CN114824323A - Method for preparing oxygen reduction catalyst - Google Patents
Method for preparing oxygen reduction catalyst Download PDFInfo
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- CN114824323A CN114824323A CN202210268333.7A CN202210268333A CN114824323A CN 114824323 A CN114824323 A CN 114824323A CN 202210268333 A CN202210268333 A CN 202210268333A CN 114824323 A CN114824323 A CN 114824323A
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- carbon black
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- 239000003054 catalyst Substances 0.000 title claims abstract description 71
- 230000009467 reduction Effects 0.000 title claims abstract description 68
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 67
- 239000001301 oxygen Substances 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims description 13
- 239000006229 carbon black Substances 0.000 claims abstract description 79
- 239000002904 solvent Substances 0.000 claims abstract description 26
- 238000005406 washing Methods 0.000 claims abstract description 26
- 238000000197 pyrolysis Methods 0.000 claims abstract description 20
- 241000872198 Serjania polyphylla Species 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims description 15
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 230000035484 reaction time Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 230000003197 catalytic effect Effects 0.000 abstract description 20
- 239000003795 chemical substances by application Substances 0.000 abstract description 18
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract description 12
- 238000002360 preparation method Methods 0.000 abstract description 11
- 229910052697 platinum Inorganic materials 0.000 abstract description 5
- 150000002500 ions Chemical class 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- 229910000510 noble metal Inorganic materials 0.000 abstract description 3
- 238000006722 reduction reaction Methods 0.000 description 60
- 239000000243 solution Substances 0.000 description 43
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 26
- 229910052757 nitrogen Inorganic materials 0.000 description 13
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 229910052717 sulfur Inorganic materials 0.000 description 9
- 239000011593 sulfur Substances 0.000 description 9
- 238000002441 X-ray diffraction Methods 0.000 description 8
- 238000000024 high-resolution transmission electron micrograph Methods 0.000 description 7
- 238000001878 scanning electron micrograph Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- YHYBMYFOAAUSRR-UHFFFAOYSA-N [C].[Pt]=O Chemical compound [C].[Pt]=O YHYBMYFOAAUSRR-UHFFFAOYSA-N 0.000 description 4
- 239000003575 carbonaceous material Substances 0.000 description 4
- 239000003599 detergent Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000010757 Reduction Activity Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- DSVGQVZAZSZEEX-UHFFFAOYSA-N [C].[Pt] Chemical compound [C].[Pt] DSVGQVZAZSZEEX-UHFFFAOYSA-N 0.000 description 1
- 229940077388 benzenesulfonate Drugs 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- -1 sodium alkyl benzene Chemical class 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/9075—Catalytic material supported on carriers, e.g. powder carriers
- H01M4/9083—Catalytic material supported on carriers, e.g. powder carriers on carbon or graphite
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M2004/8678—Inert electrodes with catalytic activity, e.g. for fuel cells characterised by the polarity
- H01M2004/8689—Positive electrodes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a preparation method of an oxygen reduction catalyst, which comprises the following steps: mixing carbon black with a washing agent-solvent solution, and reacting to obtain a doped carbon black solution; and carrying out high-temperature pyrolysis on the doped carbon black solution at 900-1000 ℃ to obtain the oxygen reduction catalyst. The oxygen reduction catalyst prepared by the preparation method of the oxygen reduction catalyst provided by the invention has higher catalytic activity. In addition, the original platinum base is replaced by the washing agent, so that the raw material source is simple and the cost is low; in addition, the preparation method has fewer steps and is simple to operate; the preparation method provided by the invention can be suitable for various non-noble metal ions and has certain universality.
Description
Technical Field
The invention relates to the technical field of oxygen reduction catalysts, in particular to a preparation method of an oxygen reduction catalyst.
Background
The reduction of oxygen at the cathode of a fuel cell requires a high activation energy, and an oxygen reduction catalyst is added to the cathode in order to increase the oxygen reduction activity of the cathode. At present, a platinum carbon oxygen reduction catalyst and a nitrogen element doped carbon material oxygen reduction catalyst are more commonly used oxygen reduction catalysts, but the platinum carbon oxygen reduction catalyst needs to use platinum element and has higher cost, and the nitrogen element doped carbon material oxygen reduction catalyst has poorer catalytic activity. Therefore, how to provide an oxygen reduction catalyst with high catalytic activity and low cost is a problem to be solved.
