CN106450360A - Platinum catalyst embedded carbon nano tube flexible film used for hydrogen fuel cell - Google Patents

Platinum catalyst embedded carbon nano tube flexible film used for hydrogen fuel cell Download PDF

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Publication number
CN106450360A
CN106450360A CN201610986917.2A CN201610986917A CN106450360A CN 106450360 A CN106450360 A CN 106450360A CN 201610986917 A CN201610986917 A CN 201610986917A CN 106450360 A CN106450360 A CN 106450360A
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CN
China
Prior art keywords
carbon nano
nano tube
fuel cell
deionized water
flexible film
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
Application number
CN201610986917.2A
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Chinese (zh)
Inventor
孙晓刚
邱志文
蔡满园
陈珑
刘珍红
王杰
陈玮
李旭
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Nanchang University
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Nanchang University
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Publication date
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Priority to CN201610986917.2A priority Critical patent/CN106450360A/en
Publication of CN106450360A publication Critical patent/CN106450360A/en
Pending legal-status Critical Current

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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
    • 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
    • H01M4/8803—Supports for the deposition of the catalytic active composition
    • H01M4/8814—Temporary supports, e.g. decal
    • 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
    • H01M4/8828—Coating with slurry or ink
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Catalysts (AREA)
  • Inert Electrodes (AREA)

Abstract

Provided is a platinum catalyst embedded carbon nano tube flexible film used for hydrogen fuel cell. A preparing method of the carbon nano tube flexible film comprises the steps of mixing H2SO4 and HNO3 according to a volume ratio of 1 : 3, adding the carbon nano tube into the mixture to conduct ultrasonic processing, adding deionized water into the mixture to conduct attenuation until pH is 6-8, and conducting filtering and drying on the mixture; conducting ball-milling on the carbon nano tube, adding the carbon nano tube into the deionized water or a NMP solvent, then adding dispersing agent into the deionized water or the NMP solvent, and conducting high-speed shearing to obtain carbon nano tube dispersion liquid; adding an aqueous solution of a platinum halide compound into the carbon anno dispersion liquid, and conducting ultrasonic concussion to obtain dispersion paste; adding sodium borohydride into the dispersion paste to conduct revivification; smearing the paste on aluminum foil, and adopting a bubbling method to strip the film. According to the platinum catalyst embedded carbon nano tube flexible film used for hydrogen fuel cell, the catalyst is adsorbed on the surface of the carbon nano tube and is distributed uniformly in the carbon nano tube thin film, an effect of three-dimensional distribution is achieved, and efficacy of the catalyst is improved; high conductivity and heat-conducting properties of the carbon nano tube are beneficial to transfer of an electron and spread of heat. Excellent corrosion resistance of the carbon nano tube is beneficial to prolonging the service life of the fuel cell.

Description

A kind of carbon nano tube flexible film for being embedded with platinum catalyst for hydrogen fuel cell
Technical field
The invention belongs to fuel cell field, is related to a kind of preparation method of hydrogen fuel cell catalyst.
Background technology
Fuel cell is the device that a kind of chemical reaction by fuel and oxygen can be converted into electric energy by electrode reaction.Knot Structure is simple, and product is water, there is no pollution, is a kind of new forms of energy of sustainable development, has weight in national defence, Aeronautics and Astronautics etc. The value that wants.In Proton Exchange Membrane Fuel Cells（PEMFC）And DMFC（DMFC）In, generally use pallium-on-carbon （Pt/C）.And CNT is used as the carrier of new catalyst, with good chemical stability, with high temperature resistant, at 500 DEG C Hereinafter not aoxidizing, preservation that in acid condition can be good, CNT is used as catalyst carrier, can carry significantly The life-span of high catalyst, while CNT also has excellent performance in hydrogen storage.
Content of the invention
The present invention is provided and a kind of is embedded with platinum for hydrogen fuel cell（Pt）The carbon nano tube flexible thin film of catalyst.Carbon is received Mitron diameter 30-150nm, length 3-15 μm, specific surface area 20-50m2/g.It is characteristic of the invention that Pt granule is uniformly embedded in In carbon nano tube flexible film.
The present invention is achieved by the following technical solutions.
A kind of carbon nano tube flexible film for being embedded with platinum catalyst for hydrogen fuel cell of the present invention, including following Step.
（1）Functionalization：By concentration for 6mol/L H2SO4With concentration for 6mol/L HNO3According to volume ratio 1:3 systems Become mixed liquor, CNT supersound process 1-6h is added, add deionized water that pH6-8 is diluted to, filter, do at 40-90 DEG C Dry.
（2）CNT disperses：By treated CNT ball milling 1-3h, deionized water or N- methyl is added to Ketopyrrolidine（NMP）In solvent, dispersant, high speed shear 1-5h, prepared carbon nano tube dispersion liquid is added.
（3）The aqueous solution of addition platium halogen compound, ultrasonic vibration, obtain dispersed paste.
（4）Sodium borohydride reduction agent is added to be reduced.
（5）The slurry of preparation is coated on aluminium foil, then by Bubbling method, the film on aluminium foil is peeled, that is, be embedded with The carbon nano tube flexible thin film (Pt/CNTs) of metal platinum particles.
Dispersant of the present invention is detergent alkylate sulphur sodium（SDBS）, sodium lauryl sulphate (SDS), One or more in TritionX-100 or Tween-20.
Platium halogen compound of the present invention is chloroplatinic acid or platinum tetrachloride.
It is an advantage of the current invention that Catalyst Adsorption is in carbon nano tube surface, and is uniformly distributed in carbon nano-tube film, With distributed in three dimensions effect, this is conducive to improving the efficiency of catalyst, while CNT has high conduction and heat conductivility, This is conducive to the migration of electronics and the diffusion of heat.CNT also has excellent corrosion resistance, and this is conducive to improving fuel The life-span of battery.
Specific embodiment
With reference to further instruction of the example to the present invention, but the scope of protection of present invention is not limited to Example.
Embodiment 1.
By 6mol/LH2SO4With 6mol/LHNO3According to volume ratio 1:3 make mixed liquor, add CNT supersound process 2h, adds deionized water to be diluted to pH7, filters, dry at 60 DEG C.
By treated CNT ball milling 2h, with mass ratio as CNT：Deionized water：SDS=96%：2.5%： 1.5%, prepare slurry, add the aqueous solution of chloroplatinic acid, ultrasonic 1h, add sodium borohydride to be reduced, at 80 DEG C, 2h stirred, Obtain dispersed paste.
Dispersed paste is coated on aluminium foil, by Bubbling method, the Pt/CNTs catalyst film for preparing is shelled from aluminium foil Under, obtain being embedded with the Pt/CNTs thin film of metal platinum particles.
Embodiment 2.
By 6mol/LH2SO4With 6mol/LHNO3According to volume ratio 1:3 make mixed liquor, add CNT supersound process 3h, adds deionized water to be diluted to pH6.8, filters, dry at 60 DEG C.
By treated CNT ball milling 2h, with mass ratio as deionized water：CNT：SDS=94.5%：4%： 1.5%, prepare slurry, add the aqueous solution of chloroplatinic acid, ultrasonic 1h, add sodium borohydride to be reduced, at 80 DEG C, 2h stirred, Obtain dispersed paste.
Dispersed paste is coated on aluminium foil, by Bubbling method, the Pt/CNTs catalyst film for preparing is shelled from aluminium foil Under, obtain being embedded with the Pt/CNTs thin film of metal platinum particles.

