CN110415857A - A kind of Nitrogen-rich porous carbon is the electrochemical actuator and preparation method thereof of electrode - Google Patents

A kind of Nitrogen-rich porous carbon is the electrochemical actuator and preparation method thereof of electrode Download PDF

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CN110415857A
CN110415857A CN201910667088.5A CN201910667088A CN110415857A CN 110415857 A CN110415857 A CN 110415857A CN 201910667088 A CN201910667088 A CN 201910667088A CN 110415857 A CN110415857 A CN 110415857A
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nitrogen
electrode
porous carbon
zif
rich porous
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陈�田
路方舟
向凯
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Nanjing University of Aeronautics and Astronautics
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Nanjing University of Aeronautics and Astronautics
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/04Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of carbon-silicon compounds, carbon or silicon
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/06Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
    • H01B1/12Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances organic substances
    • H01B1/124Intrinsically conductive polymers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/06Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
    • H01B1/12Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances organic substances
    • H01B1/124Intrinsically conductive polymers
    • H01B1/127Intrinsically conductive polymers comprising five-membered aromatic rings in the main chain, e.g. polypyrroles, polythiophenes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N11/00Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
    • H02N11/006Motors

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Abstract

The invention discloses the electrochemical actuators that a kind of Nitrogen-rich porous carbon is electrode, belong to electrochemical actuator technical field, electrochemical actuator of the invention includes first electrode layer, electrolyte layer and the second electrode lay three-decker;The electrolyte layer upper and lower surface adhesive electrodes layer;The electrode layer includes the Nitrogen-rich porous carbon material and conducting polymer of zeolite imidazole ester metal-organic framework, and the electrolyte layer includes ionic liquid and macromolecule matrix material.The invention also discloses the preparation methods of this electrochemical actuator, and the preparation method is simple, and the electrochemical actuator electromechanical of preparation is had excellent performance, the fields such as artificial-muscle, bionic soft robot with good application prospect.

Description

A kind of Nitrogen-rich porous carbon is the electrochemical actuator and preparation method thereof of electrode
Technical field
The invention belongs to electrochemical actuator technical field, specifically a kind of Nitrogen-rich porous carbon is that the electrochemistry of electrode drives Device and preparation method thereof.
Background technique
Electroactive polymer (Electro-active polymer, EAP) is a kind of intellectual material, has special machine Electric conversion properties.Electroactive polymer it is most common using it first is that the exploitation of artificial-muscle in robotics.Therefore, electric Living polymer is also commonly used as the synonym of artificial-muscle.According to the difference of the mechanism of action, electroactive polymer is broadly divided into Electron type and ionic two major classes.Wherein, ionic electroactive polymer include ionic polymer metal composite material, it is conductive poly- Close (the progress of Wang Lan, Zhao Shujin, Wang Haiyan, Dang Zhimin electroactive polymer such as object, polymer gel, carbon nanotube Rare Metals Materials and engineering, 2005,34,728-733).Ionic electroactive polymer material is led to based on electrochemical principle It crosses electrochemical machinery effect and causes macroscopic deformation caused by the migration of ion, be also generally referred to as electrochemical actuator.
Ionic polymer metal composite material (Ionic polymer metal composite, IPMC) is this kind of classical Electrochemical actuator mainly be combined by amberplex and noble metal by chemical plating method, bio-robot, The fields such as biomedical engineering, microfluidic control have obtained many achievements.Traditional IP MC driver because use noble metal electrode, Expensive, rigid metal electrode cycle uses easy to crack, the more dependence water of working environment, therefore, the nonmetallic electricity of flexibility of research and development Stablizing the driver activated in pole material and air is the significant challenge that the field is faced.Stablize actuating in air in recent years Electrochemical actuator start to grow up (Wu Guan, Hu Ying, Chen Wei carbon nanotube and graphene artificial-muscle Science Bulletin, 2014,59,2240-2252).Its actuating performance of this driver is mainly determined by the microstructure of electrode layer and chemical property etc. It is fixed, so electrode material and structure are particularly critical for the performance for improving electrochemical actuator.
