CN114232012A - Ionic liquid modified nano carbon material catalyst and preparation method and application thereof - Google Patents
Ionic liquid modified nano carbon material catalyst and preparation method and application thereof Download PDFInfo
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- 239000003054 catalyst Substances 0.000 title claims abstract description 66
- 229910021392 nanocarbon Inorganic materials 0.000 title claims abstract description 47
- 239000003575 carbonaceous material Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 74
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 25
- 239000001301 oxygen Substances 0.000 claims abstract description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000005289 physical deposition Methods 0.000 claims abstract description 9
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 24
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 23
- 239000006230 acetylene black Substances 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 19
- -1 1-butyl-3-methylimidazole bistrifluoromethane sulfimide salt Chemical compound 0.000 claims description 13
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 10
- 238000009210 therapy by ultrasound Methods 0.000 claims description 9
- 238000001291 vacuum drying Methods 0.000 claims description 9
- 239000003792 electrolyte Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 7
- 238000002390 rotary evaporation Methods 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- 238000011068 loading method Methods 0.000 claims description 6
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- 239000006229 carbon black Substances 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims description 2
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- 229910021389 graphene Inorganic materials 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
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- 229910000474 mercury oxide Inorganic materials 0.000 description 5
- UKWHYYKOEPRTIC-UHFFFAOYSA-N mercury(ii) oxide Chemical compound [Hg]=O UKWHYYKOEPRTIC-UHFFFAOYSA-N 0.000 description 5
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- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/28—Per-compounds
- C25B1/30—Peroxides
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/054—Electrodes comprising electrocatalysts supported on a carrier
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/055—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material
- C25B11/057—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material consisting of a single element or compound
- C25B11/065—Carbon
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
- C25B11/091—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds
- C25B11/095—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds at least one of the compounds being organic
Abstract
The invention discloses an ionic liquid modified nano carbon material catalyst and a preparation method and application thereof, and belongs to the technical field of electrochemical synthesis and catalysis. The ionic liquid is loaded on the nano carbon by utilizing a physical deposition method, and the catalyst has the advantages of solving the problems of high price, low storage capacity and the like of a noble metal catalyst. The prepared ionic liquid modified nano carbon catalyst can efficiently realize electrochemical oxygen reduction and high-selectivity preparation of hydrogen peroxide, and meanwhile, the catalyst keeps higher stability for a long time, is convenient to prepare and low in cost, and has a wide development prospect in hydrogen peroxide preparation through electrosynthesis of oxygen reduction.
Description
Technical Field
The invention relates to the technical field of electrochemical synthesis and catalysis, in particular to an ionic liquid modified nano carbon material catalyst and a preparation method and application thereof.
Background
With the gradual increase of the consumption of non-renewable fossil resources, the search for cleaner energy substitutes meeting the sustainable development requirement of green chemistry to meet the ever-increasing energy demand becomes an urgent problem to be solved. The hydrogen peroxide is an environment-friendly oxidant and is widely applied to the fields of chemical industry, sanitation and environmental remediation. At present, hydrogen peroxide is mainly produced by an anthraquinone oxidation process, but the method has the problems of high energy consumption, low yield, potential safety hazard, impurities in the prepared hydrogen peroxide and the like. In contrast, the preparation of hydrogen peroxide by a two-electron electrochemical oxygen reduction reaction in an aqueous solution using a simple electrochemical device is a green and convenient method, and is attracting much attention. However, in the electrochemical synthesis of hydrogen peroxide reaction system, many electrode materials tend to generate water by competitive four-electron oxygen reduction reaction, but not convert hydrogen peroxide by two-electron oxygen reduction reaction, so that the selectivity of hydrogen peroxide is reduced. Secondly, active sites on the catalyst are easily corroded, and sustainable electrocatalytic behavior is difficult to realize, so that the dilemma that the stability is difficult to improve is still existed while high selectivity of the catalyst is ensured. Therefore, the aim is to research the two-electron oxygen reduction reaction electrosynthesis of hydrogen peroxide, and the core of the technology is to develop a novel efficient and stable electrocatalyst with low cost in order to meet the concept of sustainable development and reduce the use of non-renewable energy sources and have wide development prospect.
