CN106567154A - Composite fiber gas sensitive material containing cerium-doped nano TiO2 and preparation method of same - Google Patents
Composite fiber gas sensitive material containing cerium-doped nano TiO2 and preparation method of same Download PDFInfo
- Publication number
- CN106567154A CN106567154A CN201610988886.4A CN201610988886A CN106567154A CN 106567154 A CN106567154 A CN 106567154A CN 201610988886 A CN201610988886 A CN 201610988886A CN 106567154 A CN106567154 A CN 106567154A
- Authority
- CN
- China
- Prior art keywords
- parts
- solution
- fiber
- nano
- composite
- 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
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/94—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Textile Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Analytical Chemistry (AREA)
- Nanotechnology (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Artificial Filaments (AREA)
- Multicomponent Fibers (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention discloses a composite fiber gas sensitive material containing cerium-doped nano TiO2, which is composed of, by weight, 35-50 parts of a pyrrole monomer, 16-24 parts of polyvinyl alcohol, 13-25 parts of zinc nitrate, 40-55 parts of N,N-dimethylformamide, 5-9 parts of p-toluenesulfonic acid, 95-115 parts of ferric chloride, 6-12 parts of cupric nitrate, proper amounts of deionized water and anhydrous ethanol, 3-6 parts of cerium chloride, 5-10 parts of tetrabutyl titanate, and 0.2-0.8 parts of hydrofluoric acid. In the method, through electrostatic spinning, polyvinyl alcohol/zinc salt compound nano fibers are generated on a substrate, and then the compound nano fibers are calcined to produce a ZnO nano fiber material; through in-situ polymerization, the compound structure material with the ZnO fiber as a core layer and polypyrrole as a skin layer is produced; and finally, infiltration and calcination are carried out to produce the composite nano fiber material supporting CuO. The material is significantly increased in specific surface area and can be widely applied in detection and monitoring of toxic and harmful gases.
Description
Technical field
The present invention relates to gas sensing property Material Field, and in particular to a kind of composite fibre containing cerium-doped nanometer titanium dioxide
Gas sensitive and preparation method thereof.
Background technology
The discharge of production waste gas, vehicle exhaust etc. reduces air quality, caused by inflammable gas in fire explosion, coal gas
In rapid succession, the detection and monitoring to toxic and harmful becomes particularly important to malicious accident.But the nanometer air-sensitive material of single structure
Often there is material itself easy " reunion " in material, specific surface is low, air-sensitive performance is unstable, sensitivity is relatively low, test temperature is higher, choosing
The shortcomings of selecting property difference, need to construct multilevel hierarchy nano composite material and improve its specific surface to improve air-sensitive performance.
Electrostatic spinning as preparing 1-dimention nano fiber common method, with process controllability, repeatability, operable
Property, fibre dimensions controllability the advantages of, the 3 D stereo nano fibrous membrane prepared by the technology have higher specific surface area,
The advantages of abundant pore structure, controllable packed structures, be conducive to the diffusion and absorption in gas fibrous membrane, be that one kind prepares height
The preferable nano material of performance sensing element.
Zhang Yue, Qin little Hong et al. are at which《Application and research of the Static Spinning oriented nanofibers yarn in gas sensor》
In one text, the polyacrylonitrile of orientation is continuously prepared using improved electrostatic spinning apparatus（PAN）Nano-fibre yams, then by original
The method of position polymerization is respectively in the surface synthesis polypyrrole of PAN nano-fibre yams（PPy）Or polyaniline（PANI）, formation takes
To and PAN/PPy the and PAN/PANI Coaxial Nanofibers yarns that are evenly coated.It is fixed in interdigital electrode and makes gas
Quick element, has excellent susceptiveness, and which has good air-sensitive choosing to ammonia to ammonia, dichloromethane, ethanol and acetone
Selecting property.
The content of the invention
For the deficiencies in the prior art, the present invention provides a kind of composite fibre air-sensitive containing cerium-doped nanometer titanium dioxide
Material and preparation method thereof, improves sensing element to NH3、H2The susceptiveness of various toxic and harmfuls such as S, NO, and with compared with
High stability.
A kind of composite fibre gas sensitive containing cerium-doped nanometer titanium dioxide, is made up of the raw material of following weight portion：
Pyrrole monomer 35-50 parts, polyvinyl alcohol 16-24 parts, zinc nitrate 13-25 parts, DMF 40-55 parts, to toluene
Sulfonic acid 5-9 parts, ferric chloride 95-115 parts, copper nitrate 6-12 parts, appropriate deionized water, appropriate dehydrated alcohol, cerium chloride 3-6
Part, butyl titanate 5-10 parts, Fluohydric acid. 0.2-0.8 parts.