Summary of the invention
The technical problem to be solved in the present invention is to provide electrochemical actuators and its system that a kind of Nitrogen-rich porous carbon is electrode Preparation Method, to overcome deficiency in the prior art, the non-metal electrode of electrochemical actuator prepared by the present invention it is not only flexible but also Have high capacitance, drive performance is excellent, flexible drive, flexible sensing and in terms of have wide answer Use prospect.
The present invention is implemented as follows:
A kind of Nitrogen-rich porous carbon is the electrochemical actuator of electrode, which is characterized in that the electrochemical actuator is electrode layer And the three-decker of electrolyte layer composition, the three-decker includes first electrode layer, electrolyte layer and the second electrode lay; The electrolyte layer upper and lower surface adhesive electrodes layer;The electrode layer includes Nitrogen-rich porous carbon and conducting polymer preparation; The Nitrogen-rich porous carbon is prepared by the pyrolysis of zeolite imidazole ester metal organic frame;The conducting polymer is poly- (3,4- second Alkenyl dioxy thiophene)-poly- (styrene sulfonic acid), i.e. PEDOT:PSS.The present invention provides a kind of flexible non-metallic electrodes, include The Nitrogen-rich porous carbon material and PEDOT:PSS of the ZIF structure.
Further, the electrolyte layer includes macromolecule matrix material and ionic liquid;The basis material uses The preparation of one or more of polyurethane, Kynoar or chitosan material;The ionic liquid uses 1- ethyl- 3- methyl imidazolium tetrafluoroborate, 1- butyl -3- methyl imidazolium tetrafluoroborate or the double trifluoro methylsulphurs of 1- ethyl-3-methylimidazole The preparation of one or more of imide salts material.
Further, described the preparation method comprises the following steps:
Step 1: preparing zeolite imidazole ester metal organic frame, i.e. ZIF by solwution method;
Step 2: obtaining the Nitrogen-rich porous carbon material of the ZIF structure by ZIF high-temperature calcination in protective atmosphere;
Divide Step 3: dispersing the Nitrogen-rich porous carbon material for the ZIF structure that step 2 obtains in be formed in PEDOT:PSS aqueous solution Dispersion liquid, and dispersion liquid is cast to drying in mold, electrode film is made;The solid content 1.05% of PEDOT:PSS aqueous solution, i.e. water Contain 1.05% PEDOT:PSS inside solution.
Step 4: macromolecule matrix material and ionic liquid are mixed and added into organic solvent dissolution, it is cast in mold Drying obtains dielectric film;
Step 5: by dielectric film be placed in step 3 preparation two electrode films, i.e., first electrode layer, the second electrode lay it Between, the electrochemical actuator is prepared with pressure sintering assembling.
Further, the solwution method prepares the step of ZIF are as follows:
1.1, by dissolving metal salts in methanol, solution A is obtained;
1.2, glyoxaline compound is dissolved in methanol, obtains B solution;
1.3, B solution that step 2 obtains in batches or is added at one time in solution A and obtains mixed system, stand 0.5 ~ 5h, Obtain the ZIF.
Further, the ZIF is ZIF-8, ZIF-10, ZIF-11, ZIF-12, ZIF-67 etc., but not limited to this.
Further, the metal salt includes the combination of any one in zinc salt and cobalt salt or both;The zinc salt Including any one or the two or more combinations in zinc nitrate, zinc sulfate and zinc acetate;The cobalt salt include cobalt nitrate and In cobalt chloride any one or both combination;The glyoxaline compound include 2-methylimidazole, 2- ethyl imidazol(e) and Any one in 3- methylimidazole or two or more combinations.
Further, the step two specifically: in nitrogen or argon gas protective atmosphere, with the liter of 1 ~ 10 °C/min The ZIF is heated to 600 ~ 1000 °C by warm rate, and keeps the temperature 0.5 ~ 5h, is then cooled to room temperature, is obtained the ZIF structure Nitrogen-rich porous carbon material.
