CN112436154A - Preparation method of fuel cell cathode catalyst nano particle composite material - Google Patents
Preparation method of fuel cell cathode catalyst nano particle composite material Download PDFInfo
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- CN112436154A CN112436154A CN202011381417.9A CN202011381417A CN112436154A CN 112436154 A CN112436154 A CN 112436154A CN 202011381417 A CN202011381417 A CN 202011381417A CN 112436154 A CN112436154 A CN 112436154A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 23
- 239000002105 nanoparticle Substances 0.000 title claims abstract description 22
- 239000000446 fuel Substances 0.000 title claims abstract description 20
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 36
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 239000002114 nanocomposite Substances 0.000 claims abstract description 14
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims abstract description 13
- 229910003264 NiFe2O4 Inorganic materials 0.000 claims abstract description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 4
- 239000002243 precursor Substances 0.000 claims abstract description 4
- 150000002815 nickel Chemical class 0.000 claims description 17
- 229910021389 graphene Inorganic materials 0.000 claims description 15
- 150000002505 iron Chemical class 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 12
- 239000000376 reactant Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 6
- 238000007605 air drying Methods 0.000 claims description 6
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 238000003760 magnetic stirring Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000009210 therapy by ultrasound Methods 0.000 claims description 6
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- 238000011068 loading method Methods 0.000 claims description 3
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 2
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 claims description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 2
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 2
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 2
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 claims description 2
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 claims description 2
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims description 2
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 230000003197 catalytic effect Effects 0.000 abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 abstract description 4
- 239000001301 oxygen Substances 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000001027 hydrothermal synthesis Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000010411 electrocatalyst Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 229910052596 spinel Inorganic materials 0.000 description 2
- 239000011029 spinel Substances 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- 230000001808 coupling effect Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002082 metal nanoparticle Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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Classifications
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- 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
- H01M4/88—Processes of manufacture
- H01M4/8875—Methods for shaping the electrode into free-standing bodies, like sheets, films or grids, e.g. moulding, hot-pressing, casting without support, extrusion without support
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- 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
- H01M4/8647—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites
-
- 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
- H01M4/9016—Oxides, hydroxides or oxygenated metallic salts
-
- 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
- H01M2004/8684—Negative electrodes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention discloses a preparation method of a fuel cell cathode catalyst nano particle composite material, which utilizes a carbon nano tube as a precursor under the hydrothermal condition and NiFe in the synthesis process2O4Nano particles are directly nucleated, uniformly grow and are anchored on the carbon nano tube, and simultaneously nitrogen is doped into the carbon nano tube framework structure, so that NiFe is realized2O4The uniform load of the nano particles on the nitrogen-doped Carbon Nano Tube (CNT) is adopted to prepare the NiFe2O4A/CNT nanocomposite material. The invention has the advantages that the hydrothermal method has simple preparation method, low reaction temperature and no need of subsequent treatment conditions, and the composite material has the function of oxygen reduction reactionExcellent catalytic activity and stability, NiFe prepared by said invention2O4the/CNT nano composite material can be used for a fuel cell cathode catalyst, and can also be applied to the fields of sensors, supercapacitors and the like.
Description
Technical Field
The invention relates to a preparation method of a fuel cell cathode catalyst nano particle composite material, in particular to a preparation method of a carbon-based transition metal doped non-metal nano particle composite material under a spinel structure.
Background
The fuel cell technology is considered as a clean new energy technology which can occupy an important position in the future due to the advantages of high energy conversion efficiency, zero emission or low emission, abundant fuel sources and the like, and is one of important technical means for solving the problems of energy shortage and environmental pollution in the future. The biggest obstacle hindering the large-scale commercial application of fuel cells is the cost problem caused by using Pt as a catalyst, so research and development of a non-platinum cathode catalyst with wide raw material source, low cost and high ORR catalytic activity to replace an expensive Pt catalyst is the most key technology for reducing the cost of fuel cells and promoting the large-scale commercial application of fuel cells.
