CN101718738B - NiAl-laminated type bimetal hydroxide/carbon nano-tube compound electrode as well as preparation method and application thereof - Google Patents
NiAl-laminated type bimetal hydroxide/carbon nano-tube compound electrode as well as preparation method and application thereof Download PDFInfo
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- CN101718738B CN101718738B CN 200910237468 CN200910237468A CN101718738B CN 101718738 B CN101718738 B CN 101718738B CN 200910237468 CN200910237468 CN 200910237468 CN 200910237468 A CN200910237468 A CN 200910237468A CN 101718738 B CN101718738 B CN 101718738B
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Abstract
The invention provides a NiAl-laminated type bimetal hydroxide/carbon nano-tube compound electrode, a preparation method thereof, and an application of the electrode to the electro-catalytic oxidation of glucose. In the electrode, a glassy carbon electrode is taken as a substrate electrode and coated with a layer of film of a NiAl-laminated type bimetal hydroxide/carbon nano-tube compound. The preparation method comprises the following steps of: enabling laminated type bimetal hydroxide to grow in-situ on the surface of carbon nano-tubes by adopting a coprecipitation method to obtain the laminated type bimetal hydroxide/carbon nano-tube compound; then dispersing the compound into a water solution to prepare a solution; dispensing the solution on the surface of the clean glassy carbon electrode; drying at room temperature to volatilize the solvent and obtain the electrode modified by the laminated type bimetal hydroxide/carbon nano-tube compound. The electrode can be used for the electro-catalytic oxidation of the glucose under an alkaline condition and has favorable electro-catalysis performance and stability with simple synthesis method, low cost and wide application prospect.
Description
Technical field
The invention belongs to the preparing technical field of electro catalytic electrode, relate to electrode that the NiAl-layered double hydroxide/carbon mano-tube composite is modified of a kind of high catalytic activity and preparation method thereof, and this electrode is used for catalytic oxidation glucose.
Technical background
21 century, diabetes became the health disease that people are concerned about, according to estimates by 2025, the population of worldwide suffering from diabetes will be present twice, reach 3,000,000,000 people, and therefore control and treatment diabetes are very important tasks.Mainly be the concentration that detects glucose in blood by development process, fluorescence method, Enzyme Electrode at present, reported it is to use Enzyme Electrode more.As everyone knows, enzyme has efficient, single-minded advantage, but simultaneously it exists also that catalytic activity is not high, poor stability, be subjected to the large shortcoming [E.Shoji, M.S.Freund, J.Am.Chem.Soc.2001,123,3383.] of variable effect of temperature and pH.Also the someone reports with platinum electrode and gold electrode electrooxidation glucose, but its catalytic activity and stability are not high, and expensive.Therefore exploring high catalytic activity, good stability, good reproducibility, highly sensitive, cheap electrode, to detect glucose be a very significant project.
Since being found in 1991, carbon nano-tube (CNTs) is because the concern that unique physicochemical characteristic and nanometer size effect enjoy people.Aspect compound substance, carbon nano-tube is the excellent carriers candidate material of compound substance because of the characteristics of its high-ratio surface, high mechanical properties, good stability.And studies show that carbon nano-tube can suppress the growth of crystal grain in the compound, and can also promote the electronics transmission of electroactive material in the compound.Therefore in recent years the carbon nano-tube base complex is used for the focus that the aspects such as catalysis, biology sensor, ultracapacitor, battery have become research.The people such as Peng [P.Peng, et al.Appl CatalA:Gen, 2007,321,190] are with RuO
2The nano particle uniform load so not only obtains the RuO of less particle diameter on carbon nano-tube
2, and it has showed very high catalytic activity and selectivity.At MnO
2In/CNTs the compound [Z.Fan, et al.Diam Relat Mater, 2006,15,1478], MnO
2Be wrapped in the CNTs surface, because carbon nano-tube can be accelerated the effect that electronics transmits, this compound system has showed and has has well discharged and recharged character, awaits developing into a kind of good ultracapacitor.In addition, Qu etc. find owing to the high physical strength of carbon nano-tube, Mg (OH)
2/ CNTs compound is a kind of good fire retardant [L.Ye, Q.Wu, et al.Polym Degrad Stabil, 2009,94,751] to halogen.
