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103 条记录 (耗时 0.021 秒)

    Electrode catalyst for fuel cell and process for producing the same
    71.
    发明申请
    Electrode catalyst for fuel cell and process for producing the same 有权
    燃料电池用电极催化剂及其制造方法

    公开(公告)号：US20030054227A1

    公开(公告)日：2003-03-20

    申请号：US10228338

    申请日：2002-08-27

    申请人： Toyota Jidosha Kabushiki Kaisha

    发明人： Kazutaka Hiroshima ,  Takahiko Asaoka ,  Yutaka Ohya ,  Tatsuo Noritake ,  Hisao Kato ,  Tetsuo Nagami

    IPC分类号： H01M004/88 ,  H01M004/92

    CPC分类号： H01M4/921 ,  H01M4/926

    摘要： An electrode catalyst for a fuel cell includes a conductive support, and catalytic particles loaded on the conductive support. The catalytic particles include platinum and a base metal being on the lower end of the electrochemical series with respect to platinum. The number of the atoms of the base metal, forming metallic oxides without alloying with the platinum, is less than 5 atomic % of the number of the atoms of the platinum on a surface of the catalytic particles. The electrode catalyst is produced by loading the platinum and base metal on the conductive support, alloying the platinum and base metal thereon by a heat treatment, thereby making the catalytic particles, and removing metallic oxides from a surface of the catalytic particles. The electrode catalyst is less expensive comparatively, exhibits high catalytic activities, and hardly lowers the battery performance of fuel cells.

    摘要翻译： 用于燃料电池的电极催化剂包括导电载体和负载在导电载体上的催化颗粒。 催化剂颗粒包括相对于铂的铂和贱金属在电化学系列的下端。 形成不与铂合金化的金属氧化物的贱金属的原子数小于催化剂颗粒表面铂原子数的5原子％。 通过将铂和贱金属负载在导电性载体上，通过热处理将铂和贱金属合金化，由此制造催化剂颗粒，并从催化剂颗粒的表面去除金属氧化物，制备电极催化剂。 电极催化剂比较便宜，催化活性高，几乎不降低燃料电池的电池性能。

    Proton-conductive electrode, process for producing the same, and electrochemical device
    73.
    发明申请
    Proton-conductive electrode, process for producing the same, and electrochemical device 失效
    质子导电电极，其制造方法和电化学装置

    公开(公告)号：US20030013003A1

    公开(公告)日：2003-01-16

    申请号：US10110277

    申请日：2002-08-02

    发明人： Koichiro Hinokuma ,  Minehisa Imazato

    IPC分类号： H01M004/96 ,  H01M004/92 ,  H01M008/10

    CPC分类号： B82Y30/00 ,  H01B1/04 ,  H01B1/122 ,  H01M4/86 ,  H01M4/8605 ,  H01M4/8652 ,  H01M4/8828 ,  H01M4/96

    摘要： A proton conducting electrode useful for a fuel battery. The proton conducting electrode is comprised of a mixture including a fullerene derivative and an electron conducting catalyst, wherein the fullerene derivative is composed of carbon atoms forming fullerene molecules and a proton (Hnull) dissociating group introduced into said carbon atoms. This proton conducting electrode is manufactured by coating mixture containing the fullerene derivative and the electron conducting catalyst on a gas transmitting current collector.

    摘要翻译： 用于燃料电池的质子传导电极。 质子传导电极由包含富勒烯衍生物和电子传导催化剂的混合物组成，其中富勒烯衍生物由形成富勒烯分子的碳原子和引入所述碳原子的质子（H +）离解基团组成。 该质子传导电极通过将含有富勒烯衍生物和电子传导催化剂的混合物涂布在气体传输集电体上来制造。

    CLASS OF ELECTROCATALYSTS AND A GAS DIFFUSION ELECTRODE BASED THEREON FOR FUEL CELLS
    75.
    发明申请
    CLASS OF ELECTROCATALYSTS AND A GAS DIFFUSION ELECTRODE BASED THEREON FOR FUEL CELLS 失效
    电动汽油机类及其燃料电池用气体扩散电极

