CN112768709A - Nano blue diamond particle catalyst of fuel cell, preparation method and fuel cell - Google Patents
Nano blue diamond particle catalyst of fuel cell, preparation method and fuel cell Download PDFInfo
- Publication number
- CN112768709A CN112768709A CN202110027250.4A CN202110027250A CN112768709A CN 112768709 A CN112768709 A CN 112768709A CN 202110027250 A CN202110027250 A CN 202110027250A CN 112768709 A CN112768709 A CN 112768709A
- Authority
- CN
- China
- Prior art keywords
- nano
- fuel cell
- conductive diamond
- particles
- particle catalyst
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- H01M4/88—Processes of manufacture
- H01M4/8825—Methods for deposition of the catalytic active composition
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/25—Diamond
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/25—Diamond
- C01B32/26—Preparation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/25—Diamond
- C01B32/28—After-treatment, e.g. purification, irradiation, separation or recovery
-
- 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
- H01M4/9091—Unsupported catalytic particles; loose particulate catalytic materials, e.g. in fluidised state
-
- 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 nano blue diamond particle catalyst of a fuel cell, a preparation method and the fuel cell, wherein the preparation method comprises the following steps: the conductive diamond particles are prepared by an HTHP method or the conductive diamond film is prepared by a CVD method, the conductive diamond particles or the conductive diamond film are crushed into conductive diamond nano particles by a physical means, and the conductive diamond nano particles are subjected to surface modification treatment for making the conductive diamond nano particles have a hydrophobic characteristic or enhancing the hydrogen absorption performance of the conductive diamond nano particles, so that the nano blue diamond particle catalyst is obtained. The nano blue diamond particle catalyst prepared by the preparation method has excellent performance, and the nano blue diamond particle catalyst with hydrophobic property or enhanced hydrogen absorption and energy absorption after surface modification treatment is respectively applied to the cathode or the anode of a fuel cell, so that the catalytic efficiency and the overall efficiency of the fuel cell can be greatly improved, the nano blue diamond particle catalyst can well replace a platinum catalyst to become the catalyst of the fuel cell, and the large-scale application of the fuel cell is facilitated.
Description
Technical Field
The invention belongs to the technical field of fuel cell catalysts, and particularly relates to a nano blue diamond particle catalyst of a fuel cell, a preparation method of the nano blue diamond particle catalyst and the fuel cell.
Background
A Proton Exchange Membrane Fuel Cell (PEMFC) is a fuel cell, and is equivalent to a reverse device for water electrolysis in principle. The single cell consists of anode, cathode and proton exchange membrane, the anode is the place where hydrogen fuel is oxidized, the cathode is the place where oxidant is reduced, both electrodes contain catalyst for accelerating electrochemical reaction of the electrodes, and the proton exchange membrane is used as electrolyte. When working, the power supply is equivalent to a direct current power supply, the anode of the power supply is the negative pole of the power supply, and the cathode of the power supply is the positive pole of the power supply.
The working process of the fuel cell is actually the reverse process of the electrolyzed water, the basic principle of which was proposed as early as 1839 by the british attorney William Robert gruff (William Robert Grove), the first scientist in the world to achieve the reverse reaction of the electrolyzed water and generate the electric current. For a half century, fuel cells have received little attention, except for use in special fields such as aerospace. Only in recent decades, fuel cells have been valued and developed with the increased awareness of environmental protection, energy conservation, and protection of limited natural resources.
The PEMFC technology is currently the most mature technology in the world that can oxidize hydrogen and oxygen in the air into clean water and release electric energy:
1) the hydrogen gas reaches the anode through a pipe or a gas guide plate, and hydrogen molecules are dissociated into positively charged hydrogen ions (i.e., protons) and negatively charged electrons are released under the action of an anode catalyst.
2) The hydrogen ions pass through the electrolyte (proton exchange membrane) to the cathode; the electrons then reach the cathode through an external circuit. The electrons form a current in an external circuit, which through suitable connections can output electrical energy to a load.
3) At the other end of the cell, oxygen (or air) passes through a duct or gas guide to the cathode; under the action of cathode catalyst, oxygen reacts with hydrogen ions and electrons to produce water.
