CN102175728A - Method for preparing nanometer Co-Fe prussian-blue complex-carbon nano tube composite hydrogen peroxide sensor - Google Patents
Method for preparing nanometer Co-Fe prussian-blue complex-carbon nano tube composite hydrogen peroxide sensor Download PDFInfo
- Publication number
- CN102175728A CN102175728A CN2011100205544A CN201110020554A CN102175728A CN 102175728 A CN102175728 A CN 102175728A CN 2011100205544 A CN2011100205544 A CN 2011100205544A CN 201110020554 A CN201110020554 A CN 201110020554A CN 102175728 A CN102175728 A CN 102175728A
- Authority
- CN
- China
- Prior art keywords
- nano
- blue complex
- prussian blue
- carbon nano
- preparation
- 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
Images
Abstract
The invention discloses a method for preparing a nanometer Co-Fe prussian-blue complex-carbon nano tube composite hydrogen peroxide sensor, which comprises the following steps of: a, preparing Co-Fe prussian-blue complex nano particles; b, performing surface pretreatment on a glassy carbon electrode; c, mixing the Co-Fe prussian-blue complex nano particles and an acidized multi-walled carbon nano tube ultrasonically for 30 to 60 minutes; and d, dropping and coating the ultrasonically-mixed solution in the step c on the glassy carbon electrode, and drying by using an infrared lamp to obtain the novel hydrogen peroxide sensor. In the nanometer Co-Fe prussian-blue complex-carbon nano tube composite hydrogen peroxide sensor prepared by the method, the linear range response to H2O2 is between 1 micrometer and 1.1 millimeters, the detection limit is 0.25 micrometer, and the sensitivity is 255 micro A mM<-1>cm<-2>, so the method is high in sensitivity and low in detection limit.
Description
Technical field
The present invention relates to a kind of preparation method of novel hydrogen peroxide sensor, relate in particular to the preparation method of the compound dioxygen water sensor of the Prussian blue complex-carbon nano-tube of a kind of nano Co-Fe.
Background technology
H
2O
2Used in a large number in fields such as weaving, papermaking, chemical industry, food, environmental protection and medicines, remain in the product inevitably or be discharged in the environment, but H
2O
2Be a kind of health to be had the chemical substance of harm so H
2O
2Sensitive Detection in industries such as food, medicine and weaving, all have crucial meaning.Because Electrochemical Detection has simply, fast, advantage such as cheapness, use superoxide enzyme modified electrode mensuration H
2O
2Method enjoy favor.But the poor stability of peroxidase, and easily come off from electrode, cause its application to be subjected to great restriction.
Discover that Prussian blue good media as electron transport can reduce the particularly overpotential of superoxide electrochemical reaction of redox material, be called as " artificial peroxidase ".Its modified electrode catalysis H
2O
2Oxidation and reduction reaction have the good and highly sensitive advantage of response, thereby be subjected to people's extensive concern.Now, people are with the Fe in Prussian blue
2+And Fe
3+Transition metal with other replaces, and has synthesized a large amount of prussian blue complexs.It is good that these prussian blue complexs also have an electrochemical reversibility, the low and stable high advantage of preparation cost, but with their as research of sensor report not also.
On the other hand, carbon nano-tube is a kind of novel 1-dimention nano material with carbon element.It has metallic conductivity along the pipe range direction, and has the effect that promotes electron transport, is often used as absorption carrier because of the big characteristic of its specific surface area simultaneously.
Summary of the invention
Of the present inventionly be intended to overcoming H in the past
2O
2Transducer sensitivity is poor, the shortcoming of detection limit for height, and the preparation method of the compound dioxygen water sensor of a kind of Prussian blue complex-carbon nano-tube of nano Co-Fe highly sensitive, that detectability is low is provided.
Technical scheme of the present invention is as follows:
The preparation method of the compound dioxygen water sensor of the Prussian blue complex-carbon nano-tube of a kind of nano Co-Fe comprises the steps:
A, the Prussian blue complex nano particle of preparation Co-Fe;
B, glass-carbon electrode is carried out surface preparation;
C, with the ultrasonic 30-60min that mixes of multi-walled carbon nano-tubes after Co-Fe prussian blue complex nano particle and the acidifying;
D, ultrasonic mixed drips of solution among the step c is coated on the glass-carbon electrode, after drying with infrared lamp, obtains novel hydrogen peroxide sensor.