Further, the mass ratio of the Nitrogen-rich porous carbon material and PEDOT:PSS in the step three is 1:20 ~ 2:1.
Further, the mass ratio of the ionic liquid in the step four and macromolecule matrix material is 1:20 ~ 5:1;Institute The macromolecule matrix material stated includes any one or two or more combinations in polyurethane, Kynoar and chitosan; The ionic liquid includes 1- ethyl-3-methylimidazole tetrafluoroborate, 1- butyl -3- methyl imidazolium tetrafluoroborate and 1- Any one or two or more combinations of ethyl-3-methylimidazole bis-trifluoromethylsulfoandimide salt;The organic solvent packet Include any one in N,N-dimethylformamide, N-Methyl pyrrolidone and methylene chloride or two or more combinations;It is described Solution casting method film-forming heating temperature be 50 ~ 130 °C, heating time be 2 ~ 48h.
Further, the hot pressing temperature of the pressure sintering in the step five is 50 ~ 200 °C, and hot pressing time is 10min ~ 2h, Hot pressing form is a step hot pressing or gradually hot pressing.
The beneficial effect of the present invention and the prior art is: the Nitrogen-rich porous carbon of ZIF structure provided by the invention has height Capacitor, the synergistic effect of Nitrogen-rich porous carbon and PEDOT:PSS assigns nonmetal flexible electrode excellent chemical property, this hair The electrochemical actuator electromechanical based on Nitrogen-rich porous carbon nonmetal flexible electrode of bright offer is had excellent performance, electrochemistry driving The preparation method of device is simple.Therefore, which has preferable in fields such as artificial-muscle, bionic soft robots Application prospect.
Detailed description of the invention
Fig. 1 is the work of electrochemical actuator of an exemplary embodiment of the present invention preparation based on Nitrogen-rich porous carbon electrode Skill flow chart;
Fig. 2 is a kind of scanning electron microscope (SEM) photograph of Nitrogen-rich porous carbon material in the embodiment of the present invention;
Fig. 3 is a kind of transmission electron microscope picture of Nitrogen-rich porous carbon material in the embodiment of the present invention;
Fig. 4 is a kind of X of Nitrogen-rich porous carbon material and parent zeolite imidazate metal-organic framework material in the embodiment of the present invention X ray diffration pattern x;
Fig. 5 is a kind of x-ray photoelectron spectroscopy figure of Nitrogen-rich porous carbon material (C1s and N1s) in the embodiment of the present invention;
Fig. 6 is the cyclic voltammetry curves that a kind of Nitrogen-rich porous carbon/foam titanium net electrode sweeps under speed in difference in the embodiment of the present invention Figure;
Fig. 7 is a kind of Nitrogen-rich porous carbon/PEDOT:PSS composite electrode (ZIF structure Nitrogen-rich porous carbon in the embodiment of the present invention Mass fraction of the material in flexible electrode is the cyclic voltammetry curve figure 20%) swept in difference under speed;
Fig. 8 is a kind of electrochemical actuator of Nitrogen-rich porous carbon electrode (20%C-N/PEDOT:PSS electricity in the embodiment of the present invention Pole) electroluminescent displacement curve (3V sine voltage) at different frequencies;
Fig. 9 is electrochemical actuator (the different x%C-N/PEDOT:PSS electricity of Nitrogen-rich porous carbon electrode in the embodiment of the present invention Pole) the electroluminescent displacement comparison of tip peak to peak (3V sine voltage) at different frequencies.
Specific embodiment
Inventor is studied for a long period of time and is largely practiced, and is able to propose technical solution of the present invention.It as follows will be to the technical side Case, its implementation process and principle etc. are further explained.It should be understood that specific implementation described herein is only to solve The present invention is released, is not intended to limit the present invention.