The platinum is an electrocatalyst commonly used in fuel cells, and the d electron orbit of the platinum is not filled and the surface of the platinum is easy to adsorb reactants, so that the platinum has high catalytic activity for the oxidation reaction of anode hydrogen and the reduction reaction of cathode oxygen, and simultaneously has comprehensive excellent characteristics of high temperature resistance, oxidation resistance, corrosion resistance and the like, and is the most important catalyst material. However, the worldwide Pt group metal reserves are only 71000 tons and cannot be manufactured, and the scarcity and high price of Pt severely limit its commercial application and large-scale application of fuel cells. In addition, the Pt/C layer is used as a cathode catalyst layer, is easily oxidized in alcohol fuel to cause CO poisoning, so that the Pt/C layer cannot be applied to alcohol fuel cells, and therefore, the Pt/C layer has very important practical significance for the research of non-Pt catalysts.
Blue diamond is the rarest diamond, has less than one-thousandth of the content of natural diamond, has conductivity due to the boron element, and is also called conductive diamond. The blue diamond integrates various excellent properties, is a material with highest hardness in nature, has excellent heat conduction performance, has no comparable chemical corrosion resistance and radiation resistance, and has the widest electrochemical window. Currently, blue diamonds can be produced by CVD synthetic diamond growth techniques and are therefore the best choice for fuel cell catalysts to replace platinum. However, due to the problem of surface activity of the blue diamond thin film of the blue diamond catalyst, when it is applied to a cathode of a fuel cell, it is blocked from contacting with oxygen because water is easily adhered to its surface, thereby reducing catalytic efficiency and reducing the reaction rate of oxygen and hydrogen ions; when it is applied to an anode of a fuel cell, its contact degree with hydrogen is affected due to its insufficient hydrogen absorption property, thereby decreasing catalytic efficiency. No good solution has been developed at present.
Disclosure of Invention
Based on the above mentioned problems, there is a need to provide a nano blue diamond particle catalyst for fuel cell, a preparation method thereof and a fuel cell.
The technical scheme adopted for solving the technical problems is as follows: a nanometer blue diamond particle catalyst of a fuel cell and a preparation method thereof comprise the following steps: the method comprises the steps of preparing conductive diamond particles through an HTHP method or preparing a conductive diamond film through a CVD method, crushing the conductive diamond particles or the conductive diamond film into conductive diamond nano particles through a physical means, and carrying out surface modification treatment on the conductive diamond nano particles to enable the conductive diamond nano particles to have a hydrophobic characteristic or enhance the hydrogen absorption performance of the conductive diamond nano particles to obtain the nano blue diamond particle catalyst.
Further, the steps of preparing the conductive diamond particles by the HTHP method are: preparing the conductive diamond particles by a catalyst or a graphite or boron source through an oil press under the condition of more than 500 ℃ and more than 10 GPa.
Further, the step of preparing the conductive diamond film by the CVD method includes growing the conductive diamond film on a silicon substrate by a hot filament chemical vapor deposition method or a microwave plasma chemical vapor deposition method, and then removing the silicon substrate by etching with an alkaline solution to obtain the conductive diamond film.
Further, the growth conditions using hot filament chemical vapor deposition were as follows: the temperature of the base station is 500-800 ℃, the temperature of the hot wire is 180-2400 ℃, the air pressure is 1-5kPa, 100-1000sccm of hydrogen gas, 1-20sccm of methane and 1-20sccm of borane are introduced, and the conductive diamond film with the thickness of 1-3 μm is obtained after growth for more than 10 min.
Further, the growth conditions using the microwave plasma chemical vapor deposition method are as follows: the microwave power is 500-.
Further, the surface modification treatment after the conductive diamond film is prepared by the CVD method includes: and closing a carbon source and a boron source, keeping other parameters unchanged in the step of preparing the conductive diamond film by the CVD method, and reacting for 1-30min under the condition of introducing hydrogen to form C-H bonds on the surface of the conductive diamond nano-particles so as to obtain the nano blue diamond particle catalyst with hydrophobic characteristics.
Further, the surface modification treatment after the conductive diamond particles are prepared by the HTHP method includes: and placing the conductive diamond particles in hot wire chemical vapor deposition equipment, and reacting for 1-30min under the conditions that the temperature of a base station is 500-.
