CN104495790B - A kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube - Google Patents
A kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube Download PDFInfo
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Abstract
A kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube. The present invention relates to the preparation method of a kind of porous carbon materials, particularly relate to a kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube. The present invention is the introducing impurity that preparation technology in existing method is loaded down with trivial details, building-up process can be inevitable in order to solve, the problem that expensive and aftertreatment is complicated. One, carbon nanotube is placed in the vitriol oil and the nitration mixture of concentrated nitric acid composition, and after back flow reaction, centrifuge washing carries out dialysis again, then is dried; Two, the product of polyvinylpyrrolidone, deionized water and step one is mixed, stir supersound process; Three, the product of step 2 is poured in No. 1 syringe, dimethyl silicone oil is poured in No. 2 syringes, it may also be useful to material in 1, No. 2 syringe is advanced in the PP material receptor of micro fluidic device by syringe pump; Four, first solidify, with carrying out after n-hexane drying preoxidation; Five, carbonizing treatment, obtains three-dimensional bowl-shape porous carbon materials.
Description
Technical field
The present invention relates to the preparation method of a kind of porous carbon materials, particularly relate to a kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube.
Background technology
Carbon nanotube from it since 1991 are found by Iijima, owing to having unique hollow structure, nano-scale, abnormal excellent physical chemical property, mechanical characteristics and the thermostability such as high aspect ratio and bigger specific surface area, cause the extensive concern of scientific circles. It at numerous areas as solar cell, catalysis, environmental area and biotechnology industry etc. have a wide range of applications. Porous carbon materials, the material of a kind of pore texture with certain size and quantity, because it has bigger specific surface area, high porosity and good electrical and thermal conductivity, it is widely used in the fields such as ultracapacitor, catalyzer and support of the catalyst, sorbent material, gas storage.
Three-dimensional porous carbon materials, the porous carbon materials particularly having carbon nanotube or polymkeric substance to participate in preparation is more and more subject to everybody attention. Lou etc., taking polypyrrole nanometer ball as presoma, have prepared the microporous carbon nanometer ball with high-ratio surface sum high specific capacitance through processes such as carbonization-activations; Zhou etc. utilize Co nanoparticle as seed by electroless plating by open port CNTs growth in situ on activated carbon substrate, thus obtain the three-dimensional layering mixed structure of nanotube and gac, can be used for high-performance super capacitor. By two-step approach, Zhu etc. prepare ordered mesopore carbon/carbon nano tube compound material three-dimensional conductive network. Lu etc. obtain porous carbon compounded microbeads through carbonization, steam activation process again by solution polymerization after being mixed with resol by CNTs, and porous compounded microbeads can be used for the research of the absorption of low-density lipoprotein in human serum after oversulfonate.
The common method preparing porous carbon materials has hard template method, soft template method, chemical activation method etc.
Porous carbon materials prepared by hard template method is the anti-phase replica of its template, some impurity of introducing that can be inevitable in building-up process, and preparation process is loaded down with trivial details.
Soft template method prepares porous carbon materials, and the requirement of synthesis condition is higher, and expensive price also limit its mass-producing application.
Traditional chemical activation method makes its subsequent treatment process become complicated owing to adding activator.
Summary of the invention
The present invention is the introducing impurity that preparation technology in existing method is loaded down with trivial details, building-up process can be inevitable in order to solve, the problem that expensive and aftertreatment is complicated, and provides a kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube.
A kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube of the present invention carries out according to the following steps:
One, carbon nanotube is placed in the vitriol oil and the nitration mixture of concentrated nitric acid composition, back flow reaction 2h��3h under temperature is 80��85 DEG C of conditions, carry out dialysis after centrifuge washing, then to be placed in temperature be that the baking oven of 60��70 DEG C is dried, obtain the carbon nanotube powder handled well;
In the nitration mixture of the described vitriol oil and concentrated nitric acid composition, the volume ratio of the vitriol oil and concentrated nitric acid is (2��4): 1; The described vitriol oil is the vitriol oil of massfraction 95%��99%, and described concentrated nitric acid is the concentrated nitric acid of massfraction 60%��70%;
Two, the carbon nanotube powder handled well mixing polyvinylpyrrolidone, deionized water and step one obtained, low whipping speed is 300r/min��400r/min and ultrasonic frequency processes 5h��10h when being 40KHz��50KHz, obtains Composite Particles Disperse Phase solution;
The carbon nanotube powder handled well and the mass ratio of polyvinylpyrrolidone that described step one obtains are (0.2��5): 1;
The quality of described polyvinylpyrrolidone and the ratio of deionized water volume are 0.1g:(3��13) mL;
Three, Composite Particles Disperse Phase solution step 2 obtained is poured in No. 1 syringe, dimethyl silicone oil is poured in No. 2 syringes, use syringe pump to be advanced in PP material receptor by the dimethyl silicone oil in the Composite Particles Disperse Phase solution in No. 1 syringe and No. 2 syringes, obtain carbon nano-tube/poly V-Pyrol RC compounded microbeads;
No. 1 described syringe and No. 2 are connected with PTFE tube between syringe with syringe pump;
The described Composite Particles Disperse Phase solution in No. 1 syringe and the volume ratio of the dimethyl silicone oil in No. 2 syringes are 1:(10��20);
The propelling speed of No. 1 described syringe is 0.5:(110��130 with the ratio of the propelling speed of No. 2 syringes);
Four, it is that the loft drier of 60��70 DEG C solidifies 12h��24h that carbon nano-tube/poly V-Pyrol RC compounded microbeads step 3 obtained is placed in temperature, then with n-hexane 4��6 times, it is placed in baking oven again to carry out drying preoxidation, obtains preoxidation carbon nano-tube/poly V-Pyrol RC compounded microbeads;
Described oven dry preoxidation process is: dry preoxidation 6h��9h when temperature is 140��160 DEG C, then dries preoxidation 1.5h��2h when temperature is 270��290 DEG C;
Five, under nitrogen atmosphere, preoxidation carbon nano-tube/poly V-Pyrol RC compounded microbeads step 4 obtained carries out carbonizing treatment, obtains three-dimensional bowl-shape porous carbon materials;
Described carbonizing treatment process is: taking the temperature rise rate of 4 DEG C/min��6 DEG C/min by room temperature to temperature as 700��800 DEG C, and be incubated 1.5h��2.5h at temperature is 700��800 DEG C;
The ratio that in described three-dimensional bowl-shape porous carbon materials, the residual C of the quality of carbon nanotube and polyvinylpyrrolidone measures is (1��20): 1.
In step 5 after high-temperature calcination (700-800 DEG C) processes, polyvinylpyrrolidone carbonization, the residual C that the material mass of residual is polyvinylpyrrolidone measures, and carbon nanotube fusing point is higher than 700-800 DEG C, so carbon nanotube not carbonization while polyvinylpyrrolidone carbonization.
The useful effect of the present invention
Acid-treated carbon nanotube, polyvinylpyrrolidone (PVP) mixing are dissolved in deionized water to be mixed with the disperse phase solution with certain viscosity through supersound process by the present invention, by homemade micro fluidic device, using dimethyl silicone oil as moving phase, mixing solutions prepares carbon nanotube/PVP compounded microbeads as disperse phase, it is cured again and preoxidation, then through calcination processing, the three-dimensional bowl-shape or bowl-shape porous carbon materials of class is finally obtained. The method of the present invention can not introduce impurity during the course, and preparation process is simple, safe and reliable, and environmentally friendly, and the prices of raw and semifnished materials used are cheap, requires not harsh to synthesis condition, and the material of synthesis has good performance in electrochemistry. And the method for the present invention then only needs simple aftertreatment, the porous carbon materials shape looks obtained are peculiar, are a kind of fairly simple methods preparing porous carbon materials easily, can be used for the field such as catalysis, ultracapacitor.
Accompanying drawing explanation
Fig. 1 is the SEM figure of the three-dimensional porous carbon material that test one obtains;
Fig. 2 is the SEM figure of the three-dimensional porous carbon material surface that test one obtains;
Fig. 3 is the three-dimensional porous carbon material XRD figure that test one obtains;
Fig. 4 is the cyclic voltammetry curve figure of the three-dimensional porous carbon material that test one obtains.