As shown in Figure 1, the stream of the preparation method for the electrochemical actuator that a kind of Nitrogen-rich porous carbon of the invention is electrode Journey schematic diagram, it is described the preparation method comprises the following steps:
Step 1: preparing zeolite imidazole ester metal organic frame, i.e. ZIF by solwution method;
Step 2: obtaining the Nitrogen-rich porous carbon material of the ZIF structure by ZIF high-temperature calcination in protective atmosphere;
Divide Step 3: dispersing the Nitrogen-rich porous carbon material for the ZIF structure that step 2 obtains in be formed in PEDOT:PSS aqueous solution Dispersion liquid, solid content 1.05%, and dispersion liquid is cast to drying in mold, electrode film is made;
Step 4: macromolecule matrix material and ionic liquid are mixed and added into organic solvent dissolution, it is cast in mold and dries Obtain dielectric film;
Step 5: by dielectric film be placed in step 3 preparation two electrode films, i.e., first electrode layer, the second electrode lay it Between, the electrochemical actuator is prepared with pressure sintering assembling.
Utilize electrochemical actuator made from above-mentioned preparation method, including first electrode layer, electrolyte layer and second electrode Layer, total three-decker, the electrolyte layer upper and lower surface adhesive electrodes layer.The electrolyte layer upper and lower surface adhesive electrodes Layer;The electrode layer includes Nitrogen-rich porous carbon and conducting polymer preparation;The Nitrogen-rich porous carbon is by zeolite imidazole ester metal Organic frame pyrolysis is prepared;The conducting polymer is poly- (3,4- ethylenedioxythiophene)-poly- (styrene sulfonic acid).Institute The electrolyte layer stated includes macromolecule matrix material and ionic liquid;The basis material uses polyurethane, Kynoar Or one or more of chitosan material preparation;The ionic liquid uses 1- ethyl-3-methylimidazole tetrafluoro boron One of hydrochlorate, 1- butyl -3- methyl imidazolium tetrafluoroborate or 1- ethyl-3-methylimidazole bis-trifluoromethylsulfoandimide salt Or two or more material preparations.
It as follows will in conjunction with specific embodiments and data are further to works such as the technical solution, its implementation process and principles It illustrates.
Embodiment 1
It disperses 2.933 grams of zinc nitrate hexahydrates in 50mL methanol, forms solution A;6.489 grams of 2-methylimidazoles are dissolved in 50mL methanol forms solution B;Under magnetic stirring, solution A is added dropwise in solution B, then stands 6h, filtration washing obtains Zeolite imidazole ester metal-organic framework material (i.e. carbonization precursor).The material is transferred in tube furnace, nitrogen protection is led to, with The heating rate of 5 °C/min is heated to 800 °C and keeps the temperature 2h, is cooled to room temperature, and carbonized product taking-up is placed in dilute hydrochloric acid It impregnates 2 hours, centrifuge separation, washes 4 times, it is ethanol washing 2 times, 12 hours dry under 50 degree, it is porous to obtain ZIF structure richness nitrogen Carbon material.
2.1 mg ZIF structure Nitrogen-rich porous carbon materials and 1.8 g PEDOT:PSS aqueous solutions (solid content 1.05%) are super Sound dispersion mixing uniformly (mass fraction of the ZIF structure Nitrogen-rich porous carbon material in flexible electrode is 10%), then is poured dispersion liquid It casts onto Teflon mould, vacuum oven is dried 6 hours at a temperature of 60 DEG C, obtains flexible electrode film.By 50 mg Polyurethane and 50 mg 1- ethyl-3-methylimidazole bis-trifluoromethylsulfoandimide ionic liquids, which are uniformly mixed, forms gelling material Above-mentioned solution is cast in Teflon mould, later by matter after 10 mL n,N-Dimethylformamide of addition are evenly dispersed It is 12 hours dry in 60 DEG C of vacuum ovens, until solvent all volatilizees, obtain the polymer dielectric that load has ionic liquid Layer.Polyelectrolyte floor is placed between two panels flexible electrode film, hot pressing 5min at 95 DEG C, electrochemistry driving is prepared Device.Electrochemical actuator based on ZIF structure Nitrogen-rich porous carbon electrode prepared by an exemplary embodiment of the present invention 1 swashs The peak to peak displacement of driver tip is 13.1 mm under the 3V voltage 0.1Hz frequency that Optical displacement sensor measures.