Layered double hydroxide (LDH) is a kind of anion type laminated inorganic functional material, and it is comprised of positively charged laminate and the negative ion and the water that are positioned at interlayer.Its chemical composition is [M
2+ 1-XM
3+ X(OH)
2]
X+(A
N-)
X/nMH
2O, wherein M
2+, M
3+Be divalence, trivalent metal cation; A
N-Be interlayer anion.Because the characteristics of the layer structure that layered double hydroxide forms is various, better crystallinity degree, specific surface area are large, special, be widely used in many functional materials [X.Xiang such as catalyzer, catalytic carrier, electrode material, adjuvant and medicinal slow release agent, Li F, et al.Chem Mater, 2008,20,1173].The layered double hydroxide that wherein contains variable valency metal ions also can be used for battery and electrode material, for example Ni base, basic, the Mn basic unit shape double-metal hydroxide of Co.Yet because the hydrogen bond action of nanometer size effect and layered double hydroxide intergranule, assemble so that mutually reunite between the layered duplex metal hydroxide nanometer particle, can cause like this that specific surface area is little, bad dispersibility, active site reduce, thereby affect its performance.In order to overcome this drawback, the present invention is take carbon nano-tube as carrier, utilize the electrostatic interaction between the carbon nano tube surface electronegative after the positively charged laminate of layered double hydroxide and the acid treatment, with NiAl-layered double hydroxide growth in situ in carbon nano tube surface, so not only because the carrier function of carbon nano-tube, improve the dispersiveness of layered double hydroxide particle, expose more electro catalytic activity center Ni
2+, and because carbon nano-tube can be accelerated the electronics transmission, be conducive to like this improve Ni
2+Electro catalytic activity.In addition, be wound in mutually cancellated characteristics between the carbon nano-tube, be conducive to layered double hydroxide in the stability of electrode surface.
Summary of the invention
The object of the invention is to provide electrode that the NiAl-layered double hydroxide/carbon mano-tube composite is modified of a kind of high catalytic activity and preparation method thereof, and this electrode is used for catalytic oxidation detection glucose.This electrode has that the preparation method is simple, catalytic activity is high, good stability, cheap characteristics.
The present invention is take carbon nano-tube as carrier, utilize the electrostatic interaction between the carbon nano tube surface electronegative after the positively charged laminate of layered double hydroxide and the acid treatment, method by co-precipitation with NiAl layered double hydroxide growth in situ in carbon nano tube surface, thereby obtain NiAl-layered double hydroxide/carbon mano-tube composite, then take glass-carbon electrode as basal electrode, this compound is dripped the glass-carbon electrode surface that is coated in cleaning make the electrode that NiAl-layered double hydroxide/carbon mano-tube composite is modified.This application of electrode is in catalytic oxidation glucose, and the result of electro-catalysis electric current shows that this electrode has good electrocatalysis characteristic.
The principle of this electrode catalytic oxidation glucose is to have oxidation state Ni in NiAl-layered double hydroxide/carbon mano-tube composite
2+, take it as catalyzer, being used for catalytic oxidation glucose (glucose) is gluconolactone (glucolactone).