Step is as follows：
（1）Polyvinyl alcohol/zinc salt composite nano fiber：
Polyvinyl alcohol is added in DMF solvent, after its dissolving, zinc nitrate is added in liquid, by which
Mix homogeneously in constant temperature blender with magnetic force is placed on, solution is put and persistently stir at room temperature 20-24 hours to solution clear,
Polyvinyl alcohol/zinc salt precursor solution is obtained, precursor solution is carried out into injection electrostatic spinning then, obtain polyvinyl alcohol/zinc
Salt composite nano fiber；
（2）The preparation of zinc oxide nano fiber：
By step（1）The composite nano fiber of gained is calcined in being placed on Muffle furnace, according to the heating rate of 2-10 DEG C/min
500-600 DEG C is warming up to, then calcining at constant temperature 3-6 hour is cooled to room temperature, obtains zinc oxide nano fiber；
（3）The preparation of polypyrrole/zinc oxide compound nano fiber：
1., at room temperature, p-methyl benzenesulfonic acid is dissolved in deionized water, is configured to the p-methyl benzenesulfonic acid solution of 4mmol/L, it
It is slowly added dropwise pyrrole monomer afterwards thereto, is sufficiently stirred for 30-50 minutes, is set to solution A；Ferric chloride is dissolved in into deionization again
In aqueous solution, after stirring, solution B is set to；
2., B solution is added dropwise in solution A, solution is sufficiently stirred for into 20-40 minutes, afterwards by step（2）Zinc oxide nano
Rice fiber impregnation is placed under 0 DEG C of environment in the mixed solution, takes out nanofiber, use deionization after reaction 3-5 hours
Water and dehydrated alcohol are cleaned repeatedly, and 1-3 hours are dried in air dry oven, obtain polypyrrole/zinc oxide compound nano fiber；
（4）The composite nano-fiber material of Supported CuO：
By step（3）Gained composite nano fiber and copper nitrate are added in ethanol simultaneously, solution ultrasonic disperse 40-60 minutes,
Stand 2-3 hours afterwards, gained is deposited in 50-70 DEG C of drying, afterwards 500-600 DEG C in Muffle furnace at calcine 7-9 hours, from
The composite nano-fiber material that room temperature obtains final product Supported CuO is cooled to so；
（5）The preparation of gas sensitive：
1., butyl titanate is dissolved in dehydrated alcohol, is stirred 20-30 minutes under room temperature, add cerium chloride to continue stirring, afterwards
Be slowly added to Fluohydric acid., react 18-24 hours at 160-200 DEG C in a kettle., after being cooled to room temperature, deionized water and
After dehydrated alcohol centrifuge washing, it is vacuum dried at 40-60 DEG C, the nano-titanium dioxide powder of cerium dopping is obtained；
2., by step（4）The composite nano-fiber material of Supported CuO and ethanol are with 4:1 ratio is added in agate mortar, edge
Same direction uniformly to grind, be tuned into pasty state, add the nano-titanium dioxide powder of above-mentioned cerium dopping to continue 30-60 point of grinding
Clock, sinters 3-5 hours at 600-800 DEG C, obtains a kind of composite fibre air-sensitive material containing cerium-doped nanometer titanium dioxide
Material.
Wherein, described step（1）Injection electrostatic spinning comprise the following steps that：Precursor solution is added to into electrostatic
In the injection needle of device for spinning, syringe needle is connect into high-voltage power supply, then receiving terminal ground connection be 10kV-20kV in voltage, receive away from
Under the conditions of for 8cm-20cm, with micro pump with driving velocity 0.1ml/hr-1ml/hr, substrate is expelled to by injection apparatus
On carry out electrostatic spinning.
Compared with prior art, the invention has the advantages that：
（1）The present invention generates polyvinyl alcohol/zinc salt composite nano fiber in substrate using method of electrostatic spinning, then Jing calcinings are obtained
The netted and fibrous zinc oxide nano fiber material for coexisting, increases the surface area in zinc oxide nano fiber unit volume, it
Situ aggregation method is adopted afterwards, is prepared the surface that polypyrrole is evenly coated at zinc oxide nano fiber, is defined with zinc oxide fiber
For sandwich layer, the sandwich with polypyrrole as cortex so that the specific surface area of composite is significantly increased, and is given full play to
The advantage of polypyrrole, Zinc Oxide, improves composite to NH3、H2The susceptiveness of various toxic and harmfuls such as S, NO.