Embodiment
Embodiment one: a kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube of present embodiment carries out according to the following steps:
One, carbon nanotube is placed in the vitriol oil and the nitration mixture of concentrated nitric acid composition, back flow reaction 2h��3h under temperature is 80��85 DEG C of conditions, carry out dialysis after centrifuge washing, then to be placed in temperature be that the baking oven of 60��70 DEG C is dried, obtain the carbon nanotube powder handled well;
In the nitration mixture of the described vitriol oil and concentrated nitric acid composition, the volume ratio of the vitriol oil and concentrated nitric acid is (2��4): 1; The described vitriol oil is the vitriol oil of massfraction 95%��99%, and described concentrated nitric acid is the concentrated nitric acid of massfraction 60%��70%;
Two, the carbon nanotube powder handled well mixing polyvinylpyrrolidone, deionized water and step one obtained, low whipping speed is 300r/min��400r/min and ultrasonic frequency processes 5h��10h when being 40KHz��50KHz, obtains Composite Particles Disperse Phase solution;
The carbon nanotube powder handled well and the mass ratio of polyvinylpyrrolidone that described step one obtains are (0.2��5): 1;
The quality of described polyvinylpyrrolidone and the ratio of deionized water volume are 0.1g:(3��13) mL;
Three, Composite Particles Disperse Phase solution step 2 obtained is poured in No. 1 syringe, dimethyl silicone oil is poured in No. 2 syringes, use syringe pump to be advanced in PP material receptor by the dimethyl silicone oil in the Composite Particles Disperse Phase solution in No. 1 syringe and No. 2 syringes, obtain carbon nano-tube/poly V-Pyrol RC compounded microbeads;
No. 1 described syringe and No. 2 are connected with PTFE tube between syringe with syringe pump;
The described Composite Particles Disperse Phase solution in No. 1 syringe and the volume ratio of the dimethyl silicone oil in No. 2 syringes are 1:(10��20);
The propelling speed of No. 1 described syringe is 0.5:(110��130 with the ratio of the propelling speed of No. 2 syringes);
Four, it is that the loft drier of 60��70 DEG C solidifies 12h��24h that carbon nano-tube/poly V-Pyrol RC compounded microbeads step 3 obtained is placed in temperature, then with n-hexane 4��6 times, it is placed in baking oven again to carry out drying preoxidation, obtains preoxidation carbon nano-tube/poly V-Pyrol RC compounded microbeads;
Described oven dry preoxidation process is: dry preoxidation 6h��9h when temperature is 140��160 DEG C, then dries preoxidation 1.5h��2h when temperature is 270��290 DEG C;
Five, under nitrogen atmosphere, preoxidation carbon nano-tube/poly V-Pyrol RC compounded microbeads step 4 obtained carries out carbonizing treatment, obtains three-dimensional bowl-shape porous carbon materials;
Described carbonizing treatment process is: taking the temperature rise rate of 4 DEG C/min��6 DEG C/min by room temperature to temperature as 700��800 DEG C, and be incubated 1.5h��2.5h at temperature is 700��800 DEG C;
The ratio that in described three-dimensional bowl-shape porous carbon materials, the residual C of the quality of carbon nanotube and polyvinylpyrrolidone measures is (1��20): 1.
In step 5 after high-temperature calcination (700-800 DEG C) processes, polyvinylpyrrolidone carbonization, the residual C that the material mass of residual is polyvinylpyrrolidone measures, and carbon nanotube fusing point is higher than 700-800 DEG C, so carbon nanotube not carbonization while polyvinylpyrrolidone carbonization.
Acid-treated carbon nanotube, polyvinylpyrrolidone (PVP) mixing are dissolved in deionized water to be mixed with the disperse phase solution with certain viscosity through supersound process by present embodiment, by homemade micro fluidic device, using dimethyl silicone oil as moving phase, mixing solutions prepares carbon nanotube/PVP compounded microbeads as disperse phase, it is cured again and preoxidation, then through calcination processing, the three-dimensional bowl-shape or bowl-shape porous carbon materials of class is finally obtained. The method of present embodiment can not introduce impurity during the course, and preparation process is simple, safe and reliable, and environmentally friendly, and the prices of raw and semifnished materials used are cheap, requires not harsh to synthesis condition, and the material of synthesis has good performance in electrochemistry. And the method for present embodiment then only needs simple aftertreatment, the porous carbon materials shape looks obtained are peculiar, are a kind of fairly simple methods preparing porous carbon materials easily, can be used for the field such as catalysis, ultracapacitor.