Its reaction mechanism is:
LDH-Ni(II)+OH
sol-←→LDH(OH-)-Ni(III)+e
- (1)
LDH(OH-)-Ni(III)+Glucose→LDH-Ni(II)+Glucolactone (2)
Carbon nano-tube not only plays the effect of catalytic carrier in compound, improves the dispersiveness of layered double hydroxide, and because carbon nano-tube has good electric conductivity, can promote Ni
2+The electronics transmission, be conducive to like this improve the catalytic performance of catalyzer, the electro-catalysis electric current of its electro-catalysis D-Glucose is 25～65 μ A.And the network structure of carbon nano-tube can strengthen layered double hydroxide in the stability on basal electrode surface, and the electro-catalysis electric current is original 99.2～99.6% after continuous sweep 30 circle.The method of growth in situ is conducive to improve catalyzer in the stability of carrier surface, can find out that layered double hydroxide is dispersed in carbon nano tube surface from Electronic Speculum figure, and its particle size is about 10～18nm.The mass ratio of layered double hydroxide and carbon nano-tube is about 1.20～4.90: 1.In addition, not only reduce the cost of electrode preparation without catalytic oxidation glucose under the enzyme condition, and widened the scope of application of electrode.
The preparation method of this NiAl-layered double hydroxide/carbon nano-tube compound electrode is as follows:
A. with preparing Ni (NO in the ionized water
3)
2And Al (NO
3)
3Salt-mixture, Ni (NO wherein
3)
2Concentration be 0.10～0.80mol/L, Al (NO
3)
3Concentration be 0.05～0.20mol/L, Ni (NO
3)
2With Al (NO
3)
3Mol ratio be 2～4: 1; With deionized water preparation NaOH and Na
2CO
3Mixed-alkali, wherein the concentration of NaOH is 0.30～1.60mol/L, Na
2CO
3Concentration be 0.10～0.40mol/L; Be that the NaOH of 0.30～1.60mol/L is additional with the deionized water compound concentration in addition;
B. will join in the reaction vessel through acid-treated carbon nano-tube and above-mentioned mixed-alkali solution, wherein the concentration of carbon nano-tube in solution is 5～25mg/ml, ultrasonic dispersion 20～40min, get with the isopyknic above-mentioned mixing salt solution of mixed-alkali solution and be added drop-wise in the reaction vessel, drip simultaneously the NaOH make-up solution, the pH=9 of adjustment solution～11, until mixing salt solution dropwises, ultrasonic dispersion 20～40min again, it is 40～80 ℃ with the controlling crystallizing temperature, crystallization time is 3～24h, filter, extremely neutral with the deionized water washing leaching cake, dry 12～24h obtains NiAl-layered double hydroxide/carbon mano-tube composite in 60～80 ℃ of baking ovens;
The acid treatment step of carbon nano-tube is: be 60～100nm with diameter, length is that 5～15 μ m carbon nano-tube are added in 65% the red fuming nitric acid (RFNA), condensing reflux 3～10 hours, suction filtration after the cooling, to neutral, put into again dry 8～24h in 60～80 ℃ of baking ovens with the deionized water washing;
C. get step B and obtain compound and join in the ultrapure water, preparation compound solids content is the solution of 5～20mg/ml, magnetic agitation 2～5h at ambient temperature, with this solution by 0.35～1.42 μ l/mm
2Minim be coated in clean glass-carbon electrode surface, dry 2～6h all volatilizees solvent under the room temperature condition, form the film that one deck contains NiAl-layered double hydroxide/carbon mano-tube composite on the glass-carbon electrode surface, namely obtained NiAl-layered double hydroxide/carbon nano-tube compound electrode.
NiAl-layered double hydroxide/carbon mano-tube composite that step B is obtained characterizes, and the results are shown in Fig. 1-2.Obtain the particle size of layered double hydroxide on (110) direction according to the XRD spectra result of Fig. 1 and be about 8～20nm, the mass ratio of layered double hydroxide and carbon nano-tube is about 1.20～5.00: 1.As can be seen from Figure 2 layered double hydroxide is uniform and stable loads on carbon nano tube surface.
Carry out the experiment of catalytic oxidation glucose with the electrode that obtains, data see Table 1, and the result shows the electric current of its electro-catalysis up to 25～65 μ A, and this illustrates that this NiAl-layered double hydroxide/carbon mano-tube composite modified electrode has good electrocatalysis characteristic.And the electro-catalysis electric current is original 99.1～99.6% after continuous sweep 30 circle, shows that this NiAl-layered double hydroxide/carbon mano-tube composite modified electrode has good stability.
