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    Precious metal oxide catalyst for water electrolysis
    1.
    发明授权
    Precious metal oxide catalyst for water electrolysis 有权
    贵金属氧化物催化剂用于水电解

    公开(公告)号：US08263290B2

    公开(公告)日：2012-09-11

    申请号：US13150310

    申请日：2011-06-01

    Applicant: Marco Lopez ,  Andreas Schleunung ,  Peter Biberbach

    Inventor： Marco Lopez ,  Andreas Schleunung ,  Peter Biberbach

    IPC: H01M4/02 ,  H01M4/13 ,  H01M4/36 ,  H01M4/58 ,  H01M4/90 ,  H01M8/00 ,  C25F7/00 ,  B01J20/00 ,  B01J21/00 ,  B01J21/04 ,  B01J23/00

    CPC classification number: B01J23/468 ,  B01J35/1014 ,  B01J35/1019 ,  B01J37/031 ,  C02F1/46109 ,  C02F2001/46142 ,  C02F2201/46115 ,  C25B9/10 ,  C25B11/04 ,  C25B11/0484 ,  H01M4/9016 ,  H01M8/186 ,  H01M2008/1095 ,  Y02E60/366 ,  Y02E60/528

    Abstract: The invention is directed to iridium oxide based catalysts for use as anode catalysts in PEM water electrolysis. The claimed composite catalyst materials comprise iridium oxide (IrO2) and optionally ruthenium oxide (RuO2) in combination with a high surface area inorganic oxide (for example TiO2, Al2O3, ZrO2 and mixtures thereof). The inorganic oxide has a BET surface area in the range of 50 to 400 m2/g, a water solubility of lower than 0.15 g/l and is present in a quantity of less than 20 wt. % based on the total weight of the catalyst. The claimed catalyst materials are characterized by a low oxygen overvoltage and long lifetime in water electrolysis. The catalysts are used in electrodes, catalyst-coated membranes and membrane-electrode-assemblies for PEM electrolyzers as well as in regenerative fuel cells (RFC), sensors, and other electrochemical devices.

    Abstract translation: 本发明涉及用于PEM水电解中的阳极催化剂的氧化铱基催化剂。 要求保护的复合催化剂材料包括氧化铱（IrO 2）和任选的氧化钌（RuO 2）与高表面积无机氧化物（例如TiO 2，Al 2 O 3，ZrO 2及其混合物）的组合。 无机氧化物的BET表面积在50〜400m 2 / g的范围内，水溶性低于0.15g / l，且其含量小于20wt。 ％，基于催化剂的总重量。 要求保护的催化剂材料的特征在于低电压过电压和长时间的水电解。 催化剂用于电极，催化剂涂覆的膜和用于PEM电解器以及再生燃料电池（RFC），传感器和其他电化学装置的膜 - 电极组件。

    Platinum/Ruthenium Catalyst for Direct Methanol Fuel Cells
    3.
    发明申请
    Platinum/Ruthenium Catalyst for Direct Methanol Fuel Cells 有权
    用于直接甲醇燃料电池的铂/钌催化剂

    公开(公告)号：US20080214389A1

    公开(公告)日：2008-09-04

    申请号：US11573936

    申请日：2005-08-13

    Applicant: Marco Lopez ,  Peter Biberbach

    Inventor： Marco Lopez ,  Peter Biberbach

    IPC: B01J21/18 ,  B01J23/42 ,  B01J23/46 ,  H01M4/96

    CPC classification number: H01M4/921

    Abstract: The invention relates to a carbon-supported PtRu anode catalyst for direct methanol fuel cells (DMFC) which has a platinum/ruthenium content in the range from 80 to 98 wt. %, preferably in the range from 85 to 98 wt. %, particularly preferably in the range from 85 to 95 wt. % (based on the total weight of the catalyst), on a carbon-based electrically conductive support material and has a mean particle size of less than 3 nm. The catalyst is prepared using a carbon black support material having a specific surface area (measured by the BET method) in the range from 1000 to 2000 m2/g by means of a reduction process using chemical reducing agents with addition of organic acids. Electrodes and membrane-electrode units containing the catalyst according to the invention having a high precious metal loading have an electrode layer thickness of less than 80 μm at a PtRu loading per unit area of the electrode of from 6 to 12 mg of PtRu/cm and lead to improved electric power in direct methanol fuel cells.

