CN103235010A - Water dispersible polyaniline/carbon nanotube composite resistive type film gas-sensitive element and preparation method thereof - Google Patents
Water dispersible polyaniline/carbon nanotube composite resistive type film gas-sensitive element and preparation method thereof Download PDFInfo
- Publication number
- CN103235010A CN103235010A CN2013101278058A CN201310127805A CN103235010A CN 103235010 A CN103235010 A CN 103235010A CN 2013101278058 A CN2013101278058 A CN 2013101278058A CN 201310127805 A CN201310127805 A CN 201310127805A CN 103235010 A CN103235010 A CN 103235010A
- Authority
- CN
- China
- Prior art keywords
- carbon nano
- polyaniline
- aqueous solution
- tube
- water dispersible
- 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
Abstract
The invention discloses a water dispersible polyaniline/carbon nanotube composite resistive type film gas-sensitive element and preparation method thereof, and the product is prepared by coating a layer of water dispersible polyaniline/carbon nanotube composite sensitive film on an interdigital gold electrode. The gas sensitive film is composed of polyaniline and carbon nanotube compound. The method has the advantages of simple preparation technology and mild condition, and the product is suitable for batch production. The prepared gas-sensitive element has the advantages of wide measurement scope of ammonia gas, high response sensitivity, good restorability, good linearity, room temperature detection, etc., and can be widely applied to room temperature accurate measurement of ammonia gas concentration in the industrial and agricultural production process and atmosphere environment.
Description
Technical field
The present invention relates to a kind of water dispersible polyaniline/carbon nano-tube composite resistance film gas sensor and preparation method thereof.
Background technology
In recent years, because more and more higher, therefore also more and more important to the research and development of gas sensor to the precision of gas sensor, performance, requirement aspect stable in fields such as commercial production, household safe, environmental monitoring and medical treatment.Along with the application of advanced science and technology, the trend of gas sensor development is microminiaturization, intellectuality and multifunction.Material is abundant, cost is low, filming technology is simple because the organic polymer sensitive material has, be easy to other technical compatibility, work at normal temperatures, can be to advantages such as microminiaturization, miniaturization development, become the focus of research, caused various countries scientist's extensive concern and attention.Polyaniline is as a kind of typical conducting polymer composite, low price, have high electric conductivity and reversible redox, doping and solution doping characteristic, it is the gas sensor response sensitivity height of sensitive material preparation with the polyaniline, selectivity ratios is better, have a good application prospect in the gas sensor field, development rapidly.Yet the polyaniline gas sensor also has its shortcoming, and long as turnaround time, reversibility is not good enough, and Polyaniline Processability can be poor, and these have all limited its further research and practical application.For this reason, the polyaniline composite material that can process of preparation is that the gas sensor of sensitive material has caused people's attention.Polyaniline and carbon nano-tube are carried out the water dispersible polyaniline/carbon nano tube compound material of compound preparation, can be in conjunction with polyaniline and carbon nano-tube (big specific surface area with its gas sensor as the sensitive material preparation, high conductivity) advantage, add fast-response and answer, improve response sensitivity simultaneously.
Summary of the invention
The purpose of this invention is to provide a kind of water dispersible polyaniline/carbon nano-tube composite resistance film gas sensor and preparation method thereof.
Water dispersible polyaniline of the present invention/carbon nano-tube composite resistance film gas sensor is connected with lead-in wire at interdigital gold electrode, is coated with air-sensitive film in interdigital gold electrode surfaces, and air-sensitive film is the compound of polyaniline and carbon nano-tube.
The method for making of water dispersible polyaniline/carbon nano-tube composite resistance film gas sensor may further comprise the steps:
1 cleans interdigital gold electrode, dry for standby.
The aqueous solution of 2 configuration polystyrolsulfon acids, wherein the molecular weight of polystyrolsulfon acid is 8000-100000, concentration is 0.5～10mg/mL.With carbon nano-tube ultrasonic dispersion 10～60min in above-mentioned aqueous solution, the mixed water that will add above-mentioned polystyrolsulfon acid and carbon nano-tube again through the aniline monomer of decompression distillation disperses in the liquid, consumption is to add carbon nano-tube 20～500mg in every premium on currency solution, aniline 4～25mL, stir 0.5～2h, obtain the A aqueous solution.Add the ammonium persulfate aqueous solution that concentration is 1～5mol/L then, the volume ratio of A aqueous solution and ammonium persulfate aqueous solution is 150: 1～50: 1, mixes reaction 5～12h at 0～5 ℃, obtains the aqueous solution of water dispersible polyaniline/carbon nano tube compound material.