Effect of the present invention:
NiAl-layered double hydroxide/the carbon nano-tube compound electrode of the present invention's preparation owing to the carrier function of carbon nano-tube, has improved the dispersiveness of NiAl-layered double hydroxide, can expose more number of active center.And carbon nano-tube can promote the electronics transmission of electroactive material, is conducive to like this improve the electrocatalysis characteristic of NiAl-layered double hydroxide.Simultaneously because the reticulate texture of carbon nano-tube and do not introduce glucose oxidase, so that this NiAl-layered double hydroxide/carbon mano-tube composite modified electrode has good stability.In addition, this electrode also has preparation method's characteristics simple, with low cost.
Description of drawings
Fig. 1. be the XRD spectra of the layered double hydroxide/carbon mano-tube composite of embodiment 1 preparation.
Fig. 2. be the TEM spectrogram of the layered double hydroxide/carbon mano-tube composite of embodiment 1 preparation.
Embodiment
Embodiment 1
A. take by weighing the Ni (NO of 2.1810g
3)
26H
2Al (the NO of O and 0.9378g
3)
39H
2O is dissolved in deionized water preparation Ni (NO
3)
2And Al (NO
3)
3Salt-mixture, wherein Ni (NO
3)
2Concentration be 0.15mol/L, Al (NO
3)
3Concentration be 0.05mol/L; With NaOH and Na
2CO
3Be dissolved in deionized water preparation NaOH and Na
2CO
3Salt-mixture, wherein the concentration of NaOH is 0.32mol/L, Na
2CO
3Concentration be 0.10mol/L; Be that the NaOH of 0.32mol/L is additional with the deionized water compound concentration in addition;
B. the carbon nano-tube 0.5000g and the mixed-alkali 50ml that get after the acid treatment add in the reaction vessel simultaneously, the concentration that makes carbon nano-tube in the mixing is 10mg/ml, ultrasonic dispersion 30min, getting the 50ml salt-mixture is added drop-wise in this reaction vessel, and dripping NaOH replenishes, the pH=10.5 of control, until salt-mixture drip to finish after ultrasonic dispersion 30min again, reaction vessel is moved into the controlling crystallizing temperature is 60 ℃ in the water-bath, crystallization time is 6h, extremely neutral with the deionized water washing after reaction finishes, at last filter cake dry 12h in 60 ℃ of baking ovens can be obtained NiAl-layered double hydroxide/carbon mano-tube composite.
The characterization result of this compound is seen Fig. 1-2, and the XRD spectra result of Fig. 1 shows, obtains the particle size of layered double hydroxide on (110) direction and is about 17nm, and the mass ratio of layered double hydroxide and carbon nano-tube is about 1.92: 1.From the transmission electron microscope of Fig. 2 find out layered double hydroxide uniform and stable load on carbon nano tube surface.
C. get the above-mentioned compound that obtains of 0.10g and join in the 10ml ultrapure water, preparation compound solids content is the solution of 10mg/ml.Magnetic agitation 3h should press 0.71 μ l/mm at ambient temperature
2Minim be coated in clean glass-carbon electrode surface, dry 3h all volatilizees solvent at ambient temperature, form the film that one deck contains NiAl-layered double hydroxide/carbon mano-tube composite on the glass-carbon electrode surface, namely obtained the electrode that NiAl-layered double hydroxide/carbon mano-tube composite is modified.
Embodiment 2
A. prepare the several of same concentration and volume with embodiment 1;
Carbon nano-tube and the 50ml mixed-alkali of B. getting after the acid treatment join in the reaction vessel, wherein carbon nano-tube in concentration be 15mg/ml, behind the ultrasonic dispersion 30min, the salt-mixture of 50ml preparation is added drop-wise in this reaction vessel, and dripping NaOH replenishes, the pH=10.5 of control, until salt-mixture drip to finish after ultrasonic dispersion 30min again, reaction vessel is moved into the controlling crystallizing temperature is 60 ℃ in the water-bath, crystallization time is 6h, extremely neutral with the deionized water washing after reaction finishes, at last filter cake dry 12h in 60 ℃ of baking ovens can be obtained NiAl-layered double hydroxide/carbon mano-tube composite.
