CN107902644A - A kind of open-type alkylene micro-nano cryptomere material three-dimensional structure and preparation method thereof - Google Patents
A kind of open-type alkylene micro-nano cryptomere material three-dimensional structure and preparation method thereof Download PDFInfo
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- CN107902644A CN107902644A CN201711317841.5A CN201711317841A CN107902644A CN 107902644 A CN107902644 A CN 107902644A CN 201711317841 A CN201711317841 A CN 201711317841A CN 107902644 A CN107902644 A CN 107902644A
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Abstract
The present invention provides a kind of open-type alkylene micro-nano cryptomere material three-dimensional structure and preparation method thereof.The constituent of the three-dimensional structure cyst wall includes alkylene molecular layer, and the alkylene molecular layer has graphene-structured, and has opening on the utricule of the structure.It is applied to the structure as carrier in chemical reaction, the opening passes in and out the structure beneficial to reactant and product, can effectively improve reaction rate and efficiency.The described method includes taking the metal oxide crystal grain with catalytic activity to be reacted in a heated condition with carbon-source gas, carbon-source gas are made to deposit to form alkylene molecular layer in metal oxide grain surface；The metal oxide wrapped up by alkylene molecular layer is removed using chemical method, but retains alkylene molecular layer；It is common to guide the alkylene molecule fault rupture of cryptomere and form opening at the same time by the synergistic effect of physical method, obtain the open-type alkylene micro-nano cryptomere material three-dimensional structure.
Description
Technical field
The present invention relates to alkylene field of material technology, more particularly to a kind of open-type alkylene micro-nano cryptomere material three-dimensional
Structure and preparation method thereof.
Background technology
Two-dimentional alkene sill including graphene and modified graphene is because it is with high effective surface area, chemistry
Stability, electric conductivity, catalytic activity etc. have application prospect in many fields, but it still has lamination cohesion even in applied at elevated temperature
The failure conditions for returning to graphite-structure and causing effective surface area to decline to a great extent.
So the production of the alkylene micro-nano cryptomere three-dimensional structure of related industry demand low cost is to solve two-dimentional alkylene
The weakness of material.Existing alkylene micro-nano cryptomere material three-dimensional structure has the advantages that possessed by two-dimentional alkene sill, such as
With high effective surface area, chemical stability, electric conductivity, catalytic activity etc..In addition existing alkylene micro-nano cryptomere material
Material three-dimensional structure also overcomes the weakness of two-dimentional alkene sill, is not easy stacking cohesion and graphitization.If but by existing alkene
Base micro-nano cryptomere material three-dimensional structure is applied in chemical reaction as carrier, can not be obviously improved reaction rate and efficiency.
The content of the invention
First purpose of the present invention is to provide a kind of open-type alkylene micro-nano cryptomere material three-dimensional structure.It is described to open
Shape of the mouth as one speaks alkylene micro-nano cryptomere material three-dimensional structure is the three-dimensional cystic structures of micro-nano-scale, micro- by the open-type alkylene
The material that cryptomere material three-dimensional topology convergence of receiving is formed, not only with the excellent of existing alkylene micro-nano cryptomere material three-dimensional structure
Point, and be applied to the open-type alkylene micro-nano cryptomere material three-dimensional structure as carrier in chemical reaction, be conducive to
Reactant and product pass in and out the open-type alkylene micro-nano cryptomere material three-dimensional structure by the opening, can effectively improve anti-
Speed and efficiency are answered, and then solves the problems, such as to mention in background technology.
To achieve these goals, the present invention provides following technical scheme：A kind of open-type alkylene micro-nano cryptomere material
Three-dimensional structure, the single side size of the open-type alkylene micro-nano cryptomere material three-dimensional structure is between 2 nanometers to 50 microns, capsule
The constituent of wall includes alkylene molecular layer, and the alkylene molecular layer has graphene-structured, and the open-type alkene
There is opening on the utricule of alkyl micro-nano cryptomere material three-dimensional structure.
Since the open-type alkylene micro-nano cryptomere material three-dimensional structure is to include the three-dimensional knot of cryptomere of graphene-structured
Structure, therefore with high effective surface area, chemical stability, electric conductivity, catalytic activity etc., and it is not easy stacking cohesion and stone
Mo Hua；Since the open-type alkylene micro-nano cryptomere material three-dimensional structure also has opening, it is applied to change as carrier
Learn in reaction, the open-type alkylene micro-nano cryptomere material three-dimensional knot is passed in and out by the opening beneficial to reactant and product
Structure, can effectively improve reaction rate and efficiency.
