CN109950565A - A kind of two-dimentional nano sheets of platinum, preparation method and the application of carbon doping - Google Patents
A kind of two-dimentional nano sheets of platinum, preparation method and the application of carbon doping Download PDFInfo
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- CN109950565A CN109950565A CN201910243362.6A CN201910243362A CN109950565A CN 109950565 A CN109950565 A CN 109950565A CN 201910243362 A CN201910243362 A CN 201910243362A CN 109950565 A CN109950565 A CN 109950565A
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Abstract
The present invention provides a kind of preparation methods of the two-dimentional nano sheets of platinum of carbon doping, comprising: carbon containing metal platinum salt and inorganic salts mixing obtain mixed solution；The mixed solution is dried, solid powder is obtained；The solid powder is annealed, is washed, the two-dimentional nano sheets of platinum of carbon doping is obtained.The present invention is using carbon containing metal platinum salt as presoma, using inorganic salts as template, can be obtained by the nano sheets of platinum of Two-dimensional Carbon doping by high temperature pyrolysis.Fuel battery cathod catalyst of the invention presents excellent catalytic activity and stability in acid oxygen reduction reaction.It can be 0.10mgPt/cm in carrying capacity when this catalyst is used for fuel battery negative pole2Under conditions of highest can realize 1.2W/cm2Output power, and when current density be greater than 350mA/cm2When, the voltage of Pt NSs catalyst 50mV higher than platinum carbon or so always shows excellent catalytic performance.
Description
Technical field
The present invention relates to battery technology fields, two-dimentional nano sheets of platinum, preparation method more particularly, to a kind of doping of carbon
And application.
Background technique
Fuel cell can utilize the electrode reaction of hydrogen and oxygen will be chemical at normal temperature as a kind of new energy technology
It can be converted into electric energy.It has abundant fuel source, energy density height, energy conversion efficiency height, advantages of environment protection, is expected to
As following clean energy resource.Wherein, the Cathodic oxygen reduction dynamics of fuel electrode is slow, it usually needs noble metal conduct
Catalyst, this seriously constrains the commercialization process and practical application of fuel cell.Since platinum carbon is anti-in hydroxide and hydrogen reduction
It is all had excellent catalytic properties in answering, therefore, platinum carbon is still that widest catalyst is commercially used so far.Platinum carbon
It is to load Pt nanoparticle on the carbon carrier, catalytic performance and platinum grain size, the degree that is uniformly dispersed and impurity content
Etc. closely related, usual platinum grain size is at 2~9 nanometers.But Pt nanoparticle is easy to happen in long-time test process
Dissolution and the problems such as reuniting, cause its stability poor, and therefore, the catalyst for finding a kind of high-performance and high stability is that have very much
It is necessary.
Ultra-thin two-dimension nano material was found out due to its unique electronics, physical chemistry and optical property from 2004
Beginning is widely noticed always.A kind of efficient catalytic of the synthetic method realization to oxygen reduction reaction of simplicity is developed, and can persistently be protected
Hold the catalyst of structural stability and catalytic activity, can substitute current business platinum carbon be have very much must.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is that providing a kind of preparation of the two-dimentional nano sheets of platinum of carbon doping
The two-dimentional nano sheets of platinum catalytic activity of method, the carbon doping that preparation method of the present invention is prepared is high, and stability is good.
The present invention provides a kind of preparation methods of the two-dimentional nano sheets of platinum of carbon doping, comprising:
A) carbon containing metal platinum salt and inorganic salts mixing, obtain mixed solution；
B) mixed solution is dried, obtains solid powder；
C) solid powder is annealed, is washed, the two-dimentional nano sheets of platinum of carbon doping is obtained.
Preferably, the mass ratio of the carbon containing metal platinum salt and inorganic salts is 1:(80~120).
Preferably, the carbon containing metal platinum salt is acetylacetone,2,4-pentanedione platinum；The inorganic salts are potassium chloride or potassium bromide.
Preferably, the drying temperature is 60 DEG C~100 DEG C；The drying time is 40~60min.
Preferably, the annealing carries out under conditions of inert gas；The temperature of the annealing is 200~350 DEG C；It is described
Soaking time is 2~3h.
Preferably, the washing specifically: washed 3~5 times using the mixed solution of second alcohol and water.