In addition, Fig. 2 shows the surface sweeping Electronic Speculum of the MOF structural porous carbon material of an exemplary embodiment of the present invention Figure;Fig. 3 shows the transmission electron microscope picture of the MOF structural porous carbon material of an exemplary embodiment of the present invention;Fig. 4 is shown A kind of X of Nitrogen-rich porous carbon material and parent zeolite imidazate metal-organic framework material in an exemplary embodiments according to the present invention X ray diffration pattern x;Fig. 5 shows a kind of x-ray photoelectron energy of Nitrogen-rich porous carbon material in an exemplary embodiments according to the present invention Spectrogram (C1s and N1s);Fig. 6 shows a kind of Nitrogen-rich porous carbon/foam titanium net electrode in an exemplary embodiments according to the present invention and exists Difference sweeps the cyclic voltammetry curve figure under speed.MOF structural porous carbon material (is also regarded as a kind of carbon as seen in Figure 2 Nitrogen faceted material) present ZIF metal organic frame shape characteristic;Transmission electron microscope photo shown in Fig. 3 demonstrates above-mentioned shape Looks structure feature;The X-ray diffractogram of Fig. 4 further demonstrates the polyhedron of parent zeolite imidazate metal-organic framework material Structure and the carbon material structure calcined;X-ray photoelectron spectroscopy shown in Fig. 5 demonstrates carbon and nitrogen in Nitrogen-rich porous carbon material Presence.In addition, Nitrogen-rich porous carbon/foam titanium net electrode shown in Fig. 6 is swept the cyclic voltammetry curve under speed in difference and is provided The capacitive property of the Nitrogen-rich porous carbon material.
Embodiment 2
The preparation process of ZIF structure Nitrogen-rich porous carbon material is same as Example 1.
4.2 mg ZIF structure Nitrogen-rich porous carbon materials are uniformly mixed with 1.6 g PEDOT:PSS aqueous solution ultrasonic disperses (mass fraction of the ZIF structure Nitrogen-rich porous carbon material in flexible electrode is 20%), then dispersion liquid is cast to polytetrafluoroethylene (PTFE) In mold, vacuum oven is dried 6 hours at a temperature of 60 DEG C, obtains flexible electrode film.By 50 mg polyurethane and 50 mg 1- ethyl-3-methylimidazole bis-trifluoromethylsulfoandimide ionic liquid, which is uniformly mixed, forms spawn, and 10 mL are added After n,N-Dimethylformamide is evenly dispersed, above-mentioned solution is cast in Teflon mould, it is dry in 60 DEG C of vacuum later Dry case is 12 hours dry, until solvent all volatilizees, obtains the polyelectrolyte floor that load has ionic liquid.By electrostrictive polymer Solution matter is placed between two panels flexible electrode film, and hot pressing 5min, is prepared electrochemical actuator at 95 DEG C.According to the present invention Exemplary embodiment 1 prepare the electrochemical actuator based on ZIF structure Nitrogen-rich porous carbon, what laser displacement sensor measured The peak to peak displacement of driver tip is 17.5 mm under 3V voltage 0.1Hz frequency.
Fig. 7 is Nitrogen-rich porous carbon obtained in the embodiment of the present invention 2/PEDOT:PSS composite material film electrode (ZIF knot Structure Nitrogen-rich porous carbon material is the cyclic voltammetry curve figure 20%) swept in difference under speed in the mass fraction in fexible film electrode, Show the membrane electrode in 1M EMIMBF4/CH3There is good chemical property under CN test system.Fig. 8 is of the invention real Apply the electroluminescent displacement of Nitrogen-rich porous carbon electrode electro Chemical driver (20%C-N/PEDOT:PSS electrode) at different frequencies in example 2 Curve (3V sine voltage), from the figure we can see that, driver is under the working environment of sinusoidal waveform alternating voltage, electricity Sinusoidal waveform changing rule is presented in displacement output, and waveform is good, and output displacement is stablized.With the reduction of frequency, electric actuation displacement Increase, this is because with the reduction of frequency, since the ionic liquid zwitterion of polymeric inner has time enough migration And assemble to electrode, the displacement of driver gradually increases.