C. get the above-mentioned compound that obtains of 0.20g and join in the 10ml ultrapure water, preparation compound solids content is the solution of 20mg/ml.Magnetic agitation 3h should press 0.35 μ l/mm at ambient temperature
2Minim be coated in clean glass-carbon electrode surface, dry 3h all volatilizees solvent at ambient temperature, form the film that one deck contains NiAl-layered double hydroxide/carbon mano-tube composite on the glass-carbon electrode surface, namely obtained the electrode that NiAl-layered double hydroxide/carbon mano-tube composite is modified.
Embodiment 3
A. take by weighing the Ni (NO of 2.9080g
3)
26H
2Al (the NO of O and 1.8756g
3)
39H
2O is dissolved in deionized water preparation Ni (NO
3)
2And Al (NO
3)
3Salt-mixture, wherein Ni (NO
3)
2Concentration be 0.20mol/L, Al (NO
3)
3Concentration be 0.10mol/L; Take by weighing the NaOH of 0.9600g and the Na of 1.0598g
2CO
3Be dissolved in deionized water preparation NaOH and Na
2CO
3Salt-mixture, wherein the concentration of NaOH is 0.48mol/L, Na
2CO
3Concentration be 0.20mol/L; Be that the NaOH of 0.32mol/L is additional with the deionized water compound concentration in addition;
B. the carbon nano-tube after the acid treatment and 50ml mixed-alkali are joined in the reaction vessel, wherein carbon nano-tube in concentration be 10mg/ml, behind the ultrasonic dispersion 20min, the salt-mixture of 50ml preparation is added drop-wise in this reaction vessel, and dripping NaOH replenishes, the pH=9 of control, until salt-mixture drip to finish after ultrasonic dispersion 20min again, reaction vessel is moved into the controlling crystallizing temperature is 50 ℃ in the water-bath, crystallization time is 9h, extremely neutral with the deionized water washing after reaction finishes, at last filter cake dry 18h in 60 ℃ of baking ovens can be obtained NiAl-layered double hydroxide/carbon mano-tube composite.
C. get the above-mentioned compound that obtains of 0.20g and join in the 10ml ultrapure water, preparation compound solids content is the solution of 20mg/ml.Magnetic agitation 4h should press 0.35 μ l/mm at ambient temperature
2Minim be coated in clean glass-carbon electrode surface, dry 4h all volatilizees solvent at ambient temperature, form the film that one deck contains NiAl-layered double hydroxide/carbon mano-tube composite on the glass-carbon electrode surface, namely obtained the electrode that NiAl-layered double hydroxide/carbon mano-tube composite is modified.
Embodiment 4
A. take by weighing the Ni (NO of 5.8160g
3)
26H
2Al (the NO of O and 1.8756g
3)
39H
2O is dissolved in deionized water preparation Ni (NO
3)
2And Al (NO
3)
3Salt-mixture, wherein Ni (NO
3)
2Concentration be 0.40mol/L, Al (NO
3)
3Concentration be 0.10mol/L; Take by weighing the NaOH of 1.6000g and the Na of 1.0598g
2CO
3Be dissolved in deionized water preparation NaOH and Na
2CO
3Salt-mixture, wherein the concentration of NaOH is 0.80mol/L, Na
2CO
3Concentration be 0.20mol/L; Be that the NaOH of 0.32mol/L is additional with the deionized water compound concentration in addition;
Carbon nano-tube and the 50ml mixed-alkali of B. getting after the acid treatment join in the reaction vessel, wherein carbon nano-tube in concentration be 10mg/ml, behind the ultrasonic dispersion 20min, the salt-mixture of 50ml preparation is added drop-wise in this reaction vessel, and dripping NaOH replenishes, the pH=9 of control, until salt-mixture drip to finish after ultrasonic dispersion 20min again, reaction vessel is moved into the controlling crystallizing temperature is 50 ℃ in the water-bath, crystallization time is 9h, extremely neutral with the deionized water washing after reaction finishes, at last filter cake dry 18h in 60 ℃ of baking ovens can be obtained NiAl-layered double hydroxide/carbon mano-tube composite.