Further, the surface modification treatment after the conductive diamond particles are prepared by the HTHP method includes: and placing the conductive diamond particles in microwave, and reacting for 1-30min under the conditions that the microwave power is 500-.
Further, the step of surface modification treatment comprises: and (2) treating the conductive diamond nano particles for 1h by adopting concentrated sulfuric acid with the concentration of 98% at the temperature of 80 ℃, so that ether bonds or aldehyde groups are formed on the surfaces of the conductive diamond nano particles, and the nano blue diamond particle catalyst with enhanced hydrogen absorption performance is obtained.
Further, the step of surface modification treatment comprises: and soaking the conductive diamond nano-particles in 30-50% hydrogen peroxide, and irradiating for 1h by using 254nm ultraviolet light to form hydroxyl on the surfaces of the conductive diamond nano-particles, thereby obtaining the nano blue diamond particle catalyst with enhanced hydrogen absorption performance.
The invention also provides a nano blue diamond particle catalyst of the fuel cell, which is prepared by using the preparation method of the nano blue diamond particle catalyst of the fuel cell in any technical scheme.
The invention also provides a fuel cell, which comprises an anode and a cathode, wherein the anode and/or the cathode uses the nano blue diamond particle catalyst in any technical scheme.
Compared with the prior art, the technical scheme of the invention has the following advantages:
(1) the nano blue diamond particle catalyst is subjected to surface modification treatment, has the performance of hydrogen adsorption or hydrophobicity, can be respectively applied to an anode catalyst and a cathode catalyst of a fuel cell, and improves the overall efficiency of the fuel cell.
(2) The raw material of the nano blue diamond particle catalyst is diamond, the diamond can be artificially synthesized, and compared with platinum, the nano blue diamond particle catalyst is rare, can be used as a raw material for mass production and is easier to obtain. And the price is lower than that of platinum, and the fuel cell can be commercially applied in a large scale, so that the popularization and the application of the fuel cell are more possible.
(3) The conductive diamond has better mechanical strength, thermal conductivity, electrochemistry and chemical properties than platinum, and is more suitable for being used as a catalyst of a fuel cell.
(4) The nano blue diamond particle catalyst is applied to the fuel cell, the chemical reaction is safer, the problem of toxic CO generated by using platinum as the catalyst is avoided, and the nano blue diamond particle catalyst is safer and more environment-friendly.
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, and 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 drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a SEM image of the nano-diamond particle catalyst.
FIG. 2 is another SEM image of the nano-blue diamond particle catalyst.
Fig. 3 is another SEM image of the nano-blue diamond particle catalyst.
FIG. 4 is a Fourier transform infrared spectrum of the nano-blue diamond particle catalyst after surface treatment in one example.
Fig. 5 is a schematic structural view of a fuel cell using nano-blue diamond particle catalyst.
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
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example 1
The embodiment is a nano blue diamond particle catalyst of a fuel cell and a preparation method thereof, wherein the preparation method comprises the following steps: the conductive diamond particles are prepared by an HTHP method, the conductive diamond particles are crushed into conductive diamond nano-particles by physical means such as crushing, grinding and the like, and the conductive diamond nano-particles are subjected to surface modification treatment with hydrophobic characteristics to obtain the nano blue diamond particle catalyst. Wherein the conductive diamond particles are prepared by an HTHP method, comprising the steps of: preparing the conductive diamond particles by a catalyst or a graphite or boron source through an oil press under the condition of more than 500 ℃ and more than 10 GPa. The surface modification treatment comprises the following steps: placing the conductive diamond particles in hot wire chemical vapor deposition equipment, and reacting for 1-30min under the conditions that the temperature of a base station is 500-.
Example 2
This example was the same as example 1 except that the surface modification treatment step was different from example 1. The surface modification treatment of the present embodiment includes: placing the conductive diamond particles in microwave, reacting for 1-30min under the conditions that the microwave power is 500-.
Example 3
This example was the same as example 1 except that the surface modification treatment step was different from example 1. The surface modification treatment of the present embodiment includes: and (2) treating the conductive diamond nano particles for 1h at 80 ℃ by adopting concentrated sulfuric acid with the concentration of 98% to form ether bonds or aldehyde groups on the surfaces of the conductive diamond nano particles, thereby obtaining the nano blue diamond particle catalyst with enhanced hydrogen absorption performance.