Preferably, step A) described be mixed into be dispersed in mixed solution, and the mixed solution is the mixing of second alcohol and water
Solution, wherein the ratio of second alcohol and water is 1:1；Described to be mixed into ultrasonic mixing, the time of the ultrasonic mixing is 0.5~1h.
The present invention provides a kind of two-dimentional nano sheets of platinum of carbon doping, the preparation as described in above-mentioned technical proposal any one
Method is prepared.
Preferably, the size of the two-dimentional nano sheets of platinum of the carbon doping is 1~3 μm；With a thickness of 8~12nm.
The present invention provides the two-dimentional nano sheets of platinum for the carbon doping that the preparation method described in above-mentioned technical proposal is prepared
For preparing the application of fuel battery cathod catalyst.
Compared with prior art, the present invention provides a kind of preparation methods of the two-dimentional nano sheets of platinum of carbon doping, comprising: A)
Carbon containing metal platinum salt and inorganic salts mixing, obtain mixed solution；B) mixed solution is dried, obtains solid powder；C) will
The solid powder annealing, washing obtain the two-dimentional nano sheets of platinum of carbon doping.The present invention using carbon containing metal platinum salt as presoma,
Using inorganic salts as template, the nano sheets of platinum of Two-dimensional Carbon doping can be obtained by by high temperature pyrolysis.Preparation method is simple for this.
The fuel battery cathod catalyst of the alternative platinum carbon of two dimension provided by the invention presents excellent in acid oxygen reduction reaction
Catalytic activity and stability.It can be 0.10mgPt/cm in carrying capacity when this catalyst is used for fuel battery negative pole2Under conditions of
Highest can realize 1.2W/cm2Output power, higher than the 1.01W/cm of 20% business platinum carbon2, and when current density is greater than
350mA/cm2When, the voltage of Pt NSs catalyst 50mV higher than platinum carbon or so always shows excellent catalytic performance.
Detailed description of the invention
Fig. 1 is the transmission electron microscope image that Two-dimensional Carbon prepared by the embodiment of the present invention 1 adulterates nano sheets of platinum catalyst
And high angle annular dark field scanning transmission electron microscope image, apparent lamellar structure as can be seen from Figure 1；
Fig. 2 be the embodiment of the present invention 1 prepared by Two-dimensional Carbon adulterate nano sheets of platinum catalyst atomic force microscope images and
Its thickness characterization, show that the thickness of the catalyst is about 9.5 nanometers；
Fig. 3 is the Raman spectrum collection that Two-dimensional Carbon prepared by the embodiment of the present invention 2 adulterates nano sheets of platinum catalyst；
Fig. 4 is that Two-dimensional Carbon prepared by the present invention adulterates nano sheets of platinum catalyst (red line) and business platinum carbon (Pt mass point
Number be 20%, black line) hydrogen reduction performance in acid condition compare；
Fig. 5 is that Two-dimensional Carbon prepared by the embodiment of the present invention 3 adulterates nano sheets of platinum catalyst before by 10,000 circle tests
Hydrogen reduction performance afterwards compares；
Fig. 6 is that Two-dimensional Carbon prepared by the embodiment of the present invention 4 adulterates nano sheets of platinum catalyst (red line) and business platinum carbon (Pt
Mass fraction is 20%, black line) in H2/O2Under the conditions of fuel battery performance compare；
Fig. 7 is that Two-dimensional Carbon prepared by the embodiment of the present invention 5 adulterates nano sheets of platinum catalyst in the H by 100 hours2/O2Item
Fuel battery stability test under part；
Fig. 8 is that Two-dimensional Carbon prepared by the embodiment of the present invention 6 adulterates nano sheets of platinum catalyst (red line) and business platinum carbon (Pt
Mass fraction is 20%, black line) in H2Fuel battery performance under the conditions of/Air compares.
Specific embodiment
The present invention provides two-dimentional nano sheets of platinum, preparation method and the application of a kind of doping of carbon, those skilled in the art
Present disclosure can be used for reference, realization of process parameters is suitably modified.In particular, it should be pointed out that all similar substitutions and modifications pair
It is it will be apparent that they shall fall within the protection scope of the present invention for those skilled in the art.Method and application of the invention
Be described by preferred embodiment, related personnel obviously can not depart from the content of present invention, in spirit and scope it is right
Methods herein and application are modified or appropriate changes and combinations, carry out implementation and application the technology of the present invention.