The Prussian blue complex nanometer particle process method of described Co-Fe is as follows: with concentration is 0.03mol
L
-1CoCl
2Aqueous solution, surfactant and organic solvent are by weight CoCl
2Aqueous solution: surfactant: organic solvent=1.0235～4.5380:3.5562:13.8600 mix mixed liquor; After the liquid clarification to be mixed, in mixed liquor, add a kind of and K in CsCl solution or NaCl solution or the RbCl solution
3Fe (CN)
6Solution, under 25 ℃-60 ℃ of temperature, continuous stirring 5-12h fully reacts it, and ageing 5-12h promptly gets the Prussian blue complex nano particle of Co-Fe again.
Surface preparation described in the step b comprises the steps:
(1) with the Al of glass-carbon electrode with 0.05 μ m-1 μ m specification
2O
3The powder polishing is to minute surface occurring;
(2) the glass-carbon electrode deionized water drip washing after will polishing;
(3) glass-carbon electrode after the drip washing is immersed in 2-5min in the dilute sulfuric acid;
(4) use deionized water, alcohol flushing successively.
Further, described surfactant is selected from a kind of in 2-ethylhexyl succinate sodium sulfonate, cetyl trimethyl ammonium bromide or the Triton X-100.
Further, described organic solvent is selected from a kind of in isooctane or the cyclohexane.
The acidifying of the multi-walled carbon nano-tubes described in the step c comprises the steps:
(I) is that ultrasonic 30-60min gets the potpourri I in the nitration mixture of 3:1 with multi-walled carbon nano-tubes in sulfuric acid and nitric acid volume ratio;
(II) refluxes, stirs 4-8 h with the potpourri I and get the potpourri II under 80 ℃ of temperature;
(III) poured potpourri II cooling 40-60min in the redistilled water into to room temperature, leaves standstill 10-14h and gets the potpourri III;
(IV) carries out suction filtration with the potpourri III with miillpore filter, and washes repeatedly to neutrality with deionized water; At last with 80 ℃ of freeze-day with constant temperature 14h of product of suction filtration gained or 100 ℃ of freeze-day with constant temperature 2h to constant weight, pulverize.
Beneficial effect of the present invention is as follows:
Adopt transmission electron microscope, scanning electron microscope to characterize Co-Fe prussian blue complex, show that product is cube type particle of the 80-100nm of good dispersion.Itself and the compound novel hydrogen peroxide sensor of gained afterwards of multi-walled carbon nano-tubes are put into the mixed phosphate salt buffer that contains 0.5MKCl, employing electrochemical cyclic voltammetry scanning, the oxidation peak current of the observing Co-Fe prussian blue complex oxidation peak current during than its independent modified electrode has increased 10 times.In electrolytic solution, add H
2O
2After, oxidation current increases, and reduction current reduces, and the composite modified electrode that Co-Fe prussian blue complex and multi-walled carbon nano-tubes be described is catalysis H well
2O
2Oxidation.Scanning 100 circles in the mixed phosphate salt buffer of pH=5.8, the redox peak current changes little, this modified electrode stability is described better.We adopt potentiostatic method to do a series of experiment so that find out the best range of linearity, detectability, sensitivity in this experiment, provide six groups of data of experiment here, and are as shown in table 1.Wherein best result is that the composite modified electrode of Co-Fe prussian blue complex and multi-walled carbon nano-tubes is to H
2O
2The range of linearity of response is 1 μ M ~ 1.1mM, detects and is limited to 0.25 μ M, and sensitivity is 255 μ A
MM
-1 
Cm
-2, (detection that detects hydrogen peroxide is limited to 1 μ M, and sensitivity is 135 μ A with the data of bibliographical information Prussian blue (PB) modified glassy carbon
MM
-1 
Cm
-2) contrast, the compound dioxygen water sensor that shows Co-Fe prussian blue complex and multi-walled carbon nano-tubes has highly sensitive, the advantage that detectability is low.