Example 4
This example was the same as example 1 except that the surface modification treatment step was different from example 1. The surface modification treatment of the present embodiment includes: soaking the conductive diamond nano-particles in 30-50% hydrogen peroxide, and irradiating for 1h by using 254nm ultraviolet light to form hydroxyl on the surfaces of the conductive diamond nano-particles, thereby obtaining the nano blue diamond particle catalyst with enhanced hydrogen absorption performance.
Example 5
The embodiment provides a nano blue diamond particle catalyst of a fuel cell and a preparation method thereof, wherein the preparation method comprises the following steps: the method comprises the steps of preparing a conductive diamond film by a CVD method, crushing the conductive diamond film into conductive diamond nano-particles by using physical means such as smashing, grinding and the like, and carrying out surface modification treatment on the conductive diamond nano-particles to enable the conductive diamond nano-particles to have hydrophobic characteristics to obtain the nano blue diamond particle catalyst. Wherein the step of preparing the conductive diamond particles by the CVD method comprises: placing a silicon substrate in hot wire chemical vapor deposition equipment, growing for more than 10min under the conditions that the temperature of a base table is 500-. And then cleaning and airing the conductive diamond film, and crushing the conductive diamond film by using a physical means to obtain the conductive diamond nano-particles. The surface modification treatment comprises the following steps: and closing the carbon source and the boron source, keeping other parameters unchanged in the step of preparing the conductive diamond film by the CVD method, and reacting for 1-30min under the condition of introducing hydrogen to form C-H bonds on the surface of the conductive diamond nano-particles so as to obtain the nano blue diamond particle catalyst with the hydrophobic characteristic.
Example 6
The embodiment provides a nano blue diamond particle catalyst of a fuel cell and a preparation method thereof, wherein the preparation method comprises the following steps: the method comprises the steps of preparing a conductive diamond film by a CVD method, crushing the conductive diamond film into conductive diamond nano-particles by using physical means such as smashing, grinding and the like, and carrying out surface modification treatment on the conductive diamond nano-particles to enable the conductive diamond nano-particles to have hydrophobic characteristics to obtain the nano blue diamond particle catalyst. Wherein the step of preparing the conductive diamond particles by the CVD method comprises: placing a silicon substrate in a microwave reactor, growing for 3-10h under the conditions of microwave power of 500-3000W, base temperature of 500-700 ℃, air pressure of 4-6kPa, introduction of 100-sccm hydrogen gas, 1-20sccm methane and 1-10sccm borane to obtain a conductive diamond film with the thickness of 1-3 mu m, and then corroding and removing the silicon substrate by using an alkaline solution such as a sodium hydroxide solution to obtain the conductive diamond film. And then cleaning and airing the conductive diamond film, and crushing the conductive diamond film by using a physical means to obtain the conductive diamond nano-particles. The surface modification treatment comprises the following steps: and closing the carbon source and the boron source, keeping other parameters unchanged in the step of preparing the conductive diamond film by the CVD method, and reacting for 1-30min under the condition of introducing hydrogen to form C-H bonds on the surface of the conductive diamond nano-particles so as to obtain the nano blue diamond particle catalyst with the hydrophobic characteristic.
Example 7
This example was the same as example 5 except that the surface modification treatment step was different from example 5. The surface modification treatment of the present embodiment includes: and (2) treating the conductive diamond nano particles for 1h at 80 ℃ by adopting concentrated sulfuric acid with the concentration of 98% to form ether bonds or aldehyde groups on the surfaces of the conductive diamond nano particles, thereby obtaining the nano blue diamond particle catalyst with enhanced hydrogen absorption performance.
Example 8
This example was the same as example 5 except that the surface modification treatment step was different from example 5. The surface modification treatment of the present embodiment includes: soaking the conductive diamond nano-particles in 30-50% hydrogen peroxide, and irradiating for 1h by using 254nm ultraviolet light to form hydroxyl on the surfaces of the conductive diamond nano-particles, thereby obtaining the nano blue diamond particle catalyst with enhanced hydrogen absorption performance.