Further, the cyst wall is made of alkylene molecular layer, and the alkylene molecular layer also has amorphous carbon knot
Structure and heterocycle structure.The structure that the amorphous carbon and class graphene of cyst wall are combined, makes the open-type alkylene micro-nano cryptomere
Material three-dimensional structure itself can either bear very big ess-strain, and have moderate electric conductivity；The part heterocycle shape of cyst wall
Into fault of construction can greatly improve metal ion transmission rate and improve to the carrying capacity of metal ion.
Second object of the present invention is to provide a kind of open-type alkylene micro-nano cryptomere material three-dimensional structure for preparing
Method, the described method includes：
Take the metal oxide crystal grain with catalytic activity to be reacted in a heated condition with carbon-source gas, carbon-source gas is existed
Metal oxide grain surface deposits to form alkylene molecular layer；
The metal oxide wrapped up by alkylene molecular layer is removed using chemical method, but retains alkylene molecular layer,
Form alkylene micro-nano cryptomere material three-dimensional structure；
While the removal metal oxide using chemical method, by the synergistic effect of physical method, draw jointly
Lead the utricule fracture of the alkylene micro-nano cryptomere material three-dimensional structure and form opening, obtain the open-type alkylene micro-nano
Cryptomere material three-dimensional structure.
Preferably, the chemical method be specially with nitric acid, hydrochloric acid, sulfuric acid or it is described acid in two or more
Mixture and reactive metal oxide, and the mass fraction scope of acid is 30%~90%.
Preferably, the physical method is specially ultrasonic vibration and/or microwave irradiation, and ultrasonic vibration and microwave irradiation
Power bracket is 50W~3000W.
Preferably, the metal oxide with catalytic activity is zinc oxide, cupric oxide, cuprous oxide or the oxidation
Two or more mixture in thing；The crystal grain is monocrystalline or polycrystalline, and the single side size of crystal grain is at 2 nanometers to 50
Between micron.
Preferably, the carbon-source gas are acetylene or the molecule containing cyclenes.
Preferably, the metal oxide crystal grain reacts in a heated condition with carbon-source gas, its heating and temperature control exists
110 DEG C~600 DEG C.
Preferably, the metal oxide crystal grain reacts in a heated condition with carbon-source gas, and the control of its reaction time exists
1min~30min.
Further, it is described " to take metal oxide crystal grain with catalytic activity and carbon-source gas anti-in a heated condition
Should, make carbon-source gas deposit to form alkylene molecular layer in metal oxide grain surface " be specially：Take with catalytic activity
Metal oxide crystal grain is put into quartz boat, and quartz boat is placed in heating furnace, and protective gas is passed through into heating furnace, then will
After heating furnace heating, carbon-source gas are passed through into heating furnace, carbon-source gas deposit to form alkene in metal oxide grain surface
Base molecular layer.
Preferably, the protective gas is two or more in nitrogen, argon gas, helium, neon or the gas
Mixture, and react during the total gas pressure of carbon-source gas and protective gas control in the range of 0.1~1.1 standard atmospheric pressure.
Compared with prior art, the invention has the advantages that：
1st, open-type alkylene micro-nano cryptomere material three-dimensional structure provided by the invention have high effective surface area,
Chemical stability, electric conductivity, catalytic activity etc., and it is not easy stacking cohesion and graphitization；And due to the open-type alkylene
Micro-nano cryptomere material three-dimensional structure also has opening, if being applied to as carrier in chemical reaction, beneficial to reactant and production
Thing passes in and out the open-type alkylene micro-nano cryptomere material three-dimensional structure by the opening, can effectively improve reaction rate and effect
Rate.
2nd, the structure that the amorphous carbon of cyst wall and class graphene are combined, makes the open-type alkylene micro-nano cryptomere material
Three-dimensional structure itself can either bear very big ess-strain, and have moderate electric conductivity；What the part heterocycle of cyst wall was formed
Fault of construction can greatly improve metal ion transmission rate and improve the carrying capacity to metal ion.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly introduced, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as to model
The restriction enclosed, for those of ordinary skill in the art, without creative efforts, can also be according to these
Attached drawing obtains other relevant drawings.