The present invention provides a kind of preparation methods of the two-dimentional nano sheets of platinum of carbon doping, comprising:
A) carbon containing metal platinum salt and inorganic salts mixing, obtain mixed solution；
B) mixed solution is dried, obtains solid powder；
C) solid powder is annealed, is washed, the two-dimentional nano sheets of platinum of carbon doping is obtained.
A kind of preparation method of the two-dimentional nano sheets of platinum of carbon doping provided by the invention is first by carbon containing metal platinum salt and nothing
The mixing of machine salt, obtains mixed solution.It is preferred that be specially that carbon containing metal platinum salt and inorganic salts will be dispersed in mixed solution, ultrasound
Mixing, obtains mixed solution.
According to the present invention, the carbon containing metal platinum salt is preferably acetylacetone,2,4-pentanedione platinum；The inorganic salts be preferably potassium chloride or
Potassium bromide.The mass ratio of the carbon containing metal platinum salt and inorganic salts is preferably 1:(80~120)；More preferably 1:(90~110).
The present invention for the carbon containing metal platinum salt and inorganic salts source without limit, it is commercially available.
Mixed solution of the present invention is preferably the mixed solution of second alcohol and water, and wherein the ratio of second alcohol and water is preferably 1:
1；The time of the ultrasonic mixing is preferably 0.5~1h；The ultrasonic power density is preferably >=0.3W/cm2。
The mixed solution is dried, solid powder is obtained.Mixed solution is specially placed in dry out solvent in baking oven, is obtained
To the hybrid solid powder of carbon containing metal platinum salt and inorganic salts；
Drying of the present invention preferably carries out in an oven；The drying temperature is preferably 60 DEG C~100 DEG C；More preferably
80 DEG C~100 DEG C；The drying time is preferably 40~60min.
The solid powder is annealed, is washed, the two-dimentional nano sheets of platinum of carbon doping is obtained.Specially solid powder is placed in
In porcelain boat, porcelain boat is placed in tube furnace, is annealed, washing.
In the present invention, the annealing preferably carries out under conditions of inert gas；The temperature of the annealing is preferably 200
~350 DEG C；The soaking time is preferably 2~3h.
It is cooling, washing after annealing；The cooling is preferably cooled to room temperature；The washing specifically: use second
The mixed solution of alcohol and water washs 3~5 times.Wherein, the mixed volume ratio of the second alcohol and water is preferably 1:1.
The present invention provides a kind of preparation methods of the two-dimentional nano sheets of platinum of carbon doping, comprising: A) carbon containing metal platinum salt and
Inorganic salts mixing, obtains mixed solution；B) mixed solution is dried, obtains solid powder；C) solid powder is moved back
Fire, washing obtain the two-dimentional nano sheets of platinum of carbon doping.The present invention is using carbon containing metal platinum salt as presoma, using inorganic salts as template,
It can be obtained by the nano sheets of platinum of Two-dimensional Carbon doping by high temperature pyrolysis.Preparation method is simple for this.Provided by the invention two
The fuel battery cathod catalyst for tieing up alternative platinum carbon presents excellent catalytic activity and stabilization in acid oxygen reduction reaction
Property.It can be 0.10mgPt/cm in carrying capacity when this catalyst is used for fuel battery negative pole2Under conditions of highest can realize 1.2W/
cm2Output power, higher than the 1.01W/cm of 20% business platinum carbon2, and when current density is greater than 350mA/cm2When, Pt NSs
The voltage of catalyst 50mV higher than platinum carbon or so always, shows excellent catalytic performance.
The present invention provides a kind of two-dimentional nano sheets of platinum of carbon doping, the preparation as described in above-mentioned technical proposal any one
Method is prepared.
According to the present invention, the two-dimentional nano sheets of platinum of the carbon doping is preferably sized to 1~3 μm；Thickness is preferably 8~
12nm。
The catalyst produced by the present invention shows excellent catalytic activity in the oxygen reduction reaction of fuel battery negative pole
And stability, and preparation method is simple, product repetitive rate is high, and catalytic activity is high, is better than platinum carbon, and stability is good, is expected to
A kind of catalyst as alternative platinum carbon.
The present invention provides the two-dimentional nano sheets of platinum for the carbon doping that the preparation method described in above-mentioned technical proposal is prepared
For preparing the application of fuel battery cathod catalyst.
