CN108411335A - A kind of method of electrochemically reducing carbon dioxide - Google Patents
A kind of method of electrochemically reducing carbon dioxide Download PDFInfo
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Abstract
A kind of method of electrochemically reducing carbon dioxide is related to a kind of method of reduction carbon dioxide, and the cu-based amorphous alloys that the method uses are Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS, ingredient and atomic percent are：46%Cu, 44.5%Zr, 7.5%Al, 2%Y；Cu is prepared first46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS, then under normal temperature and pressure, in potassium bicarbonate solution, by Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS is as working electrode, using potassium bicarbonate solution as electrode solution, using carbon dioxide as carbon resource, and electrochemically reducing carbon dioxide；The present invention is a kind of method using cu-based amorphous alloys electrochemically reducing carbon dioxide, both cu-based amorphous alloys surface is utilized to have high chemism, also cu-based amorphous alloys is utilized to have good electric property and stability.This method equipment is simple, easily-controllable, and cu-based amorphous alloys prepare fairly simple, and price is low.
Description
Technical field
It is specially a kind of to utilize cu-based amorphous alloys electrochemical reduction the present invention relates to a kind of method of reduction carbon dioxide
The method of carbon dioxide.
Background technology
The fast development of modern industry improve people’s lives level, but also produce to environment detrimental effect because
The discharge of element, especially carbon dioxide makes the concentration of carbon dioxide in air continue to increase.The greenhouse effects of carbon dioxide with it is complete
Ball warms closely related, brings a series of environmental problems, such as Melting Glacierss, extreme climate change and sea level rise,
Serious threat is caused to the living environment of the mankind.People explore various methods to realize capture, the storage to carbon dioxide
It deposits and utilizes.
Early in 19th century, people find that using chemical technology can be the production for having economic value added by carbon dioxide reduction
Object, such as formic acid, methane and HC fuel.The recycling of carbon dioxide becomes current environment, the energy and material in the world
The research hotspot that field is paid close attention to jointly.Also it is chemicals that a variety of reduction techniques are developed in laboratory by carbon dioxide conversion
Or energy, such as biological reducing, photo-reduction, thermal reduction and electroreduction etc., but not yet can popularization and application in the industrial production.It is led
Want one of reason be catalyst performance it is bad.Carbon dioxide molecule is C element most stable of existence form in nature, right
It, which restore utilizing, needs catalyst help to reduce activation energy and reaction energy barrier.It can be said that catalyst performance is largely
On determine carbon dioxide reduction conversion effect.
Existing catalyst still faces problems.In the electrochemically reducing carbon dioxide technology with industrialization potential
In, it is that uniquely efficiently can generate the metallic catalyst of hydrocarbon by electro-catalysis carbon dioxide, thus become electro-catalysis that polycrystalline Cu, which is recognized,
The leading candidate of agent.But the deficiency of selectivity and stability hinders the practical application of Cu catalyst.Therefore, it is promoted
Elctro-catalyst, the especially performance of Cu bases catalyst will promote the industrialization process of electrochemical carbon dioxide reduction process.Due to
The performance of catalyst is mainly influenced by its material surface pattern and composition, and in the late four decades, researchers attempt to Cu materials
Carry out diversified pattern transformation or alloying.Further, since carbon dioxide reduction process is complicated, product is various, reaction
Mechanism and path be not still apparent, and which increases the blindness in Catalyst Design.
Invention content
The purpose of the present invention is to provide a kind of methods using cu-based amorphous alloys electrochemically reducing carbon dioxide, both sharp
There is high chemism with cu-based amorphous alloys surface, also utilize cu-based amorphous alloys that there is good electric property and stabilization
Property.This method equipment is simple, easily-controllable, and cu-based amorphous alloys prepare fairly simple, and price is low.
