WO2008003225A1 - Catalyseur en bouillie et sa méthode de préparation - Google Patents

Catalyseur en bouillie et sa méthode de préparation Download PDF

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Publication number
WO2008003225A1
WO2008003225A1 PCT/CN2007/001915 CN2007001915W WO2008003225A1 WO 2008003225 A1 WO2008003225 A1 WO 2008003225A1 CN 2007001915 W CN2007001915 W CN 2007001915W WO 2008003225 A1 WO2008003225 A1 WO 2008003225A1
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WO
WIPO (PCT)
Prior art keywords
acid
catalyst slurry
resin
weight
polymer
Prior art date
Application number
PCT/CN2007/001915
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English (en)
Chinese (zh)
Inventor
Binglun Tian
Original Assignee
Binglun Tian
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Binglun Tian filed Critical Binglun Tian
Publication of WO2008003225A1 publication Critical patent/WO2008003225A1/fr

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Classifications

    • 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
    • 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
    • H01M4/8605—Porous electrodes
    • 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

Definitions

  • the present invention relates to a catalyst and a process for the preparation thereof, and more particularly to a catalyst paddle and a method of preparing the same. Background technique
  • the catalyst coating on the fuel cell membrane electrode is prepared by dispersing a solid particulate catalyst in a solvent to prepare a catalyst slurry, applying the slurry to a proton exchange membrane, and then drying the film into a film.
  • the performance of the catalyst slurry directly affects the performance of the membrane electrode produced, and ultimately affects the power generation performance of the fuel cell.
  • a catalyst slurry is given in the European patent EP 0 955 687 A2, mainly by adding an aqueous solution of Nafion alcohol produced by Dupont, USA, to MOH, a solution of H+ form Nafion to M+, and then using a high boiling polar solvent to produce Dupont.
  • the Nafion alcohol aqueous solution was evaporated and replaced, then a catalyst was added, stirred to form a slurry, dried on a diffusion layer to form a catalyst layer, and then placed in an acid to convert Na+ of Nafion to H+. It can be seen that the electrode fabrication process is very complicated.
  • a catalyst slurry is given in PCT/US2003/033133, the first solvent in the slurry being water and the second solvent being a polar aprotic solvent such as hydrazine, hydrazine, hydrazine-dimethylformamide, hydrazine, hydrazine.
  • a polar aprotic solvent such as hydrazine, hydrazine, hydrazine-dimethylformamide, hydrazine, hydrazine.
  • High boiling point solvents such as dimethylacetamide, DMSO, and acetonitrile.
  • the solvent for preparing the catalyst slurry includes water and an organic solvent such as an alcohol, an ether, an ester, a ketone, and a high-boiling hydrazine, hydrazine, hydrazine-dimethylformamide, N,N-dimethylacetamide, DMSO, Acetonitrile and the like.
  • an organic solvent such as an alcohol, an ether, an ester, a ketone, and a high-boiling hydrazine, hydrazine, hydrazine-dimethylformamide, N,N-dimethylacetamide, DMSO, Acetonitrile and the like.
  • the solid polymer proton conductor for the preparation of the catalyst slurry such as Nafion manufactured by Dupont, is generally dissolved in a solution of water and alcohol. If the catalyst is separately added to the solution for stirring and mixing, the catalyst and Nafion in the prepared catalyst slurry cannot be effectively dispersed and combined, which affects the direct application of the catalyst to the CCM fuel cell member, thereby affecting the electrode performance of the battery.
  • An object of the present invention is to provide a catalyst paddle and a method of preparing the same in order to solve the above problems.
  • the object of the present invention is achieved by a catalyst slurry comprising solid catalyst particles of 1 to 40% by weight, a polymer polymer proton conductor of 1 to 40% by weight, a water of 0.1 to 50% by weight, and an alcohol of 1 to 50% by weight. In addition, it also contains organic acid l ⁇ 90%wt.
  • the solid catalyst particles are solid catalyst particles containing platinum.
