CN108172845A - A kind of preparation method of fuel cell Pt bases nucleocapsid elctro-catalyst - Google Patents
A kind of preparation method of fuel cell Pt bases nucleocapsid elctro-catalyst Download PDFInfo
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- CN108172845A CN108172845A CN201611120234.5A CN201611120234A CN108172845A CN 108172845 A CN108172845 A CN 108172845A CN 201611120234 A CN201611120234 A CN 201611120234A CN 108172845 A CN108172845 A CN 108172845A
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- Prior art keywords
- copper
- fuel cell
- catalyst
- elctro
- electrode
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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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- 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
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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
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
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- Manufacturing & Machinery (AREA)
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Abstract
The present invention provides a kind of preparation method of Pt bases catalyst with core-casing structure.Its step are as follows：（1）Copper facing：Porous carbon paper is cathode electrode, and plating solution has the component containing following concentration to form：100 150g/l of copper sulphate, sodium citrate 60 80g/l, pH 5, at 25 DEG C, current density 2A/dm2Under the conditions of be electroplated 15 seconds,（2）Electrode after copper facing is placed in 5 8%H2PtCl6 solution 10 minutes, obtains the fuel cell Pt base nucleocapsid elctro-catalysts of platinum package copper.The present invention has the advantages of Pt dosages are few, and catalytic activity is high and stability is high.
Description
Technical field
The present invention relates to a kind of preparation methods of fuel cell Pt bases nucleocapsid elctro-catalyst.
Background technology
Fuel cell be it is a kind of by chemical energy by electrochemical reaction be converted into electric energy power generator it have
Efficiently, environmentally friendly, low noise and high reliability, thus by countries in the world government, enterprise and correlative study machine
The great attention of structure.Nowadays, countries in the world accumulate warp all in the various demonstrative projects by fuel cell car and Hydrogen Energy
It tests, promotes technological progress and public cognitive, finally to realize its industrialization.
However commercializing fuel cells application is at present also by of high cost, durability and reliability be to be improved and base
The restriction of Infrastructure deficiency etc., wherein the Pt catalyst for being known as Universal Catalyst is a big restraining factors.Therefore,
People have done a large amount of exploration and research around various low Pt and non-Pt catalyst,.Develop binary, ternary even four
First alloy catalyst, but such catalyst stability is low.On the other hand, people, which also begin to study other non-Pt noble metals, urges
Agent such as Pd bases, Ir bases, Ru bases etc. and non-precious metal catalyst, the catalytic performance of such non-Pt catalyst are all too late
Therefore how Pt catalyst, develops the elctro-catalyst of high-performance, low carrying capacity, high stability, to reduce to Pt's
It relies on, the cost of fuel cell is reduced, as the problem of urgent need to resolve in fuel cell studies field.
Research in recent years is found, design and rational and change are carried out to the structure of metal catalyst particles on nanoscale
Cutting is learned it is possible that significantly changing the physicochemical properties of metallic catalyst, obtains the better catalyst of performance wherein nucleocapsids
Structure nano metallic particles have special electronic structure and surface nature, thus catalysis etc. fields application increasingly by
To attention.
Invention content
In view of the deficiencies of the prior art, the technical problem to be solved by the invention is to provide a kind of Pt bases nucleocapsids to urge
The preparation method of agent, catalytic activity high and stability high the advantages of few with Pt dosages.
In order to solve the above technical problems, the technical solution adopted by the present invention is that, a kind of system of Pt bases catalyst with core-casing structure
Preparation Method, its step are as follows：（1）Copper facing：Porous carbon paper is cathode electrode, and plating solution has the component containing following concentration to form：Sulphur
Sour copper 100-150g/l, sodium citrate 60-80g/l, pH 5, at 25 DEG C, current density 2A/dm2Under the conditions of be electroplated 15 seconds,
（2）Electrode after copper facing is placed in 5-8%H2PtCl6 solution 10 minutes, obtains the fuel cell Pt base nucleocapsids of platinum package copper
Elctro-catalyst.
The technical solution that the present invention optimizes is that a kind of preparation method of Pt bases catalyst with core-casing structure, its step are as follows：
（1）Copper facing：Porous carbon paper is cathode electrode, and plating solution has the component containing following concentration to form：Copper sulphate 100g/l, sodium citrate
60g/l, pH 5, at 25 DEG C, current density 2A/dm2Under the conditions of be electroplated 15 seconds,（2）Electrode after copper facing is placed in 5%H2PtCl6
10 minutes in solution, the fuel cell Pt base nucleocapsid elctro-catalysts of platinum package copper are obtained.
The technical solution that the present invention optimizes is that a kind of preparation method of Pt bases catalyst with core-casing structure, its step are as follows：
（1）Copper facing：Porous carbon paper is cathode electrode, and plating solution has the component containing following concentration to form：Copper sulphate 150g/l, sodium citrate
80g/l, pH 5, at 25 DEG C, current density 2A/dm2Under the conditions of be electroplated 15 seconds,（2）Electrode after copper facing is placed in 8%H2PtCl6
10 minutes in solution, the fuel cell Pt base nucleocapsid elctro-catalysts of platinum package copper are obtained.
The technical solution that the present invention optimizes is that a kind of preparation method of Pt bases catalyst with core-casing structure, its step are as follows：
（1）Copper facing：Porous carbon paper is cathode electrode, and plating solution has the component containing following concentration to form：Copper sulphate 120g/l, sodium citrate
70g/l, pH 5, at 25 DEG C, current density 2A/dm2Under the conditions of be electroplated 15 seconds,（2）Electrode after copper facing is placed in 6%H2PtCl6
10 minutes in solution, the fuel cell Pt base nucleocapsid elctro-catalysts of platinum package copper are obtained.