Carbon nanotubes are an ideal electrocatalyst support material due to their small size, large surface area, low density, high electrical conductivity and high thermal conductivity. The carbon nano tube is used as a carbon carrier, and the design and preparation of an economic, efficient and stable oxygen reduction catalyst is used as a main research target, so that a novel carbon-based electrocatalyst synthesis method is developed. Due to NiFe2O4Strong coupling and synergistic effect are generated between the nano particles and the graphene carbon nano tubes, NiFe2O4the/CNT nanocomposite shows excellent catalytic activity and stability to ORR.
Disclosure of Invention
The invention aims to provide a preparation method of a fuel cell cathode catalyst nano particle composite material.
The purpose of the invention is realized by the following scheme: fuel cell cathode catalyst nano particleThe preparation method of the composite material utilizes the carbon nano tube as a precursor under the hydrothermal condition, and NiFe is generated in the synthesis process2O4Nano particles are directly nucleated, uniformly grow and are anchored on the carbon nano tube, and simultaneously nitrogen is doped into the carbon nano tube framework structure, so that NiFe is realized2O4The NiFe is prepared by uniformly loading the nano particles on the nitrogen-doped Carbon Nano Tube (CNT)2O4the/CNT nanocomposite material comprises the following steps:
(1) respectively weighing 0.1-0.5 g of iron salt and nickel salt, and placing the iron salt and the nickel salt in a beaker so that the molar ratio of the iron salt to the nickel salt is 2: 1; then weighing 0.02 g-0.1 g of graphene carbon nanotubes and placing the graphene carbon nanotubes in another beaker;
(2) adding 20mL of ethanol into the two beakers, firstly carrying out ultrasonic treatment on the beaker solution filled with the graphene carbon nanotubes for 1 hour, then mixing the two beaker solutions, carrying out magnetic stirring at the speed of 600 r/min for 2 hours, and dropwise adding 0.5 mL of 28% ammonia water solution while stirring;
(3) stirring the solution in a water bath at 80 ℃ for 10 hours, and drying the solution at 80 ℃ for 5 hours to obtain a reactant;
(4) transferring the reactant into a 50 mL high-pressure reaction kettle, putting the reaction kettle into a forced air drying oven to react for 3-5 h at 160-180 ℃, and cooling to room temperature to obtain a product;
(5) centrifugally cleaning the product obtained in the step (4) by using deionized water at the speed of 10000 r/min for 5 min, and drying at 50 ℃ to obtain the NiFe2O4A/CNT nanocomposite material.
Wherein, the ferric salt in the step (1) is at least one of ferric chloride, ferric nitrate and ferric sulfate; the nickel salt is at least one of nickel chloride, nickel nitrate and nickel sulfate.
The invention has the advantages that the hydrothermal method is simple in preparation method, low in reaction temperature and free of subsequent treatment conditions, the composite material has excellent catalytic activity and stability for oxygen reduction reaction, and the NiFe prepared by the invention2O4the/CNT nano composite material can be used for a fuel cell cathode catalyst, and can also be applied to the fields of sensors, supercapacitors and the like. The method for preparing NiFe by doping non-metallic nano particles with carbon-based transition metal under a spinel structure is relatively simple2O4A CNT nanocomposite, which has excellent catalytic activity and stability for oxygen reduction reaction. Therefore, the composite material can be used as a high-efficiency fuel cell cathode catalyst, and can also be applied to the fields of sensors, supercapacitors and the like. The method for preparing the catalyst can be further developed and applied in the field of preparation of other materials.
Drawings
FIG. 1 is NiFe2O4The SEM image of the/CNT nano material shows that the obtained material is nano particles, the size is 5-10nm, the size distribution is uniform, the smaller size has larger specific surface area, and the active sites of the material can be promoted when the material is used for catalyzing, so that the material has better catalytic property.