Embodiment two: present embodiment and embodiment one the difference is that: in the nitration mixture of the vitriol oil described in step one and concentrated nitric acid composition, the volume ratio of the vitriol oil and concentrated nitric acid is 3:1. Other steps and parameter are identical with embodiment one.
Embodiment three: present embodiment and embodiment one or two the difference is that: the vitriol oil described in step one is the vitriol oil of massfraction 98%. Other steps and parameter are identical with embodiment one or two.
Embodiment four: one of present embodiment and embodiment one to three the difference is that: the concentrated nitric acid described in step one is the concentrated nitric acid of massfraction 65%. Other steps and one of parameter and embodiment one to three are identical.
Embodiment five: one of present embodiment and embodiment one to four the difference is that: the carbon nanotube powder handled well and the mass ratio of polyvinylpyrrolidone that the step one described in step 2 obtains are 2:1. Other steps and one of parameter and embodiment one to four are identical.
Embodiment six: one of present embodiment and embodiment one to five the difference is that: the quality of the polyvinylpyrrolidone described in step 2 and the ratio of deionized water volume are 0.1g:10mL. Other steps and one of parameter and embodiment one to five are identical.
Embodiment seven: one of present embodiment and embodiment one to six the difference is that: the propelling speed of described in step 3 No. 1 syringe is 0.5:120 with the ratio of the propelling speed of No. 2 syringes. Other steps and one of parameter and embodiment one to six are identical.
Embodiment eight: one of present embodiment and embodiment one to seven the difference is that: the carbon nano-tube/poly V-Pyrol RC compounded microbeads in step 4, step 3 obtained be placed in temperature be 65 DEG C loft drier solidify 24h. Other steps and one of parameter and embodiment one to seven are identical.
Embodiment nine: one of present embodiment and embodiment one to eight the difference is that: the oven dry preoxidation process described in step 4 is: dry preoxidation 8h when temperature is 150 DEG C, then dries preoxidation 2h when temperature is 280 DEG C. Other steps and one of parameter and embodiment one to eight are identical.
Embodiment ten: one of present embodiment and embodiment one to nine the difference is that: the carbonizing treatment process described in step 5 is: taking the temperature rise rate of 5 DEG C/min by room temperature to temperature as 750 DEG C, and be incubated 2h at temperature is 750 DEG C. Other steps and one of parameter and embodiment one to nine are identical.
Embodiment 11: one of present embodiment and embodiment one to ten the difference is that: the ratio that in the three-dimensional bowl-shape porous carbon materials described in step 5, the residual C of the quality of carbon nanotube and polyvinylpyrrolidone measures is 10:1. Other steps and one of parameter and embodiment one to ten are identical.
