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    Electrode catalyst fine particles, dispersion of the same, and process for producing the dispersion
    2.
    发明授权
    Electrode catalyst fine particles, dispersion of the same, and process for producing the dispersion 失效
    电极催化剂微粒，其分散体，以及分散体的制造方法

    公开(公告)号：US07479469B2

    公开(公告)日：2009-01-20

    申请号：US10966895

    申请日：2004-10-15

    Applicant: Yoichi Ishihara ,  Toshiharu Hirai ,  Michio Komatsu

    Inventor： Yoichi Ishihara ,  Toshiharu Hirai ,  Michio Komatsu

    IPC: B01J21/18 ,  B01J23/40 ,  B01J23/74 ,  B22F1/00 ,  B22F3/00 ,  C22C29/02 ,  C22C29/14 ,  H01M4/00

    CPC classification number: H01M4/9083 ,  B01J21/18 ,  B01J23/40 ,  B01J23/462 ,  B01J35/006 ,  B01J37/348 ,  H01M4/8605 ,  H01M4/90 ,  H01M4/92 ,  H01M4/926 ,  H01M8/1004 ,  Y02P70/56

    Abstract: Provided is a process for producing electrode catalyst fine particles capable of affording formed catalysts such as membranes excellent in uniformity and strength and also employable as catalyst to exhibit high catalytic activity over long periods because fine metal particles are highly distributed on carriers to make particle growth or the like less likely to occur. Electrode catalyst fine particles comprise fine particles which have an average particle diameter of 10 nm to 10 μm and in which fine metal particles are supported on carrier particles, wherein a potential difference (absolute value of (II) minus (I)) between a flow potential (I) of a water dispersion of the fine metal particles at 1 wt % concentration and a pH of 3 to 8 and a flow potential (II) of a water dispersion of the carrier particles at 1 wt % concentration and a pH of 4 to 10, is in the range of 10 to 3000 mV.

    Abstract translation: 提供一种能够提供均匀性和强度优异的成膜催化剂的电极催化剂微粒的制备方法，并且也可用作催化剂，以在长时间内表现出高催化活性，因为金属颗粒高度分布在载体上以使颗粒生长或 似乎不太可能发生。 电极催化剂微粒包含平均粒径为10nm〜10μm的微粒，载体颗粒上负载有金属微粒，其中电流差（（II）减（I）的绝对值） 浓度为1重量％，pH为3〜8的细金属颗粒的水分散体的电位（I）和载体颗粒的水分散体的流动电位（II）为1重量％，pH为4 至10，在10至3000mV的范围内。

    Electrode catalyst fine particles, dispersion of the same, and process for producing the dispersion
    3.
    发明申请
    Electrode catalyst fine particles, dispersion of the same, and process for producing the dispersion 失效
    电极催化剂微粒，其分散体，以及分散体的制造方法

    公开(公告)号：US20050085379A1

    公开(公告)日：2005-04-21

    申请号：US10966895

    申请日：2004-10-15

    Applicant: Yoichi Ishihara ,  Toshiharu Hirai ,  Michio Komatsu

    Inventor： Yoichi Ishihara ,  Toshiharu Hirai ,  Michio Komatsu

    IPC: B01J23/42 ,  B01J21/18 ,  B01J23/40 ,  B01J23/46 ,  B01J37/02 ,  B01J37/34 ,  H01M4/86 ,  H01M4/88 ,  H01M4/90 ,  H01M4/92 ,  H01M8/10

    CPC classification number: H01M4/9083 ,  B01J21/18 ,  B01J23/40 ,  B01J23/462 ,  B01J35/006 ,  B01J37/348 ,  H01M4/8605 ,  H01M4/90 ,  H01M4/92 ,  H01M4/926 ,  H01M8/1004 ,  Y02P70/56

    Abstract: Provided is a process for producing electrode catalyst fine particles capable of affording formed catalysts such as membranes excellent in uniformity and strength and also employable as catalyst to exhibit high catalytic activity over long periods because fine metal particles are highly distributed on carriers to make particle growth or the like less likely to occur. Electrode catalyst fine particles comprise fine particles which have an average particle diameter of 10 nm to 10 μm and in which fine metal particles are supported on carrier particles, wherein a potential difference (absolute value of (II) minus (I)) between a flow potential (I) of a water dispersion of the fine metal particles at 1 wt % concentration and a pH of 3 to 8 and a flow potential (II) of a water dispersion of the carrier particles at 1 wt % concentration and a pH of 4 to 10, is in the range of 10 to 3000 mV.

    Abstract translation: 提供一种能够提供均匀性和强度优异的成膜催化剂的电极催化剂微粒的制备方法，并且也可用作催化剂，以在长时间内表现出高催化活性，因为金属颗粒高度分布在载体上以使颗粒生长或 似乎不太可能发生。 电极催化剂微粒包含平均粒径为10nm〜10μm的微粒，载体颗粒上负载有金属微粒，其中电流差（（II）减（I）的绝对值） 浓度为1重量％，pH为3〜8的细金属颗粒的水分散体的电位（I）和载体颗粒的水分散体的流动电位（II）为1重量％，pH为4 至10，在10至3000mV的范围内。

    Fine metal particles suitable for forming a conductive coating film
    9.
    发明授权
    Fine metal particles suitable for forming a conductive coating film 失效
    适用于形成导电涂膜的精细金属颗粒

    公开(公告)号：US07494710B2

    公开(公告)日：2009-02-24

    申请号：US10473052

    申请日：2002-03-25

    Applicant: Yoichi Ishihara ,  Toshiharu Hirai

    Inventor： Yoichi Ishihara ,  Toshiharu Hirai

    IPC: B32B5/16

    CPC classification number: B22F1/0022 ,  B22F1/0003 ,  B22F1/0018 ,  B22F1/02 ,  B22F9/24 ,  B22F2998/00 ,  B82Y30/00 ,  C09D5/24 ,  C22C32/0015 ,  H01B1/02 ,  H01B1/22 ,  Y10T428/2982 ,  Y10T428/2991 ,  Y10T428/2993 ,  Y10T428/2995 ,  Y10T428/2996

    Abstract: Fine metal particles are provided having surface resistance as low as about 102 to l04 Ω/□, with excellent antistatic properties, anti-reflection properties, and electromagnetic shielding properties, and suitable for use in forming a transparent conductive coating film excellent in reliability and durability, and a process for producing the fine metal particles. The fine metal particles include iron and noniron metal having an average particle diameter in the range of from 1 to 200 nm and an iron content in the range of from 0.1 to 3.0% by weight. The noniron metal preferably is one or more metals selected from the group consisting of Au, Ag, Pd, Pt, Rh, Ru, Cu, Ni, Co, Sn, Ti, In, Al, Ta, and Sb. Part of the surface of the fine metal particles may be in the form of an oxide and/or a hydroxide.

    Abstract translation: 提供的表面电阻低至约102至104欧/□的精细金属颗粒，具有优异的抗静电性能，抗反射性能和电磁屏蔽性能，并且适用于形成可靠性和耐久性优异的透明导电涂膜 ，以及金属微粒的制造方法。 细金属颗粒包括平均粒径在1至200nm范围内且铁含量在0.1至3.0重量％范围内的铁和非铁金属。 非铁金属优选为选自Au，Ag，Pd，Pt，Rh，Ru，Cu，Ni，Co，Sn，Ti，In，Al，Ta和Sb中的一种以上的金属。 细金属颗粒的一部分表面可以是氧化物和/或氢氧化物的形式。

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