Fig. 4 is a diffuse reflection fourier transform infrared spectrum of the nano-blue diamond particle catalyst after the surface modification treatment, wherein (1) the nano-blue diamond particle catalyst has hydrophobic characteristics (C-H bonds), and (2) the nano-blue diamond particle catalyst with enhanced hydrogen absorption performance.
Through the method, the surface of the nano blue diamond particle catalyst is modified to have the performance of adsorbing hydrogen or dewatering, and the nano blue diamond particle catalyst can be respectively applied to an anode catalyst and a cathode catalyst of a fuel cell.
The proton exchange membrane fuel cell comprises an anode, a proton exchange membrane and a cathode, wherein the anode is a hydrogen electrode, the cathode is an oxygen electrode, introduced hydrogen reaches the anode and is decomposed into hydrogen ions with positive charges, electrons with negative charges are released, the hydrogen ions pass through the proton exchange membrane to reach the cathode, the electrons reach the cathode through an external circuit, the electrons form current in the external circuit, and electric energy can be output to a load through proper connection. At the other end, the introduced oxygen (or air) reaches the cathode, and the oxygen reacts with the hydrogen ions and electrons to generate water.
Therefore, through the surface modification treatment, the nano blue diamond particle catalyst with the hydrogen absorption performance applied to the anode catalyst can accelerate the hydrogen to be decomposed into hydrogen ions and accelerate the hydrogen ions to be transferred to the cathode, while the nano blue diamond particle catalyst with the hydrophobicity applied to the cathode catalyst can accelerate the hydrogen to be decomposed into hydrogen ions and accelerate the hydrogen ions to be transferred to the cathode.
The invention provides scanning electron microscope SEM images of nano blue diamond particle catalysts, as shown in figures 1 to 3 for reference.
The beneficial effects created by the invention are as follows:
(1) the nano blue diamond particle catalyst is subjected to surface modification treatment, has the performance of hydrogen adsorption or hydrophobicity, can be respectively applied to an anode catalyst and a cathode catalyst of a fuel cell, and improves the overall efficiency of the fuel cell.
(2) The raw material of the nano blue diamond particle catalyst is diamond, the diamond can be artificially synthesized, and compared with platinum, the nano blue diamond particle catalyst is rare, can be used as a raw material for mass production and is easier to obtain. And the price is lower than that of platinum, and the fuel cell can be commercially applied in a large scale, so that the popularization and the application of the fuel cell are more possible.
(3) The conductive diamond has better mechanical strength, thermal conductivity, electrochemistry and chemical properties than platinum, and is more suitable for being used as a catalyst of a fuel cell.
(4) The nano blue diamond particle catalyst is applied to the fuel cell, the chemical reaction is safer, the problem of toxic CO generated by using platinum as the catalyst is avoided, and the nano blue diamond particle catalyst is safer and more environment-friendly.
The invention also provides a fuel cell, which comprises an anode and a cathode, wherein the anode and/or the cathode use the nano blue diamond particle catalyst in any technical scheme.
Example 9
This example provides a fuel cell, and referring to fig. 5, a nano blue diamond particle catalyst with enhanced hydrogen absorption performance by surface modification treatment is used as an anode catalyst, a nano blue diamond particle catalyst with hydrophobic property is used as a cathode catalyst, and a proton exchange membrane is provided between the anode catalyst and the cathode catalyst.When H is present2And O2After respectively reaching the anode and the cathode of the cell through the gas guide channels, hydrogen is dissociated into H under the action of an anode catalyst+And e-And H + is transferred in the form of hydrated protons in the proton exchange membrane and finally reaches the cathode, so that proton conduction is realized. H+The transfer of (b) causes a negatively charged electron accumulation at the anode, which becomes a negatively charged terminal (negative). At the same time, O of the cathode2H coming from anode under the action of catalyst+The combination causes the cathode to become a positively charged terminal (positive electrode) with the result that a voltage is developed between the negative terminal of the anode and the positive terminal of the cathode. The electrodes are connected by an external load circuit, and electrons flow from the anode to the cathode through a circuit to form a fuel cell, thereby generating electric energy.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. A preparation method of a nano blue diamond particle catalyst of a fuel cell is characterized by comprising the following steps: the method comprises the steps of preparing conductive diamond particles through an HTHP method or preparing a conductive diamond film through a CVD method, crushing the conductive diamond particles or the conductive diamond film into conductive diamond nano particles through a physical means, and carrying out surface modification treatment on the conductive diamond nano particles to enable the conductive diamond nano particles to have a hydrophobic characteristic or enhance the hydrogen absorption performance of the conductive diamond nano particles to obtain the nano blue diamond particle catalyst.