Disclosure of Invention
The invention mainly aims to provide a preparation method of an oxygen reduction catalyst, aiming at obtaining the oxygen reduction catalyst with high catalytic activity and low cost.
In order to achieve the above object, the present invention provides a method for preparing an oxygen reduction catalyst, comprising the steps of:
mixing carbon black with a washing agent-solvent solution, and reacting to obtain a doped carbon black solution;
and carrying out high-temperature pyrolysis on the doped carbon black solution at 900-1000 ℃ to obtain the oxygen reduction catalyst.
Optionally, in the step of mixing the carbon black with the washability-solvent solution and obtaining the doped carbon black solution after reaction, the mass ratio of the carbon black to the washability is (0.8-1.2): 1.
optionally, in the step of mixing the carbon black with the washability-solvent solution and obtaining the doped carbon black solution after reaction, the mass ratio of the carbon black to the washability is 1: 1.
optionally, in the warfarin-solvent solution, the solvent is water, ethanol, or methanol.
Optionally, in the warfarin-solvent solution, the solvent is water.
Optionally, in the step of mixing the carbon black with the washrin-solvent solution and obtaining the doped carbon black solution after the reaction, the reaction temperature is 20-50 ℃.
Optionally, in the step of mixing the carbon black with the washing solvent solution and reacting to obtain the doped carbon black solution, the reaction time is 5-6 hours.
Optionally, in the step of mixing the carbon black with the washrin-solvent solution and obtaining the doped carbon black solution after the reaction, the reaction is carried out under ultrasonic conditions.
Optionally, the high-temperature pyrolysis time is 2.5-3.5 h.
In the technical scheme of the invention, the carbon black has larger specific surface area, so that the activity of the oxygen reduction catalyst is improved; the washing agent can generate bubbles by itself, the bubbles contain nitrogen and sulfur elements, the bubbles are beneficial to increasing the specific surface area of the oxygen reduction catalyst structure, more catalytic active sites are exposed, and the nitrogen and sulfur elements can form effective catalytic active sites by doping in carbon black, so that the activity of the oxygen reduction catalyst is further improved; by carrying out high-temperature pyrolysis on the doped carbon black solution, nitrogen and sulfur elements in the washing agent are doped into the carbon black under the action of high-temperature pyrolysis to form a defect structure, so that the catalytic capability is enhanced. In conclusion, the oxygen reduction catalyst obtained finally has higher catalytic activity. In addition, the original platinum base is replaced by the washing agent, so that the raw material source is simple and the cost is low; in addition, the preparation method has few steps and simple operation; the preparation method provided by the invention can be suitable for various non-noble metal ions and has certain universality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other related drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a Scanning Electron Micrograph (SEM) of an oxygen reduction catalyst prepared in example 1 of the present invention;
FIG. 2 is a High Resolution Transmission Electron Micrograph (HRTEM) of an oxygen reduction catalyst prepared in example 1 of the present invention;
FIG. 3 is an X-ray diffraction (XRD) pattern of an oxygen-reducing catalyst prepared in example 1 of the present invention;
FIG. 4 shows the results of oxygen reduction electrocatalytic activity (LSV) measurements in examples of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments.
It should be noted that those whose specific conditions are not specified in the examples were performed according to the conventional conditions or the conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The reduction of oxygen at the cathode of a fuel cell requires a high activation energy, and an oxygen reduction catalyst is added to the cathode in order to increase the oxygen reduction activity of the cathode. At present, a platinum carbon oxygen reduction catalyst and a nitrogen element doped carbon material oxygen reduction catalyst are more commonly used oxygen reduction catalysts, but the platinum carbon oxygen reduction catalyst needs to use platinum element and has higher cost, and the nitrogen element doped carbon material oxygen reduction catalyst has poorer catalytic activity. Therefore, how to provide an oxygen reduction catalyst with high catalytic activity and low cost is a problem to be solved.