The useful effect of the present invention is verified with following test
Test one: a kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube of this test carries out according to the following steps:
One, carbon nanotube is placed in the vitriol oil and the nitration mixture of concentrated nitric acid composition, and back flow reaction 3h under temperature is 80 DEG C of conditions, carries out dialysis after centrifuge washing, then to be placed in temperature be that the baking oven of 70 DEG C is dried, and obtains the carbon nanotube powder handled well;
In the nitration mixture of the described vitriol oil and concentrated nitric acid composition, the volume ratio of the vitriol oil and concentrated nitric acid is 3:1; The described vitriol oil is the vitriol oil of massfraction 98%, and described concentrated nitric acid is the concentrated nitric acid of massfraction 65%;
Two, the carbon nanotube powder handled well mixing polyvinylpyrrolidone, deionized water and step one obtained, low whipping speed is 300r/min and ultrasonic frequency processes 10h when being 40KHz, obtains Composite Particles Disperse Phase solution;
The carbon nanotube powder handled well and the mass ratio of polyvinylpyrrolidone that described step one obtains are 2:1;
The quality of described polyvinylpyrrolidone and the ratio of deionized water volume are 0.1g:10mL;
Three, Composite Particles Disperse Phase solution step 2 obtained is poured in No. 1 syringe, dimethyl silicone oil is poured in No. 2 syringes, use syringe pump to be advanced in PP material receptor by the dimethyl silicone oil in the Composite Particles Disperse Phase solution in No. 1 syringe and No. 2 syringes, obtain carbon nano-tube/poly V-Pyrol RC compounded microbeads;
No. 1 described syringe and No. 2 are connected with PTFE tube between syringe with syringe pump;
The described Composite Particles Disperse Phase solution in No. 1 syringe and the volume ratio of the dimethyl silicone oil in No. 2 syringes are 1:20;
The propelling speed of No. 1 described syringe is 0.5:120 with the ratio of the propelling speed of No. 2 syringes;
Four, it is that the loft drier of 65 DEG C solidifies 24h that carbon nano-tube/poly V-Pyrol RC compounded microbeads step 3 obtained is placed in temperature, then with n-hexane 5 times, it is placed in baking oven again to carry out drying preoxidation, obtains preoxidation carbon nano-tube/poly V-Pyrol RC compounded microbeads;
Described oven dry preoxidation process is: dry preoxidation 8h when temperature is 150 DEG C, then dries preoxidation 2h when temperature is 280 DEG C;
Five, under nitrogen atmosphere, preoxidation carbon nano-tube/poly V-Pyrol RC compounded microbeads step 4 obtained carries out carbonizing treatment, obtains three-dimensional bowl-shape porous carbon materials;
Described carbonizing treatment process is: taking the temperature rise rate of 5 DEG C/min by room temperature to temperature as 750 DEG C, and be incubated 2h at temperature is 750 DEG C;
The ratio that in described three-dimensional bowl-shape porous carbon materials, the residual C of the quality of carbon nanotube and polyvinylpyrrolidone measures is 10:1.
(1) the three-dimensional bowl-shape porous carbon materials and the surface thereof that adopt model to be S-4800 field emission surface sweeping Electronic Speculum test one to be obtained are scanned, obtain the figure of SEM as depicted in figs. 1 and 2, as can be seen from Fig. 1 and Fig. 2, the three-dimensional bowl-shape porous carbon materials that test one obtains has special bowl-shape shape looks and vesicular structure, such porous carbon materials has great specific surface area, can be used for the field such as catalysis, solar cell.
(2) model is adopted to be that the three-dimensional bowl-shape porous carbon materials that obtains of test one is analyzed by the X-ray diffractometer of D8ADVANCE, obtain XRD figure as shown in Figure 3, it is carbon nanotube greying characteristic peak by Fig. 3 shows the diffraction peak occurred near 26 ��.
(3) adopt LK98B II electrochemical analysis system to be tested by the three-dimensional bowl-shape porous carbon materials that test one obtains, obtain cyclic voltammetry curve figure as shown in Figure 4, from Fig. 4 figure, demonstrate gained material there is good electrical property.