The technical scheme is that：
A kind of method of electrochemically reducing carbon dioxide, the cu-based amorphous alloys that the method uses are Cu46Zr44.5Al7.5Y2It is non-
Peritectic alloy band, ingredient and atomic percent are：46%Cu, 44.5%Zr, 7.5%Al, 2%Y；It prepares first
Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS, then under normal temperature and pressure, in potassium bicarbonate solution, by Cu46Zr44.5Al7.5Y2It is non-
Peritectic alloy band is as working electrode, using potassium bicarbonate solution as electrode solution, using carbon dioxide as carbon resource, and electrochemical reduction two
Carbonoxide；
Specific preparation process is as follows：
（1）Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS prepares dispensing：Experiment simple substance raw material used is all made of purity and is not less than
99.9 %（Mass percent）Cu, Zr, Al and Y；The quality of above-mentioned simple substance raw material, above-mentioned list are weighed up using precision electronic balance
The gross mass of matter raw material is 100 grams；Then ultrasonic cleaning is carried out to above-mentioned simple substance raw material with petroleum ether and absolute ethyl alcohol, finally
Above-mentioned simple substance raw material is mixed and is put into inside tungsten electrode magnetic control arc stove；
（2）Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS prepares foundry alloy melting：Tungsten electrode magnetic control arc stove working chamber is vacuumized
To 7 × 10-4Pa, then it is 99.99% to be passed through purity（Mass percent）High-purity argon gas；Titanium is melted, metal is passed through
Strong oxidation reaction is to further decrease the partial pressure of oxygen in working chamber at high temperature for titanium, the then above-mentioned simple substance raw material of melting again,
Become mother alloy ingot；After the completion of melting, mother alloy ingot is cooled to room temperature with tungsten electrode magnetic control arc stove, takes out master alloy
Ingot casting；
（3）Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS prepares electrode preparation：By above-mentioned melted master alloy ingot descale
Afterwards, it is crushed to fritter；Then 50 grams of fritter alloy pig is put into and carries aperture below（1-1.5 millimeters of diameter）Quartz ampoule
After interior, then the quartz ampoule equipped with fritter alloy put into induction furnace, waits for working chamber vacuum to 2 × 10-3Pa, then carry out induction and melt
Refining；After waiting for that fritter alloy becomes alloy melt by solid, and the temperature of alloy melt reaches preset temperature, high-purity argon is used immediately
Alloy melt in quartz ampoule is sprayed onto high-speed rotating copper roller surface by gas, forms Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS；
（4）The corrosion of electrode：The Cu of above-mentioned preparation46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS takes the 40% of calculation amount as electrode
Deionized water is added in 1-3 milliliters of hydrofluoric acid solution；
（5）Electrode catalyst restores carbon dioxide：At normal temperatures and pressures, experiment carries out in H-type quartz electrode cell；Use proton exchange
Electrolytic cell is divided into cathode chamber and anode chamber by film, and above-mentioned two Room electrolyte is potassium bicarbonate aqueous solution, electrode catalyst reduction
It is first passed through nitrogen before carbon dioxide, in cathode chamber electrolyte 30 minutes to remove the oxygen in electrolyte, is being passed through carbon dioxide
30 minutes, the gas concentration lwevel in catholyte is made to reach saturation, be continuously passed through carbon dioxide, flow control is lived
10-30 ml/mins.
A kind of method of electrochemically reducing carbon dioxide, the Cu46Zr44.5Al7.5Y2 AMORPHOUS ALLOY RIBBONSs
The foundry alloy melting of preparation, to ensure that the chemical composition uniformity of mother alloy ingot, mother alloy ingot at least need to turn refining 5 times.
A kind of method of the electrochemically reducing carbon dioxide, the corrosion of the electrode,
The electrode corroded is placed in anhydrous hexanol, with ultrasonic cleaning 5 minutes, is subsequently placed in aquae destillata and cleans 5 minutes,
It is finally placed in sky beaker, is dried up with hair-dryer.
The method of a kind of electrochemically reducing carbon dioxide, after the electrode catalyst restores carbon dioxide corrosion
Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS, platinized platinum, saturated calomel electrode make working electrode, to electrode and reference electrode respectively；
The method for taking timing sampling takes sample, and quantification and qualification is carried out with gas chromatograph.
The present invention has the following advantages：
1, compared with traditional copper electrode pole, the Cu prepared by the present invention46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS electrode, surface
Both there is higher chemism, while also there is good electric property and stability.