The fuel battery cathod catalyst of the alternative platinum carbon of two dimension provided by the invention be using acetylacetone,2,4-pentanedione platinum as presoma,
Using potassium chloride or potassium bromide as template, it is only necessary to can be obtained by the nano sheets of platinum of Two-dimensional Carbon doping by high temperature pyrolysis.The system
Preparation Method is simple and easy, can be used for manufacturing other two-dimensional metallic materials.The platinum nanometer of Two-dimensional Carbon doping prepared by the present invention
Piece size is 1~3 micron, with a thickness of 8~12 nanometers, has a large amount of surface defect site, as shown in figures 1 and 2；
The fuel battery cathod catalyst of the alternative platinum carbon of two dimension provided by the invention shows in acid oxygen reduction reaction
Excellent catalytic activity and stability.The hydrogen reduction take-off potential and half wave potential of the test gained catalyst are than business
Noble metal catalyst platinum carbon is good.In 0.1mol/L HClO4In electrolyte, the half wave potential of the catalyst is 0.91V, significantly high
In platinum carbon (0.85V), cyclical stability is also significantly better than platinum carbon, can preferably substitute platinum carbon, promote fuel cell into one
Step development.
The preparation method of Two-dimensional Carbon doping nano sheets of platinum proposed by the present invention provides one kind newly to prepare two-dimensional metallic piece
Strategy.It can be 0.10mgPt/cm in carrying capacity when this catalyst is used for fuel battery negative pole2Under conditions of highest can realize
1.2W/cm2Output power, higher than the 1.01W/cm of 20% business platinum carbon2, and when current density is greater than 350mA/cm2When,
The voltage of Pt NSs catalyst 50mV higher than platinum carbon or so always, shows excellent catalytic performance.
In order to further illustrate the present invention, a kind of two-dimentional platinum of carbon doping provided by the invention is received with reference to embodiments
Rice piece, preparation method and application are described in detail.
Embodiment 1
The preparation of the nano sheets of platinum of Two-dimensional Carbon doping:
(1) potassium chloride of 10mg acetylacetone,2,4-pentanedione platinum and 100mg is dissolved in the mixing of the second alcohol and water (v/v=1/1) of 10mL
Solution, ultrasonic 0.5-1h obtain uniformly mixed solution；
(2) obtained mixed solution is placed in 80 DEG C of baking oven, dry out solvent, obtains carbon containing metal platinum salt and inorganic salts
Hybrid solid powder；
(3) solid powder obtained above is placed in porcelain boat, porcelain boat is put into tube furnace, lead to inert gas half an hour,
It is warming up to 200-350 DEG C in an inert atmosphere, keeps the temperature 2-3 hours.
(4) after cooled to room temperature, powder obtained above is collected, washs 3-5 with the mixed solution of second alcohol and water
It is secondary.
Fig. 1 is the transmission electron microscope image that Two-dimensional Carbon prepared by the embodiment of the present invention 1 adulterates nano sheets of platinum catalyst
And high angle annular dark field scanning transmission electron microscope image, apparent lamellar structure as can be seen from Figure 1；Fig. 2 is this
Two-dimensional Carbon prepared by inventive embodiments 1 adulterates the atomic force microscope images and its thickness characterization of nano sheets of platinum catalyst, obtains
The thickness of the catalyst is about 9.5 nanometers；Fig. 3 is that Two-dimensional Carbon prepared by the embodiment of the present invention 1 adulterates nano sheets of platinum catalyst
Raman spectrum collection.
Embodiment 2
Oxygen reduction activity evaluation is carried out to 1 gained catalyst of embodiment:
Weigh the active carbon of Two-dimensional Carbon doping the nano sheets of platinum catalyst and 3.2mg of the preparation of 0.8mg examples detailed above 1, dispersion
In the mixed solution that ethyl alcohol and water volume ratio are 1:1, the Nafion solution that 20ul mass concentration is 5% is added, ultrasound until
Form finely dispersed catalyst solution.Taken fraction drop in diameter be 0.5mm glass-carbon electrode on, after room temperature is dried,
In 0.1M HClO4Electro-chemical test is carried out in solution.Reaction condition are as follows: in 0.1M HClO4In solution, room temperature leads to oxygen saturation
Afterwards, setting electrode revolving speed is 1600rpm, and sweeping speed is 10mV/s, linear sweep voltammetry curve is obtained, referring to attached drawing 4.