The invention has the advantages that the preparation method of the Pt base catalyst with core-casing structure of the present invention, with Pt dosages
It is few, the advantages of catalytic activity is high and stability is high.
Specific embodiment
With reference to specific embodiment, the present invention is further explained.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after present disclosure has been read, those skilled in the art can
To be made various changes or modifications to the present invention, such equivalent forms equally fall within range defined herein.
Embodiment 1,
A kind of preparation method of Pt bases catalyst with core-casing structure, its step are as follows：
（1）Copper facing：Porous carbon paper is cathode electrode, and plating solution has the component containing following concentration to form：Copper sulphate 100g/l, lemon
Sour sodium 60g/l, pH 5, at 25 DEG C, current density 2A/dm2Under the conditions of be electroplated 15 seconds,（2）Electrode after copper facing is placed in 5%
10 minutes in H2PtCl6 solution, the fuel cell Pt base nucleocapsid elctro-catalysts of platinum package copper are obtained.
Embodiment 2,
A kind of preparation method of Pt bases catalyst with core-casing structure, its step are as follows：
（1）Copper facing：Porous carbon paper is cathode electrode, and plating solution has the component containing following concentration to form：Copper sulphate 150g/l, lemon
Sour sodium 80g/l, pH 5, at 25 DEG C, current density 2A/dm2Under the conditions of be electroplated 15 seconds,（2）Electrode after copper facing is placed in 8%
10 minutes in H2PtCl6 solution, the fuel cell Pt base nucleocapsid elctro-catalysts of platinum package copper are obtained.
Embodiment 3,
A kind of preparation method of Pt bases catalyst with core-casing structure, its step are as follows：（1）Copper facing：Porous carbon paper is cathode electrode, is plated
Liquid has the component containing following concentration to form：Copper sulphate 120g/l, sodium citrate 70g/l, pH 5, at 25 DEG C, current density
2A/dm2Under the conditions of be electroplated 15 seconds,（2）Electrode after copper facing is placed in 6%H2PtCl6 solution 10 minutes, obtains platinum package copper
Fuel cell Pt base nucleocapsid elctro-catalysts.
Although the present invention has been disclosed in the preferred embodiments as above, however, it is not to limit the invention, any affiliated technology
The technical staff in field in the change and improvement for not departing from the spirit and scope of the present invention and being done, falls within the guarantor of the present invention
Protect range.
Claims (4)
1. a kind of preparation method of Pt bases catalyst with core-casing structure, it is characterised in that step is as follows：（1）Copper facing：Porous carbon paper is
Cathode electrode, plating solution have the component containing following concentration to form：Copper sulphate 100-150g/l, sodium citrate 60-80g/l, pH 5,
At 25 DEG C, current density 2A/dm2Under the conditions of be electroplated 15 seconds,（2）Electrode after copper facing is placed in 10 in 5-8%H2PtCl6 solution
Minute, obtain the fuel cell Pt base nucleocapsid elctro-catalysts of platinum package copper.
2. the preparation method of Pt base catalyst with core-casing structure, it is characterised in that its step are as follows：（1）Copper facing：Porous carbon paper is the moon
Pole electrode, plating solution have the component containing following concentration to form：Copper sulphate 100g/l, sodium citrate 60g/l, pH 5, at 25 DEG C,
Current density 2A/dm2Under the conditions of be electroplated 15 seconds,（2）Electrode after copper facing is placed in 5%H2PtCl6 solution 10 minutes, obtains platinum
Wrap up the fuel cell Pt base nucleocapsid elctro-catalysts of copper.
3. the preparation method of Pt bases catalyst with core-casing structure described in claim 1, it is characterised in that its step are as follows：（1）Plating
Copper：Porous carbon paper is cathode electrode, and plating solution has the component containing following concentration to form：Copper sulphate 150g/l, sodium citrate 80g/
L, pH 5, at 25 DEG C, current density 2A/dm2Under the conditions of be electroplated 15 seconds,（2）Electrode after copper facing is placed in 8%H2PtCl6 solution
In 10 minutes, obtain platinum package copper fuel cell Pt base nucleocapsid elctro-catalysts.
4. the preparation method of Pt bases catalyst with core-casing structure described in claim 1, it is characterised in that its step are as follows：（1）Plating
Copper：Porous carbon paper is cathode electrode, and plating solution has the component containing following concentration to form：Copper sulphate 120g/l, sodium citrate 70g/
L, pH 5, at 25 DEG C, current density 2A/dm2Under the conditions of be electroplated 15 seconds,（2）Electrode after copper facing is placed in 6%H2PtCl6 solution
In 10 minutes, obtain platinum package copper fuel cell Pt base nucleocapsid elctro-catalysts.
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| CN201611120234.5A CN108172845A (en) | 2016-12-08 | 2016-12-08 | A kind of preparation method of fuel cell Pt bases nucleocapsid elctro-catalyst |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111430731A (en) * | 2020-04-01 | 2020-07-17 | 安徽师范大学 | Porous carbon platinum-loaded material and preparation method and application thereof |
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2016
- 2016-12-08 CN CN201611120234.5A patent/CN108172845A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111430731A (en) * | 2020-04-01 | 2020-07-17 | 安徽师范大学 | Porous carbon platinum-loaded material and preparation method and application thereof |
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Application publication date: 20180615 |