3 with step 2) aqueous solution of polyaniline/carbon nano tube compound material is spun on the interdigital electrode surface, and dry back forms sensitive membrane, makes gas sensor, and the thickness of sensitive membrane is 2～50nm.
The interdigital width of above-mentioned interdigital gold electrode is 20～200 μ m, and interdigital gap is 20～200 μ m.
The present invention has the following advantages:
1) adopts the environmental protection approach, obtained the good polyaniline/carbon nano tube compound material of water dispersible, solved the unmanageable shortcoming of polyaniline, can utilize method such as spin coating to cover one deck polyaniline/carbon nano-tube coextruded film in interdigital gold electrode surfaces easily, preparation resistance type thin film gas sensor.
2) prepared water dispersible polyaniline/carbon nano tube compound material is to obtain by the carbon nano tube surface in-situ polymerization aniline of modifying at polystyrolsulfon acid, rather than the simple physics blend.Polystyrolsulfon acid not only can improve the aqueous dispersion performance of polyaniline/carbon nano tube compound material, the adulterant that can also serve as polyaniline, induce the polymerization of aniline to occur in carbon nano tube surface, can obtain the polyaniline/carbon nano tube compound material aqueous dispersions of stable uniform, thereby obviously improved the composite performance of polyaniline and carbon nano-tube, improved consistance, stability and the yield rate of gas sensor.
3) the gas sensitization film of Zhi Bei water dispersible polyaniline/carbon nano tube compound material formation has bigger serface, and thickness is thinner, is conducive to detect the scattering and permeating of gas, and ammonia is had higher sensitivity and response fast.
4) adopt spin-coating method to prepare gas sensor, simple and easy to do, be convenient to control thickness, the element high conformity, the yield rate height is suitable for producing in batches.
Gas sensor of the present invention has advantages such as volume is little, and cost is low, and is easy to use, can be widely used in commercial production, the environmental monitoring detection for ammonia.
Embodiment
Embodiment 1:
1 cleans interdigital gold electrode, dry for standby.
The aqueous solution of 2 configuration polystyrolsulfon acids, wherein the molecular weight of polystyrolsulfon acid is 80000, concentration is 2mg/mL.With carbon nano-tube ultrasonic dispersion 30min in above-mentioned aqueous solution, the mixed water that will add above-mentioned polystyrolsulfon acid and carbon nano-tube again through the aniline monomer of decompression distillation disperses in the liquid, and consumption is to add carbon nano-tube 100mg, aniline 15mL in every premium on currency solution, stir 1h, obtain the A aqueous solution.Add the ammonium persulfate aqueous solution that concentration is 2.5mol/L then, the volume ratio of A aqueous solution and ammonium persulfate aqueous solution is 100: 1, mixes reaction 8h at 0～5 ℃, obtains the aqueous solution of water dispersible polyaniline/carbon nano tube compound material.
3 with step 2) aqueous solution of polyaniline/carbon nano tube compound material is spun on the interdigital electrode surface, and dry back forms sensitive membrane, makes gas sensor, and the thickness of sensitive membrane is 2～50nm.
Claims (3)
1. water dispersible polyaniline/carbon nano-tube composite resistance film gas sensor, it is characterized in that: be connected with lead-in wire at interdigital gold electrode, be coated with air-sensitive film in interdigital gold electrode surfaces, air-sensitive film is the compound of polyaniline and carbon nano-tube.
2. a kind of water dispersible polyaniline according to claim 1/carbon nano-tube composite resistance film gas sensor, the interdigital width that it is characterized in that interdigital gold electrode is 20～200 μ m, interdigital gap is 20～200 μ m.
3. the method for making of a kind of water dispersible polyaniline according to claim 1/carbon nano-tube composite resistance film gas sensor is characterized in that:
1) cleans interdigital gold electrode, dry for standby.
2) aqueous solution of configuration polystyrolsulfon acid, wherein the molecular weight of polystyrolsulfon acid is 8000-100000, concentration is 0.5～10mg/mL.With carbon nano-tube ultrasonic dispersion 10～60min in above-mentioned aqueous solution, the mixed water that will add above-mentioned polystyrolsulfon acid and carbon nano-tube again through the aniline monomer of decompression distillation disperses in the liquid, consumption is to add carbon nano-tube 20～500mg in every premium on currency solution, aniline 4～25mL, stir 0.5～2h, obtain the A aqueous solution.Add the ammonium persulfate aqueous solution that concentration is 1～5mol/L then, the volume ratio of A aqueous solution and ammonium persulfate aqueous solution is 150: 1～50: 1, mixes reaction 5～12h at 0～5 ℃, obtains the aqueous solution of water dispersible polyaniline/carbon nano tube compound material.