  • the high molecular polymer proton conductor is selected from the group consisting of a perfluorosulfonic acid resin, a sulfonated trifluorostyrene resin, a polymethylphenylsulfonic acid silicone resin, a sulfonated polyetheretherketone resin, and a sulfonated polystyrene.
  • a perfluorosulfonic acid resin a sulfonated trifluorostyrene resin
  • a polymethylphenylsulfonic acid silicone resin a sulfonated polyetheretherketone resin
  • a sulfonated polystyrene Polyethylene copolymer resin and sulfonated polystyrene-polyethylene/butene-polystyrene resin.
  • the organic acid is selected from one or more of a -COOH group-containing or -S0 3 H group-containing organic acid.
  • the organic acid containing a -COOH group includes formic acid, acetic acid, acrylic acid, succinic acid, oxalic acid, malic acid, EDTA.
  • the alcohol is one or more selected from the group consisting of methanol, ethanol, ethylene glycol, propanol, isopropanol, and glycerin.
  • a method for preparing a catalyst slurry wherein the solid catalyst particles are 1 to 40% by weight, the polymer polymer proton conductor is 1 to 40% by weight, the organic acid is 1 to 90% by weight, the water is 0.1 to 50% by weight, and the alcohol is 1 to 50.
  • %wt is the basic material and is prepared by the following steps:
  • the polymer polymer proton conductor is mixed with 1 to 40% by weight, 0.1 to 50% by weight of water and 1 to 50% by weight of alcohol, placed in an autoclave, sealed, heated, and continuously stirred for 3 hours, and then cooled to be high. a dispersion of molecular polymer proton conductors;
  • the solid catalyst particles 1 to 40% by weight, the organic acid 1 to 90% by weight, and the dispersion of the polymer-polymeric substance sub-conductor obtained in the step a were mixed together and shaken by ultrasonic waves to prepare a catalyst slurry.
  • the solid catalyst particles are platinum-containing solid catalyst particles; the polymer polymer proton conductor is selected from the group consisting of a perfluorosulfonic acid resin, a sulfonated trifluorostyrene resin, and a polymethylphenylsulfonate silicone resin.
  • the organic acid is selected from a -COOH group or Contains - S0 3 H
  • the organic acids is selected from one or more of methanol, ethanol, ethylene glycol, propanol, isopropanol, and glycerin.
  • the organic acid containing a -COOH group includes formic acid, acetic acid, propionic acid, succinic acid, oxalic acid, malic acid, EDTA.
  • the invention provides an effective formula of a fuel cell catalyst slurry, which is not only easy to prepare, simple, saves time and labor, environmental pollution is relatively small, and the prepared electrode has better performance.
  • the sulfonated trifluorostyrene resin lg, water 3g and 1-propanol 6g are mixed, placed in an autoclave, sealed, heated, and continuously stirred for 3 hours, and then cooled to obtain a dispersion of the polymer polymer proton conductor; Together with ultrasonic vibration, a dispersion of a polymer proton conductor is prepared; and HP 40°/ produced by O. lg E-TEK.
  • Pt/C 3 g of oxalic acid was added, ultrasonically shaken for 5 min, 0.6 g of the above dispersion was added, ultrasonically shaken for 5 min, and stirring was continued. Namely, a catalyst slurry of the present invention is obtained.
  • the catalyst slurry obtained in Example 1 was numbered 1, and the catalyst slurry obtained in the comparative test was numbered 2, which were used to prepare electrodes, respectively.
  • the specific operation was as follows - taking Nafion 211 produced by DUPONT Co., Ltd., and cutting 70 x 70 mm of two
  • the film one of the films is taken, and the above-mentioned catalyst slurry No. 1 is sprayed on both sides of the film by a spray gun. During the spraying process, the solvent in the catalyst slurry is quickly evaporated and dried by using 130 to 150 Torr of hot air.
  • Another film was taken, and the above-mentioned catalyst slurry No. 2 was sprayed onto both sides of the film by a paint pen.
  • the above electrodes were placed in a fuel cell electrode holder for testing, wherein the test conditions were as follows: Battery operating temperature: 60 ° C; H 2 : 80 RH%, metering ratio 1.1; Air: 50 RH%, metering ratio 3.5; Hydrogen and air
  • the outlet pressure is atmospheric pressure.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Catalysts (AREA)
  • Inert Electrodes (AREA)