Fig. 4 is that Two-dimensional Carbon prepared by the embodiment of the present invention 2 adulterates nano sheets of platinum catalyst (solid line) and business platinum carbon (Pt matter
Measure score be 20%, dotted line) hydrogen reduction performance in acid condition compare, test condition: electrolyte 0.1mol/L
HClO4 solution, revolving speed 1600rpm, scanning speed 10mV/s.The take-off potential of prepared catalyst as can be seen from Figure 4
Business platinum carbon is all substantially better than with half wave potential；
Comparative example 2
4mg business platinum carbon (Pt mass fraction is 20%) is weighed, is scattered in ethyl alcohol and water volume ratio for the mixed solution of 1:1
In, the Nafion solution that 20ul mass concentration is 5% is added, ultrasonic disperse forms solution.It takes molten described in same amount of small part
Drop is applied in rotating disk electrode (r.d.e), after room temperature is dried, carries out electro-chemical test in 0.1M HClO4 solution.Test condition
Are as follows: in the HClO of oxygen-saturated 0.1mol/L4Linear volt-ampere test is carried out using rotating disk electrode (r.d.e) in solution, revolving speed is
1600rpm, scanning speed 10mV/s.
Embodiment 3
Prepared by Two-dimensional Carbon doping nano sheets of platinum catalyst to the present invention and carries out stability test, Fig. 5 is the embodiment of the present invention 3
Prepared Two-dimensional Carbon doping nano sheets of platinum catalyst compares in the hydrogen reduction performance by 10,000 circle test front and back, from Fig. 5
It can be seen that the catalyst has excellent catalytic stability.
Embodiment 4
Fuel cell activity rating is carried out to 1 gained catalyst of embodiment:
Take 20%Pt NSs, isopropanol, deionized water and 5%Nafion solution according to the proportion of weight ratio 1:12:12:11
It is fabricated to slurry, after being ultrasonically treated 1h, 10h is stirred under the conditions of 1200r/min magnetic agitation, forms fuel electricity after ultrasound 2h again
Pond catalyst pulp.Then the catalyst solution is sprayed on the carbon paper of 3.5cm*3.5cm, to obtain hydrogen-oxygen fuel cell
The cathode of test.It is 0.15mg/cm that platinum carbon (the business platinum carbon that content is 20%) carrying capacity, which is similarly made,2Fuel cell sun
Pole obtains the membrane electrode of fuel cell test then with proton exchange membrane hot pressing.Anode leads to hydrogen, and cathode leads to oxygen, total
Air pressure is that the air pressure ratio of 0.2MPa, wherein hydrogen and oxygen are 1.5 to 2.5, and are tested under the conditions of 80 DEG C.With 20%
For PtNSs as in the membrane electrode of fuel battery negative pole, the carrying capacity of pure Pt is 0.10mg/cm, is 15psi, hydrogen and oxygen in back pressure
The gas flow of gas is respectively under the test condition of 200 and 300mml/min, and the maximum power density of 20%Pt NSs is 1.2W
cm-2, hence it is evident that it is better than business platinum carbon.Specific performance test result is referring to attached drawing 6.Fig. 6 is Two-dimensional Carbon prepared by the embodiment of the present invention 4
Nano sheets of platinum catalyst (solid line) is adulterated with business platinum carbon (Pt mass fraction is 20%, dotted line) in H2/O2Under the conditions of fuel
Battery performance compares.
Comparative example 4
The cathode platinum carbon (the business platinum carbon that content is 20%) that hydrogen-oxygen fuel cell is made in method same as Example 4 carries
Amount is 0.10mg/cm2, anode platinum carbon (the business platinum carbon that content is 20%) carrying capacity is 0.10mg/cm2.Anode leads to hydrogen, cathode
Blowing air, back pressure 15psi, wherein the air pressure ratio of hydrogen and oxygen is 1.5 to 2.5, and is tested under the conditions of 80 DEG C.
In using 20%Pt/C as the membrane electrode of fuel battery negative pole, the carrying capacity of pure Pt is 0.10mg/cm, is 1bar, hydrogen in back pressure
Gas flow with oxygen is respectively the performance test results of 20%Pt/C under the test condition of 200 and 300mml/min.