3) with step 2) aqueous solution of polyaniline/carbon nano tube compound material is spun on the interdigital electrode surface, and dry back forms sensitive membrane, makes gas sensor, and the thickness of sensitive membrane is 2～50nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310127805.8A CN103235010B (en) | 2013-04-15 | 2013-04-15 | Water dispersible polyaniline/carbon nanotube composite resistive type film gas-sensitive element and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310127805.8A CN103235010B (en) | 2013-04-15 | 2013-04-15 | Water dispersible polyaniline/carbon nanotube composite resistive type film gas-sensitive element and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103235010A true CN103235010A (en) | 2013-08-07 |
| CN103235010B CN103235010B (en) | 2015-05-13 |
Family
ID=48883061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310127805.8A Expired - Fee Related CN103235010B (en) | 2013-04-15 | 2013-04-15 | Water dispersible polyaniline/carbon nanotube composite resistive type film gas-sensitive element and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103235010B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107674202A (en) * | 2017-10-14 | 2018-02-09 | 郑州炜盛电子科技有限公司 | Protonic acid doping polyaniline material and room temperature ammonia gas sensor and preparation method thereof |
| CN109030576A (en) * | 2018-06-28 | 2018-12-18 | 成都新柯力化工科技有限公司 | A kind of nitrogen dioxide gas electronic sensor material and preparation method |
| CN110128890A (en) * | 2019-06-04 | 2019-08-16 | 江南大学 | A kind of hydridization acrylic acid electrophoretic paint and preparation method thereof |
| CN112763548A (en) * | 2020-12-16 | 2021-05-07 | 北京无线电计量测试研究所 | Carbon monoxide detection method and system based on polymer composite film |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101042363A (en) * | 2007-04-27 | 2007-09-26 | 电子科技大学 | polyaniline nanometer oxidate compound film micro-gas sensors array and method for making same |
| CN101799441A (en) * | 2010-03-09 | 2010-08-11 | 浙江大学 | Polymer resistor type humidity element of water dispersion nano-polyaniline and manufacturing method thereof |
| CN101936937A (en) * | 2010-07-06 | 2011-01-05 | 电子科技大学 | Micro-cantilever gas sensor and manufacturing method thereof |
| KR20110116350A (en) * | 2010-04-19 | 2011-10-26 | 충남대학교산학협력단 | Gas sensor having chitosan filter-conducting polyaniline nanofiber composite and its fabrication method |
| KR20120016444A (en) * | 2010-08-16 | 2012-02-24 | 연세대학교 산학협력단 | Conducting polymer and carbon nanotubes composite based gas sensor fabrication method thereof |
| CN102636522A (en) * | 2012-03-29 | 2012-08-15 | 浙江大学 | Graphene/ stannic oxide nanometer compounding resistance type film gas sensor and manufacturing method thereof |
| CN102854226A (en) * | 2012-09-14 | 2013-01-02 | 济南大学 | Metal oxide/polyaniline composite resistor-type gas-sensitive element and preparation method thereof |
| CN102866181A (en) * | 2012-09-30 | 2013-01-09 | 浙江大学 | Polyaniline/ titanium dioxide nanometer composite impedance type thin film gas sensor and preparation method thereof |
-
2013
- 2013-04-15 CN CN201310127805.8A patent/CN103235010B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101042363A (en) * | 2007-04-27 | 2007-09-26 | 电子科技大学 | polyaniline nanometer oxidate compound film micro-gas sensors array and method for making same |
| CN101799441A (en) * | 2010-03-09 | 2010-08-11 | 浙江大学 | Polymer resistor type humidity element of water dispersion nano-polyaniline and manufacturing method thereof |
| KR20110116350A (en) * | 2010-04-19 | 2011-10-26 | 충남대학교산학협력단 | Gas sensor having chitosan filter-conducting polyaniline nanofiber composite and its fabrication method |
| CN101936937A (en) * | 2010-07-06 | 2011-01-05 | 电子科技大学 | Micro-cantilever gas sensor and manufacturing method thereof |
| KR20120016444A (en) * | 2010-08-16 | 2012-02-24 | 연세대학교 산학협력단 | Conducting polymer and carbon nanotubes composite based gas sensor fabrication method thereof |
| CN102636522A (en) * | 2012-03-29 | 2012-08-15 | 浙江大学 | Graphene/ stannic oxide nanometer compounding resistance type film gas sensor and manufacturing method thereof |
| CN102854226A (en) * | 2012-09-14 | 2013-01-02 | 济南大学 | Metal oxide/polyaniline composite resistor-type gas-sensitive element and preparation method thereof |
| CN102866181A (en) * | 2012-09-30 | 2013-01-09 | 浙江大学 | Polyaniline/ titanium dioxide nanometer composite impedance type thin film gas sensor and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 刘家安等: "低温聚苯胺/碳纳米管复合材料的制备", 《化工新型材料》, vol. 32, no. 5, 25 May 2004 (2004-05-25) * |