2. The method of preparing a nano blue diamond particle catalyst for a fuel cell according to claim 1, wherein: the steps of preparing the conductive diamond particles by the HTHP method are: preparing the conductive diamond particles by a catalyst or a graphite or boron source through an oil press under the condition of more than 500 ℃ and more than 10 GPa.
3. The method of preparing a nano blue diamond particle catalyst for a fuel cell according to claim 1, wherein: the step of preparing the conductive diamond film by the CVD method comprises the steps of growing the conductive diamond film on a silicon substrate by a hot filament chemical vapor deposition method or a microwave plasma chemical vapor deposition method, and then corroding and removing the silicon substrate by using an alkaline solution to obtain the conductive diamond film.
4. The method of preparing a nano blue diamond particle catalyst for a fuel cell according to claim 3, wherein: the growth conditions using hot filament chemical vapor deposition were as follows: the temperature of the base station is 500-800 ℃, the temperature of the hot wire is 180-2400 ℃, the air pressure is 1-5kPa, 100-1000sccm of hydrogen gas, 1-20sccm of methane and 1-20sccm of borane are introduced, and the conductive diamond film with the thickness of 1-3 μm is obtained after growth for more than 10 min.
5. The method of preparing a nano blue diamond particle catalyst for a fuel cell according to claim 3, wherein: the growth conditions of the microwave plasma chemical vapor deposition method are as follows: the microwave power is 500-.
6. The method of preparing a nano blue diamond particle catalyst for a fuel cell according to claim 4 or 5, wherein: the step of surface modification treatment comprises: and closing a carbon source and a boron source, keeping other parameters unchanged in the step of preparing the conductive diamond film by the CVD method, and reacting for 1-30min under the condition of introducing hydrogen to form C-H bonds on the surface of the conductive diamond nano-particles so as to obtain the nano blue diamond particle catalyst with hydrophobic characteristics.
7. The method of preparing a nano blue diamond particle catalyst for a fuel cell according to claim 2, wherein: the step of surface modification treatment comprises: and placing the conductive diamond particles in hot wire chemical vapor deposition equipment, and reacting for 1-30min under the conditions that the temperature of a base station is 500-.
8. The method of preparing a nano blue diamond particle catalyst for a fuel cell according to claim 2, wherein: the step of surface modification treatment comprises: and placing the conductive diamond particles in microwave, and reacting for 1-30min under the conditions that the microwave power is 500-.
9. The method for preparing a nano blue diamond particle catalyst for a fuel cell according to any one of claims 1 to 5, wherein: the step of surface modification treatment comprises: and (2) treating the conductive diamond nano particles for 1h by adopting concentrated sulfuric acid with the concentration of 98% at the temperature of 80 ℃, so that ether bonds or aldehyde groups are formed on the surfaces of the conductive diamond nano particles, and the nano blue diamond particle catalyst with enhanced hydrogen absorption performance is obtained.
10. The method for preparing a nano blue diamond particle catalyst for a fuel cell according to any one of claims 1 to 5, wherein: the step of surface modification treatment comprises: and soaking the conductive diamond nano-particles in 30-50% hydrogen peroxide, and irradiating for 1h by using 254nm ultraviolet light to form hydroxyl on the surfaces of the conductive diamond nano-particles, thereby obtaining the nano blue diamond particle catalyst with enhanced hydrogen absorption performance.
11. A nano-blue diamond particle catalyst for a fuel cell, characterized in that: the method for preparing a nano blue diamond particle catalyst for a fuel cell according to any one of claims 1 to 10.
