CN107123816A - A kind of on-vehicle fuel octahedra cathode alloy catalyst of new PtM and preparation method thereof - Google Patents
A kind of on-vehicle fuel octahedra cathode alloy catalyst of new PtM and preparation method thereof Download PDFInfo
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- CN107123816A CN107123816A CN201710327080.5A CN201710327080A CN107123816A CN 107123816 A CN107123816 A CN 107123816A CN 201710327080 A CN201710327080 A CN 201710327080A CN 107123816 A CN107123816 A CN 107123816A
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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
- H01M4/90—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
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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
- H01M4/90—Selection of catalytic material
- H01M4/92—Metals of platinum group
- H01M4/921—Alloys or mixtures with metallic elements
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- 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 present invention relates to a kind of on-vehicle fuel octahedra cathode alloy catalyst of new PtM and preparation method thereof, described catalyst agent uses the octahedra alloys of PtM as active component, the octahedra alloys of PtM are prepared with polyalcohol high temperature solution phase reduction method, loaded simultaneously and cathode catalyst for fuel cell is made on the carbon carrier, wherein, in PtM octahedron alloys, M is transition metal, one kind in its element selected from the race of the periodic table of elements the VIIIth and the Ith B races.Compared with prior art, catalyst activity of the invention is high, and preparation method is simple, technological process environmental protection, is adapted to large-scale production etc..
Description
Technical field
The present invention relates to electro-catalysis and Energy Conversion Technology field, more particularly, to a kind of on-vehicle fuel with new
PtM octahedron cathode alloy catalyst and preparation method thereof.
Background technology
Fuel cell (Fuel Cell) is a kind of by fuel (such as hydrogen, methanol, ethanol) and oxidant (such as oxygen, sky
Gas) chemical energy be converted into the device of electric energy.Because fuel cell power conversion is not limited by Carnot cycle, and reaction
The advantages of process is environmentally friendly, fuel cell, which turns into following, improves one of efficiency of energy utilization and the strategy of benefit, is also to learn
Art circle and business circles fall over each other the focus of research.In recent years, with economic and society development, the lance between energy and environment pollution
Shield increasingly sharpens, the often remaining mass energy waste material while energy is obtained.In face of this contradiction, fuel cell is used as one
The energy conversion device of kind of high-efficiency cleaning, as following power source, distributing power station, compact power ideal chose.
Fuel-cell device is made up of bipolar plates, gas diffusion layers, Electrocatalytic Layer and this 4 part of PEM.Wherein,
Electrocatalytic Layer is the core component of whole energy conversion device.The elctro-catalyst played a leading role in Electrocatalytic Layer is direct again
The key factor of fuel battery performance is influenceed, while being also one of biggest obstacle on low-temperature fuel cell commercialization road
(Front.Biosci.10(2005)492；Nano Lett.4(2004)191；).Due to the high catalytic activity of platinum, fuel
Cell catalyst is generally used as catalyst body (Chem.Mater.2001,13,312) using platinum.But because the price of noble metal platinum is held high
It is expensive, reserves shortage, thus the commercialization road of platinum-based fuel battery catalyst fails to embark on journey always.For the shadow of these two aspects
Ring, researcher focuses mainly on reducing the carrying capacity and research and development new fuel cell catalyst of fuel cell platinum, from the two sides
Face considers to reduce the cost of fuel-cell catalyst.