Fig. 1 show the TEM figures for the open-type alkylene micro-nano cryptomere material three-dimensional structure that the embodiment of the present invention 2 obtains；
Fig. 2 show the TEM figures for the open-type alkylene micro-nano cryptomere material three-dimensional structure that the embodiment of the present invention 3 obtains；
Fig. 3 show the TEM figures for the open-type alkylene micro-nano cryptomere material three-dimensional structure that the embodiment of the present invention 4 obtains；
Fig. 4 show the TEM figures for the open-type alkylene micro-nano cryptomere material three-dimensional structure that the embodiment of the present invention 5 obtains；
Fig. 5 show the TEM figures for the open-type alkylene micro-nano cryptomere material three-dimensional structure that the embodiment of the present invention 6 obtains.
Embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clearly complete
Description.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, it is not intended to limit the present invention.Base
In the embodiment of the present invention, every other implementation that those skilled in the art are obtained on the premise of no creative work
Example, belongs to protection scope of the present invention.
Embodiment 1：
A kind of open-type alkylene micro-nano cryptomere material three-dimensional structure is present embodiments provided, the open-type alkylene is micro-
Cryptomere material three-dimensional structure of receiving is the cryptomere three-dimensional structure of micro-nano-scale, and single side size is between 2 nanometers to 50 microns, cyst wall
Constituent include alkylene molecular layer, the alkylene molecular layer has graphene-structured, and has opening on utricule.
Since the open-type alkylene micro-nano cryptomere material three-dimensional structure is cryptomere three-dimensional structure, formed by its polymerization
Material not only has effective surface area high possessed by two-dimentional alkene sill, chemical stability, electric conductivity, catalytic activity
The advantages that, and the cohesion of easy lamination and the graphitization shortcoming of two-dimentional alkene based structures can also be overcome.And the open-type alkene
There is opening on the utricule of alkyl micro-nano cryptomere material three-dimensional structure, if by the open-type alkylene micro-nano cryptomere material three-dimensional
Structure is applied in chemical reaction as carrier, and the opening provides as reactant and product and passes in and out the open-type alkylene
The passage of micro-nano cryptomere material three-dimensional structure, can effectively improve reaction rate and efficiency.
In addition, the cyst wall of the micro-nano cryptomere material three-dimensional structure of open-type alkylene described in the present embodiment can be only by alkylene
Molecular layer is formed.The alkylene molecular layer is in addition to the graphene-structured, also with amorphous carbon structure and heterocycle
Structure.The structure that the amorphous carbon and class graphene of cyst wall are combined, makes the open-type alkylene micro-nano cryptomere material three-dimensional
Structure itself can either bear very big ess-strain, and have moderate electric conductivity；The structure that the part heterocycle of cyst wall is formed
Defect can greatly improve metal ion transmission rate and improve the carrying capacity to metal ion.
Embodiment 2：
Present embodiments provide a kind of open-type alkylene micro-nano described in embodiment 1 cryptomere material three-dimensional structure of preparing
Method.The described method includes be laid in 1g nano zine oxides (wurtzite structure, single side size is between 2 nanometers to 50 microns)
In quartz boat, quartz boat is placed in heating furnace, is passed through argon gas as protective gas, then will with the heating rate of 10 DEG C/min
After heating furnace is warming up to 600 DEG C, acetylene is passed through while keeping argon gas to be passed through, catalysis reduction and deposition process is carried out, reacted
In journey keep temperature be 600 DEG C, after the completion of cooled to room temperature, take out intermediate product.Wherein, argon flow amount 100mL/
Min, the flow of acetylene is 50mL/min, and the time (acetylene is passed through the time) of catalysis reduction and deposition process is 15min.Heating furnace
In, the total gas pressure of argon gas and acetylene is maintained in the range of 0.1~1.1 standard atmospheric pressure.
Above-mentioned intermediate product is ultrasonically treated in nitric acid, the mass fraction of nitric acid is 60%, and ultrasonic power is
100W, ultrasonic time 20min.During this, nitric acid and wrapped nano zine oxide vigorous reaction are nano oxidized to remove
While zinc, cryptomere three-dimensional structure can be guided to be broken and produce capsule opening jointly with reference to the synergistic effect of ultrasonic vibration cavitation, it is real
The preparation of the open-type alkylene micro-nano cryptomere material three-dimensional structure is showed.The product being prepared is centrifuged afterwards,
It is dry, obtain the open-type alkylene micro-nano cryptomere material three-dimensional structure of drying regime.