    公开(公告)号：US20020132157A1

    公开(公告)日：2002-09-19

    申请号：US09759231

    申请日：2001-01-16

    申请人： MEDIS-EL LTD

    发明人： Gennadi Finkelshtain ,  Yuri Katzman ,  Mikhail Khidekel

    IPC分类号： H01M004/90 ,  H01M008/10 ,  H01M004/92

    CPC分类号： H01B1/124 ,  B01J23/40 ,  B01J31/1691 ,  B01J31/1805 ,  B01J2531/828 ,  H01M4/8605 ,  H01M4/8807 ,  H01M4/8821 ,  H01M4/8835 ,  H01M4/8882 ,  H01M4/90 ,  H01M4/9008 ,  H01M4/92 ,  H01M4/923 ,  H01M8/1004 ,  H01M8/1009 ,  Y10T29/49215 ,  Y10T29/49224

    摘要： An electrocatalyst based on a highly electroconducting polymer and a transition metal, in which transition metal atoms are covalently bonded to heteroatoms of the backbone monomers of the polymer. The covalently bonded transition metal atoms are nucleation sites for catalytically active transition metal particles. The complex is prepared by complexing a highly electroconducting polymer with transition metal coordination ions and then reducing the transition metal ions to neutral atoms. An electrode for a fuel cell is made by impregnating an electrically conducting sheet with the catalytic complex and drying the impregnated sheet. The scope of the present invention includes such electrodes and the fuel cells that incorporate these electrodes.

    摘要翻译： 基于高导电聚合物和过渡金属的电催化剂，其中过渡金属原子与聚合物的主链单体的杂原子共价键合。 共价键合的过渡金属原子是催化活性过渡金属颗粒的成核位点。 通过将高导电聚合物与过渡金属配位离子络合，然后将过渡金属离子还原成中性原子来制备络合物。 通过用导电配合物浸渍导电片材并干燥浸渍的片材来制造燃料电池用电极。 本发明的范围包括这样的电极和包含这些电极的燃料电池。

    Fuel cell anode configuration for CO tolerance
    76.
    发明申请
    Fuel cell anode configuration for CO tolerance 失效
    燃料电池阳极配置为CO容限

    公开(公告)号：US20020119363A1

    公开(公告)日：2002-08-29

    申请号：US09848823

    申请日：2001-05-03

    发明人： Francisco A. Uribe ,  Thomas A. Zawodzinski

    IPC分类号： H01M004/90 ,  H01M004/92 ,  H01M008/10

    CPC分类号： H01M4/926 ,  B01J21/18 ,  B01J23/72 ,  H01M4/8605 ,  H01M4/881 ,  H01M4/90 ,  H01M4/92 ,  H01M4/921 ,  H01M8/1004 ,  H01M2004/8684 ,  H01M2300/0082

    摘要： A polymer electrolyte fuel cell (PEFC) is designed to operate on a reformate fuel stream containing oxygen and diluted hydrogen fuel with CO impurities. A polymer electrolyte membrane has an electrocatalytic surface formed from an electrocatalyst mixed with the polymer and bonded on an anode side of the membrane. An anode backing is formed of a porous electrically conductive material and has a first surface abutting the electrocatalytic surface and a second surface facing away from the membrane. The second surface has an oxidation catalyst layer effective to catalyze the oxidation of CO by oxygen present in the fuel stream where at least the layer of oxidation catalyst is formed of a non-precious metal oxidation catalyst selected from the group consisting of Cu, Fe, Co, Tb, W, Mo, Sn, and oxides thereof, and other metals having at least two low oxidation states.

    摘要翻译： 聚合物电解质燃料电池（PEFC）设计用于在含有CO和稀释的氢燃料与CO杂质的重整燃料流上运行。 聚合物电解质膜具有由与聚合物混合并结合在膜的阳极侧上的电催化剂形成的电催化剂表面。 阳极背衬由多孔导电材料形成，并且具有邻接电催化表面的第一表面和背离膜的第二表面。 第二表面具有氧化催化剂层，其有效地催化存在于燃料流中的氧的CO氧化，其中氧化催化剂层至少由非贵金属氧化催化剂形成，所述非贵金属氧化催化剂选自Cu，Fe， Co，Tb，W，Mo，Sn及其氧化物，以及具有至少两种低氧化态的其它金属。

    Electrodes for fuel cell and processes for producing the same
    78.
    发明申请
    Electrodes for fuel cell and processes for producing the same 有权
    燃料电池用电极及其制造方法

    公开(公告)号：US20020015878A1

    公开(公告)日：2002-02-07

    申请号：US09907937

    申请日：2001-07-19

    申请人： JAPAN STORAGE BATTERY CO., LTD.