Low platinum (ECS.4 (2001) 1099；J.Am.Chem.Soc.128 (2006) 3504) and without platinum (Energy
Environ.Sci.4 (2011) 1238) research and development of fuel-cell catalyst reduce cost to a certain extent, but it is catalyzed
Power performance still can not meet electric vehicle performance demand.In recent years, different structure has been synthesized by ad hoc approach in the world
Pt bases catalyst improves catalyst activity and durability.Wherein specific morphology Pt bases catalyst, such as core shell structure (core-
Shell) (J.Phys.Chem.B 109 (2005) 22701), nano wire (nanowire) (Electrochim Acta, 53
(2003) 5804), nanocages (nanocage) (Electrochimica Acta 54 (2009) 6515) etc..These special types are catalyzed
Agent appears degree from the crystal formation of catalyst granules and distribution and is considered above, and is lived from the catalytic performance of unit catalyst and actual catalysis
Catalytic capability is lifted on property area.The Pt of such as Ma (Catal Commun, 11 (2010) 434) synthesisshell-Aucore/ C is urged
Agent, the performance in monocell is 4~5 times of business Pt/C catalyst；Chen etc. (Science 343 (2014) 1339) is ground
The specific morphology nanometer framework studied carefully, high catalytic activity and less catalytic surface masking due to monomer, with business Pt/C
The specific mass activity and 22 times of specific activity that 36 times of catalyst.Stamenkovic etc. (Science 315 (2007) 493) is proposed
Pt3Ni (111) single crystalline catalyst has good catalytic activity, and the activity of its catalytic oxygen reduction reaction (ORR) is Pt (111)
Ten times of surface, are 90 times of business Pt/C nanocatalysts in the market.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of on-vehicle fuel
With octahedra cathode alloy catalyst of new PtM and preparation method thereof.Faced for foregoing on-vehicle fuel negative electrode
Activity, durability and Cost Problems, the present inventor is by the repacking design and substantial amounts of specific experiment to experimental provision, to pure platinum
Catalyst and platinum alloy octahedral body catalyst (PtM/C) each performance sufficiently compare；Finally closed using the platinum of high activity
Golden octahedron catalysed particulate is as active component, while being equipped with the graphite of high conductivity, the carbon material such as carbon black is ensureing high activity
Certain durability has been provided simultaneously with, the present invention is completed.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of on-vehicle fuel octahedra cathode alloy catalyst of new PtM, including carbon carrier, and load to carbon
In the octahedra alloys of active component PtM on carrier, PtM octahedron alloys, M is transition metal, and it is selected from the periodic table of elements
One kind in the element of VIIIth race and the Ith B races.
As preferred embodiment, in the catalyst, the content ratio of carbon carrier and the octahedra alloys of PtM is 1.2-
1.8:In the octahedra alloy of 1, the PtM, Pt mass content is 0.1-99.9%, and remaining is transition metal M.
As above-mentioned preferred embodiment it is further preferred that in the octahedra alloys of described PtM, Pt mass content is 1-
80%, remaining is transition metal M.
As the further preferred of above-mentioned further preferred embodiment, in the octahedra alloys of described PtM, Pt quality contains
Measure as 60-75%, remaining is transition metal M.
As preferred embodiment, transition metal M is Fe, Co, Ni or Cu etc..
As preferred embodiment, described carbon carrier selects 50~1500m of specific surface area2/ g traditional carbon material or
New c-based nanomaterial, wherein, traditional carbon material includes activated carbon, graphite or carbon black, and new c-based nanomaterial includes receiving
Rice carbon pipe, carbon nano-fiber or carbon nanohorn.
The on-vehicle fuel preparation method of the octahedra cathode alloy catalyst of new PtM, comprises the following steps：
(1) PDDA and polyalcohol ultrasonic mixing are taken, add acetylacetone,2,4-pentanedione platinum and
Transition metal M salt, ultrasonic agitation obtains solution A；
(2) carbon carrier and polyalcohol are weighed, ultrasonic agitation obtains homogeneous ater solution, is designated as solution B；
(3) solution A and solution B are mixed, mixed solution C is made in ultrasonic agitation；
(4) mixed solution C is taken to be placed under inert gas shielding, heat temperature raising reaction, gained reaction product is through filtering, washing
After washing, drying, that is, obtain the octahedra cathode alloy catalyst of the new PtM of purpose product.
It is PDDA, polynary in step (1) solution A as preferred embodiment
The addition ratio of alcohol, acetylacetone,2,4-pentanedione platinum and transition metal M salt is 150-200ul：10mL：50-70mg：35-45mg；
In step (2) solution B, the addition ratio of carbon carrier and polyalcohol is 45-55mg：10mL；
In step (3) solution C, the addition ratio of the polyol component in both addition satisfactions of solution A and solution B is 1:
1。
As preferred embodiment, described polyalcohol is ethylene glycol, and described transition metal M salt is ethene acetone M
Or nitric acid M.
As preferred embodiment, the process conditions of heating response are in step (4)：Temperature is more than 170 DEG C, but not
More than its boiling point, the reaction time is 1-3h.
Compared with prior art, the present invention has advantages below：
(1) preparation method is simple, and technological process environmental protection, catalyst granules pattern is homogeneous, catalytic activity height etc..
(2) this preparation method controls the growth of crystal grain and the formation of pattern by adding specific surfactant, and generation is equal
One stable photocatalyst crystals particle.