The TEM that Fig. 1 show the open-type alkylene micro-nano cryptomere material three-dimensional structure that the present embodiment obtains schemes, in figure
" 0.5 μm " and " 100nm " are engineer's scale, and Fig. 1 confirms that the structure that the present invention obtains is open-type cryptomere three-dimensional structure, cyst wall
0~6nm of thickness.
Embodiment 3：
Present embodiments provide a kind of open-type alkylene micro-nano described in embodiment 1 cryptomere material three-dimensional structure of preparing
Method.The described method includes 1g nano zine oxides (hexagonal wurtzite structure, single side size is between 2 nanometers to 50 microns) is flat
It is laid in quartz boat, quartz boat is placed in heating furnace, nitrogen is passed through as protective gas, then with the heating speed of 10 DEG C/min
After heating furnace is warming up to 450 DEG C by rate, cyclopropylene is passed through while keeping nitrogen to be passed through, carries out catalysis reduction and deposition process,
In reaction process keep temperature be 450 DEG C, after the completion of cooled to room temperature, take out intermediate product.Wherein, nitrogen flow is
100mL/min, the flow of cyclopropylene is 60mL/min, and catalysis reduces and the time (cyclopropylene is passed through the time) of deposition process is
1min.In heating furnace, the total gas pressure of nitrogen and cyclopropylene is maintained in the range of 0.1~1.1 standard atmospheric pressure.
Above-mentioned intermediate product is ultrasonically treated in hydrochloric acid, the mass fraction of hydrochloric acid is 90%, and ultrasonic power is
50W, ultrasonic time 20min.During this, hydrochloric acid is with wrapped nano zine oxide vigorous reaction to remove nano zine oxide
While, cryptomere three-dimensional structure can be guided to be broken and produce capsule opening jointly with reference to the synergistic effect of ultrasonic vibration cavitation, realized
The preparation of the open-type alkylene micro-nano cryptomere material three-dimensional structure.The product being prepared is centrifuged afterwards, is dry
It is dry, obtain the open-type alkylene micro-nano cryptomere material three-dimensional structure of drying regime.
The TEM that Fig. 2 show the open-type alkylene micro-nano cryptomere material three-dimensional structure that the present embodiment obtains schemes, in figure
" 50nm " is engineer's scale, and Fig. 2 confirms that the structure that the present invention obtains is open-type cryptomere three-dimensional structure, 0~3nm of cyst wall thickness.
Embodiment 4：
Present embodiments provide a kind of open-type alkylene micro-nano described in embodiment 1 cryptomere material three-dimensional structure of preparing
Method.The described method includes 0.5g nano cupric oxides (single side size is between 2 nanometers to 50 microns) is nano oxidized with 0.5g
Cuprous (single side size is between 2 nanometers to 50 microns) are laid in quartz boat, and quartz boat is placed in heating furnace, is passed through helium
As protective gas, after heating furnace then is warming up to 110 DEG C with the heating rate of 10 DEG C/min, while keeping the helium to be passed through
Be passed through acetylene, carry out catalysis reduction and deposition process, it is 110 DEG C that temperature is kept in reaction process, after the completion of naturally cool to room
Temperature, takes out intermediate product.Wherein, helium gas flow 100mL/min, the flow of acetylene is 50mL/min, catalysis reduction and deposition
The time (acetylene is passed through the time) of process is 30min.In heating furnace, the total gas pressure of helium and acetylene maintains 0.1~1.1 standard
In barometric pressure range.
Above-mentioned intermediate product is ultrasonically treated in nitric acid, the mass fraction of nitric acid is 45%, and ultrasonic power is
3000W, ultrasonic time 30min.During this, nitric acid and wrapped nano cupric oxide and nano cuprous oxide vigorous reaction
While to remove nano cupric oxide and nano cuprous oxide, the synergistic effect that can combine ultrasonic vibration cavitation guides cryptomere jointly
Three-dimensional structure is broken and produces capsule opening, realizes the preparation of the open-type alkylene micro-nano cryptomere material three-dimensional structure.It
The product being prepared is centrifuged afterwards, is dry, obtains the open-type alkylene micro-nano cryptomere material three of drying regime
Tie up structure.
The TEM that Fig. 3 show the open-type alkylene micro-nano cryptomere material three-dimensional structure that the present embodiment obtains schemes, in figure
" 50nm " is engineer's scale, and Fig. 3 confirms that the structure that the present invention obtains is open-type cryptomere three-dimensional structure, 0~15nm of cyst wall thickness.