Claims (10)
1. prepare the method for three-dimensional bowl-shape porous carbon materials based on carbon nanotube for one kind, it is characterised in that a kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube carries out according to the following steps:
One, carbon nanotube is placed in the vitriol oil and the nitration mixture of concentrated nitric acid composition, back flow reaction 2h��3h under temperature is 80��85 DEG C of conditions, carry out dialysis after centrifuge washing, then to be placed in temperature be that the baking oven of 60��70 DEG C is dried, obtain the carbon nanotube powder handled well;
In the nitration mixture of the described vitriol oil and concentrated nitric acid composition, the volume ratio of the vitriol oil and concentrated nitric acid is (2��4): 1; The described vitriol oil is the vitriol oil of massfraction 95%��99%, and described concentrated nitric acid is the concentrated nitric acid of massfraction 60%��70%;
Two, the carbon nanotube powder handled well mixing polyvinylpyrrolidone, deionized water and step one obtained, low whipping speed is 300r/min��400r/min and ultrasonic frequency processes 5h��10h when being 40KHz��50KHz, obtains Composite Particles Disperse Phase solution;
The carbon nanotube powder handled well and the mass ratio of polyvinylpyrrolidone that described step one obtains are (0.2��5): 1;
The quality of described polyvinylpyrrolidone and the ratio of deionized water volume are 0.1g:(3��13) mL;
Three, Composite Particles Disperse Phase solution step 2 obtained is poured in No. 1 syringe, dimethyl silicone oil is poured in No. 2 syringes, use syringe pump to be advanced in PP material receptor by the dimethyl silicone oil in the Composite Particles Disperse Phase solution in No. 1 syringe and No. 2 syringes, obtain carbon nano-tube/poly V-Pyrol RC compounded microbeads;
No. 1 described syringe and No. 2 are connected with PTFE tube between syringe with syringe pump;
The described Composite Particles Disperse Phase solution in No. 1 syringe and the volume ratio of the dimethyl silicone oil in No. 2 syringes are 1:(10��20);
The propelling speed of No. 1 described syringe is 0.5:(110��130 with the ratio of the propelling speed of No. 2 syringes);
Four, it is that the loft drier of 60��70 DEG C solidifies 12h��24h that carbon nano-tube/poly V-Pyrol RC compounded microbeads step 3 obtained is placed in temperature, then with n-hexane 4��6 times, it is placed in baking oven again to carry out drying preoxidation, obtains preoxidation carbon nano-tube/poly V-Pyrol RC compounded microbeads;
Described oven dry preoxidation process is: dry preoxidation 6h��9h when temperature is 140��160 DEG C, then dries preoxidation 1.5h��2h when temperature is 270��290 DEG C;
Five, under nitrogen atmosphere, preoxidation carbon nano-tube/poly V-Pyrol RC compounded microbeads step 4 obtained carries out carbonizing treatment, obtains three-dimensional bowl-shape porous carbon materials;
Described carbonizing treatment process is: taking the temperature rise rate of 4 DEG C/min��6 DEG C/min by room temperature to temperature as 700��800 DEG C, and be incubated 1.5h��2.5h at temperature is 700��800 DEG C;
The ratio that in described three-dimensional bowl-shape porous carbon materials, the residual C of the quality of carbon nanotube and polyvinylpyrrolidone measures is (1��20): 1.
2. a kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube according to claim 1, it is characterised in that in the nitration mixture of the vitriol oil described in step one and concentrated nitric acid composition, the volume ratio of the vitriol oil and concentrated nitric acid is 3:1.
3. a kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube according to claim 1, it is characterized in that the vitriol oil described in step one is the vitriol oil of massfraction 98%, the concentrated nitric acid described in step one is the concentrated nitric acid of massfraction 65%.
4. a kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube according to claim 1, it is characterised in that the carbon nanotube powder handled well and the mass ratio of polyvinylpyrrolidone that the step one described in step 2 obtains are 2:1.
5. a kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube according to claim 1, it is characterised in that the quality of the polyvinylpyrrolidone described in step 2 and the ratio of deionized water volume are 0.1g:10mL.
6. a kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube according to claim 1, it is characterised in that the propelling speed of described in step 3 No. 1 syringe is 0.5:120 with the ratio of the propelling speed of No. 2 syringes.
7. a kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube according to claim 1, it is characterised in that the carbon nano-tube/poly V-Pyrol RC compounded microbeads in step 4, step 3 obtained be placed in temperature be 65 DEG C loft drier solidify 24h.
8. a kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube according to claim 1, it is characterized in that the oven dry preoxidation process described in step 4 is: dry preoxidation 8h when temperature is 150 DEG C, then dry preoxidation 2h when temperature is 280 DEG C.
9. a kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube according to claim 1, the carbonizing treatment process described in step 5 that it is characterized in that is: taking the temperature rise rate of 5 DEG C/min by room temperature to temperature as 750 DEG C, and be incubated 2h at temperature is 750 DEG C.
10. a kind of method preparing three-dimensional bowl-shape porous carbon materials based on carbon nanotube according to claim 1, it is characterised in that the ratio that in the three-dimensional bowl-shape porous carbon materials described in step 5, the residual C of the quality of carbon nanotube and polyvinylpyrrolidone measures is 10:1.
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