(3) photocatalyst crystals particle is octahedron in the present invention, and catalytically active surface is PtM (111) crystal face, wherein managing
By upper, PtNi octahedrons Pt3The catalytic activity of Ni (111) crystal face be respectively traditional pure platinum catalyst and Pt (111) crystal faces and
10 times and 90 times of Pt (100) crystal face.
(4) Pt modifies (alloying) by transition metal M can make Pt-Pt hypotelorisms, make what oxygen molecule was adsorbed on Pt
Probability is greatly increased, meanwhile, d electronics is from Pt to another metal transfer, and empty d states turn into the acceptor of lone pair electrons, enhancing
Absorption affinities of the Pt to oxygen species, metal-oxygen interaction is stronger, accelerates the fracture of O -- O bond, accelerates hydrogen reduction speed,
The performance of catalyst is improved.
Brief description of the drawings
Fig. 1 is octahedra alloy catalyst transmission electron microscope (TEM) figures of PtNi；
Fig. 2 is that the octahedra alloy catalysts of PtNi prepare course of reaction schematic diagram；
Fig. 3 is the octahedra alloy catalysts of PtNi and business Pt/C catalyst cyclic voltammetry test (CV) figure；
Fig. 4 is the octahedra alloy catalysts of PtNi and business Pt/C catalyst linear sweep voltammetry (LSV) figure；
Fig. 5 is octahedra alloy catalyst X-ray diffraction (XRD) figures of PtNi.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Reagent used in following each embodiments is unless otherwise instructed, then it represents that what it was used is conventional commercial production
Product.Carbon carrier can be 50~1500m in specific surface area2/ g's includes activated carbon, graphite, traditional carbon material such as carbon black, and
CNT, carbon nano-fiber, the selection such as the new c-based nanomaterial such as carbon nanohorn.
Embodiment 1：
A kind of preparation method of the octahedra fuel cell catalyst particles of platinum nickel, shown in Figure 2, step is as follows：
By 180ul PDDAs (PDDA) and 10ml ethylene glycol (EG) ultrasonic mixing
10min, is added thereto ultrasonic agitation 20min to yellowish green by the nickel acetylacetonate of 58.8mg acetylacetone,2,4-pentanedione platinum and 38.4mg afterwards
Color suspension, is considered as solution A.By 51.3mg carbon carriers and 10ml ethylene glycol (EG) ultrasonic agitation 10min to homogeneous ater
Solution, is considered as solution B.Solution A and solution B are mixed, ultrasonic agitation 15min is considered as solution to ater uniform solution
C.Solution C and clean 5cm fusiform Stirring magnetons are added into 250ml three neck round bottom, and vacuumizes ventilation dress
Connection is put, vacuumize process is carried out to three neck round bottom, then nitrogen is filled with to it, this pumping gas replenishment process is repeated 3 times
Afterwards, nitrogen is filled with to three neck round bottom so that 500cc/min inflation rate is stable, forms stable nitrogen atmosphere.By three necks
Round-bottomed flask, which is inserted in oil bath pan, is warming up to 170 DEG C, reacts 2h, obtains reaction product.Reaction product is transferred to core suction filtration
Device adds excessive amount of ethanol solution and ultra-pure water, continuous suction filtration, and obtained solid product is placed in 60 DEG C of vacuum drying ovens dry 8h and obtained
To PtM octahedrons alloy catalyst/C.
Present invention applicant passes through many experiments, synthesizes the octahedra fuel battery cathod catalyst of platinum nickel, as shown in Figure 1
TEM photos can see that particle size is stable, size is between 10-20nm.
From Fig. 3 electrochemical surface areas (ECSA) as can be seen that the electro-chemical activity face of the octahedral body catalyst is than business
It is small, but specific mass activity exceed more than five times of business platinum carbon catalyst (finding out in such as Fig. 4 linear sweep voltammetries curve).This is
Because the catalytic activity of its each crystal face is the plane of crystal for being significantly better than business platinum carbon catalyst.As seen from Figure 5, PtNi
(111) crystal face peak intensity is larger, represents that PtNi is presented with (111) crystal face, i.e. photocatalyst crystals particle is in octahedral form
In the presence of.Simultaneously because the physical barrier of carbon carrier substrate, and strong interaction between catalyst, catalyst granules exists
Reunion is not susceptible in course of reaction to grow up, dissolves and migrates, thus makes the durability of main active component more preferably.