Many materials have been identified as viable catalysts for synthesizing hydrogen peroxide by electrocatalytic oxygen reduction so far, such as noble metal-based alloys and transition metal-based composites, which are advanced catalysts for synthesizing hydrogen peroxide by electrocatalytic oxygen reduction, but practical applications thereof are limited due to scarcity of noble metal resources and heavy metal pollution of the environment by transition metals. Compared with the prior art, the nano carbon material has the advantages of rich storage, low price, high specific surface area, high conductivity and the like, is considered to be one of the most potential substitute metal-based catalysts, and has wide application prospect in electrochemistry. However, the application of nanocarbon materials in the electrochemical catalytic synthesis of hydrogen peroxide is still in the early stage of concept validation, and the yield of hydrogen peroxide in the process is usually low, mainly because of the limitation of low selectivity and poor stability of the two-electron oxygen reduction. To solve this problem, the development of a strong catalyst with high activity, high selectivity and long-term stability is essential to achieve efficient electro-reduction of oxygen to hydrogen peroxide.
Disclosure of Invention
The invention aims to provide an ionic liquid modified nano carbon material catalyst, and a preparation method and application thereof.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the ionic liquid modified nano carbon material catalyst is prepared by modifying an ionic liquid on a nano carbon material carrier, wherein the particle size of the carrier is 5-30 nm.
The nano carbon material carrier is one or more of acetylene black, carbon black, graphene and carbon nano tubes.
The ionic liquid is one or more of 1-butyl-3-methylimidazole bistrifluoromethane sulfimide salt (IL4), 1-hexyl-3-methylimidazole bistrifluoromethane sulfimide salt (IL6), 1-decyl-3-methylimidazole bistrifluoromethane sulfimide salt (IL10) and 1-tetradecyl-3-methylimidazole bistrifluoromethane sulfimide salt (IL 14).
In the ionic liquid, the macroscopic color of the cationic alkyl chain length which is less than C10 is a transparent viscous liquid, and the macroscopic color of the cationic alkyl chain length which is more than C10 is white powdery crystals; the density of the ionic liquid is 1.2-1.5 g/cm3(25℃、1atm)。
The ionic liquid modified nano carbon material catalyst is prepared by a physical deposition method, and the preparation method specifically comprises the following steps:
(1) preparing an ionic liquid, a nano carbon material carrier and an isopropanol solvent, and preparing a mixed material;
(2) and (2) loading the ionic liquid on the nano carbon material substrate by using the mixed material obtained in the step (1) through a physical deposition method to obtain the ionic liquid modified nano carbon material catalyst.
In the step (1), the preparation process of the mixed material comprises the following steps: adding the ionic liquid and the nano carbon material into an isopropanol solvent, dispersing, and controlling the dosage of the ionic liquid and the nano carbon material to ensure that the loaded ionic liquid accounts for 10-40% of the weight of the nano carbon material; the proportion of the nano carbon material to the isopropanol solvent is (3-10) mg (1-3) mL.
In the step (2), the physical deposition method is to perform ultrasonic treatment, rotary evaporation and vacuum drying treatment on the mixed material in sequence to obtain the catalyst; wherein: ultrasonic treatment time is 60-120min, rotary steaming temperature is 40-60 ℃, and vacuum drying treatment temperature is 60-100 ℃.
The ionic liquid modified nano carbon material catalyst is applied to the reaction of preparing hydrogen peroxide by electrochemical catalytic oxygen reduction. In the application process of the catalyst: the catalytic reaction is carried out in a single electrolytic cell of a three-electrode system, a working electrode is a ring disk electrode, a reference electrode is a calomel electrode, a counter electrode is a platinum wire electrode, electrolyte is 0.05-0.2 mol/l potassium hydroxide solution, and the reaction voltage is 0-2VRHEThe reaction time is 0.5-2 h.
The ionic liquid modified nano carbon material catalyst is applied to the reaction of preparing hydrogen peroxide by electrochemical catalytic oxygen reduction, and the selectivity of the hydrogen peroxide is 70-95%.
