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    2.
    发明专利
    未知

    公开(公告)号：DE19825793C1

    公开(公告)日：2000-01-05

    申请号：DE19825793

    申请日：1998-06-10

    Applicant: DEGUSSA

    Inventor： BATZ-SOHN CHRISTOPH ,  KARCH RALF ,  SEEBALD STEFFEN ,  PRINZ MATTHIAS

    IPC: B01J31/22 ,  C07B61/00 ,  C07F7/08 ,  C07F7/12 ,  C07F7/14 ,  C07F7/18

    Abstract: Preparation of 3-functionalized propylsilanes (I) comprises addition of allyl compounds (II) to silanes (III) at 0-200 degrees C and 800 mbar to 6 bar in the presence of a platinum catalyst that has ligand(s) containing sulfur. Preparation of 3-functionalized propylsilanes (I) comprises addition of allyl compounds of formula (II) to silanes of formula (III) at 0-200 degrees C and 800 mbar to 6 bar in the presence of a platinum (Pt) catalyst (IV) that has ligand(s) containing sulfur: X = chlorine (Cl), bromine (Br), iodine (I), fluorine (F), cyano (CN), thiocyanato (SCN), mercapto (SH), organylthio (SR), hydroxyl (OH), amino (NRR ) or organyloxy (OR); R, R = 1-6 carbon (C) alkyl or 3-7 C aryl; R , R , R = hydrogen (H), halogen, 1- C (halo)alkyl, 3-6 C allyl, 1-4 C alkoxy, phenyl, aryl or aralkyl. An Independent claim is also included for the use of (IV) in this addition reaction.

    5.
    发明专利
    未知

    公开(公告)号：BR9903868A

    公开(公告)日：2000-09-12

    申请号：BR9903868

    申请日：1999-08-20

    Applicant: DEGUSSA

    Inventor： ZUBER RALF ,  KARCH RALF ,  FEHL KNUT ,  STARZ KARL-ANTON

    IPC: H01M4/86 ,  H01M4/88 ,  H01M4/90 ,  H01M4/92 ,  H01M8/10 ,  H01M8/1004

    Abstract: A catalytic ink comprises a dispersion of carbon particles and an organic noble metal complex in a solution of ionomer. A catalytic layer (I) on a substrate material (II) containing a proton conducting polymer (ionomer), electrically conductive carbon particles and fine particles of at least a noble metal is prepared by coating the substrate material with an ink (III). The ink (III) comprises a dispersion of carbon particles and at least on organic noble metal complex in a solution of the ionomer. The coating is dried such that the ionomer and substrate are not damaged and the complex is decomposed to form finely divided noble metal particles in an oxidation state of 0. Independent claims are included for: (i) The ink (III); (ii) a process for the production of (I) on (II) by application of (III); and (iii) drying a gas diffusion electrode for a polymer electrolyte fuel cell whereby the substrate (II) is a gas distribution structure.

    7.
    发明专利
    未知

    公开(公告)号：DE19837669A1

    公开(公告)日：2000-03-09

    申请号：DE19837669

    申请日：1998-08-20

    Applicant: DEGUSSA

    Inventor： ZUBER RALF ,  KARCH RALF ,  FEHL KNUT ,  STARZ KARL-ANTON

    IPC: H01M4/86 ,  H01M4/88 ,  H01M4/90 ,  H01M4/92 ,  H01M8/10 ,  H01M8/1004

    Abstract: A catalytic ink comprises a dispersion of carbon particles and an organic noble metal complex in a solution of ionomer. A catalytic layer (I) on a substrate material (II) containing a proton conducting polymer (ionomer), electrically conductive carbon particles and fine particles of at least a noble metal is prepared by coating the substrate material with an ink (III). The ink (III) comprises a dispersion of carbon particles and at least on organic noble metal complex in a solution of the ionomer. The coating is dried such that the ionomer and substrate are not damaged and the complex is decomposed to form finely divided noble metal particles in an oxidation state of 0. Independent claims are included for: (i) The ink (III); (ii) a process for the production of (I) on (II) by application of (III); and (iii) drying a gas diffusion electrode for a polymer electrolyte fuel cell whereby the substrate (II) is a gas distribution structure.

    CATALYST LAYER FOR POLYMER ELECTROLYTE FUEL CELLS
    8.
    发明专利
    CATALYST LAYER FOR POLYMER ELECTROLYTE FUEL CELLS 未知

    公开(公告)号：CA2280601A1

    公开(公告)日：2000-02-20

    申请号：CA2280601

    申请日：1999-08-19

    Applicant: DEGUSSA

    Inventor： KARCH RALF ,  ZUBER RALF ,  FEHL KNUT ,  STARZ KARL-ANTON

    IPC: H01M4/86 ,  H01M4/88 ,  H01M4/90 ,  H01M4/92 ,  H01M8/10 ,  H01M8/1004 ,  B01J23/40 ,  C09D11/00 ,  H01M4/94

    Abstract: The invention relates to a catalyst layer on a substrate material which contains a proton-conducting polymer (ionomer), electrically conductive carbon particles and fine particles of at least one precious metal. The catalyst layer is obtainable by coating the substrate material with an ink which contains a dispersion of the carbon particles and at least one organic precious metal complex compound in a solution of the ionomer, and drying the coating below a temperature at which the ionomer or the substrate material is thermally damaged, the precious metals in the complex compounds being present with an oxidation number of 0 and the complex compounds being thermally decomposed during drying to form the fine precious metal particles.

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