In view of this, the present invention provides a method for preparing an oxygen reduction catalyst, as shown in fig. 1, the method comprising the steps of:
and step S10, mixing the carbon black with the washing agent-solvent solution, and reacting to obtain the doped carbon black solution.
Carbon black is a black powdery substance having high dispersibility, which is produced by incomplete combustion of a hydrocarbon substance. The main component is carbon, and the carbon black particles are nearly spherical and have a large specific surface area.
The detergent, also called as liquid detergent, is one of the most commonly used washing products in daily life. The main raw material is sodium alkyl benzene sulfonate. The diluted and dissolved washing agent can generate bubbles by itself, and the bubbles contain nitrogen and sulfur elements, so that the bubbles are helpful for increasing the specific surface area of the synthetic material and exposing more catalytic active sites; and the doping of nitrogen and sulfur elements in the carbon black can form effective catalytic active sites to enhance the oxygen reduction catalytic reaction.
The carbon black reacts with the washability agent to obtain carbon black doped with the washability agent, and thus, the solution containing the carbon black doped with the washability agent, i.e., the doped carbon black solution, is obtained through step S10.
Further, in step S10, the mass ratio of the carbon black to the detergency builder is (0.8 to 1.2): 1. for example, the mass ratio of carbon black to detergency is 0.8: 1, the mass ratio of the carbon black to the detergent is 1: 1, the mass ratio of the carbon black to the detergent is 1.2: 1, and so on. Preferably, in the embodiment of the present invention, the mass ratio of the carbon black and the detergency is 1: 1.
in the embodiment of the present invention, in the warfarin-solvent solution, the solvent is water, ethanol or methanol. Preferably, the solvent is water.
In step S10, the reaction temperature is 20-50 ℃. For example, the reaction temperature is 20 ℃, the reaction temperature is 35 ℃, and the reaction temperature is 50 ℃. In the present embodiment, it is preferable that the temperature of the reaction is 35 ℃.
In the step S10, the reaction time is 5-6 h. For example, the reaction time is 5h, 5.5h or 6 h. The preferred reaction time is 5 h.
Further, in step S10, the reaction is performed under ultrasonic conditions. Therefore, the carbon black and the washing agent-solvent solution are mixed more uniformly, namely the carbon black and the washing agent are mixed more uniformly, and the obtained carbon black doped with the washing agent has better doping effect and higher quality.
And step S20, carrying out high-temperature pyrolysis on the doped carbon black solution at 900-1000 ℃ to obtain the oxygen reduction catalyst.
By carrying out high-temperature pyrolysis on the doped carbon black solution, nitrogen and sulfur elements in the washing agent are doped into the carbon black under the action of high-temperature pyrolysis to form a defect structure, so that the catalytic capability is enhanced.
Further, the temperature of the high-temperature pyrolysis is 900-1000 ℃. Such as 900 deg.C, 950 deg.C or 1000 deg.C. The temperature of the high-temperature pyrolysis is 900 ℃ preferably in the embodiment of the invention.
In addition, the high-temperature pyrolysis time is 2.5-3.5 h. Such as 2.5h, 3h or 3.5h, etc. The temperature of the high-temperature pyrolysis is preferably 3 hours in the embodiment of the invention.
In the technical scheme of the invention, the carbon black has larger specific surface area, so that the activity of the oxygen reduction catalyst is improved; the washing agent can generate bubbles by itself, the bubbles contain nitrogen and sulfur elements, the bubbles are beneficial to increasing the specific surface area of the oxygen reduction catalyst structure, more catalytic active sites are exposed, and the nitrogen and sulfur elements can form effective catalytic active sites by doping in carbon black, so that the activity of the oxygen reduction catalyst is further improved; by carrying out high-temperature pyrolysis on the doped carbon black solution, nitrogen and sulfur elements in the washing agent are doped into the carbon black under the action of high-temperature pyrolysis to form a defect structure, so that the catalytic capability is enhanced. In conclusion, the oxygen reduction catalyst obtained finally has higher catalytic activity. In addition, the original platinum base is replaced by the washing agent, so that the raw material source is simple and the cost is low; in addition, the preparation method has fewer steps and is simple to operate; the preparation method provided by the invention can be suitable for various non-noble metal ions and has certain universality.