（2）The present invention obtains the composite nano-fiber material of Supported CuO using infiltration, calcining afterwards, increases compound fibre
Dimension material and the specific surface area of gas effect, and increased the avtive spot of material surface so that the sensitivity of material for gaseous
Increase, in addition when the material is exposed to containing H2When in S gaseous environments, can react in material surface, the CuO of semiconductor property
It is transformed into metallic conductor CuS so that the material resistance is greatly lowered, therefore the composite nano-fiber material of Supported CuO
To H2S has good selectivity and high sensitivity.
（3）Fully contacted with titanium dioxide due to growth in situ of the cerium on nano-titanium dioxide powder in the present invention,
Acted on using the metal surface plasma body of cerium, effectively increase the electron transmission ability and catalysis activity of gas sensitive, solved
Air-sensitive host material impedance changes and the technical problem of quick response with gas.
Specific embodiment
A kind of composite fibre gas sensitive containing cerium-doped nanometer titanium dioxide, is made up of the raw material of following weight portion：
45 parts of pyrrole monomer, 22 parts of polyvinyl alcohol, 20 parts of zinc nitrate, 53 parts of DMF, 7 parts of p-methyl benzenesulfonic acid, trichlorine
Change 110 parts of ferrum, 9 parts of copper nitrate, appropriate deionized water, appropriate dehydrated alcohol, cerium chloride 5, butyl titanate 8, Fluohydric acid. 0.6.
Step is as follows：
（1）Polyvinyl alcohol/zinc salt composite nano fiber：
Polyvinyl alcohol is added in DMF solvent, after its dissolving, zinc nitrate is added in liquid, by which
Mix homogeneously in constant temperature blender with magnetic force is placed on, solution is put and persistently stir at room temperature 22 hours to solution clear, obtain
To polyvinyl alcohol/zinc salt precursor solution, precursor solution is carried out into injection electrostatic spinning then, obtain polyvinyl alcohol/zinc salt
Composite nano fiber；
（2）The preparation of zinc oxide nano fiber：
By step（1）The composite nano fiber of gained is calcined in being placed on Muffle furnace, is heated up according to the heating rate of 5 DEG C/min
To 550 DEG C, then calcining at constant temperature 5 hours is cooled to room temperature, obtains zinc oxide nano fiber；
（3）The preparation of polypyrrole/zinc oxide compound nano fiber：
1., at room temperature, p-methyl benzenesulfonic acid is dissolved in deionized water, is configured to the p-methyl benzenesulfonic acid solution of 4mmol/L, it
It is slowly added dropwise pyrrole monomer afterwards thereto, is sufficiently stirred for 40 minutes, is set to solution A；Ferric chloride is dissolved in into deionized water again
In solution, after stirring, solution B is set to；
2., B solution is added dropwise in solution A, solution is sufficiently stirred for 35 minutes, afterwards by step（2）Zinc-oxide nano
Fiber impregnation is placed under 0 DEG C of environment in the mixed solution, reaction 4 hours after nanofiber is taken out, deionized water and
Dehydrated alcohol is cleaned repeatedly, is dried 2 hours, obtains polypyrrole/zinc oxide compound nano fiber in air dry oven；
（4）The composite nano-fiber material of Supported CuO：
By step（3）Gained composite nano fiber and copper nitrate are added in ethanol simultaneously, solution ultrasonic disperse 50 minutes, afterwards
2 hours are stood, gained is deposited in 60 DEG C of dryings, calcine 8 hours at 520 DEG C in Muffle furnace afterwards, naturally cool to room temperature i.e.
Obtain the composite nano-fiber material of Supported CuO；
（5）The preparation of gas sensitive：
1., butyl titanate is dissolved in dehydrated alcohol, is stirred 25 minutes under room temperature, add cerium chloride to continue stirring, Zhi Houhuan
It is slow to add Fluohydric acid., reacted at 180 DEG C in a kettle. 22 hours, after being cooled to room temperature, deionized water and dehydrated alcohol
After centrifuge washing, it is vacuum dried at 50 DEG C, the nano-titanium dioxide powder of cerium dopping is obtained；
2., by step（4）The composite nano-fiber material of Supported CuO and ethanol are with 4:1 ratio is added in agate mortar, edge
Same direction uniformly to grind, be tuned into pasty state, add the nano-titanium dioxide powder of above-mentioned cerium dopping to continue grinding 50 minutes,
Sinter 4 hours at 750 DEG C, obtain a kind of composite fibre gas sensitive containing cerium-doped nanometer titanium dioxide.