Embodiment 5：
Present embodiments provide a kind of open-type alkylene micro-nano described in embodiment 1 cryptomere material three-dimensional structure of preparing
Method., will the described method includes 1g nano cupric oxides (single side size is between 2 nanometers to 50 microns) are laid in quartz boat
Quartz boat is placed in heating furnace, is passed through neon as protective gas, then heating furnace is heated up with the heating rate of 10 DEG C/min
To after 300 DEG C, cyclopentadiene is passed through while keeping neon to be passed through, catalysis reduction and deposition process is carried out, is protected in reaction process
Temperature is held as 300 DEG C, after the completion of cooled to room temperature, take out intermediate product.Wherein, neon flow is 120mL/min, ring penta
The flow of diene is 80mL/min, and the time (cyclopentadiene is passed through the time) of catalysis reduction and deposition process is 10min.Heating furnace
In, the total gas pressure of neon and cyclopentadiene is maintained in the range of 0.1~1.1 standard atmospheric pressure.
Above-mentioned intermediate product is subjected to microwave irradiation processing in sulfuric acid, the mass fraction of sulfuric acid is 30%, microwave irradiation
Power is 3000W, microwave irradiation time 5min.During this, sulfuric acid and wrapped nano cupric oxide vigorous reaction with except
While removing nano cupric oxide, cryptomere three-dimensional structure can be guided to be broken and produce capsule and open jointly with reference to the synergistic effect of microwave irradiation
Mouthful, realize the preparation of the open-type alkylene micro-nano cryptomere material three-dimensional structure.The product being prepared is centrifuged afterwards
Separation, drying, obtain the open-type alkylene micro-nano cryptomere material three-dimensional structure of drying regime.
The TEM that Fig. 4 show the open-type alkylene micro-nano cryptomere material three-dimensional structure that the present embodiment obtains schemes, in figure
" 200nm " is engineer's scale, and Fig. 4 confirms that the structure that the present invention obtains is open-type cryptomere three-dimensional structure, in bar-shaped capsule form.
Embodiment 6：
Present embodiments provide a kind of open-type alkylene micro-nano described in embodiment 1 cryptomere material three-dimensional structure of preparing
Method.The described method includes 1g nano cuprous oxides (single side size is between 2 nanometers to 50 microns) are laid in quartz boat,
Quartz boat is placed in heating furnace, argon gas and helium is passed through as protective gas, then will be added with the heating rate of 10 DEG C/min
After hot stove is warming up to 250 DEG C, acetylene is passed through while keeping argon gas and helium to be passed through, carries out catalysis reduction and deposition process, instead
Should during keep temperature be 250 DEG C, after the completion of cooled to room temperature, take out intermediate product.Wherein, argon gas and helium is total
Flow is 120mL/min, and the flow of acetylene is 60mL/min, and catalysis reduces and the time (acetylene is passed through the time) of deposition process is
10min.In heating furnace, the total gas pressure of argon gas, helium and acetylene is maintained in the range of 0.1~1.1 standard atmospheric pressure.
Above-mentioned intermediate product is subjected to microwave irradiation processing in sulfuric acid, the mass fraction of sulfuric acid is 60%, microwave irradiation
Power is 50W, microwave irradiation time 1min.During this, sulfuric acid and wrapped nano cuprous oxide vigorous reaction with except
While removing nano cuprous oxide, the fracture of cryptomere three-dimensional structure can be drawn jointly with reference to the synergistic effect of microwave irradiation and produce capsule and open
Mouthful, realize the preparation of the open-type alkylene micro-nano cryptomere material three-dimensional structure.The product being prepared is centrifuged afterwards
Separation, drying, obtain the open-type alkylene micro-nano cryptomere material three-dimensional structure of drying regime.
The TEM that Fig. 5 show the open-type alkylene micro-nano cryptomere material three-dimensional structure that the present embodiment obtains schemes, in figure
" 10nm " is engineer's scale, and Fig. 5 confirms that the structure that the present invention obtains is open-type cryptomere three-dimensional structure, 0~5nm of cyst wall thickness.