2, cu-based amorphous alloys Forming ability of the present invention is strong, and production cost is low, technology maturation, is not necessarily to a large amount of fund, production
Industry is easier to.
Specific implementation mode
The present invention is described in detail by the following examples.
A method of the cu-based amorphous alloys used using cu-based amorphous alloys electrochemically reducing carbon dioxide, the invention
For Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS, ingredient and atomic percent are：46%Cu, 44.5%Zr, 7.5%Al, 2%Y.
Embodiment 1
Cu46Zr44.5Al7.5Y2It is prepared by AMORPHOUS ALLOY RIBBONS
（1）Dispensing：Experiment simple substance raw material used is all made of purity and is not less than 99.9 %（Mass percent）Cu, Zr, Al and Y.
The quality of above-mentioned simple substance raw material is weighed up using precision electronic balance, the gross mass of above-mentioned simple substance raw material is 100 grams.Then oil is used
Ether and absolute ethyl alcohol carry out ultrasonic cleaning to above-mentioned simple substance raw material, and finally above-mentioned simple substance raw material is mixed and is put into tungsten electrode magnetic
It controls inside electric arc furnaces.
（2）Foundry alloy melting：Tungsten electrode magnetic control arc stove working chamber is evacuated to 7 × 10-4Pa, then be passed through purity and be
99.99%（Mass percent）High-purity argon gas.Titanium is melted, by Titanium at high temperature strong oxidation reaction with
The partial pressure of oxygen in working chamber is further decreased, then the above-mentioned simple substance raw material of melting again, becomes mother alloy ingot.It is female to ensure
The chemical composition uniformity of alloy cast ingot, mother alloy ingot turn refining 5 times.After the completion of melting, mother alloy ingot is with tungsten electrode magnetic control electricity
Arc stove is cooled to room temperature, and is then opened tungsten electrode magnetic control arc stove and is taken out mother alloy ingot.
（3）It is prepared by electrode：After above-mentioned melted master alloy ingot descale, it is crushed to fritter；Then by 50 grams
Fritter alloy pig is put into carries aperture below（1.3 millimeters of diameter）Quartz ampoule in after, then the quartz ampoule equipped with fritter alloy
It puts induction furnace into, waits for working chamber vacuum to 2 × 10-3Pa, then carry out induction melting；Wait for that fritter alloy becomes alloy by solid and melts
Body, and after the temperature of alloy melt reaches preset temperature, the alloy melt in quartz ampoule is sprayed onto height with high-purity argon gas immediately
The copper roller surface of speed rotation, forms Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS.
（4）The corrosion of electrode：The Cu of above-mentioned preparation46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS takes calculation amount as electrode
40% 2.5 milliliters of hydrofluoric acid solution is added deionized water, is configured to the dilute hydrofluoric acid solution of 500 milliliters of respective concentration；It takes and wants
The electrode of corrosion, which is put into corresponding hydrofluoric acid solution, corrodes the regular hour.The electrode corroded is placed in anhydrous hexanol,
With ultrasonic cleaning 5 minutes, it is subsequently placed in aquae destillata and cleans 5 minutes, be finally placed in sky beaker, dried up with hair-dryer.
（5）Electrode catalyst restores carbon dioxide experiment：At normal temperatures and pressures, experiment carries out in H-type quartz electrode cell.With
Electrolytic cell is divided into cathode chamber and anode chamber by proton exchange membrane, and above-mentioned two Room electrolyte is 0.1 mol/L saleratus water
Solution, the Cu after above-mentioned corrosion46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS, platinized platinum, saturated calomel electrode make respectively working electrode,
To electrode and reference electrode.The method for taking timing sampling takes sample, and quantification and qualification is carried out with gas chromatograph.
Before electrode catalyst restores carbon dioxide experiment, nitrogen is first passed through in cathode chamber electrolyte 30 minutes to remove the oxygen in electrolyte
Gas is being passed through carbon dioxide 30 minutes, and the gas concentration lwevel in catholyte is made to reach saturation, in experimentation, continues
It is constantly passed through carbon dioxide, 20 ml/mins are lived in flow control.