Table 1
| NO. | The range of linearity (mM) | Detectability (μ M) | Sensitivity (μ A
  |
| 1 | 1.0×10 -3~1.10 | 0.25 | 255 |
| 2 | 1.2×10 -3~0.90 | 0.26 | 245 |
| 3 | 1.4×10 -3~0.94 | 0.27 | 237 |
| 4 | 1.6×10 -3~0.98 | 0.28 | 229 |
| 5 | 1.8×10 -3~1.00 | 0.29 | 221 |
| 6 | 2.0×10 -3~1.05 | 0.31 | 204 |
Description of drawings
Fig. 1 is the compound dioxygen water sensor of the Prussian blue complex-carbon nano-tube of the nano Co-Fe stereoscan photograph of preparation method's preparation of the present invention.
Embodiment
Embodiment 1:
(1) preparation of Co-Fe prussian blue complex nano particle: at the 20mL(13.86 gram) behind the 2-ethylhexyl succinate sodium sulfonates that adding 3.55 restrains in the isooctane (perhaps cyclohexane) (cetyl trimethyl ammonium bromide or Triton X-100), adding 4.5336g concentration again is 0.03mol
L
-1CoCl
2Solution stirs to clarify; Dripping 1.9426g concentration with micro syringe is 0.014mol
L
-1K
3Fe (CN)
6With concentration be 0.006 mol
L
-1CsCl solution, dripping speed is 20 μ L/min; Constant temperature magnetic agitation 11h, ageing 11h; Successively with ethanol water, absolute ethyl alcohol repeatedly centrifuge washing divide lively stock to obtain Co-Fe prussian blue complex nano particle with ethanol at last to remove impurity.
(2) surface preparation of glass-carbon electrode: at first be that the glass-carbon electrode of 3mm is immersed in the dilute sulfuric acid and activates with diameter, spend again from.
(3) the Co-Fe prussian blue complex nano particle that makes in the step (1) is mixed with the ultrasonic 50min of the multi-walled carbon nano-tubes of acidifying mixed liquor.
(4) drip 8 μ L mixed liquors with micro syringe and arrive pretreated glass-carbon electrode surface in the step (2), dry, promptly get sensor of the present invention with infrared lamp.
Claims (6)
1. the preparation method of the compound dioxygen water sensor of the Prussian blue complex-carbon nano-tube of nano Co-Fe is characterized in that, comprises the steps:
A, the Prussian blue complex nano particle of preparation Co-Fe;
B, glass-carbon electrode is carried out surface preparation;
C, with the ultrasonic 30-60min that mixes of multi-walled carbon nano-tubes after Co-Fe prussian blue complex nano particle and the acidifying;
D, ultrasonic mixed drips of solution among the step c is coated on the glass-carbon electrode, after drying with infrared lamp, obtains novel hydrogen peroxide sensor.
2. the preparation method of the compound dioxygen water sensor of the Prussian blue complex-carbon nano-tube of nano Co-Fe according to claim 1 is characterized in that, the Prussian blue complex nanometer particle process method of described Co-Fe is as follows: with concentration is 0.03mol
L
-1CoCl
2Aqueous solution, surfactant and organic solvent are by weight CoCl
2Aqueous solution: surfactant: organic solvent=1.0235～4.5380:3.5562:13.8600 mix mixed liquor; After the liquid clarification to be mixed, in mixed liquor, add a kind of and K in CsCl solution or NaCl solution or the RbCl solution
3Fe (CN)
6Solution, under 25 ℃-60 ℃ of temperature, continuous stirring 5-12h fully reacts it, and ageing 5-12h promptly gets the Prussian blue complex nano particle of Co-Fe again.
3. the preparation method of the compound dioxygen water sensor of the Prussian blue complex-carbon nano-tube of nano Co-Fe according to claim 2 is characterized in that the surface preparation described in the step b comprises the steps:
(1) with the Al of glass-carbon electrode with 0.05 μ m-1 μ m specification
2O
3The powder polishing is to minute surface occurring;
(2) the glass-carbon electrode deionized water drip washing after will polishing;
(3) glass-carbon electrode after the drip washing is immersed in 2-5min in the dilute sulfuric acid;
(4) use deionized water, alcohol flushing successively.