The principle of the invention is as follows:
the nano carbon material carrier used in the invention is provided with a plurality of tiny micropores, when the ionic liquid is deposited on the surface of the carbon nano material carrier, a part of the ionic liquid enters the nanometer micropores, and the shape presented finally is a nano sheet structure (if the tubular carbon nano tube is used as the carrier, the final catalyst is a tubular structure). When hydrogen peroxide is prepared by electrocatalytic oxygen reduction reaction, the ionic liquid can improve the solubility of oxygen, so that the oxygen concentration on the surface and in the pores of the catalyst is improved, and the ionic liquid loaded on the surface of the nano carbon material can also protect active sites of the reaction. Therefore, the addition of the ionic liquid enables the electrocatalytic oxygen reduction reaction to have higher hydrogen peroxide selectivity.
The invention has the following advantages:
1. the invention adopts the carbon nano material modified by the ionic liquid as the catalyst for preparing the hydrogen peroxide by the electrocatalytic oxygen reduction reaction, shows excellent activity and high selectivity, improves the yield of the product and has the selectivity to the hydrogen peroxide as high as 95 percent.
2. The reaction for synthesizing hydrogen peroxide by electrocatalysis of the ionic liquid modified nanocarbon catalyst is carried out at room temperature, the potassium hydroxide aqueous solution is used as the electrolyte, no organic solvent is required to be added, and the method is non-toxic and pollution-free and meets the green chemical standard.
3. The ionic liquid modified nano carbon catalyst is synthesized by adopting a physical deposition method, and the chemical property of the catalyst can be regulated and controlled only by changing the concentration of the ionic liquid.
Drawings
FIG. 1 is a transmission electron microscope image and an element distribution diagram of an ionic liquid modified acetylene black catalyst prepared by the invention; wherein: (a) is a transmission electron micrograph of the catalyst; (b) is the element distribution diagram of the catalyst.
FIG. 2 is a linear sweep voltammogram measured for acetylene black and an ionic liquid modified acetylene black catalyst.
FIG. 3 shows the selectivity of the electrocatalytic oxygen reduction synthesis of hydrogen peroxide measured by acetylene black and an ionic liquid modified acetylene black catalyst.
Detailed Description
For a further understanding of the present invention, the following description is given in conjunction with the examples which are set forth to illustrate, but are not to be construed to limit the present invention, features and advantages.
In the following examples, the mixture was prepared with a ratio of 5mg carrier to 1mL isopropyl alcohol solvent.
When the physical deposition is carried out on the mixed materials, the ultrasonic treatment time is 150min, the rotary evaporation temperature is 50 ℃, and the vacuum drying treatment temperature is 80 ℃.
Example 1
Mixing and stirring ionic liquid 1-butyl-3-methylimidazole bistrifluoromethane sulfimide salt (IL4), Acetylene Black (AB) and isopropanol to prepare a mixed material, and performing ultrasonic treatment, rotary evaporation and vacuum drying to obtain a catalyst IL4@ AB of the ionic liquid (IL4) loaded on the acetylene black, wherein the loading amount of the ionic liquid is 20 wt.%. According to a ratio of catalyst to 0.3 wt.% Nafion solution of 3 mg:1ml of the electrode ink was prepared.
The obtained IL4@ AB catalyst is applied to the reaction of synthesizing hydrogen peroxide by electrocatalytic oxygen reduction, a three-electrode system is adopted, electrode ink loaded with an ionic liquid acetylene black catalyst is used as a working electrode (the electrode ink is 10 mu l), a platinum wire is used as a counter electrode, and a mercury/mercury oxide electrode is used as a reference electrode; in the single electrolytic cell, potassium hydroxide solution with the concentration of 0.1mol/l is used as the electrolyte. The initial overpotential was 0.71V by electrochemical test (FIG. 2)RHEThe selectivity of hydrogen peroxide after the reaction was 70% (fig. 3).
Example 2
Mixing and stirring ionic liquid 1-hexyl-3-methylimidazole bistrifluoromethane sulfimide salt (IL6), Acetylene Black (AB) and isopropanol to prepare a mixed material, and performing ultrasonic treatment, rotary evaporation and vacuum drying to obtain a catalyst IL6@ AB of the ionic liquid (IL6) loaded on the acetylene black, wherein the loading capacity of the ionic liquid is 20 wt%. According to the ratio of the catalyst to the 0.3 wt% Nafion solution of 3 mg:1ml of the electrode ink was prepared.
