Solid-state sensor for the determination of concentration of gases which
can react with hydrogen
    12.
    发明授权
    Solid-state sensor for the determination of concentration of gases which can react with hydrogen 失效
    用于确定可与氢反应的气体浓度的固态传感器

    公开(公告)号:US5133857A

    公开(公告)日:1992-07-28

    申请号:US776863

    申请日:1991-10-16

    CPC分类号: G01N27/4073 G01N27/4161

    摘要: A solid-state sensor for determining the concentration of gases which can react with hydrogen, in particular, of oxygen, which includes a solid-state proton conductor into contact: on the one side, with a reference electrode, constituted in its turn by a metal hydride or a metal alloy, and on the other side with an electrode which catalyses the reaction of the gas to be detected, with said sensor being connected with a power feed system which supplies current or voltage impulses, and with a system which detects the value of potential after each impulse.

    摘要翻译: 一种固态传感器,用于确定能够与氢反应的气体的浓度,特别是与氧反应的气体的浓度,其包括固体质子导体,其与一个参比电极接触,该基准电极依次由 金属氢化物或金属合金,另一侧具有催化待检测气体的反应的电极,所述传感器与供给电流或电压脉冲的供电系统连接,并且与检测 每次冲动后的电位值。

    Zirconium phosphate and method for its preparation
    13.
    发明授权
    Zirconium phosphate and method for its preparation 失效
    磷酸锆及其制备方法

    公开(公告)号:US4826663A

    公开(公告)日:1989-05-02

    申请号:US862809

    申请日:1986-05-13

    摘要: The invention relates to a zirconium phosphate in particles having sizes comprised within the range of from 1 to 100 .mu.m, a lamellar structure with interlayer distance, in the anhydrous state, comprised within the range of from 7.9 to 8.2 .ANG. and a surface area comprised within the range of from 9 to 20 m.sup.2 /g.The method consists in altering the lamellar structure of a zirconium phosphate with layer structure of alpha type by intercalating into it an organic substance containing a proton-acceptor group and water and by a treatment with ultrasounds, in regenerating the hydrogen form of said zirconium phosphate by an acid and in washing the same with diluted acids and/or water.

    摘要翻译: 本发明涉及一种粒径在1至100μm范围内的颗粒中的磷酸锆,层间距离为无水状态的层状结构包括在7.9至8.2范围内,表面积包括 在9至20m2 / g的范围内。 该方法包括通过将含有质子 - 受体基团和水的有机物质插入其中的α型层结构来改变磷酸锆的层状结构,并通过用超声波处理,通过以下步骤再生氢形式的所述磷酸锆: 酸,并用稀酸和/或水洗涤。

    Innovative method for the preparation of proton conducting nanopolymeric membranes for use in fuel cells or in catalytic membrane reactors
    15.
    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。

    Tetravalent metal acid triphosphates
    16.
    发明授权
    Tetravalent metal acid triphosphates 失效
    四价金属酸三磷酸盐

    公开(公告)号:US07385803B2

    公开(公告)日:2008-06-10

    申请号:US10545091

    申请日:2004-02-18

    摘要: This invention is based on the preparation of new solid acid triphosphates with compositions of the general formula M(IV)(HPO4)(H2PO4)2, where M(IV) is a tetravalent metal or a mixture of tetravalent metals. These compounds are insoluble in water the greater part of most organic solvents. They show a high non-water assisted protonic conductivity (about 0.01-0.04 S/cm at 100° C. and a relative humidity lower than 1%). These compounds can be used as proton conduction separators in electrochemical devices, to operate at low relative humidity values, as for example in different fuel cells, protonic pumps for electrochemical hydrogenation and dehydrogenation of organic compounds, or for hydrogen production from hydrogenated organic compounds by electro-reforming, or also for removing hydrogen from equilibrium reactions. These compounds can also be used in electrochemical sensors, in super capacitors and as acid catalysts in non-aqueous or anhydrous gaseous phases.