Embodiment 2：
A kind of preparation method of the octahedra fuel cell catalyst particles of platinum nickel, step is as follows：
By 180ul PDDAs (PDDA) and 10ml ethylene glycol (EG) ultrasonic mixing
10min, is added thereto ultrasonic agitation 20min by the nickel nitrate of 58.8mg acetylacetone,2,4-pentanedione platinum and 43.6mg afterwards and hangs to yellow green
Turbid liquid, is considered as solution A.By 51.3mg carbon carriers and 10ml ethylene glycol (EG) ultrasonic agitation 10min to homogeneous ater solution,
It is considered as solution B.Solution A and solution B are mixed, ultrasonic agitation 15min is considered as solution C to ater uniform solution.To
Solution C and clean 5cm fusiform Stirring magnetons are added in 250ml three neck round bottom, and vacuumizes air-breather company
Connect, vacuumize process is carried out to three neck round bottom, then nitrogen is filled with to it, this pumping gas replenishment process is repeated after 3 times, with
500cc/min inflation rate is stable to be filled with nitrogen to three neck round bottom, forms stable nitrogen atmosphere.Three neck round bottoms are burnt
Bottle, which is inserted in oil bath pan, is warming up to 170 DEG C, reacts 2h, obtains reaction product.Reaction product is transferred into core Suction filtration device to add
Excessive amount of ethanol solution and ultra-pure water, continuous suction filtration, obtained solid product are placed in 60 DEG C of vacuum drying ovens dry 8h and obtain PtM eight
Face body alloy catalyst/C.
Embodiment 3：
A kind of preparation method of the octahedra fuel cell catalyst particles of platinum nickel, step is as follows：
By 1.5g dimethylformamides (DMF), 58.8mg acetylacetone,2,4-pentanedione platinum and 38.4mg nickel acetylacetonate ultrasound are mixed
Close, duration 10min.180ul PDDAs (PDDA) and 10ml are added in the solution afterwards
Ethylene glycol (EG), ultrasonic mixing 10min is considered as solution A to yellow green uniform solution.By 51.3mg carbon carriers and 10ml ethylene glycol
(EG) ultrasonic agitation 10min is considered as solution B to homogeneous ater solution.Solution A and solution B are mixed, ultrasonic agitation
15min is considered as solution C to ater uniform solution.Solution C and clean 5cm spindles are added into 250ml three neck round bottom
Shape Stirring magneton, and air-breather connection is vacuumized, vacuumize process is carried out to three neck round bottom, then nitrogen is filled with to it
Gas, this pumping gas replenishment process is repeated after 3 times, and nitrogen is filled with to three neck round bottom so that 500cc/min inflation rate is stable
Gas, forms stable nitrogen atmosphere.Three neck round bottom is inserted in oil bath pan and is warming up to 170 DEG C, 2h is reacted, reaction production is obtained
Thing.Reaction product is transferred to core Suction filtration device plus excessive amount of ethanol solution and ultra-pure water, continuous suction filtration, obtained solid product
It is placed in 60 DEG C of vacuum drying ovens dry 8h and obtains PtM octahedrons alloy catalyst/C.
Embodiment 4
A kind of preparation method of the octahedra fuel cell catalyst particles of platinum nickel, step is as follows：
By 160ul PDDAs (PDDA) and 10ml ethylene glycol (EG) ultrasonic mixing
10min, is added thereto ultrasonic agitation 20min by the nickel acetylacetonate of 50mg acetylacetone,2,4-pentanedione platinum and 35mg afterwards and hangs to yellow green
Turbid liquid, is considered as solution A.By 45mg carbon carriers and 10ml ethylene glycol (EG) ultrasonic agitation 10min to homogeneous ater solution, depending on
For solution B.Solution A and solution B are mixed, ultrasonic agitation 15min is considered as solution C to ater uniform solution.To
Solution C and clean 5cm fusiform Stirring magnetons are added in 250ml three neck round bottom, and vacuumizes air-breather company
Connect, vacuumize process is carried out to three neck round bottom, then nitrogen is filled with to it, this pumping gas replenishment process is repeated after 3 times, with
500cc/min inflation rate is stable to be filled with nitrogen to three neck round bottom, forms stable nitrogen atmosphere.Three neck round bottoms are burnt
Bottle, which is inserted in oil bath pan, is warming up to 180 DEG C, reacts 1h, obtains reaction product.Reaction product is transferred into core Suction filtration device to add
Excessive amount of ethanol solution and ultra-pure water, continuous suction filtration, obtained solid product are placed in 60 DEG C of vacuum drying ovens dry 8h and obtain PtM eight
Face body alloy catalyst/C.
