CN103872344A - Preparation method of platinum-carbon catalyst for fuel cell - Google Patents
Preparation method of platinum-carbon catalyst for fuel cell Download PDFInfo
- Publication number
- CN103872344A CN103872344A CN201410081454.6A CN201410081454A CN103872344A CN 103872344 A CN103872344 A CN 103872344A CN 201410081454 A CN201410081454 A CN 201410081454A CN 103872344 A CN103872344 A CN 103872344A
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- Prior art keywords
- conductive black
- catalyst
- dispersant
- platinum
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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
- H01M4/925—Metals of platinum group supported on carriers, e.g. powder carriers
- H01M4/926—Metals of platinum group supported on carriers, e.g. powder carriers on carbon or graphite
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inert Electrodes (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a preparation method of a platinum-carbon catalyst for a fuel cell. The preparation method comprises the following steps: (A) pre-treating conductive carbon black; (B) uniformly dispersing the conductive carbon black in a dispersant, wherein the dispersant comprises the following components in parts by weight: 1 part of ethanol, 1-3 parts of isopropanol and 1-3 parts of glycerinum and the weight ratio of the conductive carbon black to the dispersant is 1:15; (C) uniformly stirring the mixture of a chloroplatinic acid prepared in advance and the slurry obtained in step B; (D) heating the slurry obtained in step C in a reaction furnace at high temperature, wherein the temperature range is 80-300 DEG C and the heating time is 10-30 minutes; (E) adding a precipitant to cool and precipitate and again repeating step D for 2-3 times; (F) putting the catalyst into a vacuum drying box and drying at 80 DEG C for further use after the chloroplatinic acid is fully reduced. The prepared platinum-carbon catalyst has small impurity content and a test of a proton exchange membrane fuel cell shows that the catalytic performance of the prepared catalyst by the method to hydrogen oxidation is equivalent with that of a commercial catalyst.
Description
Technical field:
The present invention relates to technical field of bearings, more specifically to a kind of roller bearing units with punching press square seat.
Background technology:
At present, the fuel cell platinum C catalyst of domestic use, due to production technology, mainly has the following disadvantages, and the one, impurity content is high, and the 2nd, catalytic performance is not high.
Summary of the invention:
Object of the present invention is exactly the deficiency for prior art, and fuel cell platinum C catalyst preparation method is provided, its impurity content is little, and Proton Exchange Membrane Fuel Cells but battery testing show, catalyst prepared by the method catalytic performance to oxidation of hydrogen is suitable with commercial catalyst performance.
Technology solution of the present invention is as follows:
Platinum C catalyst preparation method for fuel cell, it comprises the steps: to comprise the pre-treatment of A, conductive black:
1), the forerunner of conductive black carrier reduction, conductive black is put into special stainless steel mould, heating rustless steel container, makes its temperature reach 40～100 degree, purity is passed into higher than 99.99% high-purity hydrogen in the rustless steel container of sealing and reduces 0.5～1 hour;
2), conductive black purifies, and conductive black is dissolved in to the ultrasonic concussion of isopropyl alcohol 0.5h～1h, puts into sand core filter and filters, wash away and add clear water cleaning 3 times, vacuumize after isopropyl alcohol;
B, conductive black disperse, and conductive black is uniformly dispersed in dispersant, and dispersant s fills a prescription and is, ethanol by weight: isopropyl alcohol: glycerine=1:1～3:1～3, and the ratio of conductive black and dispersant is 1:15 by weight;
C, stir after the platinum acid chloride solution preparing is in advance mixed with B step gained slurries, add reducing agent, the formula of reducing agent is formaldehyde by weight: sodium formate: ethanol=1:1～3:1～3, and the ratio of chloroplatinic acid and reducing agent is 1:1～3 by weight;
D, by C step gained slurries high-temperature heating in reacting furnace, temperature range be 80～300 degree, be 10min～30min heating time, add the cooling precipitation of precipitation reagent, again repeat D step 2-3 time, after chloroplatinic acid is fully reduced, catalyst is put into vacuum drying chamber 80 degree and dry.
Beneficial effect of the present invention is:
Employing chloroplatinic acid is presoma, prepare by precipitation conversion process the carbon supported platinum catalyst that platinum carrying capacity is 10%-100%, the tiny homogeneous of the granularity of nano-platinum particle in the catalyst preparing by the method (about 4-6 nanometer) is uniformly dispersed on carrier, and impurity content is little.Proton Exchange Membrane Fuel Cells but battery testing show, catalyst prepared by the method catalytic performance to oxidation of hydrogen is suitable with commercial catalyst performance.