Claims (1)

1. a kind of carbon nano tube flexible film for being embedded with platinum catalyst for hydrogen fuel cell, is characterized in that comprising the following steps：
（1）By concentration for 6mol/L H2SO4With concentration for 6mol/L HNO3According to volume ratio 1:3 make mixed liquor, add carbon Nanotube supersound process 1-6h, adds deionized water to be diluted to pH6-8, filters, dry at 40-90 DEG C；
（2）Treated CNT ball milling 1-3h is added in deionized water or N-Methyl pyrrolidone solvent, then Add dispersant, high speed shear 1-5h, prepared carbon nano tube dispersion liquid；
（3）The aqueous solution of addition platium halogen compound, ultrasonic vibration, obtain dispersed paste；
（4）Sodium borohydride reduction agent is added to be reduced；
（5）The slurry of preparation is coated on aluminium foil, then by Bubbling method, the film on aluminium foil is peeled, that is, obtain being embedded with metal The carbon nano tube flexible thin film of platinum grain；
Described dispersant is detergent alkylate sulphur sodium, sodium lauryl sulphate, in TritionX-100 or Tween-20 one Plant or two or more；
Described platium halogen compound is chloroplatinic acid or platinum tetrachloride.
CN201610986917.2A 2016-11-10 2016-11-10 Platinum catalyst embedded carbon nano tube flexible film used for hydrogen fuel cell Pending CN106450360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610986917.2A CN106450360A (en) 2016-11-10 2016-11-10 Platinum catalyst embedded carbon nano tube flexible film used for hydrogen fuel cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610986917.2A CN106450360A (en) 2016-11-10 2016-11-10 Platinum catalyst embedded carbon nano tube flexible film used for hydrogen fuel cell

Publications (1)

Publication Number Publication Date
CN106450360A true CN106450360A (en) 2017-02-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109888301A (en) * 2019-03-05 2019-06-14 大连交通大学 A method of quickly preparing carbon nanotube loaded Pt nanowires catalyst
CN113140743A (en) * 2021-03-08 2021-07-20 昆明贵研新材料科技有限公司 Preparation method of high-load platinum-carbon catalyst for fuel cell

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1404179A (en) * 2002-09-28 2003-03-19 中国科学院上海微系统与信息技术研究所 Electric Pt-multiple wall carbon nanotube catalyst and its prepn
US20110171531A1 (en) * 2009-09-08 2011-07-14 Northwestern University Multifunctional Nanocomposites of Carbon Nanotubes and Nanoparticles Formed Via Vacuum Filtration
CN105555708A (en) * 2013-09-30 2016-05-04 日本瑞翁株式会社 Carbon nanotubes, dispersion liquid thereof, carbon nanotube-containing film and composition material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1404179A (en) * 2002-09-28 2003-03-19 中国科学院上海微系统与信息技术研究所 Electric Pt-multiple wall carbon nanotube catalyst and its prepn
US20110171531A1 (en) * 2009-09-08 2011-07-14 Northwestern University Multifunctional Nanocomposites of Carbon Nanotubes and Nanoparticles Formed Via Vacuum Filtration
CN105555708A (en) * 2013-09-30 2016-05-04 日本瑞翁株式会社 Carbon nanotubes, dispersion liquid thereof, carbon nanotube-containing film and composition material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
朱红 等: "质子交换膜燃料电池用碳纳米管载铂催化剂的研究", 《电化学》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109888301A (en) * 2019-03-05 2019-06-14 大连交通大学 A method of quickly preparing carbon nanotube loaded Pt nanowires catalyst
CN113140743A (en) * 2021-03-08 2021-07-20 昆明贵研新材料科技有限公司 Preparation method of high-load platinum-carbon catalyst for fuel cell

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Application publication date: 20170222

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