Embodiment 2
Cu46Zr44.5Al7.5Y2It is prepared by AMORPHOUS ALLOY RIBBONS
（1）Dispensing：Experiment simple substance raw material used is all made of purity and is not less than 99.9 %（Mass percent）Cu, Zr, Al and Y.
The quality of above-mentioned simple substance raw material is weighed up using precision electronic balance, the gross mass of above-mentioned simple substance raw material is 100 grams.Then oil is used
Ether and absolute ethyl alcohol carry out ultrasonic cleaning to above-mentioned simple substance raw material, and finally above-mentioned simple substance raw material is mixed and is put into tungsten electrode magnetic
It controls inside electric arc furnaces.
（2）Foundry alloy melting：Tungsten electrode magnetic control arc stove working chamber is evacuated to 7 × 10-4Pa, then be passed through purity and be
99.99%（Mass percent）High-purity argon gas.Titanium is melted, by Titanium at high temperature strong oxidation reaction with
The partial pressure of oxygen in working chamber is further decreased, then the above-mentioned simple substance raw material of melting again, becomes mother alloy ingot.It is female to ensure
The chemical composition uniformity of alloy cast ingot, mother alloy ingot turn refining 5 times.After the completion of melting, mother alloy ingot is with tungsten electrode magnetic control electricity
Arc stove is cooled to room temperature, and is then opened tungsten electrode magnetic control arc stove and is taken out mother alloy ingot.
（3）It is prepared by electrode：After above-mentioned melted master alloy ingot descale, it is crushed to fritter；Then by 50 grams
Fritter alloy pig is put into carries aperture below（1.3 millimeters of diameter）Quartz ampoule in after, then the quartz ampoule equipped with fritter alloy
It puts induction furnace into, waits for working chamber vacuum to 2 × 10-3Pa, then carry out induction melting；Wait for that fritter alloy becomes alloy by solid and melts
Body, and after the temperature of alloy melt reaches preset temperature, the alloy melt in quartz ampoule is sprayed onto height with high-purity argon gas immediately
The copper roller surface of speed rotation, forms Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS.
（4）The corrosion of electrode：The Cu of above-mentioned preparation46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS takes calculation amount as electrode
40% 3 milliliters of hydrofluoric acid solution is added deionized water, is configured to the dilute hydrofluoric acid solution of 500 milliliters of respective concentration；It takes and wants rotten
The electrode of erosion, which is put into corresponding hydrofluoric acid solution, corrodes the regular hour.The electrode corroded is placed in anhydrous hexanol, is used
Ultrasonic cleaning 5 minutes is subsequently placed in aquae destillata and cleans 5 minutes, is finally placed in sky beaker, dried up with hair-dryer.
（5）Electrode catalyst restores carbon dioxide experiment：At normal temperatures and pressures, experiment carries out in H-type quartz electrode cell.With
Electrolytic cell is divided into cathode chamber and anode chamber by proton exchange membrane, and above-mentioned two Room electrolyte is 0.15 mol/L saleratus
Aqueous solution, the Cu after above-mentioned corrosion46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS, platinized platinum, saturated calomel electrode make work electricity respectively
Pole, to electrode and reference electrode.The method for taking timing sampling takes sample, and qualitative and quantitative point is carried out with gas chromatograph
Analysis.Before electrode catalyst restores carbon dioxide experiment, nitrogen is first passed through in cathode chamber electrolyte 30 minutes to remove in electrolyte
Oxygen is being passed through carbon dioxide 30 minutes, and the gas concentration lwevel in catholyte is made to reach saturation, in experimentation, holds
Continuous to be constantly passed through carbon dioxide, 30 ml/mins are lived in flow control.
Embodiment 3
Cu46Zr44.5Al7.5Y2It is prepared by AMORPHOUS ALLOY RIBBONS
（1）Dispensing：Experiment simple substance raw material used is all made of purity and is not less than 99.9 %（Mass percent）Cu, Zr, Al and Y.