12. A fuel cell comprising an anode and a cathode, wherein the anode and/or cathode uses a nano blue diamond particulate catalyst as claimed in claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110027250.4A CN112768709A (en) | 2021-01-09 | 2021-01-09 | Nano blue diamond particle catalyst of fuel cell, preparation method and fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110027250.4A CN112768709A (en) | 2021-01-09 | 2021-01-09 | Nano blue diamond particle catalyst of fuel cell, preparation method and fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112768709A true CN112768709A (en) | 2021-05-07 |
Family
ID=75701172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110027250.4A Pending CN112768709A (en) | 2021-01-09 | 2021-01-09 | Nano blue diamond particle catalyst of fuel cell, preparation method and fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112768709A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114874025A (en) * | 2022-03-28 | 2022-08-09 | 广州德百顺蓝钻科技有限公司 | Diamond water filtering ring and preparation method thereof |
| US11590568B2 (en) | 2019-12-19 | 2023-02-28 | 6K Inc. | Process for producing spheroidized powder from feedstock materials |
| US11633785B2 (en) | 2019-04-30 | 2023-04-25 | 6K Inc. | Mechanically alloyed powder feedstock |
| US11717886B2 (en) | 2019-11-18 | 2023-08-08 | 6K Inc. | Unique feedstocks for spherical powders and methods of manufacturing |
| US11839919B2 (en) | 2015-12-16 | 2023-12-12 | 6K Inc. | Spheroidal dehydrogenated metals and metal alloy particles |
| US11855278B2 (en) | 2020-06-25 | 2023-12-26 | 6K, Inc. | Microcomposite alloy structure |
| US11919071B2 (en) | 2020-10-30 | 2024-03-05 | 6K Inc. | Systems and methods for synthesis of spheroidized metal powders |
| US11963287B2 (en) | 2020-09-24 | 2024-04-16 | 6K Inc. | Systems, devices, and methods for starting plasma |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1957116A (en) * | 2004-05-27 | 2007-05-02 | 凸版印刷株式会社 | Nanocrystal diamond film, process for producing the same and apparatus using nanocrystal diamond film |
| CN102432003A (en) * | 2011-08-30 | 2012-05-02 | 广州市德百顺电气科技有限公司 | Surface modified nanometer diamond particle as well as preparation method and application thereof |
| CN107142462A (en) * | 2017-04-11 | 2017-09-08 | 山东省科学院海洋仪器仪表研究所 | A kind of Buddha's warrior attendant ground mass seawater salinity sensor electrode material |
| CN108110267A (en) * | 2017-12-28 | 2018-06-01 | 成都新柯力化工科技有限公司 | The Nano diamond base non-platinum catalyst and preparation method of a kind of fuel cell |
| CN108611655A (en) * | 2018-03-18 | 2018-10-02 | 广州市德百顺电气科技有限公司 | A kind of electrode of electrode unit and its composition |
-
2021
- 2021-01-09 CN CN202110027250.4A patent/CN112768709A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1957116A (en) * | 2004-05-27 | 2007-05-02 | 凸版印刷株式会社 | Nanocrystal diamond film, process for producing the same and apparatus using nanocrystal diamond film |
| CN102432003A (en) * | 2011-08-30 | 2012-05-02 | 广州市德百顺电气科技有限公司 | Surface modified nanometer diamond particle as well as preparation method and application thereof |
| CN107142462A (en) * | 2017-04-11 | 2017-09-08 | 山东省科学院海洋仪器仪表研究所 | A kind of Buddha's warrior attendant ground mass seawater salinity sensor electrode material |
| CN108110267A (en) * | 2017-12-28 | 2018-06-01 | 成都新柯力化工科技有限公司 | The Nano diamond base non-platinum catalyst and preparation method of a kind of fuel cell |
| CN108611655A (en) * | 2018-03-18 | 2018-10-02 | 广州市德百顺电气科技有限公司 | A kind of electrode of electrode unit and its composition |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11839919B2 (en) | 2015-12-16 | 2023-12-12 | 6K Inc. | Spheroidal dehydrogenated metals and metal alloy particles |
| US11633785B2 (en) | 2019-04-30 | 2023-04-25 | 6K Inc. | Mechanically alloyed powder feedstock |
| US11717886B2 (en) | 2019-11-18 | 2023-08-08 | 6K Inc. | Unique feedstocks for spherical powders and methods of manufacturing |
| US11590568B2 (en) | 2019-12-19 | 2023-02-28 | 6K Inc. | Process for producing spheroidized powder from feedstock materials |