| 应邦育等: "纳米结构聚苯胺及其复合气敏材料研究进展", 《高分子材料科学与工程》, vol. 26, no. 4, 15 April 2010 (2010-04-15) * |
| 李春香等: "氨气检测的聚苯胺碳纳米管复合敏感膜的研究与应用_李春香[1]", 《传感技术学报》, vol. 25, no. 3, 15 March 2012 (2012-03-15) * |
| 杨亚杰: "导电聚合物纳米材料的制备及特性研究", 《中国博士学位论文全文数据库》, 17 March 2009 (2009-03-17) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107674202A (en) * | 2017-10-14 | 2018-02-09 | 郑州炜盛电子科技有限公司 | Protonic acid doping polyaniline material and room temperature ammonia gas sensor and preparation method thereof |
| CN109030576A (en) * | 2018-06-28 | 2018-12-18 | 成都新柯力化工科技有限公司 | A kind of nitrogen dioxide gas electronic sensor material and preparation method |
| CN110128890A (en) * | 2019-06-04 | 2019-08-16 | 江南大学 | A kind of hydridization acrylic acid electrophoretic paint and preparation method thereof |
| CN110128890B (en) * | 2019-06-04 | 2021-04-02 | 江南大学 | Hybrid acrylic acid electrophoretic coating and preparation method thereof |
| CN112763548A (en) * | 2020-12-16 | 2021-05-07 | 北京无线电计量测试研究所 | Carbon monoxide detection method and system based on polymer composite film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103235010B (en) | 2015-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109342522B (en) | Polypyrrole/graphene composite material-based resistance type NH3Sensor, preparation method and application thereof | |
| CN107607590B (en) | Based on the flower-shaped WO of PANI@3The flexible NH of sensitive material3Sensor and its application | |
| CN102866181A (en) | Polyaniline/ titanium dioxide nanometer composite impedance type thin film gas sensor and preparation method thereof | |
| CN106770497B (en) | One kind being based on Pt/ α-Fe2O3The acetone gas sensor and preparation method thereof of porous nanoparticles sensitive material | |
| CN103713019B (en) | Nano combined resistance type thin film gas sensor of zinc paste/polypyrrole and preparation method thereof | |
| CN102621206A (en) | Method for preparing poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) composite modified electrode | |
| CN109507272A (en) | A kind of NiCoLDH@Au composite material based on ZIF-67 synthesis and its application in glucose sensor | |
| CN106082181A (en) | A kind of gas sensitive compound with Graphene based on D π A structure organic molecule and preparation method thereof | |
| CN103235010B (en) | Water dispersible polyaniline/carbon nanotube composite resistive type film gas-sensitive element and preparation method thereof | |
| CN108956717A (en) | One kind being based on PANI@SnO2The flexible flat formula ammonia gas sensor of nano sensitive material and its application | |
| CN101776632B (en) | Water dispersible polyaniline nano-particle gas-sensitive element and method for preparing same | |
| CN109100397B (en) | Flexible planar ammonia gas sensor based on nano sensitive material and application thereof | |
| CN102323300A (en) | Polyelectrolyte and graphene composite resistive moisture sensor and manufacturing method thereof | |
| CN110192868B (en) | Flexible calcium potassium ion detection sensor based on graphene composite material and preparation method thereof | |
| He et al. | Facile fabrication of multi-hierarchical porous polyaniline composite as pressure sensor and gas sensor with adjustable sensitivity | |
| CN110749627A (en) | Flexible titanium carbide polyaniline gas sensing chip and preparation method and application thereof | |
| CN102279212A (en) | Resistive moisture sensor capable of measuring humidity of low-humidity environment and manufacturing method thereof | |
| CN101368925B (en) | Poly-pyrrole and metal nanometer particle composite gas sensor and preparation thereof | |
| CN102645461A (en) | Preparation method of electrochemical sensor based on polyaniline nanofiber | |
| CN112505106A (en) | Paper-based ethanol gas sensor | |
| CN105136869B (en) | Polyaniline/ferric oxide nano composite resistance type material sensors and preparation method thereof | |
| CN103058268B (en) | Synthetic method and application of SnO2 hollow nanospheres | |
| CN113155933B (en) | Graphene-molybdenum trioxide-based all-solid-state potassium ion selective electrode and preparation method and application thereof | |
| CN108459055A (en) | Polypyrrole surface modification silicon nanowires gas sensor and its application | |
| CN105806923B (en) | A kind of preparation method and application of the nano combined electrochemical sensing material of carbon nano-tube/titanic oxide/carboxymethyl chitosan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20160415 |