Wherein, described step（1）Injection electrostatic spinning comprise the following steps that：Precursor solution is added to into electrostatic
In the injection needle of device for spinning, syringe needle is connect into high-voltage power supply, then receiving terminal ground connection be 15kV in voltage, and receiving distance is
Under the conditions of 10cm, with micro pump with driving velocity 0.5ml/hr, being expelled in substrate by injection apparatus carries out electrostatic spinning.
Gas sensing property test is carried out under the conditions of 100 DEG C：
Sensitivity to 10ppm hydrogen sulfide gas is 425, response time：≤ 1min, recovery time：≤2min.
Claims (3)
1. a kind of composite fibre gas sensitive containing cerium-doped nanometer titanium dioxide, it is characterised in that by following weight portion
Raw material is constituted：Pyrrole monomer 35-50 parts, polyvinyl alcohol 16-24 parts, zinc nitrate 13-25 parts, DMF 40-55
Part, p-methyl benzenesulfonic acid 5-9 parts, ferric chloride 95-115 parts, copper nitrate 6-12 parts, appropriate deionized water, appropriate dehydrated alcohol, chlorine
Change cerium 3-6 parts, butyl titanate 5-10 parts, Fluohydric acid. 0.2-0.8 parts.
2. the preparation of a kind of composite fibre gas sensitive containing cerium-doped nanometer titanium dioxide according to claims 1
Method, it is characterised in that step is as follows：
（1）Polyvinyl alcohol/zinc salt composite nano fiber：
Polyvinyl alcohol is added in DMF solvent, after its dissolving, zinc nitrate is added in liquid, by which
Mix homogeneously in constant temperature blender with magnetic force is placed on, solution is put and persistently stir at room temperature 20-24 hours to solution clear,
Polyvinyl alcohol/zinc salt precursor solution is obtained, precursor solution is carried out into injection electrostatic spinning then, obtain polyvinyl alcohol/zinc
Salt composite nano fiber；
（2）The preparation of zinc oxide nano fiber：
By step（1）The composite nano fiber of gained is calcined in being placed on Muffle furnace, according to the heating rate of 2-10 DEG C/min
500-600 DEG C is warming up to, then calcining at constant temperature 3-6 hour is cooled to room temperature, obtains zinc oxide nano fiber；
（3）The preparation of polypyrrole/zinc oxide compound nano fiber：
1., at room temperature, p-methyl benzenesulfonic acid is dissolved in deionized water, is configured to the p-methyl benzenesulfonic acid solution of 4mmol/L, it
It is slowly added dropwise pyrrole monomer afterwards thereto, is sufficiently stirred for 30-50 minutes, is set to solution A；Ferric chloride is dissolved in into deionization again
In aqueous solution, after stirring, solution B is set to；
2., B solution is added dropwise in solution A, solution is sufficiently stirred for into 20-40 minutes, afterwards by step（2）Zinc oxide nano
Rice fiber impregnation is placed under 0 DEG C of environment in the mixed solution, takes out nanofiber, use deionization after reaction 3-5 hours
Water and dehydrated alcohol are cleaned repeatedly, and 1-3 hours are dried in air dry oven, obtain polypyrrole/zinc oxide compound nano fiber；
（4）The composite nano-fiber material of Supported CuO：
By step（3）Gained composite nano fiber and copper nitrate are added in ethanol simultaneously, solution ultrasonic disperse 40-60 minutes,
Stand 2-3 hours afterwards, gained is deposited in 50-70 DEG C of drying, afterwards 500-600 DEG C in Muffle furnace at calcine 7-9 hours, from
The composite nano-fiber material that room temperature obtains final product Supported CuO is cooled to so；
（5）The preparation of gas sensitive：
1., butyl titanate is dissolved in dehydrated alcohol, is stirred 20-30 minutes under room temperature, add cerium chloride to continue stirring, afterwards
Be slowly added to Fluohydric acid., react 18-24 hours at 160-200 DEG C in a kettle., after being cooled to room temperature, deionized water and
After dehydrated alcohol centrifuge washing, it is vacuum dried at 40-60 DEG C, the nano-titanium dioxide powder of cerium dopping is obtained；
2., by step（4）The composite nano-fiber material of Supported CuO and ethanol are with 4:1 ratio is added in agate mortar, edge
Same direction uniformly to grind, be tuned into pasty state, add the nano-titanium dioxide powder of above-mentioned cerium dopping to continue 30-60 point of grinding
Clock, sinters 3-5 hours at 600-800 DEG C, obtains a kind of composite fibre air-sensitive material containing cerium-doped nanometer titanium dioxide
Material.