C. get the above-mentioned compound that obtains of 0.20g and join in the 10ml ultrapure water, preparation compound solids content is the solution of 20mg/ml.Magnetic agitation 4h should press 0.35 μ l/mm at ambient temperature
2Minim be coated in clean glass-carbon electrode surface, dry 4h all volatilizees solvent at ambient temperature, form the film that one deck contains NiAl-layered double hydroxide/carbon mano-tube composite on the glass-carbon electrode surface, namely obtained the electrode that NiAl-layered double hydroxide/carbon mano-tube composite is modified.
Embodiment 5
A. take by weighing the Ni (NO of 8.7240g
3)
26H
2Al (the NO of O and 3.7513g
3)
39H
2O is dissolved in deionized water preparation Ni (NO
3)
2And Al (NO
3)
3Salt-mixture, wherein Ni (NO
3)
2Concentration be 0.60mol/L, Al (NO
3)
3Concentration be 0.20mol/L; Take by weighing the NaOH of 2.5600g and the Na of 2.1198g
2CO
3Be dissolved in deionized water preparation NaOH and Na
2CO
3Salt-mixture, wherein the concentration of NaOH is 1.28mol/L, Na
2CO
3Concentration be 0.40mol/L; Be that the NaOH of 0.32mol/L is additional with the deionized water compound concentration in addition;
B. the carbon nano-tube after the acid treatment and 50ml mixed-alkali are joined in the reaction vessel, wherein carbon nano-tube in concentration be 25mg/ml, behind the ultrasonic dispersion 40min, the salt-mixture of 50ml preparation is added drop-wise in this reaction vessel, and dripping NaOH replenishes, the pH=11 of control, until salt-mixture drip to finish after ultrasonic dispersion 40min again, reaction vessel is moved into the controlling crystallizing temperature is 80 ℃ in the water-bath, crystallization time is 12h, extremely neutral with the deionized water washing after reaction finishes, at last filter cake dry 24h in 80 ℃ of baking ovens can be obtained NiAl-layered double hydroxide/carbon mano-tube composite.
C. get the above-mentioned compound that obtains of 0.05g and join in the 10ml ultrapure water, preparation compound solids content is the solution of 5mg/ml.Magnetic agitation 5h should press 1.41 μ l/mm at ambient temperature
2Minim be coated in clean glass-carbon electrode surface, dry 5h all volatilizees solvent at ambient temperature, form the film that one deck contains NiAl-layered double hydroxide/carbon mano-tube composite on the glass-carbon electrode surface, namely obtained the electrode that NiAl-layered double hydroxide/carbon mano-tube composite is modified.
Application examples
Take the combination electrode of embodiment 1-5 preparation as working electrode, take saturated calomel electrode as contrast electrode, platinum filament is to electrode, is 20 ± 1 ℃ in experimental temperature, test system is the NaOH electrolyte of 0.10mol/L, and catalytic oxidation concentration is the D-Glucose of 0.50～1.50mmol/L.The electric current that the result obtains its electro-catalysis is 25～65 μ A, and this illustrates that this composite electrode has good electrocatalysis characteristic to glucose oxidase.And the electro-catalysis electric current still is original 99.1～99.6% after continuous sweep 30 circle, shows that this composite electrode has good stability.The results are shown in table 1.
