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1.发明授权
公开(公告)号：EP1040155B1
公开(公告)日：2003-05-14
申请号：EP98965772.1
申请日：1998-12-05
CPC分类号： C25B13/08 , B01D71/52 , C08G65/48 , C08J5/2256 , C08J2381/02 , H01M8/1025 , H01M8/1067
摘要： A membrane used in polymer electrolyte-fuel cells, containing sulfonated aromatic polyetherketone (sPEEK) of general formula (I), characterized in that the ion exchange equivalent (IEC) of said sulfonated polyetherketone is 1.35-1.95 nmol (-SO3H)/g (polymer) and in that the membrane has a long-term stability of at least 1,000 hours at an operating voltage of 0.4-1.1V.
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2.发明授权VERFAHREN ZUR HERSTELLUNG VON LÖSUNGEN MIT SÄUREGRUPPEN FUNKTIONALISIERTER POLYMERE DURCH MIKROWELLENBESTRAHLUNG 失效工艺生产具有酸基官能化聚合物解决方案通过微波辐射
公开(公告)号：EP0986600B1
公开(公告)日：2001-10-17
申请号：EP98937435.0
申请日：1998-06-02
发明人： SOCZKA-GUTH, Thomas , WITTELER, Helmut , DECKERS, Gregor , FRANK, Georg , BREHL, Kilian , LENZE, Jürgen , BÖNSEL, Harald , KNAUF, Rüdiger
CPC分类号： C08J3/28 , C08G65/48 , C08G2650/40 , C08J2300/10 , H01M4/8605 , H01M4/92 , H01M8/02 , Y02P70/56
摘要： The invention relates to a method for producing aqueous, hydrous and non-aqueous solutions of polymers that are functionalized by acid groups. The method is characterized in that the heat needed to produce the solution is supplied by microwave radiation. These solutions can be used as a starting material for the production of gas diffusion electrodes, fuel cells and platinum nanoparticles stabilized by polymer-electrolytes.
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公开(公告)号：EP0867048B1
公开(公告)日：2002-02-20
申请号：EP96941024.0
申请日：1996-11-26
发明人： KOSCHANY, Arthur , SCHWESINGER, Thomas , LUCAS, Christian , FRANK, Georg , DECKERS, Gregor , SOCZKA-GUTH, Thomas , BÖNSEL, Harald , KNAUF, Rüdiger
CPC分类号： H01M4/8807 , C25B9/10 , C25B11/035 , H01M4/86 , H01M4/8828 , H01M4/96 , H01M8/1004
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4.发明公开
公开(公告)号：EP1124625A1
公开(公告)日：2001-08-22
申请号：EP99948789.5
申请日：1999-09-18
CPC分类号： H01M8/1025 , B01D71/52 , B01D71/64 , B01D71/68 , H01M8/1027 , H01M8/1032 , H01M8/1039 , H01M8/1044 , H01M8/1067 , H01M8/1081 , Y02P70/56
摘要： The invention relates to membranes containing 30-99.5 wt. % of a sulphonated, strictly alternating polyetherketone with repeating units of formula (I) -AR-O-Ar'-CO-, wherein Ar and Ar' are, independently from each other, bivalent aromatic radicals, with an ion exchanger capacity of 1.3-4.0 meg (-SO3H/g) (polymer) and 0.5-70 wt. % of a partially fluorinated, non perfluorinated or perfluorinated polymer (B). The membranes can be used in fuel cells.
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5.发明公开
公开(公告)号：EP1144100A2
公开(公告)日：2001-10-17
申请号：EP99955884.4
申请日：1999-10-26
CPC分类号： H01M8/1025 , H01M8/1027 , H01M8/103 , H01M8/1044 , H01M8/1069 , H01M8/1081 , H01M8/1086 , Y02P70/56
摘要： Disclosed is a composition containing 30-95 wt.% sulphonated aromatic polyether ketone with an ion exchanger capacity of 1.3-4.0. meq (-SO3H)/g polymer, and 0.5-70 wt.% polybenzimidazol. The inventive composition can be processed into membranes like the PEK-type of sulphonated polyether ketone. Preferably, said membranes are used in fuel cells.
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6.发明授权
公开(公告)号：EP0917716B1
公开(公告)日：2003-11-05
申请号：EP97935572.4
申请日：1997-08-07
发明人： KREUER, Klaus-Dieter , FUCHS, Annette , MAIER, Joachim , FRANK, Georg , SOCZKA-GUTH, Thomas , CLAUSS, Joachim
CPC分类号： C25B13/04 , H01M2/1653 , H01M8/0289 , H01M8/08 , H01M10/02
摘要： The invention concerns proton conductors which contain between 1 and 99 wt % of an acid and between 99 and 1 wt % of a nonaqueous ampholyte, are resistant to temperatures of between -50 °C and 400 °C, and whose proton conduction is ≥ 10-5 S/cm. The invention further concerns membranes containing the proton conductors according to the invention, processes for preparing the membranes and their use in electrochemical cells, secondary batteries and electrochromic displays.
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7.发明授权
公开(公告)号：EP1039968B1
公开(公告)日：2003-11-12
申请号：EP98965752.3
申请日：1998-12-03
IPC分类号： B01J35/00
CPC分类号： C25C5/02 , B01J35/0013 , B82Y30/00 , H01M4/92 , H01M4/926 , H01M2300/0082
摘要： The invention relates to soluble nanoparticles having a diameter of 0.5 to 3 nm, preferably of 1 to 2 nm, containing the platinum alone or platinum and other metals of the platinum group. The nanoparticles are embedded in a protective colloid containing polymeric betaine which can be degraded by hydrolysis. The betaine is preferably a carbobetaine of formula -N?+R1R2-(-CH¿2-)n-CO2-, a phosphobetaine of formula -N+R1R2-(-CH2-)n-PO3- or, preferably a sulfobetaine of formula -N+R1R2-(-CH2-)n-SO3-, whereby R?1 and R2¿, independent of one another, can be the same or different, and represent alkyl radicals of 1 to 6 carbon atoms, and n represents 1, 2, or 3. In addition, the invention relates to a method for producing the nanoparticles and catalysts produced therefrom as well as to their utilization for fuel cells.
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8.发明公开
公开(公告)号：EP1246862A1
公开(公告)日：2002-10-09
申请号：EP00981353.6
申请日：2000-12-08
发明人： CUI, Wei , SOCZKA-GUTH, Thomas , FRANK, Georg
CPC分类号： C08J5/2256 , B01D67/0009 , B01D71/62 , B01D71/68 , B01D71/82 , C08G65/48 , C08G75/23 , C08J2371/12 , H01M8/1027 , H01M8/103 , H01M8/1032 , Y02P70/56
摘要： The invention relates to a method for sulfonating aromatic polymers in a gentle manner. The inventive method comprises the following steps: a) dissolving the aromatic polymer in a substantially water-free acid selected from the group consisting of concentrated sulfuric acid, chlorosulfuric acid or oleum, b) adding an organic solvent that is inert under the reaction conditions, c) adding an anhydride of a carboxylic acid, d) adding a sulfonating agent, and e) carrying out the sulfonation at a temperature below 25 °C and for a period sufficient to obtain the desired degree of sulfonation. The homogeneous process products obtained can be preferably used in the production of membranes, for example for fuel cell applications.
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