3. the preparation of a kind of composite fibre gas sensitive containing cerium-doped nanometer titanium dioxide according to claims 2
Method, it is characterised in that described step（1）Injection electrostatic spinning comprise the following steps that：Precursor solution is added to
In the injection needle of electrostatic spinning apparatus, syringe needle is connect into high-voltage power supply, then receiving terminal ground connection be 10kV-20kV in voltage, connect
Distance is received, under the conditions of 8cm-20cm, with micro pump with driving velocity 0.1ml/hr-1ml/hr, to inject by injection apparatus
Electrostatic spinning is carried out in substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610988886.4A CN106567154A (en) | 2016-11-10 | 2016-11-10 | Composite fiber gas sensitive material containing cerium-doped nano TiO2 and preparation method of same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610988886.4A CN106567154A (en) | 2016-11-10 | 2016-11-10 | Composite fiber gas sensitive material containing cerium-doped nano TiO2 and preparation method of same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106567154A true CN106567154A (en) | 2017-04-19 |
Family
ID=58540975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610988886.4A Pending CN106567154A (en) | 2016-11-10 | 2016-11-10 | Composite fiber gas sensitive material containing cerium-doped nano TiO2 and preparation method of same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106567154A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918611A (en) * | 2018-06-06 | 2018-11-30 | 江西农业大学 | It is a kind of for detecting the electrode and preparation method thereof of coffee acid content |
| CN110721747A (en) * | 2019-10-18 | 2020-01-24 | 张贵勇 | Metal organic framework photocatalytic hydrogen production composite material and preparation method thereof |
| CN113754020A (en) * | 2020-06-02 | 2021-12-07 | 中国科学院城市环境研究所 | Adsorption enhanced electric Fenton cathode material and preparation method thereof |
| CN114507942A (en) * | 2022-03-04 | 2022-05-17 | 东南大学 | Preparation method of polyvinylidene fluoride nanofiber membrane regulated and controlled by mixed phase-change titanium dioxide |
| WO2022156353A1 (en) * | 2021-01-19 | 2022-07-28 | 潍坊歌尔微电子有限公司 | Gas sensor based on field effect transistor, and manufacturing method therefor |
| CN115352148A (en) * | 2022-10-17 | 2022-11-18 | 宁波时代铝箔科技股份有限公司 | Separable packaging material, preparation method thereof and packaging container |
| CN116328753A (en) * | 2023-02-16 | 2023-06-27 | 五邑大学 | TiO (titanium dioxide) 2 -CeO 2 Composite nano material and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101266225A (en) * | 2008-04-28 | 2008-09-17 | 吉林大学 | Electric spinning method for preparing high performance ceramic base nanometer fibre gas-sensitive sensor |
| CN105628745A (en) * | 2016-02-25 | 2016-06-01 | 济南大学 | Preparation method and application for nitrogen dioxide gas sensor based on titanium-dioxide-based porous nanocomposite |
| CN105717168A (en) * | 2016-02-25 | 2016-06-29 | 济南大学 | Preparation method and application of hydrogen sulfide gas sensor based on titanium dioxide nanosheet supported noble metal |
-
2016
- 2016-11-10 CN CN201610988886.4A patent/CN106567154A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101266225A (en) * | 2008-04-28 | 2008-09-17 | 吉林大学 | Electric spinning method for preparing high performance ceramic base nanometer fibre gas-sensitive sensor |
| CN105628745A (en) * | 2016-02-25 | 2016-06-01 | 济南大学 | Preparation method and application for nitrogen dioxide gas sensor based on titanium-dioxide-based porous nanocomposite |
| CN105717168A (en) * | 2016-02-25 | 2016-06-29 | 济南大学 | Preparation method and application of hydrogen sulfide gas sensor based on titanium dioxide nanosheet supported noble metal |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918611A (en) * | 2018-06-06 | 2018-11-30 | 江西农业大学 | It is a kind of for detecting the electrode and preparation method thereof of coffee acid content |
| CN108918611B (en) * | 2018-06-06 | 2020-05-05 | 江西农业大学 | Electrode for detecting caffeic acid content and preparation method thereof |