4. the preparation method of the compound dioxygen water sensor of the Prussian blue complex-carbon nano-tube of nano Co-Fe according to claim 2, it is characterized in that described surfactant is selected from a kind of in 2-ethylhexyl succinate sodium sulfonate, cetyl trimethyl ammonium bromide or the Triton X-100.
5. the preparation method of the compound dioxygen water sensor of the Prussian blue complex-carbon nano-tube of nano Co-Fe according to claim 4 is characterized in that, described organic solvent is selected from a kind of in isooctane or the cyclohexane.
6. according to the preparation method of claim 1 or the compound dioxygen water sensor of 2 or 3 or the 4 or 5 Prussian blue complex-carbon nano-tube of described nano Co-Fe, it is characterized in that the acidifying of the multi-walled carbon nano-tubes described in the step c comprises the steps:
(I) is that ultrasonic 30-60min gets the potpourri I in the nitration mixture of 3:1 with multi-walled carbon nano-tubes in sulfuric acid and nitric acid volume ratio;
(II) refluxes, stirs 4-8 h with the potpourri I and get the potpourri II under 80 ℃ of temperature;
(III) poured potpourri II cooling 40-60min in the redistilled water into to room temperature, leaves standstill 10-14h and gets the potpourri III;
(IV) carries out suction filtration with the potpourri III with miillpore filter, and washes repeatedly to neutrality with deionized water; At last with 80 ℃ of freeze-day with constant temperature 14h of product of suction filtration gained or 100 ℃ of freeze-day with constant temperature 2h to constant weight, pulverize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100205544A CN102175728A (en) | 2011-01-18 | 2011-01-18 | Method for preparing nanometer Co-Fe prussian-blue complex-carbon nano tube composite hydrogen peroxide sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100205544A CN102175728A (en) | 2011-01-18 | 2011-01-18 | Method for preparing nanometer Co-Fe prussian-blue complex-carbon nano tube composite hydrogen peroxide sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102175728A true CN102175728A (en) | 2011-09-07 |
Family
ID=44518933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100205544A Pending CN102175728A (en) | 2011-01-18 | 2011-01-18 | Method for preparing nanometer Co-Fe prussian-blue complex-carbon nano tube composite hydrogen peroxide sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102175728A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539510A (en) * | 2012-01-11 | 2012-07-04 | 上海大学 | Method for determining hydrogen peroxide by using nickel lanthanum titanate/cobalt ferrite modified glassy carbon electrode |
| CN103193219A (en) * | 2013-04-09 | 2013-07-10 | 江西师范大学 | Method for preparing three-dimensional order porous carbon/Prussian blue nanocomposite |
| CN103983680A (en) * | 2014-04-29 | 2014-08-13 | 浙江大学 | Novel hydrogen peroxide electrochemical sensor |
| CN106674532A (en) * | 2015-11-05 | 2017-05-17 | 中国科学院大连化学物理研究所 | Synthetic method of AyB1-y[Co(CN)6]0.67PBA and AxB1.8-xCo1.2O4 |
| CN106823014A (en) * | 2016-12-29 | 2017-06-13 | 复旦大学附属中山医院 | Implantable biodegradable microporous alumina retort stand |
| CN107195876A (en) * | 2017-04-27 | 2017-09-22 | 华中科技大学 | The preparation method and sodium-ion battery of a kind of Nanoscale Iron selenium sulfide |
| CN109444238A (en) * | 2018-11-23 | 2019-03-08 | 杭州电子科技大学 | A kind of preparation method and application of the electrochemical sensor of carbon nanomaterial modification |
| CN110412098A (en) * | 2019-08-23 | 2019-11-05 | 衡阳师范学院 | Prussian blue similar object material of a kind of flower ball-shaped Mn-Fe and the preparation method and application thereof |