The obtained IL6@ AB catalyst is applied to the reaction of synthesizing hydrogen peroxide by electro-oxygen reduction, a three-electrode system is adopted, electrode ink loaded with an ionic liquid acetylene black catalyst is used as a working electrode (the electrode ink is 10 mu l), a platinum wire is used as a counter electrode, and a mercury/mercury oxide electrode is used as a reference electrode; in the single electrolytic cell, potassium hydroxide solution with the concentration of 0.1mol/l is used as the electrolyte. The initial overpotential was 0.69V by electrochemical test (FIG. 2)RHEThe selectivity of hydrogen peroxide after the reaction was 74% (fig. 3).
Example 3
Mixing and stirring ionic liquid 1-decyl-3-methylimidazole bistrifluoromethane sulfimide (IL10), Acetylene Black (AB) and isopropanol to prepare a mixed material, and performing ultrasonic treatment, rotary evaporation and vacuum drying to obtain a catalyst IL14@ AB of the ionic liquid (IL10) loaded on the acetylene black, wherein the loading capacity of the ionic liquid is 20 wt%. According to the ratio of the catalyst to the 0.3 wt% Nafion solution of 3 mg:1ml of the electrode ink was prepared.
The obtained IL10@ AB catalyst is applied to the reaction of synthesizing hydrogen peroxide by electro-oxygen reduction, a three-electrode system is adopted, electrode ink loaded with an ionic liquid acetylene black catalyst is used as a working electrode (the electrode ink is 10 mu l), a platinum wire is used as a counter electrode, and a mercury/mercury oxide electrode is used as a reference electrode; in the single electrolytic cell, potassium hydroxide solution with the concentration of 0.1mol/l is used as the electrolyte. The initial overpotential was 0.63V by electrochemical test (FIG. 2)RHEThe selectivity of hydrogen peroxide after the reaction was 83% (fig. 3).
Example 4
Mixing and stirring ionic liquid 1-tetradecyl-3-methylimidazolium bistrifluoromethane sulfimide salt (IL14), Acetylene Black (AB) and isopropanol to prepare a mixed material, and performing ultrasonic treatment, rotary evaporation and vacuum drying to obtain a catalyst IL14@ AB of the ionic liquid (IL14) loaded on the acetylene black, wherein the loading capacity of the ionic liquid is 20 wt% (figure 1). According to the ratio of the catalyst to the 0.3 wt% Nafion solution of 3 mg:1ml of the electrode ink was prepared.
The obtained IL14@ AB catalyst is applied to the reaction of synthesizing hydrogen peroxide by electro-oxygen reduction, a three-electrode system is adopted, electrode ink loaded with an ionic liquid acetylene black catalyst is used as a working electrode (the electrode ink is 10 mu l), a platinum wire is used as a counter electrode, and a mercury/mercury oxide electrode is used as a reference electrode; in the single electrolytic cell, potassium hydroxide solution with the concentration of 0.1mol/l is used as the electrolyte. The initial overpotential was 0.55V by electrochemical test (FIG. 2)RHEThe selectivity of hydrogen peroxide after the reaction was 90% (fig. 3).
Comparative example 1
A three-electrode system is adopted, acetylene black is used as a working electrode, a platinum wire is used as a counter electrode, a mercury/mercury oxide electrode is used as a reference electrode, an experiment of the reaction of synthesizing hydrogen peroxide by electro-oxygen reduction is carried out in a single-chamber electrolytic cell, the used acetylene black electrode ink is 10 mu l, a potassium hydroxide solution with the concentration of 0.1mol/l is used as an electrolyte, and the initial overpotential is 0.65V through electrochemical test (figure 2)RHEThe selectivity of hydrogen peroxide after the reaction was 48% (fig. 3).
Claims (10)
1. An ionic liquid modified nano carbon material catalyst is characterized in that: the catalyst is prepared by modifying an ionic liquid on a nano carbon material carrier, wherein the particle size of the carrier is 5-30 nm.