| CN110721747A (en) * | 2019-10-18 | 2020-01-24 | 张贵勇 | Metal organic framework photocatalytic hydrogen production composite material and preparation method thereof |
| CN113754020A (en) * | 2020-06-02 | 2021-12-07 | 中国科学院城市环境研究所 | Adsorption enhanced electric Fenton cathode material and preparation method thereof |
| CN113754020B (en) * | 2020-06-02 | 2023-05-30 | 中国科学院城市环境研究所 | Adsorption-enhanced electric Fenton cathode material and preparation method thereof |
| WO2022156353A1 (en) * | 2021-01-19 | 2022-07-28 | 潍坊歌尔微电子有限公司 | Gas sensor based on field effect transistor, and manufacturing method therefor |
| CN114507942A (en) * | 2022-03-04 | 2022-05-17 | 东南大学 | Preparation method of polyvinylidene fluoride nanofiber membrane regulated and controlled by mixed phase-change titanium dioxide |
| CN115352148A (en) * | 2022-10-17 | 2022-11-18 | 宁波时代铝箔科技股份有限公司 | Separable packaging material, preparation method thereof and packaging container |
| CN115352148B (en) * | 2022-10-17 | 2023-03-24 | 宁波时代铝箔科技股份有限公司 | Separable packaging material, preparation method thereof and packaging container |
| CN116328753A (en) * | 2023-02-16 | 2023-06-27 | 五邑大学 | TiO (titanium dioxide) 2 -CeO 2 Composite nano material and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106567154A (en) | Composite fiber gas sensitive material containing cerium-doped nano TiO2 and preparation method of same | |
| CN106498560A (en) | A kind of cotton fiber/electrostatic spinning nano fiber composite air-sensitive material and preparation method thereof | |
| CN106501323A (en) | A kind of composite nano fiber gas sensitive for multiple gases detection and preparation method thereof | |
| CN107159133B (en) | Magnetic covalent organic framework material and preparation method and application thereof | |
| CN111285671B (en) | Low-frequency wave-absorbing material and preparation method thereof | |
| CN105970606B (en) | Dacron high-frequency electromagnetic shielding coating adhesive and processing method | |
| CN104064363B (en) | 3D petal-shaped graphene-polyaniline super-capacitor electrode material and preparation method thereof | |
| CN105399151B (en) | A kind of preparation method of cobalt acid nickel nano material | |
| CN106145944A (en) | A kind of high connductivity, heat conduction and high strength carbon material film and preparation method thereof | |
| CN107604482B (en) | A kind of N doping porous filamentous nanocarbon and preparation method thereof | |
| CN103111274A (en) | Preparation method of graphene/TiO2 fiber | |
| CN110921721A (en) | Preparation and application of metal organic framework-derived bimetallic hydroxide | |
| CN106404847A (en) | Silicate mineral fiber/polypyrrole composite gas-sensitive material and preparation method thereof | |
| CN106501456A (en) | A kind of have supersensitive composite nano fiber gas sensitive and preparation method thereof | |
| CN106770492A (en) | A kind of composite nano fiber gas sensitive of Graphene doped stannum oxide modification and preparation method thereof | |
| CN106501324A (en) | A kind of composite nano fiber gas sensitive of load cadmium sulfide cladding CuO and preparation method thereof | |
| CN107436314A (en) | One kind is based on TiO2The moisture sensor of composite | |
| CN109095450A (en) | A kind of magnetic porous carbon particle of high-ratio surface and preparation method | |
| CN104923277B (en) | Ta3N5/Bi2WO6 heterojunction fiber photo-catalyst and preparation method therefor | |
| CN106757483A (en) | Standby electret PEI boehmite composite fibre filtering material of a kind of electro-spinning and preparation method thereof | |
| CN109665556A (en) | A kind of sea urchin shape copper oxide and its preparation method and application | |
| CN103011132B (en) | Preparation method of monodisperse carbon nano bowl | |
| CN110724492B (en) | Ferroferric oxide/nano oxide hybrid wave-absorbing material and preparation method thereof | |
| CN105869901B (en) | A kind of carbon nano-fiber composite material of structure-controllable and its preparation method and application | |
| CN110016734B (en) | Preparation method of near-infrared enhanced room-temperature gas sensing 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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170419 |