Above-described embodiment 2 has at the same time into embodiment 6 during depositing alkylene molecular layer due to metal oxide crystal face
The different high miller index surface of deposition velocity and low index crystal plane deposition reaction, cause reaction speed (to contain at the same time with different crystal faces
High miller index surface and low index crystal plane) and it is different, and the regulatable size of thickness of cryptomere alkylene molecular layer is 1 nanometer~500
Nanometer, utricule obtain the open-type alkylene micro-nano cryptomere material three-dimensional structure along thin capsule face edge breaks opening.
Skilled addressee readily understands that, the methods of ultrasonic vibration selected in embodiment, microwave irradiation, is also optional
Replaced with other physical methods.The zinc oxide, cupric oxide, cuprous oxide can also be aoxidized by other metals with catalytic activity
Thing replaces.The molecule containing cyclenes such as the acetylene and cyclopropylene, cyclopentadiene can also be replaced by other carbon-source gas.The nitrogen
The gases such as gas, argon gas, helium, neon can also be replaced by other inert protective gas.The nitric acid, hydrochloric acid, sulfuric acid can also be by
Other acid replace.
Skilled addressee readily understands that, partial condition parameter is only listed in above-described embodiment, these conditions ginseng
Number is preferably conditional parameter, ought to be protected.But the other conditions parameter beyond these conditional parameter scopes can also be made
For open-type alkylene micro-nano cryptomere material three-dimensional structure is gone out, cause sample impure although side reaction is more in preparation process, and
Low yield, but should also be protected.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art, the invention discloses technical scope in, change or replacement can be readily occurred in, all should
Cover within the scope of the present invention.
Claims (9)
- A kind of 1. open-type alkylene micro-nano cryptomere material three-dimensional structure, it is characterised in that the open-type alkylene mini capsule For the single side size of shape material three-dimensional structure between 2 nanometers to 50 microns, the constituent of cyst wall includes alkylene molecular layer, The alkylene molecular layer has graphene-structured, and on the utricule of the open-type alkylene micro-nano cryptomere material three-dimensional structure With opening.
- 2. open-type alkylene micro-nano cryptomere material three-dimensional structure according to claim 1, it is characterised in that the cyst wall by Alkylene molecular layer is formed, and the alkylene molecular layer also has amorphous carbon structure and heterocycle structure.
- A kind of 3. method for preparing open-type alkylene micro-nano cryptomere material three-dimensional structure, it is characterised in that including：Take the metal oxide crystal grain with catalytic activity to be reacted in a heated condition with carbon-source gas, make carbon-source gas in metal Oxide grain surface deposits to form alkylene molecular layer；The metal oxide wrapped up by alkylene molecular layer is removed using chemical method, but retains alkylene molecular layer, is formed Alkylene micro-nano cryptomere material three-dimensional structure；While the removal metal oxide using chemical method, by the synergistic effect of physical method, institute is guided jointly State the utricule fracture of alkylene micro-nano cryptomere material three-dimensional structure and form opening, obtain the open-type alkylene micro-nano cryptomere Material three-dimensional structure.
- 4. method according to claim 3, it is characterised in that the chemical method is specially with nitric acid, hydrochloric acid, sulfuric acid or institute State the mixture and reactive metal oxide of two or more in acid, and the mass fraction scope of acid be 30%~ 90%.
- 5. method according to claim 4, it is characterised in that the physical method is specially ultrasonic vibration and/or microwave spoke According to, and the power bracket of ultrasonic vibration and microwave irradiation is 50W~3000W.
- 6. method according to claim 5, it is characterised in that the metal oxide with catalytic activity for zinc oxide, Two or more mixture in cupric oxide, cuprous oxide or the oxide；The crystal grain is monocrystalline or polycrystalline, and The single side size of crystal grain is between 2 nanometers to 50 microns.
- 7. method according to claim 5, it is characterised in that the carbon-source gas are acetylene or the molecule containing cyclenes.
- 8. method according to claim 5, it is characterised in that the metal oxide crystal grain is with carbon-source gas in heating condition Lower reaction, its heating and temperature control is at 110 DEG C~600 DEG C.
- 9. method according to claim 5, it is characterised in that the metal oxide crystal grain is with carbon-source gas in heating condition Lower reaction, its reaction time are controlled in 1min~30min.
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| XIAN JIAN ET AL.: "Facile Synthesis of Three-Dimensional Sandwiched MnO2@GCs@MnO2 Hybrid Nanostructured Electrode for Electrochemical Capacitors", 《APPLIED MATERIALS & INTERFACES》 * |
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