Embodiment 3
The preparation process of ZIF structure Nitrogen-rich porous carbon material is same as Example 1.
6.3 mg ZIF structure Nitrogen-rich porous carbon materials are uniformly mixed with 1.4 g PEDOT:PSS aqueous solution ultrasonic disperses (mass fraction of the ZIF structure Nitrogen-rich porous carbon material in flexible electrode is 30%), then dispersion liquid is cast to polytetrafluoroethylene (PTFE) In mold, vacuum oven is dried 6 hours at a temperature of 60 DEG C, obtains flexible electrode film.By 50 mg polyurethane and 50 mg 1- ethyl-3-methylimidazole bis-trifluoromethylsulfoandimide ionic liquid, which is uniformly mixed, forms spawn, and 10 mL are added After n,N-Dimethylformamide is evenly dispersed, above-mentioned solution is cast in Teflon mould, it is dry in 60 DEG C of vacuum later Dry case is 12 hours dry, until solvent all volatilizees, obtains the polyelectrolyte floor that load has ionic liquid.By electrostrictive polymer Solution matter is placed between two panels flexible electrode film, and hot pressing 5min, is prepared electrochemical actuator at 95 DEG C.According to the present invention Exemplary embodiment 1 prepare the electrochemical actuator based on ZIF structure Nitrogen-rich porous carbon, what laser displacement sensor measured The peak to peak displacement of driver tip is 15.1 mm under 3V voltage 0.1Hz frequency.
Embodiment 4
The preparation process of ZIF structure Nitrogen-rich porous carbon material is same as Example 1.
8.4 mg ZIF structure Nitrogen-rich porous carbon materials are uniformly mixed with 1.2 g PEDOT:PSS aqueous solution ultrasonic disperses (mass fraction of the ZIF structure Nitrogen-rich porous carbon material in flexible electrode is 40%), then dispersion liquid is cast to polytetrafluoroethylene (PTFE) In mold, vacuum oven is dried 6 hours at a temperature of 60 DEG C, obtains flexible electrode film.By 50 mg polyurethane and 50 mg 1- ethyl-3-methylimidazole bis-trifluoromethylsulfoandimide ionic liquid, which is uniformly mixed, forms spawn, and 10 mL are added After n,N-Dimethylformamide is evenly dispersed, above-mentioned solution is cast in Teflon mould, it is dry in 60 DEG C of vacuum later Dry case is 12 hours dry, until solvent all volatilizees, obtains the polyelectrolyte floor that load has ionic liquid.By electrostrictive polymer Solution matter is placed between two panels flexible electrode film, and hot pressing 5min, is prepared electrochemical actuator at 95 DEG C.According to the present invention Exemplary embodiment 1 prepare the electrochemical actuator based on ZIF structure Nitrogen-rich porous carbon, what laser displacement sensor measured The peak to peak displacement of driver tip is 12.4 mm under 3V voltage 0.1Hz frequency.
Embodiment 5
The preparation process of ZIF structure Nitrogen-rich porous carbon material is same as Example 1.
10.5mg ZIF structure Nitrogen-rich porous carbon material is uniformly mixed with 1.0 g PEDOT:PSS aqueous solution ultrasonic disperses (mass fraction of the ZIF structure Nitrogen-rich porous carbon material in flexible electrode is 50%), then dispersion liquid is cast to polytetrafluoroethylene (PTFE) In mold, vacuum oven is dried 6 hours at a temperature of 60 DEG C, obtains flexible electrode film.By 50 mg polyurethane and 50 mg 1- ethyl-3-methylimidazole bis-trifluoromethylsulfoandimide ionic liquid, which is uniformly mixed, forms spawn, and 10 mL are added After n,N-Dimethylformamide is evenly dispersed, above-mentioned solution is cast in Teflon mould, it is dry in 60 DEG C of vacuum later Dry case is 12 hours dry, until solvent all volatilizees, obtains the polyelectrolyte floor that load has ionic liquid.By electrostrictive polymer Solution matter is placed between two panels flexible electrode film, and hot pressing 5min, is prepared electrochemical actuator at 95 DEG C.According to the present invention Exemplary embodiment 1 prepare the electrochemical actuator based on ZIF structure Nitrogen-rich porous carbon, what laser displacement sensor measured The peak to peak displacement of driver tip is 9.5 mm under 3V voltage 0.1Hz frequency.