    发明人： Naohiro Tsumura ,  Shuji Hitomi ,  Hideo Yasuda

    IPC分类号： H01M004/90 ,  H01M004/92 ,  H01M004/88

    CPC分类号： H01M4/921 ,  H01M4/885 ,  H01M4/90 ,  H01M8/1004

    摘要： An electrode for a fuel cell of the invention comprises a cation-exchange resin, carbon particles and a catalyst metal which is amorphous. The electrode has high activity, a high catalyst utilization and high CO tolerance and is highly active in the electrochemical oxidation reaction of methanol. Furthermore these qualities of the electrode were extremely improved when the catalyst metal was loaded mainly on sites where the surface of the carbon particles contacts proton-conductive passages in the cation-exchange resin. Consequently, a fuel cell with the electrode of the invention has a high output current and a long life, and can be produced at low cost.

    摘要翻译： 本发明的燃料电池用电极包括阳离子交换树脂，碳粒子和无定形的催化剂金属。 电极活性高，催化剂利用率高，CO耐受性高，在甲醇的电化学氧化反应中具有很高的活性。 此外，当催化剂金属主要在碳粒子的表面与阳离子交换树脂中的质子传导通道接触的位置上加载时，电极的这些质量极大地改善。 因此，具有本发明的电极的燃料电池具有高输出电流和长寿命，并且可以低成本地制造。

    Catalyst powder, catalyst electrode, and eletrochemical device
    79.
    发明申请
    Catalyst powder, catalyst electrode, and eletrochemical device 失效
    催化剂粉末，催化剂电极和电化学装置

    公开(公告)号：US20040265678A1

    公开(公告)日：2004-12-30

    申请号：US10819871

    申请日：2004-04-07

    发明人： Hayato Hommura ,  Kenji Katori

    IPC分类号： H01M004/86 ,  H01M004/92

    CPC分类号： H01M4/92 ,  H01M4/8807 ,  H01M4/8821 ,  H01M4/8882 ,  H01M4/926 ,  H01M8/1004

    摘要： Disclosed is a catalyst powder contained in an electrode, wherein the catalyst powder includes a catalytic substance supported on a conductive powder, the catalytic substance being comprised of at least a catalyst, the weight ratio of the catalytic substance to the catalyst powder is in the range of 55 to 75 wt %, and the areal density of the catalytic substance is in the range of 1 to 3 mg/cm2. Also disclosed is a catalyst electrode including a catalyst powder and a solid polymer electrolyte, the catalyst powder including a catalytic substance supported on a conductive powder, the catalytic substance being comprised of at least a catalyst, wherein the weight ratio of the catalytic substance to the catalyst powder is in the range of 55 to 75 wt %, and the areal density of the catalytic substance in the catalyst powder is in the range of 1 to 3 mg/cm2. Further disclosed is an electrochemical device including a plurality of electrodes, and an ionic conductor sandwiched between the electrodes, wherein the above-mentioned catalyst electrode constitutes at least one of the plurality of electrodes.

    摘要翻译： 公开了一种电极中含有的催化剂粉末，其中催化剂粉末包括负载在导电粉末上的催化物质，催化物质至少由催化剂组成，催化剂物质与催化剂粉末的重量比在该范围内 为55〜75重量％，催化剂物质的面密度为1〜3mg / cm 2。 还公开了一种催化剂电极，其包括催化剂粉末和固体聚合物电解质，所述催化剂粉末包括负载在导电粉末上的催化物质，所述催化物质至少由催化剂组成，其中所述催化剂物质与所述催化剂物质的重量比 催化剂粉末的含量范围为55〜75重量％，催化剂粉末中的催化剂的面密度为1〜3mg / cm 2。 还公开了包括多个电极和夹在电极之间的离子导体的电化学装置，其中上述催化剂电极构成多个电极中的至少一个。