The technical solutions of the present invention are further described in detail below with reference to specific examples and drawings, it should be understood that the following examples are merely illustrative of the present invention and are not intended to limit the present invention.
Example 1
(1) Mixing carbon black and a washing agent-water solution, and reacting for 5 hours at the temperature of 35 ℃ and under the ultrasonic condition to obtain a doped carbon black solution, wherein the mass ratio of the carbon black to the washing agent is 1: 1.
(2) and carrying out high-temperature pyrolysis on the doped carbon black solution for 3h at 900 ℃ to obtain the oxygen reduction catalyst.
The oxygen reduction catalyst prepared in example 1 was subjected to scanning detection by an electron microscope, high-resolution transmission detection by an electron microscope and X-ray diffractionThe Scanning Electron Micrograph (SEM) was shown in FIG. 1, the high-resolution transmission electron micrograph (HRTEM) was shown in FIG. 2, and the X-ray diffraction (XRD) pattern was shown in FIG. 3. Fig. 1 and 2 show that the oxygen reduction catalyst has a porous network structure which can increase the transmission of ions and expose more catalytically active sites, thereby enhancing the oxygen reduction catalytic activity. FIG. 3 demonstrates that the structure of the catalyst contains S 4 N 4 And C, the existence of C can improve the conductivity, accelerate the electron transfer and is beneficial to accelerating the oxygen reduction reaction rate, S 4 N 4 The presence of (A) can effectively enhance the catalytic performance.
Example 2
(1) Mixing carbon black and a washing agent-water solution, and reacting for 6 hours at the temperature of 35 ℃ under the ultrasonic condition to obtain a doped carbon black solution, wherein the mass ratio of the carbon black to the washing agent is 0.8: 1.
(2) and carrying out high-temperature pyrolysis on the doped carbon black solution at 900 ℃ for 3.5 hours to obtain the oxygen reduction catalyst.
The oxygen reduction catalyst prepared in example 2 was subjected to electron microscope scanning examination, electron microscope high-resolution transmission examination and X-ray diffraction examination, and it was shown from the obtained SEM and HRTEM images that the oxygen reduction catalyst had a porous network structure and that the catalyst contained S as shown from the obtained XRD image 4 N 4 And C.
Example 3
(1) Mixing carbon black and a washing agent-water solution, and reacting for 5.5 hours at the temperature of 20 ℃ and under the ultrasonic condition to obtain a doped carbon black solution, wherein the mass ratio of the carbon black to the washing agent is 1.2: 1.
(2) and carrying out high-temperature pyrolysis on the doped carbon black solution for 2.5h at the temperature of 1000 ℃ to obtain the oxygen reduction catalyst.
The oxygen reduction catalyst obtained in example 3 was subjected to scanning with an electron microscope, high-resolution transmission detection with an electron microscope and X-ray diffraction detection, and it was shown from the obtained SEM and HRTEM images that the oxygen reduction catalyst had a porous network structure and that the catalyst contained S as shown from the obtained XRD image 4 N 4 And C.
Example 4
(1) Mixing carbon black and a washing agent-ethanol solution, and reacting for 5 hours at the temperature of 50 ℃ and under the ultrasonic condition to obtain a doped carbon black solution, wherein the mass ratio of the carbon black to the washing agent is 1: 1.
(2) and carrying out high-temperature pyrolysis on the doped carbon black solution for 3h at 950 ℃ to obtain the oxygen reduction catalyst.
The oxygen reduction catalyst obtained in example 4 was subjected to scanning with an electron microscope, high-resolution transmission detection with an electron microscope and X-ray diffraction detection, and it was shown from the obtained SEM and HRTEM images that the oxygen reduction catalyst had a porous network structure and that the catalyst contained S as shown from the obtained XRD image 4 N 4 And C.
The oxygen reduction electrocatalytic activities (LSV) of the oxygen reduction catalysts prepared in examples 1 to 4 were measured, respectively, while the oxygen reduction electrocatalytic activities of commercially available Pt/C (platinum carbon) oxygen reduction catalysts and C (carbon black) were measured, and the results are shown in fig. 4. As can be seen from FIG. 4, the oxygen reduction electrocatalytic activities of the oxygen reduction catalysts of examples 1 to 4 are far superior to those of carbon black, and are close to those of the Pt/C oxygen reduction catalyst. The preparation method of the oxygen reduction catalyst provided by the invention is demonstrated, and the obtained oxygen reduction catalyst has higher catalytic activity.