    摘要翻译: 本发明基于具有通式M(IV)(HPO 4)(H 2 PO 4)2的组成的新的固体酸性三磷酸酯的制备,其中M(IV)是四价金属或四价金属的混合物。 这些化合物在大部分有机溶剂中不溶于水。 它们显示出非水辅助质子电导率高(在100℃约0.01-0.04S / cm,相对湿度低于1%)。 这些化合物可用作电化学装置中的质子传导分离器,以低相对湿度值运行,例如在不同的燃料电池,用于电化学氢化的质子泵和有机化合物的脱氢,或通过电化学从氢化有机化合物产生氢气 - 还原,或从平衡反应中除去氢。 这些化合物也可用于电化学传感器,超级电容器和非水或无水气相中的酸催化剂。

    Solid state sensor device for the determination of the concentration of
gases which can react with hydrogen
    17.
    发明授权
    Solid state sensor device for the determination of the concentration of gases which can react with hydrogen 失效
    用于确定可与氢反应的气体浓度的固态传感器装置

    公开(公告)号:US5344548A

    公开(公告)日:1994-09-06

    申请号:US71364

    申请日:1993-06-03

    CPC分类号: G01N27/4075

    摘要: A solid-state sensor device for determining the concentration of gases which can react with hydrogen, in particular oxygen, is disclosed, which is essentially composed of a solid-state protonic conductor put into contact, at one of its sides, with a reference electrode and, at its other side, with a composite electrode (sensor electrode), constituted by a catalytic material into contact with a hydride of a metal or of a metal alloy.

    摘要翻译: 公开了一种用于确定可与氢气(特别是氧)反应的气体浓度的固态传感器装置,其基本上由在其一侧与参比电极接触的固态质子导体组成 并且在另一侧具有由与金属或金属合金的氢化物接触的催化材料构成的复合电极(传感器电极)。

    Tetravalent metal diphosphonate-phosphite composition in microporous
solid crystalline form, with a narrow micropore distribution
    18.
    发明授权
    Tetravalent metal diphosphonate-phosphite composition in microporous solid crystalline form, with a narrow micropore distribution 失效
    四价金属二膦酸盐 - 亚磷酸盐组合物为微孔固体晶型,具有窄的微孔分布

    公开(公告)号:US5290746A

    公开(公告)日:1994-03-01

    申请号:US809587

    申请日:1991-12-17

    IPC分类号: C07F9/38 C07F7/00

    CPC分类号: C07F9/3843 C07F9/386

    摘要: A tetravalent metal diphosphonate-phosphite composition definable by the following general formula:M(O.sub.3 P--R--PO.sub.3).sub.1-x (HPO.sub.3).sub.2x (I)is described where:M is a tetravalent metal;x varies from 0.5 to 0.66;R is an organic radical of bivalent aromatic type, carrying side groups which increase its steric hindrance.The composition is in the form of a crystalline solid with a type .alpha. layered structure with the diphosphonic groups positioned to join said layers together by a covalent bond (pillared compounds). It has a B.E.T. surface area from 300 to 500 m.sup.2 /g depending on the nature of R in formula (I), and a porosity in the micropore radius range of less than 20 .ANG. (Angstrom), such micropores contributing to the extent of more than 95% of the total area for the most crystalline materials.

    摘要翻译: 描述了通过以下通式可定义的四价金属二膦酸盐 - 亚磷酸盐组合物:M(O3P-R-PO3)1-x(HPO3)2x(I),其中:M是四价金属; x从0.5变化到0.66; R是二价芳族类型的有机基团,带有增加其空间位阻的侧基。 组合物是具有类型(α)层状结构的结晶固体的形式,其中二膦基定位为通过共价键(柱状化合物)将所述层连接在一起。 它有一个B.E.T. 取决于式(I)中R的性质以及微孔半径范围小于20(Aangstroem)(埃)的孔隙率,表面积为300-500m2 / g,这种微孔有助于超过95 最大结晶材料总面积的百分比。