Detailed Description
Example 1:
a nano-particle composite material of fuel cell cathode catalyst features that under hydrothermal condition, the carbon nanotubes are used as precursor and NiFe is used in synthesizing process2O4Nano particles are directly nucleated, uniformly grow and are anchored on the carbon nano tube, and simultaneously nitrogen is doped into the carbon nano tube framework structure, so that NiFe is realized2O4The NiFe is prepared by uniformly loading the nano particles on the nitrogen-doped Carbon Nano Tube (CNT)2O4the/CNT nano composite material is prepared by the following steps:
(1) 0.1g of iron salt and nickel salt are weighed into a beaker respectively, so that the molar ratio of the iron salt to the nickel salt is 2: 1; then 0.02g of graphene carbon nanotubes are weighed and placed in another beaker;
(2) adding 20mL of ethanol into the two beakers, firstly carrying out ultrasonic treatment on the beaker solution filled with the graphene carbon nanotubes for 1 hour, then mixing the two beaker solutions, carrying out magnetic stirring at the speed of 600 r/min for 2 hours, and dropwise adding 0.5 mL of 28% ammonia water solution while stirring;
(3) stirring the solution in a water bath at 80 ℃ for 10 hours, and drying the solution at 80 ℃ for 5 hours to obtain a reactant;
(4) transferring the reactant into a 50 mL high-pressure reaction kettle, putting the reaction kettle into a forced air drying oven to react for 3 h at 160 ℃, and cooling to room temperature to obtain a product;
(5) centrifugally cleaning the product obtained in the step (4) by using deionized water at the speed of 10000 r/min for 5 min, and drying at 50 ℃ to obtain the NiFe2O4A/CNT nanocomposite material. NiFe2O4The SEM image of the/CNT nano material is shown in figure 1, and the obtained material is nano particles with the size of 5-10nm, the size distribution is uniform, and the smaller size has larger specific surface area, so that the active sites of the material can be promoted when the material is used as a catalytic material, and the material has better catalytic property.
Example 2:
the fuel cell anode catalyst nanoparticle composite material is prepared by the following steps, which are similar to the steps of the embodiment:
(1) 0.5g of iron salt and nickel salt are weighed into a beaker respectively, so that the molar ratio of the iron salt to the nickel salt is 2: 1; then 0.06g of graphene carbon nanotubes are weighed and placed in another beaker;
(2) adding 20mL of ethanol into the two beakers, firstly carrying out ultrasonic treatment on the beaker solution filled with the graphene carbon nanotubes for 1 hour, then mixing the two beaker solutions, carrying out magnetic stirring at the speed of 600 r/min for 2 hours, and dropwise adding 0.5 mL of 28% ammonia water solution while stirring;
(3) stirring the solution in a water bath at 80 ℃ for 10 hours, and drying the solution at 80 ℃ for 5 hours to obtain a reactant;
(4) transferring the reactant into a 50 mL high-pressure reaction kettle, putting the reaction kettle into a forced air drying oven to react for 3 h at 160 ℃, and cooling to room temperature to obtain a product;
(5) centrifugally cleaning the product obtained in the step (4) by using deionized water at the speed of 10000 r/min for 5 min, and drying at 50 ℃ to obtain the NiFe2O4the/CNT nanocomposite material is used as a catalyst.
Example 3:
the fuel cell anode catalyst nanoparticle composite material is prepared by the following steps, which are similar to the steps of the embodiment:
(1) 0.3g of iron salt and nickel salt are weighed into a beaker respectively, so that the molar ratio of the iron salt to the nickel salt is 2: 1; then 0.05g of graphene carbon nanotubes are weighed and placed in another beaker;
(2) adding 20mL of ethanol into the two beakers, firstly carrying out ultrasonic treatment on the beaker solution filled with the graphene carbon nanotubes for 1 hour, then mixing the two beaker solutions, carrying out magnetic stirring at the speed of 600 r/min for 2 hours, and dropwise adding 0.5 mL of 28% ammonia water solution while stirring;
(3) stirring the solution in a water bath at 80 ℃ for 10 hours, and drying the solution at 80 ℃ for 5 hours to obtain a reactant;
(4) transferring the reactant into a 50 mL high-pressure reaction kettle, putting the reaction kettle into a forced air drying oven to react for 5 hours at 160 ℃, and cooling the reaction kettle to room temperature to obtain a product;
(5) centrifugally cleaning the product obtained in the step (4) by using deionized water at the speed of 10000 r/min for 5 min, and drying at 50 ℃ to obtain the NiFe2O4the/CNT nanocomposite material is used as a catalyst.