| CN110459740A (en) * | 2019-07-16 | 2019-11-15 | 五邑大学 | A kind of carbon nanotube cladding cobalt oxide material and its preparation method and application |
| CN110571430A (en) * | 2019-08-16 | 2019-12-13 | 五邑大学 | Co3O4Preparation method and application of/carbon nano tube |
| CN113092566A (en) * | 2021-03-12 | 2021-07-09 | 华东师范大学 | Cellulose acetate compound and preparation method and application thereof |
-
2011
- 2011-01-18 CN CN2011100205544A patent/CN102175728A/en active Pending
Non-Patent Citations (7)
| Title |
|---|
| DAN DU ET AL: "One-step electrochemical deposition of Prussian Blue–multiwalled carbon nanotube nanocomposite thin-film:preparation,characterization and evaluation for H2O2 sensing", 《J.MATER.CHEM.》 * |
| DAN DU ET AL: "One-step electrochemical deposition of Prussian Blue–multiwalled carbon nanotube nanocomposite thin-film:preparation,characterization and evaluation for H2O2 sensing", 《J.MATER.CHEM.》, vol. 20, 24 December 2009 (2009-12-24) * |
| MARIO BERRETTONI ET AL: "Synthesis and Characterization of Nanostructured Cobalt Hexacyanoferrate", 《J.PHYS.CHEM.C》 * |
| NA ZHANG ET AL: "Fabrication of prussian blue/multi-walled carbon nanotubes modified electrode for electrochemical sensing of hydroxylamine", 《MICROCHIM ACTA》 * |
| 徐建锋: "AOT微乳液体系中Co-Fe普鲁士蓝类配合物磁性纳米材料的制备及性质研究", 《中国优秀硕士学位论文全文数据库（工程科技Ⅰ辑）》 * |
| 李丽花 等: "普鲁士蓝-多壁碳纳米管复合材料修饰电极测定过氧化氢", 《分析化学研究报告》 * |
| 黄英强 等: "普鲁士蓝类纳米粒子的合成及其在双氧水检测中的应用", 《广东化工》 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539510A (en) * | 2012-01-11 | 2012-07-04 | 上海大学 | Method for determining hydrogen peroxide by using nickel lanthanum titanate/cobalt ferrite modified glassy carbon electrode |
| CN103193219A (en) * | 2013-04-09 | 2013-07-10 | 江西师范大学 | Method for preparing three-dimensional order porous carbon/Prussian blue nanocomposite |
| CN103193219B (en) * | 2013-04-09 | 2015-05-13 | 江西师范大学 | Method for preparing three-dimensional order porous carbon/Prussian blue nanocomposite |
| CN103983680A (en) * | 2014-04-29 | 2014-08-13 | 浙江大学 | Novel hydrogen peroxide electrochemical sensor |
| CN103983680B (en) * | 2014-04-29 | 2016-05-18 | 浙江大学 | A kind of novel hydrogen peroxide electrochemical sensor |
| CN106674532B (en) * | 2015-11-05 | 2019-07-02 | 中国科学院大连化学物理研究所 | A kind of AyB1-y[Co(CN)6]0.67PBA and AxB1.8-xCo1.2O4Synthetic method |
| CN106674532A (en) * | 2015-11-05 | 2017-05-17 | 中国科学院大连化学物理研究所 | Synthetic method of AyB1-y[Co(CN)6]0.67PBA and AxB1.8-xCo1.2O4 |
| CN106823014A (en) * | 2016-12-29 | 2017-06-13 | 复旦大学附属中山医院 | Implantable biodegradable microporous alumina retort stand |
| CN107195876A (en) * | 2017-04-27 | 2017-09-22 | 华中科技大学 | The preparation method and sodium-ion battery of a kind of Nanoscale Iron selenium sulfide |
| CN109444238A (en) * | 2018-11-23 | 2019-03-08 | 杭州电子科技大学 | A kind of preparation method and application of the electrochemical sensor of carbon nanomaterial modification |
| CN109444238B (en) * | 2018-11-23 | 2021-02-02 | 杭州电子科技大学 | Preparation method and application of carbon nano material modified electrochemical sensor |
| CN110459740A (en) * | 2019-07-16 | 2019-11-15 | 五邑大学 | A kind of carbon nanotube cladding cobalt oxide material and its preparation method and application |
| CN110459740B (en) * | 2019-07-16 | 2022-06-24 | 五邑大学 | Carbon nanotube coated cobalt oxide material and preparation method and application thereof |
| CN110571430A (en) * | 2019-08-16 | 2019-12-13 | 五邑大学 | Co3O4Preparation method and application of/carbon nano tube |
| CN110571430B (en) * | 2019-08-16 | 2022-08-09 | 五邑大学 | Preparation method and application of Co3O 4/carbon nanotube |
| CN110412098A (en) * | 2019-08-23 | 2019-11-05 | 衡阳师范学院 | Prussian blue similar object material of a kind of flower ball-shaped Mn-Fe and the preparation method and application thereof |