The quality of above-mentioned simple substance raw material is weighed up using precision electronic balance, the gross mass of above-mentioned simple substance raw material is 100 grams.Then oil is used
Ether and absolute ethyl alcohol carry out ultrasonic cleaning to above-mentioned simple substance raw material, and finally above-mentioned simple substance raw material is mixed and is put into tungsten electrode magnetic
It controls inside electric arc furnaces.
（2）Foundry alloy melting：Tungsten electrode magnetic control arc stove working chamber is evacuated to 7 × 10-4Pa, then be passed through purity and be
99.99%（Mass percent）High-purity argon gas.Titanium is melted, by Titanium at high temperature strong oxidation reaction with
The partial pressure of oxygen in working chamber is further decreased, then the above-mentioned simple substance raw material of melting again, becomes mother alloy ingot.It is female to ensure
The chemical composition uniformity of alloy cast ingot, mother alloy ingot turn refining 5 times.After the completion of melting, mother alloy ingot is with tungsten electrode magnetic control electricity
Arc stove is cooled to room temperature, and is then opened tungsten electrode magnetic control arc stove and is taken out mother alloy ingot.
（3）It is prepared by electrode：After above-mentioned melted master alloy ingot descale, it is crushed to fritter；Then by 50 grams
Fritter alloy pig is put into carries aperture below（1.3 millimeters of diameter）Quartz ampoule in after, then the quartz ampoule equipped with fritter alloy
It puts induction furnace into, waits for working chamber vacuum to 2 × 10-3Pa, then carry out induction melting；Wait for that fritter alloy becomes alloy by solid and melts
Body, and after the temperature of alloy melt reaches preset temperature, the alloy melt in quartz ampoule is sprayed onto height with high-purity argon gas immediately
The copper roller surface of speed rotation, forms Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS.
（4）The corrosion of electrode：The Cu of above-mentioned preparation46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS takes calculation amount as electrode
40% 1.5 milliliters of hydrofluoric acid solution is added deionized water, is configured to the dilute hydrofluoric acid solution of 500 milliliters of respective concentration；It takes and wants
The electrode of corrosion, which is put into corresponding hydrofluoric acid solution, corrodes the regular hour.The electrode corroded is placed in anhydrous hexanol,
With ultrasonic cleaning 5 minutes, it is subsequently placed in aquae destillata and cleans 5 minutes, be finally placed in sky beaker, dried up with hair-dryer.
（5）Electrode catalyst restores carbon dioxide experiment：At normal temperatures and pressures, experiment carries out in H-type quartz electrode cell.With
Electrolytic cell is divided into cathode chamber and anode chamber by proton exchange membrane, and above-mentioned two Room electrolyte is 0.2 mol/L saleratus water
Solution, the Cu after above-mentioned corrosion46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS, platinized platinum, saturated calomel electrode make respectively working electrode,
To electrode and reference electrode.The method for taking timing sampling takes sample, and quantification and qualification is carried out with gas chromatograph.
Before electrode catalyst restores carbon dioxide experiment, nitrogen is first passed through in cathode chamber electrolyte 30 minutes to remove the oxygen in electrolyte
Gas is being passed through carbon dioxide 30 minutes, and the gas concentration lwevel in catholyte is made to reach saturation, in experimentation, continues
It is constantly passed through carbon dioxide, 10 ml/mins are lived in flow control.
