Ion conducting composite membrane materials containing an optionally modified zirconium phosphate dispersed in a polymeric matrix, method for preparation of the membrane material and its use
    1.
    发明授权
    Ion conducting composite membrane materials containing an optionally modified zirconium phosphate dispersed in a polymeric matrix, method for preparation of the membrane material and its use 有权
    含有分散在聚合物基质中的任选改性的磷酸锆的离子导电复合膜材料,膜材料的制备方法及其用途

    公开(公告)号:US07108935B2

    公开(公告)日:2006-09-19

    申请号:US10507432

    申请日:2003-03-12

    IPC分类号: H01M8/10

    摘要: The invention provides composite membrane materials comprising a polymer of the state of art uniformly filled with a zirconium phosphate, preferably α-zirconium phosphate or zirconium phosphate sulfoarylenphosphonate particels. The composite membrane materials are preferably prepared starting from a solution of a polymer of the state of art and from a colloidal dispersion of α-zirconium phosphate or a zirconium phosphate sulfoarylenphosphonate. The colloidal particles are transferred into the solution of the polymer preferably by mixing the dispersion with the solution or by means of phase transfer. The membrane material is preferably obtained by removing the solvent by evaporation or by a suitable non-solvent. Besides the composite membrane materials and the preparation methods, the use of the above membrane materials is claimed as ionomeric membranes with high overall performance in high tempreature, especially hydrogen, and in indirect methanol fuel cells and with decreased methanol crossover in direct methanol fuel cells.

    摘要翻译: 本发明提供了复合膜材料,其包括均匀填充有磷酸锆,优选α-磷酸锆或磷酸锆磺基亚芳基膦酸盐颗粒的现有技术的聚合物。 复合膜材料优选是从现有技术的聚合物的溶液和由α-磷酸锆的磷酸酯或磷酸亚烷基膦酸磷酸酯的胶体分散体开始制备的。 优选通过将分散体与溶液混合或通过相转移将胶体颗粒转移到聚合物的溶液中。 膜材料优选通过蒸发除去溶剂或通过合适的非溶剂来获得。 除了复合膜材料和制备方法外,上述膜材料的使用要求是在高温下,特别是氢气和间接甲醇燃料电池中具有高总体性能的离聚物膜,并且在直接甲醇燃料电池中甲醇交换量降低。

    Innovative method for the preparation of proton conducting nanopolymeric membranes for use in fuel cells or in catalytic membrane reactors
    3.
    发明授权
    Innovative method for the preparation of proton conducting nanopolymeric membranes for use in fuel cells or in catalytic membrane reactors 有权
    用于制备用于燃料电池或催化膜反应器的质子传导纳米聚合物膜的创新方法

    公开(公告)号:US07521141B2

    公开(公告)日:2009-04-21

    申请号:US10508748

    申请日:2003-03-20

    摘要: The invention is based on the preparation of an organic solution of preferably phosphonic acids and tetravalent metals salts, preferably of Zr, Ti, Sn and Ce, in organic solvents, which behaves as a solution of layered tetravalent metals salts, preferably phosphate-phosphonates, which are completely insoluble in the known solvents. This peculiarity allows an easy insertion of particles of the above compounds in the pores of porous membranes, in the matrices of those polymers, which are soluble in the same organic solvents, as well as in the membrane/electrode interfaces of fuel cells. The use of tetravalent metals salts, preferably zirconium phosphate-phosphonates, possessing high proton conductivity (in some cases higher than 10−1 S cm−1) allows the preparation of impregnated porous membranes and of nano-polymeric membranes combining good mechanical properties, and/or reduced permeability to gaseous species, with good proton conductivity. These membranes can therefore be employed in fuel cells even at temperatures higher than 80° C. These membranes also possess a high catalytic activity and can therefore be employed in catalytic membrane reactors.

    摘要翻译: 本发明基于在有机溶剂中制备优选膦酸和优选为Zr,Ti,Sn和Ce的四价金属盐的有机溶液,其作为层状四价金属盐,优选磷酸酯 - 膦酸盐的溶液, 其完全不溶于已知溶剂。 这种特性允许在可溶于相同有机溶剂的那些聚合物的基质以及燃料电池的膜/电极界面中容易地将上述化合物的颗粒插入多孔膜的孔中。 使用具有高质子传导性(在一些情况下高于10-1Scm -1)的四价金属盐,优选磷酸锆磷酸盐,允许制备浸渍的多孔膜和结合良好机械性能的纳米聚合物膜,以及 /或气体物质的渗透性降低,质子传导性好。 因此,这些膜即使在高于80℃的温度也可用于燃料电池中。这些膜也具有高催化活性,因此可用于催化膜反应器。

    Presursor Organic of Tetravalent Metal Phosphates and Pyrophosphates and Their Use for Electrode Modification and for the Preparation of Composite Membrane for Fuel Cells Working at Temperatures>90c and / or at Low Relative Humidity
    5.
    发明申请
    Presursor Organic of Tetravalent Metal Phosphates and Pyrophosphates and Their Use for Electrode Modification and for the Preparation of Composite Membrane for Fuel Cells Working at Temperatures>90c and / or at Low Relative Humidity 审中-公开
    四价金属磷酸盐和焦磷酸盐的有机物及其用于电极修饰和用于制备温度> 90℃和/或低相对湿度的燃料电池的复合膜的用途

    公开(公告)号:US20070224483A1

    公开(公告)日:2007-09-27

    申请号:US11579146

    申请日:2004-08-18

    CPC分类号: C01B25/372 C01B25/42

    摘要: The invention is based on the preparation of precursor organic solutions of tetravalent metal phosphates and pyrophosphates with composition M(IV)(O3P—H)2, M(IV)[O2P(OH)2]2[O2PO(OH)] and M(IV)P2O7(M=Zr, Hf, Ti). An important property of these solutions is that the said compounds are formed when the solvent is evaporated. This peculiarity allows an easy insertion of the compounds inside the pores of porous membranes, in polymeric membranes and in the electrodic interfaces of fuel cells. The acid properties of their surfaces, the high thermal stability and the insolubility in water make these particles extremely of interest for improving the efficiency of PEMFCs in the temperature range 90-130° C. The peculiar characteristics of non-water assisted proton conductivity of M(IV)[O2P(OH)2]2[O2PO(OH)] compounds open new prospects for their application in PEMFCs at low relative humidity.

    摘要翻译: 本发明基于四价金属磷酸盐和焦磷酸盐与前体有机溶液的制备,其组成为M(IV)(O 3 H 3 PH)2,M(IV)[O 2(OH)2 O 2(O 2)PO(OH)]和M(IV)P (M = Zr,Hf,Ti)。 这些溶液的重要性质是当溶剂蒸发时形成所述化合物。 这种特性允许化合物容易地插入多孔膜的孔中,在聚合物膜和燃料电池的电极界面中。 其表面的酸性能,高热稳定性和水中的不溶性使得这些颗粒对于在90-130℃的温度范围内提高PEMFC的效率非常有意义.M的非水辅助质子传导性的特殊特性 (Ⅳ)[O 2 P(OH)2]]> compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds compounds 在相对湿度较低的PEMFC中开辟新的应用前景。