| CN110412098B (en) * | 2019-08-23 | 2022-02-01 | 衡阳师范学院 | Flower-ball-shaped Mn-Fe Prussian blue analogue material and preparation method and application thereof |
| CN113092566A (en) * | 2021-03-12 | 2021-07-09 | 华东师范大学 | Cellulose acetate compound and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102175728A (en) | Method for preparing nanometer Co-Fe prussian-blue complex-carbon nano tube composite hydrogen peroxide sensor | |
| Tu et al. | Mxene/carbon nanohorn/β-cyclodextrin-Metal-organic frameworks as high-performance electrochemical sensing platform for sensitive detection of carbendazim pesticide | |
| Han et al. | Leaf-templated synthesis of 3D hierarchical porous cobalt oxide nanostructure as direct electrochemical biosensing interface with enhanced electrocatalysis | |
| Chen et al. | In situ growth of FeOOH nanoparticles on physically-exfoliated graphene nanosheets as high performance H2O2 electrochemical sensor | |
| CN103018304B (en) | Glass-carbon electrode that a kind of nickel oxide-graphene nano material is modified and its preparation method and application | |
| CN105136885B (en) | A kind of preparation and application of Prussian blue/N doping carbon nano-composite materials | |
| CN103575771B (en) | A kind of gas sensor and preparation method thereof | |
| CN102590305A (en) | Sensitive membrane for electrochemical biosensors and preparation method thereof | |
| CN104007153B (en) | A kind of fast high-sensitive detects electrochemical luminous sensor of bagodryl hydrochloride and preparation method thereof | |
| CN102175735A (en) | Au NPs-CeO2@PANI (polyaniline) nanocomposite, preparation method thereof and glucose biological sensor manufactured by utilizing nanocomposite | |
| CN105628764A (en) | Uric acid detection electrochemical sensor and preparation and application thereof | |
| CN108535343A (en) | The preparation method and applications of methylene blue-gold composite nano particle modified electrode | |
| Ikram et al. | Recent advances in chitin and chitosan/graphene-based bio-nanocomposites for energetic applications | |
| CN103207224A (en) | Electrochemical biosensor electrode for detection of hydrogen peroxide and preparation method thereof | |
| CN104312588A (en) | Preparation method of selenium-doped carbon quantum dots | |
| CN104022291A (en) | Microbial fuel cell, cathode, cathode catalyst and preparation methods thereof | |
| CN107694570A (en) | A kind of preparation method of efficiently cobaltosic oxide graphene nano composite catalyst | |
| CN105241869A (en) | Bisphenol A electrochemiluminescent aptamer sensor based on upper conversion nano material | |
| Bahartan et al. | Encapsulation of yeast displaying glucose oxidase on their surface in graphene oxide hydrogel scaffolding and its bioactivation | |
| Vilian et al. | Polypyrrole-MXene supported gold nanoparticles for the trace-level detection of nitrofurantoin | |
| Chai et al. | Highly sensitive electrochemical sensor based on PEDOT: PSS-β-CD-SWCNT-COOH modified glassy carbon electrode enables trace analysis shikonin | |
| Hassanzadeh et al. | Selective electrochemical sensing of dopamine and ascorbic acid using carbon paste electrode modified with cobalt Schiff Base complex and a surfactant | |
| Zhang et al. | A novel electrochemical sensor based on mesoporous carbon hollow spheres/ZIF-67-derived Co-embedded N-doped carbon nanotubes composite for simultaneous determination of dihydroxybenzene isomers in environmental water samples | |
| Ramesh et al. | Sustainable and renewable nano-biocomposites for sensors and actuators: A review on preparation and performance | |
| CN110361431A (en) | A kind of combination electrode and preparation method thereof and method for ammonia nitrogen detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110907 |