Embodiment 5
A kind of preparation method of the octahedra fuel cell catalyst particles of platinum nickel, step is as follows：
By 200ul PDDAs (PDDA) and 10ml ethylene glycol (EG) ultrasonic mixing
10min, is added thereto ultrasonic agitation 20min by the nickel acetylacetonate of 70mg acetylacetone,2,4-pentanedione platinum and 45mg afterwards and hangs to yellow green
Turbid liquid, is considered as solution A.By 55mg carbon carriers and 10ml ethylene glycol (EG) ultrasonic agitation 10min to homogeneous ater solution, depending on
For solution B.Solution A and solution B are mixed, ultrasonic agitation 15min is considered as solution C to ater uniform solution.To
Solution C and clean 5cm fusiform Stirring magnetons are added in 250ml three neck round bottom, and vacuumizes air-breather company
Connect, vacuumize process is carried out to three neck round bottom, then nitrogen is filled with to it, this pumping gas replenishment process is repeated after 3 times, with
500cc/min inflation rate is stable to be filled with nitrogen to three neck round bottom, forms stable nitrogen atmosphere.Three neck round bottoms are burnt
Bottle, which is inserted in oil bath pan, is warming up to 175 DEG C, reacts 3h, obtains reaction product.Reaction product is transferred into core Suction filtration device to add
Excessive amount of ethanol solution and ultra-pure water, continuous suction filtration, obtained solid product are placed in 60 DEG C of vacuum drying ovens dry 8h and obtain PtM eight
Face body alloy catalyst/C.
Embodiment 6
A kind of preparation method of the octahedra fuel cell catalyst particles of platinum nickel, step is as follows：
By 175ul PDDAs (PDDA) and 10ml ethylene glycol (EG) ultrasonic mixing
10min, is added thereto ultrasonic agitation 20min by the nickel acetylacetonate of 60mg acetylacetone,2,4-pentanedione platinum and 40mg afterwards and hangs to yellow green
Turbid liquid, is considered as solution A.By 50mg carbon carriers and 10ml ethylene glycol (EG) ultrasonic agitation 10min to homogeneous ater solution, depending on
For solution B.Solution A and solution B are mixed, ultrasonic agitation 15min is considered as solution C to ater uniform solution.To
Solution C and clean 5cm fusiform Stirring magnetons are added in 250ml three neck round bottom, and vacuumizes air-breather company
Connect, vacuumize process is carried out to three neck round bottom, then nitrogen is filled with to it, this pumping gas replenishment process is repeated after 3 times, with
500cc/min inflation rate is stable to be filled with nitrogen to three neck round bottom, forms stable nitrogen atmosphere.Three neck round bottoms are burnt
Bottle, which is inserted in oil bath pan, is warming up to 170 DEG C, reacts 2h, obtains reaction product.Reaction product is transferred into core Suction filtration device to add
Excessive amount of ethanol solution and ultra-pure water, continuous suction filtration, obtained solid product are placed in 60 DEG C of vacuum drying ovens dry 8h and obtain PtM eight
Face body alloy catalyst/C.
Embodiment 7
Compared with Example 1, in addition to nickel acetylacetonate is replaced with into ferric acetyl acetonade, remaining is.
Embodiment 8
Compared with Example 1, in addition to nickel acetylacetonate is replaced with into acetylacetone copper, remaining is.
Embodiment 9
Compared with Example 1, in addition to nickel acetylacetonate is replaced with into acetylacetone cobalt, remaining is.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using invention.
Person skilled in the art obviously can easily make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without passing through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel are according to the announcement of the present invention, and not departing from improvement and modification that scope made all should be the present invention's
Within protection domain.
Claims (10)
1. a kind of on-vehicle fuel octahedra cathode alloy catalyst of new PtM, it is characterised in that including carbon carrier, with
And load in the octahedra alloy of active component PtM on carbon carrier, PtM octahedron alloys, M is transition metal, and it is selected from
One kind in the element of the race of the periodic table of elements the VIIIth and the Ith B races.