    Abstract translation: 本发明涉及一种用于直接甲醇燃料电池（DMFC）的碳负载PtRu阳极催化剂，其具有80至98重量％的铂/钌含量。 ％，优选在85至98重量％的范围内。 ％，特别优选为85〜95重量％。 ％（基于催化剂的总重量），在碳基导电载体材料上，并且具有小于3nm的平均粒度。 使用具有比表面积（通过BET法测量）在1000-2000m 2 / g范围内的碳黑载体材料通过使用化学还原剂的还原方法制备催化剂 加入有机酸。 含有贵金属负载量高的本发明催化剂的电极和膜 - 电极单元在每单位面积电极PtRu负载下具有小于80μm的电极层厚度，PtRu / cm 2为6至12mg， 导致直接甲醇燃料电池的电力提高。

    Salt bath for the currentless production of wear resistant boride layers
    5.
    发明授权
    Salt bath for the currentless production of wear resistant boride layers 失效
    盐浴用于无止境生产耐磨硼化物层

    公开(公告)号：US4536224A

    公开(公告)日：1985-08-20

    申请号：US630302

    申请日：1984-07-12

    Applicant: Hans-Hermann Beyer ,  Ulrich Baudis ,  Peter Biberbach ,  Wolfgang Weber

    Inventor： Hans-Hermann Beyer ,  Ulrich Baudis ,  Peter Biberbach ,  Wolfgang Weber

    IPC: C23C8/42 ,  C23C8/40 ,  C23C18/02

    CPC classification number: C23C8/40

    Abstract: There is described a salt bath based on an alkali and/or alkaline earth metal halide with which there can be produced without the use of current adherent and wear resistant boride coatings on metallic workpieces. This bath contains gaseous boron monofluoride or a compound from which there is formed intermediately boron monofluoride. Advantageous there is used a salt bath containing 30-60% BaCl.sub.2, 10-25% NaCl, 1-20% boron oxide or borate, 10-30% NaF, and 1-15% B.sub.4 C.

    Abstract translation: 描述了基于碱金属和/或碱土金属卤化物的盐浴，其可以在金属工件上不使用目前的粘附和耐磨的硼化物涂层来制备。 该浴含有气态一氟化硼或形成中间一氟化硼的化合物。 使用含有30-60％BaCl 2，10-25％NaCl，1-20％氧化硼或硼酸盐，10-30％NaF和1-15％B 4 C的盐浴。

    Precious Metal Oxide Catalyst for Water Electrolysis
    7.
    发明申请
    Precious Metal Oxide Catalyst for Water Electrolysis 有权
    贵金属氧化物水电解催化剂

    公开(公告)号：US20070292744A1

    公开(公告)日：2007-12-20

    申请号：US10595480

    申请日：2004-10-29

    Applicant: Marco Lopez ,  Andreas Schleunung ,  Peter Biberbach

    Inventor： Marco Lopez ,  Andreas Schleunung ,  Peter Biberbach

    IPC: B01J23/46 ,  C02F1/461 ,  C25B1/10 ,  C25B11/04 ,  H01M4/92 ,  H01M8/18

    CPC classification number: B01J23/468 ,  B01J35/1014 ,  B01J35/1019 ,  B01J37/031 ,  C02F1/46109 ,  C02F2001/46142 ,  C02F2201/46115 ,  C25B9/10 ,  C25B11/04 ,  C25B11/0484 ,  H01M4/9016 ,  H01M8/186 ,  H01M2008/1095 ,  Y02E60/366 ,  Y02E60/528

    Abstract: The invention is directed to iridium oxide based catalysts for use as anode catalysts in PEM water electrolysis. The claimed composite catalyst materials comprise iridium oxide (IrO2) and optionally ruthenium oxide (RuO2) in combination with a high surface area inorganic oxide (for example TiO2, Al2O3, ZrO2 and mixtures thereof). The inorganic oxide has a BET surface area in the range of 50 to 400 m2/g, a water solubility of lower than 0.15 g/l and is present in a quantity of less than 20 wt. % based on the total weight of the catalyst. The claimed catalyst materials are characterised by a low oxygen overvoltage and long lifetime in water electrolysis. The catalysts are used in electrodes, catalyst-coated membranes and membrane-electrode-assemblies for PEM electrolyzers as well as in regenerative fuel cells (RFC), sensors, and other electrochemical devices.