In addition, Fig. 9 shows under 3V sine voltage an exemplary embodiment of the present invention 1-5 under the conditions of different frequency Electrochemical actuator comparison of the tip peaks to peak shift value.20%C-N/PEDOT:PSS is the electrochemical actuator of electrode It can be best.
To sum up, Nitrogen-rich porous carbon material provided by the invention has MOF structure, and has preferable chemical property. And excellent electrochemical machinery characteristic is shown based on the Nitrogen-rich porous carbon/PEDOT:PSS electrode electrochemical actuator, because This, has huge application prospect in terms of bionics artificial thews and intelligent wearable electronic.
Based on description of the preferred embodiment of the present invention, it should be apparent that the sheet being defined by the appended claims Invention is not limited only to the specific detail that is illustrated in specification above, without departing from present inventive concept or range to this hair Bright many obviously change equally possible reaches the purpose of the present invention.

Claims (10)

1. the electrochemical actuator that a kind of Nitrogen-rich porous carbon is electrode, which is characterized in that the electrochemical actuator is electrode The three-decker of layer and electrolyte layer composition, the three-decker includes first electrode layer, electrolyte layer and second electrode Layer;The electrolyte layer upper and lower surface adhesive electrodes layer;The electrode layer includes Nitrogen-rich porous carbon and conducting polymer system It is standby;The Nitrogen-rich porous carbon is prepared by the pyrolysis of zeolite imidazole ester metal organic frame;The conducting polymer is poly- (3,4- Ethylenedioxythiophene)-poly- (styrene sulfonic acid), i.e. PEDOT:PSS.
2. the electrochemical actuator that a kind of Nitrogen-rich porous carbon according to claim 1 is electrode, which is characterized in that described Electrolyte layer includes macromolecule matrix material and ionic liquid;The basis material uses polyurethane, Kynoar or shell The preparation of one or more of glycan material;The ionic liquid using 1- ethyl-3-methylimidazole tetrafluoroborate, One of 1- butyl -3- methyl imidazolium tetrafluoroborate or 1- ethyl-3-methylimidazole bis-trifluoromethylsulfoandimide salt or two Kind or more material preparation.
3. a kind of Nitrogen-rich porous carbon a kind of as described in claim 1 is the preparation method of the electrochemical actuator of electrode, special Sign is, it is described the preparation method comprises the following steps:
Step 1: preparing zeolite imidazole ester metal organic frame, i.e. ZIF by solwution method;
Step 2: obtaining the Nitrogen-rich porous carbon material of the ZIF structure by ZIF high-temperature calcination in protective atmosphere;
Divide Step 3: dispersing the Nitrogen-rich porous carbon material for the ZIF structure that step 2 obtains in be formed in PEDOT:PSS aqueous solution Dispersion liquid, and dispersion liquid is cast to drying in mold, electrode film is made;
Step 4: macromolecule matrix material and ionic liquid are mixed and added into organic solvent dissolution, it is cast in mold and dries Obtain dielectric film;
Step 5: by dielectric film be placed in step 3 preparation two electrode films, i.e., first electrode layer, the second electrode lay it Between, the electrochemical actuator is prepared with pressure sintering assembling.
4. a kind of Nitrogen-rich porous carbon according to claim 3 is the preparation method of the electrochemical actuator of electrode, feature It is, the step of solwution method prepares ZIF are as follows:
1.1, by dissolving metal salts in methanol, solution A is obtained;
1.2, glyoxaline compound is dissolved in methanol, obtains B solution;
1.3, B solution that step 2 obtains in batches or is added at one time in solution A and obtains mixed system, stand 0.5 ~ 5h, Obtain the ZIF.