Table 1: composite electrode is to the electrocatalysis characteristic of glucose
| Concentration of glucose (μ A) | Electro-catalysis electric current (μ A) | Electric current conservation rate (%, 30 circles) | |
| Embodiment 1 | 1.50 | 29 | 99.2 |
| Embodiment 2 | 1.50 | 62 | 99.4 |
| Embodiment 3 | 0.50 | 40 | 99.5 |
| Embodiment 4 | 0.50 | 51 | 99.2 |
| Embodiment 5 | 1.00 | 58 | 99.3 |
Claims (3)
1. the preparation method of a NiAl-layered double hydroxide/carbon nano-tube compound electrode, concrete steps are as follows:
A. prepare Ni (NO with deionized water
3)
2And Al (NO
3)
3Mixing salt solution, Ni (NO wherein
3)
2Concentration be 0.10～0.80mol/L, Al (NO
3)
3Concentration be 0.05～0.20mol/L, Ni (NO
3)
2With Al (NO
3)
3Mol ratio be 2～4: 1; With deionized water preparation NaOH and Na
2CO
3Mixed-alkali solution, wherein the concentration of NaOH is 0.30～1.60mol/L, Na
2CO
3Concentration be 0.10～0.40mol/L; Be the NaOH make-up solution of 0.30～1.60mol/L with the deionized water compound concentration in addition;
B. will join in the reaction vessel through acid-treated carbon nano-tube and above-mentioned mixed-alkali solution, wherein the concentration of carbon nano-tube in solution is 5～25mg/ml, ultrasonic dispersion 20～40min, get with the isopyknic above-mentioned mixing salt solution of mixed-alkali solution and be added drop-wise in the reaction vessel, drip simultaneously the NaOH make-up solution, the pH=9 of adjustment solution～11, until mixing salt solution dropwises, ultrasonic dispersion 20～40min again, it is 40～80 ℃ with the controlling crystallizing temperature, crystallization time is 3～24h, filter, extremely neutral with the deionized water washing leaching cake, dry 12～24h obtains NiAl-layered double hydroxide/carbon mano-tube composite in 60～80 ℃ of baking ovens;
C. get step B and obtain compound and join in the ultrapure water, preparation compound solids content is the solution of 5～20mg/ml, magnetic agitation 2～5h at ambient temperature, with this solution by 0.35～1.42 μ l/mm
2Minim be coated in clean glass-carbon electrode surface, dry 2～6h all volatilizees solvent under the room temperature condition, form the film that one deck contains NiAl-layered double hydroxide/carbon mano-tube composite on the glass-carbon electrode surface, namely obtained NiAl-layered double hydroxide/carbon nano-tube compound electrode.
2. NiAl-layered double hydroxide/carbon nano-tube compound electrode by method claimed in claim 1 preparation, this electrode is the film that applies layer of Ni Al-layered double hydroxide/carbon mano-tube composite on the glass-carbon electrode surface.
3. as claimed in claim 2 application of NiAl-layered double hydroxide/carbon nano-tube compound electrode, with this application of electrode in catalytic oxidation glucose.
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| CN113102755B (en) * | 2021-04-25 | 2022-04-05 | 中国海洋大学 | Intermetallic compound-carbon nanotube porous composite material and preparation method thereof |
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| JP2004303613A (en) * | 2003-03-31 | 2004-10-28 | Mitsubishi Materials Corp | Negative electrode material, negative electrode using the same, and lithium ion secondary battery using the negative electrode |
| CN101414492A (en) * | 2007-05-25 | 2009-04-22 | 原子能委员会 | Electrolytic organic glass, its manufacturing method, and device including the glass |
| KR20090037564A (en) * | 2007-10-12 | 2009-04-16 | (주)태광테크 | Electric conductivity and anti-abrasion property excellent material and the manufacturing method thereof |
| CN101255544A (en) * | 2008-03-21 | 2008-09-03 | 中国科学院上海硅酸盐研究所 | Method for preparing nano metal or metal oxide/carbon nano-tube composite material |
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