    Abstract translation: 本发明涉及用于PEM水电解中的阳极催化剂的氧化铱基催化剂。 要求保护的复合催化剂材料包括氧化铱（IrO 2 N 2）和任选的氧化钌（RuO 2 N 2）与高表面积无机氧化物（例如TiO 2） 2个，2个O 3，3个ZrO 2和它们的混合物）。 无机氧化物的BET表面积在50〜400m 2 / g的范围内，水溶解度低于0.15g / l，且其含量小于20wt。 ％，基于催化剂的总重量。 要求保护的催化剂材料的特征在于低电压过电压和长时间的水电解。 催化剂用于电极，催化剂涂覆的膜和用于PEM电解器以及再生燃料电池（RFC），传感器和其他电化学装置的膜 - 电极组件。

    Process for removal of sand mold residues from cast parts
    9.
    发明授权
    Process for removal of sand mold residues from cast parts 失效
    从铸件中除去砂模残渣的工艺

    公开(公告)号：US4441930A

    公开(公告)日：1984-04-10

    申请号：US217094

    申请日：1980-12-16

    Applicant: Ulrich Baudis ,  Peter Biberbach ,  Wolfgang Weber

    Inventor： Ulrich Baudis ,  Peter Biberbach ,  Wolfgang Weber

    IPC: B22D29/00 ,  B22D31/00 ,  C23G1/28 ,  C03C23/00

    CPC classification number: B22D31/002 ,  B22D29/002 ,  C23G1/28

    Abstract: For removing and dissolving sand mold residues from cast parts, particularly sand mold residues containing zirconium oxide and titanium oxide, there have previously been used mechanical and electrochemical processes in salt melts. However, these processes are very expensive, attack the surface of the cast pieces or fail to work with sand mold constituents which are difficult to dissolve. These disadvantages are avoided by inserting the cast parts having adhering sand mold residues into a melt of 55 to 97 weight % of alkali metal hydroxide and 3 to 45 weight % of one or more fluorides of an element of the first to third main group of the periodic system of elements and/or zinc at 400.degree. to 900.degree. C. Preferably the salt melt additionally contains a boron-oxygen and/or a boron-fluorine compound.

    Abstract translation: 为了从铸件中除去和溶解砂模残渣，特别是含有氧化锆和氧化钛的砂模残渣，以前已经在盐熔体中使用机械和电化学方法。 然而，这些方法非常昂贵，侵蚀铸件的表面或者不能与难以溶解的砂模成分一起使用。 通过将具有粘附的砂模残余物的铸造件插入55至97重量％的碱金属氢氧化物和3至45重量％的第一至第三主要元素的一种或多种氟化物的熔体中来避免这些缺点 在400〜900℃下元素和/或锌的周期性体系。优选地，盐熔体还含有硼 - 氧和/或硼 - 氟化合物。

    Platinum/ruthenium catalyst for direct methanol fuel cells
    10.
    发明授权
    Platinum/ruthenium catalyst for direct methanol fuel cells 有权
    用于直接甲醇燃料电池的铂/钌催化剂

    公开(公告)号：US07776781B2

    公开(公告)日：2010-08-17

    申请号：US11573936

    申请日：2005-08-13

    Applicant: Marco Lopez ,  Peter Biberbach

    Inventor： Marco Lopez ,  Peter Biberbach

    IPC: B01J21/18 ,  B01J23/40 ,  B01J23/74 ,  B01J23/00 ,  B01J23/42 ,  B01J23/44 ,  H01M4/02 ,  H01M4/58 ,  C22C5/04

    CPC classification number: H01M4/921

    Abstract: The invention relates to a carbon-supported PtRu anode catalyst for direct methanol fuel cells (DMFC) which has a platinum/ruthenium content in the range from 80 to 98 wt. %, preferably in the range from 85 to 98 wt. %, particularly preferably in the range from 85 to 95 wt. % (based on the total weight of the catalyst), on a carbon-based electrically conductive support material and has a mean particle size of less than 3 nm. The catalyst is prepared using a carbon black support material having a specific surface area (measured by the BET method) in the range from 1000 to 2000 m2/g by means of a reduction process using chemical reducing agents with addition of organic acids. Electrodes and membrane-electrode units containing the catalyst according to the invention having a high precious metal loading have an electrode layer thickness of less than 80 μm at a PtRu loading per unit area of the electrode of from 6 to 12 mg of PtRu/cm2 and lead to improved electric power in direct methanol fuel cells.

    Abstract translation: 本发明涉及一种用于直接甲醇燃料电池（DMFC）的碳负载PtRu阳极催化剂，其具有80至98重量％的铂/钌含量。 ％，优选在85至98重量％的范围内。 ％，特别优选为85〜95重量％。 ％（基于催化剂的总重量），在碳基导电载体材料上，并且具有小于3nm的平均粒度。 使用具有通过添加有机酸的化学还原剂的还原方法，使用具有1000-2000m 2 / g的比表面积（通过BET法测量）的炭黑载体材料制备催化剂。 含有贵金属负载量高的本发明催化剂的电极和膜 - 电极单元，PtRu负载量为6〜12mg PtRu / cm 2时Pt电极厚度小于80μm， 导致直接甲醇燃料电池的电力提高。

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