnO 2 nanostructures synthesized by ultrasonic spray pyrolysis and their gas-sensing performance | |
| Teimoori et al. | Investigation on the electrical and methane gas-sensing properties of ZnO thin films produced by different methods | |
| Pan et al. | Studies on the optoelectronic properties of the thermally evaporated tin-doped indium oxide nanostructures | |
| Labis et al. | Designing zinc oxide nanostructures (nanoworms, nanoflowers, nanowalls, and nanorods) by pulsed laser ablation technique for gas‐sensing application | |
| Hadiyan et al. | Sub-ppm acetone gas sensing properties of free-standing ZnO nanorods | |
| Zappa et al. | Copper oxide nanowires prepared by thermal oxidation for chemical sensing | |
| CN106929921B (en) | Method for in-situ growth of hierarchical-structure molybdenum disulfide nano flower balls on ceramic tube | |
| Kumar et al. | Synthesis of ZnO nanostructures | |
| Gonzalez et al. | NO2 sensing properties of thermally or UV activated In2O3 nano-octahedra | |
| Lee et al. | Preparation of high-aspect-ratio ZnO nanorod arrays for the detection of several organic solvents at room working temperature | |
| Parthangal et al. | Direct synthesis of tin oxide nanotubes on microhotplates using carbon nanotubes as templates | |
| CN104761154B (en) | A kind of method that utilization organic macromolecule material makees catalyst preparation ITO nano wires | |
| Kim et al. | ZnO–SnO2 branch–stem nanowires based on a two-step process: Synthesis and sensing capability |
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 |