Embodiment 5
Prepared by Two-dimensional Carbon doping nano sheets of platinum catalyst to the present invention and is assembled into hydrogen-oxygen fuel cell progress stability test.
Fig. 7 is that Two-dimensional Carbon prepared by the embodiment of the present invention 5 adulterates nano sheets of platinum catalyst as fuel battery negative pole, back pressure 30psi, hydrogen
Oxygen is as reaction gas, under the conditions of on-load voltage 0.6V, the current loss situation of battery last work 100 hours.It can from Fig. 7
There is good catalytic stability to find out the catalyst in a fuel cell.
Embodiment 6
The membrane electrode of hydrogen-oxygen fuel cell test is made in method same as Example 4, and anode leads to hydrogen, the logical sky of cathode
Gas, back pressure 15psi, wherein the air pressure ratio of hydrogen and air is 1.5 to 2.5, and is tested under the conditions of 80 DEG C.With Pt
NSs is as in the membrane electrode of fuel battery negative pole, and the carrying capacity of pure Pt is 0.10mg/cm, back pressure 15psi, hydrogen and oxygen
Gas flow is respectively under the test condition of 200 and 300mml/min, and the maximum power density of Pt NSs is 430mW cm-2, bright
It is aobvious to be better than business platinum carbon.Specific performance test result is referring to attached drawing 8.Fig. 8 is that Two-dimensional Carbon prepared by the embodiment of the present invention 6 adulterates platinum
Nanometer sheet catalyst (solid line) is with business platinum carbon (Pt mass fraction is 20%, dotted line) in H2Fuel cell under the conditions of/Air
Performance compares.
Comparative example 6
The membrane electrode of hydrogen-oxygen fuel cell test is made in method same as Example 4, and anode leads to hydrogen, the logical sky of cathode
Gas, back pressure 15psi, wherein the air pressure ratio of hydrogen and air is 1.5 to 2.5, and is tested under the conditions of 80 DEG C.With
For 20%Pt/C as in the membrane electrode of fuel battery negative pole, the carrying capacity of pure Pt is 0.12mg/cm, is 15psi in back pressure, hydrogen and
The gas flow of oxygen is respectively the performance test situation of 20%Pt/C under the test condition of 200 and 300mml/min.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of preparation method of the two-dimentional nano sheets of platinum of carbon doping characterized by comprising
A) carbon containing metal platinum salt and inorganic salts mixing, obtain mixed solution；
B) mixed solution is dried, obtains solid powder；
C) solid powder is annealed, is washed, the two-dimentional nano sheets of platinum of carbon doping is obtained.
2. preparation method according to claim 1, which is characterized in that the mass ratio of carbon containing the metal platinum salt and inorganic salts
For 1:(80~120).
3. preparation method according to claim 1, which is characterized in that the carbon containing metal platinum salt is acetylacetone,2,4-pentanedione platinum；Institute
Stating inorganic salts is potassium chloride or potassium bromide.
4. preparation method according to claim 1, which is characterized in that the drying temperature is 60 DEG C~100 DEG C；The baking
The dry time is 40~60min.
5. preparation method according to claim 1, which is characterized in that the annealing carries out under conditions of inert gas；
The temperature of the annealing is 200~350 DEG C；The soaking time is 2~3h.
6. preparation method according to claim 1, which is characterized in that the washing specifically: using the mixed of second alcohol and water
Solution is closed to wash 3~5 times.
7. preparation method according to claim 1, which is characterized in that step A) described be mixed into be dispersed in mixed solution
In, the mixed solution is the mixed solution of second alcohol and water, and wherein the ratio of second alcohol and water is 1:1；The ultrasound that is mixed into is mixed
It closes, the time of the ultrasonic mixing is 0.5~1h.
8. a kind of two-dimentional nano sheets of platinum of carbon doping, which is characterized in that the preparation side as described in claim 1~8 any one
Method is prepared.
9. the two-dimentional nano sheets of platinum of carbon doping according to claim 8, which is characterized in that the two-dimentional platinum of the carbon doping is received
The size of rice piece is 1~3 μm；With a thickness of 8~12nm.