2. a kind of on-vehicle fuel according to claim 1 octahedra cathode alloy catalyst of new PtM, its feature
It is, in the catalyst, the content ratio of carbon carrier and the octahedra alloys of PtM is 1.2-1.8:The octahedra alloy of 1, the PtM
In, Pt mass content is 0.1-99.9%, and remaining is transition metal M.
3. a kind of on-vehicle fuel according to claim 2 octahedra cathode alloy catalyst of new PtM, its feature
It is, in the octahedra alloys of described PtM, Pt mass content is 1-80%, and remaining is transition metal M.
4. a kind of on-vehicle fuel according to claim 3 octahedra cathode alloy catalyst of new PtM, its feature
It is, in the octahedra alloys of described PtM, Pt mass content is 60-75%, and remaining is transition metal M.
5. a kind of on-vehicle fuel according to claim 1 octahedra cathode alloy catalyst of new PtM, its feature
It is, transition metal M is Fe, Co, Ni or Cu.
6. a kind of on-vehicle fuel according to claim 1 octahedra cathode alloy catalyst of new PtM, its feature
It is, described carbon carrier selects 50~1500m of specific surface area2/ g traditional carbon material or new c-based nanomaterial, wherein,
Traditional carbon material includes activated carbon, graphite or carbon black, and new c-based nanomaterial is received including CNT, carbon nano-fiber or carbon
Rice angle.
7. the preparation of the on-vehicle fuel octahedra cathode alloy catalyst of new PtM as described in claim 1-6 is any
Method, it is characterised in that comprise the following steps：
(1) PDDA and polyalcohol ultrasonic mixing are taken, acetylacetone,2,4-pentanedione platinum and transition is added
Metal M salt, ultrasonic agitation obtains solution A；
(2) carbon carrier and polyalcohol are weighed, ultrasonic agitation obtains homogeneous ater solution, is designated as solution B；
(3) solution A and solution B are mixed, mixed solution C is made in ultrasonic agitation；
(4) mixed solution C is taken to be placed under inert gas shielding, heat temperature raising reaction, gained reaction product is through filtering, washing, do
After dry, that is, obtain the octahedra cathode alloy catalyst of the new PtM of purpose product.
8. a kind of on-vehicle fuel according to claim 7 preparation of the octahedra cathode alloy catalyst of new PtM
Method, it is characterised in that in step (1) solution A, PDDA, polyalcohol, acetylacetone,2,4-pentanedione platinum
Addition ratio with transition metal M salt is 150-200ul：10mL：50-70mg：35-45mg；
In step (2) solution B, the addition ratio of carbon carrier and polyalcohol is 45-55mg：10mL；
In step (3) solution C, the addition ratio of the polyol component in both addition satisfactions of solution A and solution B is 1:1.
9. a kind of on-vehicle fuel according to claim 7 preparation of the octahedra cathode alloy catalyst of new PtM
Method, it is characterised in that described polyalcohol is ethylene glycol, described transition metal M salt is ethene acetone M or nitric acid M.
10. a kind of on-vehicle fuel according to claim 7 preparation of the octahedra cathode alloy catalyst of new PtM
Method, it is characterised in that the process conditions of heating response are in step (4)：Temperature is more than 170 DEG C, but no more than its boiling point,
Reaction time is 1-3h.
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| CN109713323A (en) * | 2018-11-27 | 2019-05-03 | 浙江大学 | A kind of preparation method of PtNi/C alloy catalyst |
| CN112825357A (en) * | 2019-11-21 | 2021-05-21 | 中国科学院大连化学物理研究所 | Pt-based multi-component transition metal alloy nano electro-catalyst, preparation and application |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109065903A (en) * | 2018-09-17 | 2018-12-21 | 苏州擎动动力科技有限公司 | A kind of preparation method of high activity loading type octahedron ternary alloy catalyst |
| CN109713323A (en) * | 2018-11-27 | 2019-05-03 | 浙江大学 | A kind of preparation method of PtNi/C alloy catalyst |
| CN109713323B (en) * | 2018-11-27 | 2021-02-09 | 浙江大学 | Preparation method of PtNi/C alloy catalyst |
| CN112825357A (en) * | 2019-11-21 | 2021-05-21 | 中国科学院大连化学物理研究所 | Pt-based multi-component transition metal alloy nano electro-catalyst, preparation and application |
| CN112825357B (en) * | 2019-11-21 | 2022-05-06 | 中国科学院大连化学物理研究所 | Pt-based multi-component transition metal alloy nano electro-catalyst, preparation and application |
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