Abstract

L'invention concerne un catalyseur en bouillie, qui comprend: 1 à 40 % en poids d'un catalyseur particulaire solide; 1 à 40 % en poids d'un conducteur de protons en polymère de haute densité moléculaire; 0,1 à 50% en poids d'eau et 1 à 50 % en poids d'éthanol, ainsi que 1 à 90 % en poids d'acide organique. L'invention concerne une méthode de préparation, qui consiste à préparer la dispersion liquide du conducteur de protons en polymère de haute densité moléculaire, et à préparer le catalyseur en bouillie, etc. La propriété de l'électrode préparée par le catalyseur en bouillie selon la technique de l'invention est supérieure à celle de l'électrode préparée par le catalyseur en bouillie selon la technique actuelle. De plus, la préparation du catalyseur en bouillie selon la technique de l'invention est pratique pour un coût et une consommation d'énergie réduits.
PCT/CN2007/001915 2006-06-27 2007-06-18 Catalyseur en bouillie et sa méthode de préparation WO2008003225A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610028206.0 2006-06-27
CNA2006100282060A CN101098007A (zh) 2006-06-27 2006-06-27 用于制作燃料电池膜电极的催化剂浆料及其制备方法

Publications (1)

Publication Number Publication Date
WO2008003225A1 true WO2008003225A1 (fr) 2008-01-10

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Application Number Title Priority Date Filing Date
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Country Status (2)

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CN (1) CN101098007A (fr)
WO (1) WO2008003225A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015084538A (ja) * 2007-08-13 2015-04-30 オプティス ワイヤレス テクノロジー エルエルシー 無線通信装置及び信号拡散方法
CN114808000A (zh) * 2022-04-01 2022-07-29 上海升水新能源科技有限公司 一种高效稳定的pem电解水阳极催化层的构筑方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102255085B (zh) * 2010-05-19 2013-11-20 中国科学院大连化学物理研究所 一种制备燃料电池催化膜电极用的催化剂浆料及其制备
CN103165913A (zh) * 2011-12-14 2013-06-19 中国科学院大连化学物理研究所 用于燃料电池膜电极催化剂层制备的浆料及其制备
CN102709570B (zh) * 2012-06-13 2014-08-13 上海空间电源研究所 一种燃料电池催化剂浆料及其制备方法
JP6295993B2 (ja) 2015-04-13 2018-03-20 トヨタ自動車株式会社 燃料電池用電極の製造方法
CN106654309A (zh) * 2016-11-25 2017-05-10 清华大学 一种燃料电池膜电极催化剂浆料的制备方法
CN108579818B (zh) * 2018-04-02 2021-03-16 武汉理工大学 固体聚合物电解质水电解膜电极催化剂浆料的制备方法
CN110729494A (zh) * 2019-10-30 2020-01-24 无锡威孚高科技集团股份有限公司 一种用于质子交换膜燃料电池的催化剂浆料及其制备方法
CN114388820A (zh) * 2021-12-09 2022-04-22 同济大学 一种燃料电池用催化剂浆料及其制备方法

Citations (3)

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Publication number Priority date Publication date Assignee Title
JP2005302473A (ja) * 2004-04-09 2005-10-27 Toyota Motor Corp 粉体状触媒物質とその製造方法およびそれを用いた固体高分子型燃料電池電極
JP2006080083A (ja) * 2004-09-08 2006-03-23 Samsung Sdi Co Ltd 燃料電池用電極，膜−電極アセンブリ，及び燃料電池システム
CN1778011A (zh) * 2002-12-10 2006-05-24 3M创新有限公司 催化剂浆料

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1778011A (zh) * 2002-12-10 2006-05-24 3M创新有限公司 催化剂浆料
JP2005302473A (ja) * 2004-04-09 2005-10-27 Toyota Motor Corp 粉体状触媒物質とその製造方法およびそれを用いた固体高分子型燃料電池電極
JP2006080083A (ja) * 2004-09-08 2006-03-23 Samsung Sdi Co Ltd 燃料電池用電極，膜−電極アセンブリ，及び燃料電池システム

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015084538A (ja) * 2007-08-13 2015-04-30 オプティス ワイヤレス テクノロジー エルエルシー 無線通信装置及び信号拡散方法
CN114808000A (zh) * 2022-04-01 2022-07-29 上海升水新能源科技有限公司 一种高效稳定的pem电解水阳极催化层的构筑方法

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