Embodiment:
Embodiment: platinum C catalyst preparation method for fuel cell, it comprises the steps: to comprise the pre-treatment of A, conductive black:
1), the forerunner of conductive black carrier reduction, conductive black is put into special stainless steel mould, heating rustless steel container, makes its temperature reach 40～100 degree, purity is passed into higher than 99.99% high-purity hydrogen in the rustless steel container of sealing and reduces 0.5～1 hour;
2), conductive black purifies, and conductive black is dissolved in to the ultrasonic concussion of isopropyl alcohol 0.5h～1h, puts into sand core filter and filters, wash away and add clear water cleaning 3 times, vacuumize after isopropyl alcohol;
B, conductive black disperse, and conductive black is uniformly dispersed in dispersant, and dispersant s fills a prescription and is, ethanol by weight: isopropyl alcohol: glycerine=1:1～3:1～3, and the ratio of conductive black and dispersant is 1:15 by weight;
C, stir after the platinum acid chloride solution preparing is in advance mixed with B step gained slurries, add reducing agent, the formula of reducing agent is formaldehyde by weight: sodium formate: ethanol=1:1～3:1～3, and the ratio of chloroplatinic acid and reducing agent is 1:1～3 by weight;
D, by C step gained slurries high-temperature heating in reacting furnace, temperature range be 80～300 degree, be 10min～30min heating time, add the cooling precipitation of precipitation reagent, again repeat D step 2-3 time, after chloroplatinic acid is fully reduced, catalyst is put into vacuum drying chamber 80 degree and dry.
Operation principle: employing chloroplatinic acid is presoma, prepare by precipitation conversion process the carbon supported platinum catalyst that platinum carrying capacity is 10%-100%, the tiny homogeneous of the granularity of nano-platinum particle in the catalyst preparing by the method (about 4-6 nanometer) is uniformly dispersed on carrier, and impurity content is little.Proton Exchange Membrane Fuel Cells but battery testing show, catalyst prepared by the method catalytic performance to oxidation of hydrogen is suitable with commercial catalyst performance.
Claims (1)
1. platinum C catalyst preparation method for fuel cell, is characterized in that: it comprises the steps: to comprise the pre-treatment of A, conductive black:
1), the forerunner of conductive black carrier reduction, conductive black is put into special stainless steel mould, heating rustless steel container, makes its temperature reach 40～100 degree, purity is passed into higher than 99.99% high-purity hydrogen in the rustless steel container of sealing and reduces 0.5～1 hour;
2), conductive black purifies, and conductive black is dissolved in to the ultrasonic concussion of isopropyl alcohol 0.5h～1h, puts into sand core filter and filters, wash away and add clear water cleaning 3 times, vacuumize after isopropyl alcohol;
B, conductive black disperse, and conductive black is uniformly dispersed in dispersant, and dispersant s fills a prescription and is, ethanol by weight: isopropyl alcohol: glycerine=1:1～3:1～3, and the ratio of conductive black and dispersant is 1:15 by weight;
C, stir after the platinum acid chloride solution preparing is in advance mixed with B step gained slurries, add reducing agent, the formula of reducing agent is formaldehyde by weight: sodium formate: ethanol=1:1～3:1～3, and the ratio of chloroplatinic acid and reducing agent is 1:1～3 by weight;
D, by C step gained slurries high-temperature heating in reacting furnace, temperature range be 80～300 degree, be 10min～30min heating time, add the cooling precipitation of precipitation reagent, again repeat D step 2-3 time, after chloroplatinic acid is fully reduced, catalyst is put into vacuum drying chamber 80 degree and dry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410081454.6A CN103872344A (en) | 2014-03-07 | 2014-03-07 | Preparation method of platinum-carbon catalyst for fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410081454.6A CN103872344A (en) | 2014-03-07 | 2014-03-07 | Preparation method of platinum-carbon catalyst for fuel cell |
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| Publication Number | Publication Date |
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| CN103872344A true CN103872344A (en) | 2014-06-18 |
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| CN201410081454.6A Pending CN103872344A (en) | 2014-03-07 | 2014-03-07 | Preparation method of platinum-carbon catalyst for fuel cell |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030224926A1 (en) * | 2002-04-30 | 2003-12-04 | Wei Xing | Method of preparing nano-level platinum/carbon electrocatalyst for cathode of fuel cell |
| CN1512611A (en) * | 2002-12-30 | 2004-07-14 | ����Sdi��ʽ���� | Method for producing fuel cell electrode |
| CN103372429A (en) * | 2013-07-04 | 2013-10-30 | 南京大学昆山创新研究院 | Preparation method of Pt/C (platinum/carbon) catalyst for fuel cell |
-
2014
- 2014-03-07 CN CN201410081454.6A patent/CN103872344A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030224926A1 (en) * | 2002-04-30 | 2003-12-04 | Wei Xing | Method of preparing nano-level platinum/carbon electrocatalyst for cathode of fuel cell |
| CN1512611A (en) * | 2002-12-30 | 2004-07-14 | ����Sdi��ʽ���� | Method for producing fuel cell electrode |
| CN103372429A (en) * | 2013-07-04 | 2013-10-30 | 南京大学昆山创新研究院 | Preparation method of Pt/C (platinum/carbon) catalyst for fuel cell |
Non-Patent Citations (2)
| Title |
|---|
| 李文震，孙公权，严玉山，辛勤: "低温燃料电池担载型贵金属催化剂", 《化学进展》, vol. 17, no. 5, 30 September 2005 (2005-09-30), pages 761 - 772 * |
| 贾荣利,王成扬,王素梅: "炭载体前处理对Pt/C催化剂Pt分散性的影响", 《电源技术》, vol. 29, no. 12, 31 December 2005 (2005-12-31), pages 801 - 804 * |
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Application publication date: 20140618 |