Claims (4)
1. a kind of method of electrochemically reducing carbon dioxide, which is characterized in that the cu-based amorphous alloys that the method uses are
Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS, ingredient and atomic percent are：46%Cu, 44.5%Zr, 7.5%Al, 2%Y；First
Prepare Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS, will in potassium bicarbonate solution then under normal temperature and pressure
Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS is as working electrode, using potassium bicarbonate solution as electrode solution, using carbon dioxide as carbon
Resource, electrochemically reducing carbon dioxide；
Specific preparation process is as follows：
（1）Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS prepares dispensing：Experiment simple substance raw material used is all made of purity and is not less than 99.9
%（Mass percent）Cu, Zr, Al and Y；The quality of above-mentioned simple substance raw material is weighed up using precision electronic balance, above-mentioned simple substance is former
The gross mass of material is 100 grams；Then ultrasonic cleaning is carried out to above-mentioned simple substance raw material with petroleum ether and absolute ethyl alcohol, finally upper
It states simple substance raw material and is mixed and be put into inside tungsten electrode magnetic control arc stove；
（2）Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS prepares foundry alloy melting：Tungsten electrode magnetic control arc stove working chamber is evacuated to
7×10-4Pa, then it is 99.99% to be passed through purity（Mass percent）High-purity argon gas；Titanium is melted, is existed by Titanium
Strong oxidation reaction to be to further decrease the partial pressure of oxygen in working chamber under high temperature, then the above-mentioned simple substance raw material of melting again, makes it
As mother alloy ingot；After the completion of melting, mother alloy ingot is cooled to room temperature with tungsten electrode magnetic control arc stove, takes out master alloy casting
Ingot；
（3）Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS prepares electrode preparation：By above-mentioned melted master alloy ingot descale
Afterwards, it is crushed to fritter；Then 50 grams of fritter alloy pig is put into and carries aperture below（1-1.5 millimeters of diameter）Quartz ampoule
After interior, then the quartz ampoule equipped with fritter alloy put into induction furnace, waits for working chamber vacuum to 2 × 10-3Pa, then carry out induction and melt
Refining；After waiting for that fritter alloy becomes alloy melt by solid, and the temperature of alloy melt reaches preset temperature, high-purity argon is used immediately
Alloy melt in quartz ampoule is sprayed onto high-speed rotating copper roller surface by gas, forms Cu46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS；
（4）The corrosion of electrode：The Cu of above-mentioned preparation46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS takes 40% hydrogen of calculation amount as electrode
Deionized water is added in 1-3 milliliters of fluorspar acid solution；
（5）Electrode catalyst restores carbon dioxide：At normal temperatures and pressures, experiment carries out in H-type quartz electrode cell；Use proton exchange
Electrolytic cell is divided into cathode chamber and anode chamber by film, and above-mentioned two Room electrolyte is potassium bicarbonate aqueous solution, electrode catalyst reduction
It is first passed through nitrogen before carbon dioxide, in cathode chamber electrolyte 30 minutes to remove the oxygen in electrolyte, is being passed through carbon dioxide
30 minutes, the gas concentration lwevel in catholyte is made to reach saturation, be continuously passed through carbon dioxide, flow control is lived
10-30 ml/mins.
2. a kind of method of electrochemically reducing carbon dioxide according to claim 1, which is characterized in that described
Foundry alloy melting prepared by Cu46Zr44.5Al7.5Y2 AMORPHOUS ALLOY RIBBONSs, the chemical composition to ensure mother alloy ingot are uniform
Property, mother alloy ingot at least needs to turn refining 5 times.
3. a kind of method of electrochemically reducing carbon dioxide according to claim 1, which is characterized in that the corruption of the electrode
Erosion,
The electrode corroded is placed in anhydrous hexanol, with ultrasonic cleaning 5 minutes, is subsequently placed in aquae destillata and cleans 5 minutes,
It is finally placed in sky beaker, is dried up with hair-dryer.
4. a kind of method of electrochemically reducing carbon dioxide according to claim 1, which is characterized in that the electrode catalyst
Restore the Cu after carbon dioxide corrosion46Zr44.5Al7.5Y2AMORPHOUS ALLOY RIBBONS, platinized platinum, saturated calomel electrode make work electricity respectively
Pole, to electrode and reference electrode；The method for taking timing sampling takes sample, and qualitative and quantitative point is carried out with gas chromatograph
Analysis.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111074294A (en) * | 2019-12-12 | 2020-04-28 | 中国科学技术大学 | Method for preparing carbon-containing compound by electrocatalysis of carbon dioxide with copper alloy material |
| CN111203219A (en) * | 2020-03-05 | 2020-05-29 | 南昌大学 | Copper-based catalyst for preparing formic acid from carbon dioxide, preparation method and application |
| CN111389407A (en) * | 2020-05-12 | 2020-07-10 | 辽宁大学 | Copper-based amorphous alloy catalyst and preparation method and application thereof |
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Application publication date: 20180817 |