2. The ionic liquid-modified nanocarbon material catalyst according to claim 1, characterized in that: the nano carbon material carrier is one or more of acetylene black, carbon black, graphene and carbon nano tubes.
3. The ionic liquid-modified nanocarbon material catalyst according to claim 1, characterized in that: the ionic liquid is one or more of 1-butyl-3-methylimidazole bistrifluoromethane sulfimide salt (IL4), 1-hexyl-3-methylimidazole bistrifluoromethane sulfimide salt (IL6), 1-decyl-3-methylimidazole bistrifluoromethane sulfimide salt (IL10) and 1-tetradecyl-3-methylimidazole bistrifluoromethane sulfimide salt (IL 14).
4. The ionic liquid-modified nanocarbon material catalyst according to claim 3, characterized in that: in the ionic liquid, the macroscopic color of the cationic alkyl chain length which is less than C10 is a transparent viscous liquid, and the macroscopic color of the cationic alkyl chain length which is more than C10 is white powdery crystals; the density of the ionic liquid is 1.2-1.5 g/cm3(25℃、1atm)。
5. The method for preparing an ionic liquid modified nanocarbon material catalyst according to claim 1, characterized in that: the catalyst is prepared by a physical deposition method, and specifically comprises the following steps:
(1) preparing an ionic liquid, a nano carbon material carrier and an isopropanol solvent, and preparing a mixed material;
(2) and (2) loading the ionic liquid on the nano carbon material substrate by using the mixed material obtained in the step (1) through a physical deposition method to obtain the ionic liquid modified nano carbon material catalyst.
6. The ionic liquid-modified nanocarbon material catalyst according to claim 5, characterized in that: in the step (1), the preparation process of the mixed material comprises the following steps: adding the ionic liquid and the nano carbon material into an isopropanol solvent, dispersing, and controlling the dosage of the ionic liquid and the nano carbon material to ensure that the loaded ionic liquid accounts for 10-40% of the weight of the nano carbon material; the proportion of the nano carbon material to the isopropanol solvent is (3-10) mg (1-3) mL.
7. The ionic liquid-modified nanocarbon material catalyst according to claim 5, characterized in that: in the step (2), the physical deposition method is to perform ultrasonic treatment, rotary evaporation and vacuum drying treatment on the mixed material in sequence to obtain the catalyst; wherein: ultrasonic treatment time is 60-120min, rotary steaming temperature is 40-60 ℃, and vacuum drying treatment temperature is 60-100 ℃.
8. The use of the ionic liquid modified nanocarbon material catalyst according to claim 1, wherein: the ionic liquid modified nano carbon material catalyst is applied to the reaction of preparing hydrogen peroxide by electrochemical catalytic oxygen reduction.
9. The use of the ionic liquid modified nanocarbon material catalyst according to claim 8, wherein: in the application process of the catalyst: the catalytic reaction is carried out in a single electrolytic cell of a three-electrode system, a working electrode is a ring disk electrode, a reference electrode is a calomel electrode, a counter electrode is a platinum wire electrode, electrolyte is 0.05-0.2 mol/l potassium hydroxide solution, and the reaction voltage is 0-2VRHEThe reaction time is 0.5-2 h.
10. The use of the ionic liquid modified nanocarbon material catalyst according to claim 8, wherein: the ionic liquid modified nano carbon material catalyst is applied to the reaction of preparing hydrogen peroxide by electrochemical catalytic oxygen reduction, and the selectivity of the hydrogen peroxide is 70-95%.
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| CN114808003A (en) * | 2022-05-09 | 2022-07-29 | 浙江工业大学 | Boron-nitrogen co-doped carbon aerogel catalyst and synthesis method and application thereof |
| CN115896838A (en) * | 2022-12-06 | 2023-04-04 | 绍兴七轩新材料科技有限公司 | Preparation and application of ionic liquid modified phthalocyanine metal electrode for preparing hydrogen peroxide by electrochemical oxygen reduction |
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| CN115896838B (en) * | 2022-12-06 | 2023-10-20 | 绍兴七轩新材料科技有限公司 | Preparation and application of ionic liquid modified phthalocyanine metal electrode for preparing hydrogen peroxide by electrochemical oxygen reduction |
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