| US11855278B2 (en) | 2020-06-25 | 2023-12-26 | 6K, Inc. | Microcomposite alloy structure |
| US11963287B2 (en) | 2020-09-24 | 2024-04-16 | 6K Inc. | Systems, devices, and methods for starting plasma |
| US11919071B2 (en) | 2020-10-30 | 2024-03-05 | 6K Inc. | Systems and methods for synthesis of spheroidized metal powders |
| CN114874025A (en) * | 2022-03-28 | 2022-08-09 | 广州德百顺蓝钻科技有限公司 | Diamond water filtering ring and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112768711B (en) | Surface modified blue diamond catalyst of fuel cell, preparation method and fuel cell | |
| CN112768709A (en) | Nano blue diamond particle catalyst of fuel cell, preparation method and fuel cell | |
| CN112768710B (en) | Nano blue diamond catalyst of fuel cell, preparation method and fuel cell | |
| KR100759547B1 (en) | Carbon nanotube for fuel cell, method for preparing the same and fuel cell using the carbon nanotube | |
| CN111346642B (en) | High-dispersion metal nanoparticle/biomass carbon composite electrode material and preparation method and application thereof | |
| CN106784877B (en) | Preparation method of microbial fuel cell cathode composite material and microbial fuel cell reactor | |
| CN108611655B (en) | Electrode unit and electrode composed of same | |
| CN112844421B (en) | MoS (MoS) enhanced by utilizing plasma2Method for electrocatalytic and/or photoelectrocatalytic properties | |
| CN113774416A (en) | Gas diffusion cathode and electrochemical reactor for in-situ production of hydrogen peroxide | |
| CN114583191A (en) | Method for preparing anode catalyst of direct methanol fuel cell by electrodeposition | |
| CN112201798A (en) | Metal catalyst, mass preparation method thereof and fuel cell | |
| CN113512738B (en) | Ternary iron-nickel-molybdenum-based composite material water electrolysis catalyst, and preparation method and application thereof | |
| CN110592616A (en) | Method for preparing platinum/titanium dioxide nanotube composite electrode by electroplating method | |
| CN114477163A (en) | Iron/nitrogen co-doped single-atom carbon catalyst and preparation method thereof | |
| CN111962099B (en) | Electrode for electrocatalytic production of hydrogen peroxide, preparation method and application thereof | |
| CN112201797A (en) | Metal catalyst, mass production preparation method thereof and fuel cell | |
| CN114744224B (en) | Preparation and application of nitrogen-doped carbon nanotube-loaded nickel-cobalt composite nanowire | |
| CN113629258B (en) | Platinum-cobalt alloy catalyst with platinum-rich surface and preparation method and application thereof | |
| CN110085875B (en) | Multi-layer catalyst layer for relieving attenuation of alloy-containing catalyst layer and preparation method thereof | |
| CN111155145B (en) | Bifunctional electrolytic water electrode with super-wettability and preparation method thereof | |
| CN112850860A (en) | Preparation method and application of nitrogen-doped ordered mesoporous carbon electrode | |
| CN111276703B (en) | Surface fuel cell electrode with high electrochemical activity ratio and preparation and application thereof | |
| CN111545221A (en) | Homologous metal gradient material and preparation method and application thereof | |
| CN113036159A (en) | Application of PDMS-based flexible silver nanowire doped graphene/nano nickel platinum composite electrode in fuel cell | |
| CN117543038B (en) | Modification preparation process of bipolar plate of proton exchange membrane fuel cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 510000 8th floor, building B4, No. 11, Kaiyuan Avenue, Science City, Guangzhou high tech Industrial Development Zone, Guangzhou City, Guangdong Province Applicant after: Guangzhou debaishun Blue Diamond Technology Co.,Ltd. Address before: 8 / F, building B4, 11 Kaiyuan Avenue, Science City, Guangzhou hi tech Industrial Development Zone, Guangdong 510000 Applicant before: GUANGZHOU DEPOSON ELECTRIC TECHNOLOGY Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210507 |