10. the two-dimentional nano sheets of platinum for the carbon doping that preparation method described in claim 1~8 any one is prepared is used to make
The application of standby fuel battery cathod catalyst.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518265A (en) * | 2019-07-16 | 2019-11-29 | 南京工业大学 | A kind of platinum alloy catalyst, fused salt hot preparation method and Proton Exchange Membrane Fuel Cells |
| WO2021114551A1 (en) * | 2019-12-10 | 2021-06-17 | 北京工业大学 | New enzyme-free glucose sensor applied to in-situ test in fermentation process |
| CN113224323A (en) * | 2021-05-17 | 2021-08-06 | 安徽师范大学 | Three-dimensional flower-shaped ultrathin two-dimensional Ce and B doped Pt nanosheet and preparation method and application thereof |
| CN114464823A (en) * | 2022-01-21 | 2022-05-10 | 先进能源产业研究院(广州)有限公司 | Oxygen reduction reaction catalyst and preparation method thereof |
| CN114914463A (en) * | 2021-02-08 | 2022-08-16 | 中国科学院大连化学物理研究所 | High-load high-dispersion platinum-carbon catalyst and preparation method of amino ligand thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505127A (en) * | 2011-12-29 | 2012-06-20 | 文广 | Preparation method for noble metal modified titanium anode materials |
| CN106994352A (en) * | 2017-04-12 | 2017-08-01 | 苏州大学 | A kind of cluster type PtNi alloy nanos catalyst, preparation method and applications |
| CN108598509A (en) * | 2018-03-20 | 2018-09-28 | 河北工业大学 | A kind of preparation method of Pt-Pd nuclear shell structure nanos catalyst |
| CN108649242A (en) * | 2018-03-21 | 2018-10-12 | 南京师范大学 | The preparation method and its resulting materials of a kind of porous Pt nanometer sheets of two dimension and application |
| CN108899558A (en) * | 2018-06-07 | 2018-11-27 | 同济大学 | A kind of PtCo/C elctro-catalyst and preparation method thereof |
-
2019
- 2019-03-28 CN CN201910243362.6A patent/CN109950565A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505127A (en) * | 2011-12-29 | 2012-06-20 | 文广 | Preparation method for noble metal modified titanium anode materials |
| CN106994352A (en) * | 2017-04-12 | 2017-08-01 | 苏州大学 | A kind of cluster type PtNi alloy nanos catalyst, preparation method and applications |
| CN108598509A (en) * | 2018-03-20 | 2018-09-28 | 河北工业大学 | A kind of preparation method of Pt-Pd nuclear shell structure nanos catalyst |
| CN108649242A (en) * | 2018-03-21 | 2018-10-12 | 南京师范大学 | The preparation method and its resulting materials of a kind of porous Pt nanometer sheets of two dimension and application |
| CN108899558A (en) * | 2018-06-07 | 2018-11-27 | 同济大学 | A kind of PtCo/C elctro-catalyst and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| ANTON A. KULBAKOV, MATHIEU ALLIX, AYDAR RAKHMATULLIN等: "In Situ Investigation of Non-Isothermal Decomposition of Pt Acetylacetonate as One-Step Size-Controlled Synthesis of Pt Nanoparticles", 《PHYS. STATUS SOLIDI A》 * |
| ZHAOLIN LIU, BING GUO, SIOK WEI TAY等: "Physical and electrochemical characterizations of PtPb/C catalyst prepared by pyrolysis of platinum(II) and lead(II) acetylacetonate", 《JOURNAL OF POWER SOURCES》 * |
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| WO2021114551A1 (en) * | 2019-12-10 | 2021-06-17 | 北京工业大学 | New enzyme-free glucose sensor applied to in-situ test in fermentation process |
| CN114914463A (en) * | 2021-02-08 | 2022-08-16 | 中国科学院大连化学物理研究所 | High-load high-dispersion platinum-carbon catalyst and preparation method of amino ligand thereof |
| CN114914463B (en) * | 2021-02-08 | 2023-11-07 | 中国科学院大连化学物理研究所 | High-load high-dispersion platinum-carbon catalyst and preparation method of amino ligand thereof |
| CN113224323A (en) * | 2021-05-17 | 2021-08-06 | 安徽师范大学 | Three-dimensional flower-shaped ultrathin two-dimensional Ce and B doped Pt nanosheet and preparation method and application thereof |
| CN114464823A (en) * | 2022-01-21 | 2022-05-10 | 先进能源产业研究院(广州)有限公司 | Oxygen reduction reaction catalyst and preparation method thereof |
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