5. a kind of Nitrogen-rich porous carbon according to claim 4 is the preparation method of the electrochemical actuator of electrode, feature It is, the ZIF includes ZIF-8, ZIF-10, ZIF-11, ZIF-12, ZIF-67.
6. a kind of Nitrogen-rich porous carbon according to claim 4 is the preparation method of the electrochemical actuator of electrode, feature It is, metal salt includes the combination of any one in zinc salt and cobalt salt or both in the step of solwution method prepares ZIF; The zinc salt includes any one or two or more combinations in zinc nitrate, zinc sulfate and zinc acetate;The cobalt salt packet Include the combination of any one in cobalt nitrate and cobalt chloride or both;The glyoxaline compound includes 2-methylimidazole, 2- Any one in ethyl imidazol(e) and 3- methylimidazole or two or more combinations.
7. a kind of Nitrogen-rich porous carbon according to claim 3 is the preparation method of the electrochemical actuator of electrode, feature It is, the step two specifically: in nitrogen or argon gas protective atmosphere, with the heating rate of 1 ~ 10 °C/min by institute It states ZIF and is heated to 600 ~ 1000 °C, and keep the temperature 0.5 ~ 5h, then cool to room temperature, obtain the Nitrogen-rich porous carbon of the ZIF structure Material.
8. a kind of Nitrogen-rich porous carbon according to claim 3 is the preparation method of the electrochemical actuator of electrode, feature It is, the mass ratio of Nitrogen-rich porous carbon material and PEDOT:PSS in the step three is 1:20 ~ 2:1.
9. a kind of Nitrogen-rich porous carbon according to claim 3 is the preparation method of the electrochemical actuator of electrode, feature It is, the mass ratio of ionic liquid and macromolecule matrix material in the step four is 1:20 ~ 5:1;The macromolecule Basis material includes any one or two or more combinations in polyurethane, Kynoar and chitosan;The ion Liquid includes 1- ethyl-3-methylimidazole tetrafluoroborate, 1- butyl -3- methyl imidazolium tetrafluoroborate and 1- ethyl -3- first Any one or two or more combinations of base imidazoles bis-trifluoromethylsulfoandimide salt;The organic solvent includes N, N- diformazan Any one in base formamide, N-Methyl pyrrolidone and methylene chloride or two or more combinations;The solution-cast The heating temperature of the film-forming of method is 50 ~ 130 °C, and heating time is 2 ~ 48h.
10. a kind of Nitrogen-rich porous carbon according to claim 3 is the preparation method of the electrochemical actuator of electrode, feature It is, the hot pressing temperature of the pressure sintering in the step five is 50 ~ 200 °C, and hot pressing time is 10min ~ 2h, and hot pressing form is One step hot pressing or gradually hot pressing.
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Cited By (3)

* Cited by examiner, † Cited by third party
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CN111337561A (en) * 2020-03-04 2020-06-26 东北大学 Preparation method of bismuth-enhanced active/passive layer integrated electrochemical driver
CN112440436A (en) * 2020-10-09 2021-03-05 浙江理工大学 Bionic wing made of IPMC material and preparation method thereof
CN114649116A (en) * 2022-04-02 2022-06-21 合肥工业大学 Preparation method of MXene/MOFs electrode material and preparation method and application of electrochemical driver of MXene/MOFs electrode material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111337561A (en) * 2020-03-04 2020-06-26 东北大学 Preparation method of bismuth-enhanced active/passive layer integrated electrochemical driver
CN112440436A (en) * 2020-10-09 2021-03-05 浙江理工大学 Bionic wing made of IPMC material and preparation method thereof
CN114649116A (en) * 2022-04-02 2022-06-21 合肥工业大学 Preparation method of MXene/MOFs electrode material and preparation method and application of electrochemical driver of MXene/MOFs electrode material
CN114649116B (en) * 2022-04-02 2024-01-12 合肥工业大学 Preparation method of electrode material, preparation method of electrochemical driver and application

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