Example 4:
the fuel cell anode catalyst nanoparticle composite material is prepared by the following steps, which are similar to the steps of the embodiment:
(1) 0.155g of iron salt and nickel salt was weighed into a beaker so that the molar ratio of iron salt to nickel salt was 2: 1; then 0.1g of graphene carbon nano tube is weighed and placed in another beaker;
(2) adding 20mL of ethanol into the two beakers, firstly carrying out ultrasonic treatment on the beaker solution filled with the graphene carbon nanotubes for 1 hour, then mixing the two beaker solutions, carrying out magnetic stirring at the speed of 600 r/min for 2 hours, and dropwise adding 0.5 mL of 28% ammonia water solution while stirring;
(3) stirring the solution in a water bath at 80 ℃ for 10 hours, and drying the solution at 80 ℃ for 5 hours to obtain a reactant;
(4) transferring the reactant into a 50 mL high-pressure reaction kettle, putting the reaction kettle into a forced air drying oven to react for 3 h at 180 ℃, and cooling to room temperature to obtain a product;
(5) centrifugally cleaning the product obtained in the step (4) by using deionized water at the speed of 10000 r/min for 5 min, and drying at 50 ℃ to obtain the NiFe2O4the/CNT nanocomposite material is used as a catalyst.
The embodiments described above are described to facilitate an understanding and appreciation of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the embodiments described herein, and those skilled in the art should make improvements and modifications to the present invention based on the disclosure of the present invention within the protection scope of the present invention.
Claims (2)
1. A process for preparing the nm-particle composite material of negative electrode catalyst of fuel cell features that under hydrothermal condition, the carbon nanotubes are used as the precursor of NiFe2O4Nano particles are directly nucleated, uniformly grow and are anchored on the carbon nano tube, and simultaneously nitrogen is doped into the carbon nano tube framework structure, so that NiFe is realized2O4The NiFe is prepared by uniformly loading the nano particles on the nitrogen-doped Carbon Nano Tube (CNT)2O4the/CNT nanocomposite material comprises the following steps:
(1) respectively weighing 0.1-0.5 g of iron salt and nickel salt, and placing the iron salt and the nickel salt in a beaker so that the molar ratio of the iron salt to the nickel salt is 2: 1; then weighing 0.02 g-0.1 g of graphene carbon nanotubes and placing the graphene carbon nanotubes in another beaker;
(2) adding 20mL of ethanol into the two beakers, firstly carrying out ultrasonic treatment on the beaker solution filled with the graphene carbon nanotubes for 1 hour, then mixing the two beaker solutions, carrying out magnetic stirring at the speed of 600 r/min for 2 hours, and dropwise adding 0.5 mL of 28% ammonia water solution while stirring;
(3) stirring the solution in a water bath at 80 ℃ for 10 hours, and drying the solution at 80 ℃ for 5 hours to obtain a reactant;
(4) transferring the reactant into a 50 mL high-pressure reaction kettle, putting the reaction kettle into a forced air drying oven to react for 3-5 h at 160-180 ℃, and cooling to room temperature to obtain a product;
(5) centrifugally cleaning the product obtained in the step (4) by using deionized water at the speed of 10000 r/min for 5 min, and drying at 50 ℃ to obtain the NiFe2O4A/CNT nanocomposite material.
2. The method for preparing the fuel cell anode catalyst nanoparticle composite material according to claim 1, wherein the method comprises the following steps: the ferric salt and the nickel salt in the step (1) are at least one of ferric chloride, ferric nitrate and ferric sulfate; the nickel salt is at least one of nickel chloride, nickel nitrate and nickel sulfate.
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| CN113097499A (en) * | 2021-03-29 | 2021-07-09 | 江苏科技大学 | FeNi/NiFe2O4@ NC composite material and preparation method and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113097499A (en) * | 2021-03-29 | 2021-07-09 | 江苏科技大学 | FeNi/NiFe2O4@ NC composite material and preparation method and application thereof |
| CN113097499B (en) * | 2021-03-29 | 2022-08-26 | 江苏科技大学 | FeNi/NiFe 2 O 4 @ NC composite material and preparation method and application thereof |
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