The above is only a preferred embodiment of the present invention, and it is not intended to limit the scope of the invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall be included in the scope of the present invention.
Claims (9)
1. A method for preparing an oxygen reduction catalyst, comprising the steps of:
mixing carbon black with a washing agent-solvent solution, and reacting to obtain a doped carbon black solution;
and carrying out high-temperature pyrolysis on the doped carbon black solution at 900-1000 ℃ to obtain the oxygen reduction catalyst.
2. The method for producing an oxygen-reducing catalyst according to claim 1, wherein in the step of mixing carbon black with a washingagent-solvent solution and reacting the mixture to obtain a doped carbon black solution, the mass ratio of the carbon black to the washingagent is (0.8 to 1.2): 1.
3. the method for preparing an oxygen-reducing catalyst according to claim 2, wherein in the step of mixing carbon black with a washrin-solvent solution and reacting to obtain the doped carbon black solution, the mass ratio of the carbon black to the washrin is 1: 1.
4. the method of preparing an oxygen-reducing catalyst according to claim 1, wherein the solvent in the washrope-solvent solution is water, ethanol or methanol.
5. The method of preparing an oxygen-reducing catalyst according to claim 4, wherein the solvent in the washrope-solvent solution is water.
6. The method for preparing an oxygen reduction catalyst according to claim 1, wherein in the step of mixing the carbon black with the washrope-solvent solution and reacting to obtain the doped carbon black solution, the reaction temperature is 20 to 50 ℃.
7. The method for preparing an oxygen reduction catalyst according to claim 1, wherein in the step of mixing the carbon black with the washrope-solvent solution and reacting to obtain the doped carbon black solution, the reaction time is 5-6 hours.
8. The method for preparing an oxygen-reducing catalyst according to claim 1, wherein the step of mixing the carbon black with the washrope-solvent solution to obtain the doped carbon black solution after the reaction, wherein the reaction is performed under ultrasonic conditions.
9. The method of preparing an oxygen-reducing catalyst according to claim 1, wherein the pyrolysis time is 2.5 to 3.5 hours.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544521A (en) * | 2012-01-09 | 2012-07-04 | 中国科学院宁波材料技术与工程研究所 | Sulfur-doped carbon material or sulfur-nitrogen-doped carbon material and preparation method and application thereof |
| CN106654306A (en) * | 2016-11-25 | 2017-05-10 | 广西大学 | Preparation method for sulfur-doped carbon oxygen reduction electrocatalyst |
| CN106904606A (en) * | 2017-03-20 | 2017-06-30 | 中国石油大学(北京) | A kind of preparation method and its obtained doping carbon material of the carbon material that adulterates |
| JP2017202462A (en) * | 2016-05-12 | 2017-11-16 | 昭和電工株式会社 | Oxygen reduction catalyst and method for producing the same |
| CN110534752A (en) * | 2019-08-15 | 2019-12-03 | 上海电力大学 | Iron and nitrogen co-doped carbon-oxygen reduction catalyst and preparation method thereof |
-
2022
- 2022-03-15 CN CN202210268333.7A patent/CN114824323A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544521A (en) * | 2012-01-09 | 2012-07-04 | 中国科学院宁波材料技术与工程研究所 | Sulfur-doped carbon material or sulfur-nitrogen-doped carbon material and preparation method and application thereof |
| JP2017202462A (en) * | 2016-05-12 | 2017-11-16 | 昭和電工株式会社 | Oxygen reduction catalyst and method for producing the same |
| CN106654306A (en) * | 2016-11-25 | 2017-05-10 | 广西大学 | Preparation method for sulfur-doped carbon oxygen reduction electrocatalyst |
| CN106904606A (en) * | 2017-03-20 | 2017-06-30 | 中国石油大学(北京) | A kind of preparation method and its obtained doping carbon material of the carbon material that adulterates |
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