Tungsten-containing hydrogen-storage materials for anodes of PEM fuel cells
    3.
    发明授权
    Tungsten-containing hydrogen-storage materials for anodes of PEM fuel cells 有权
    含有PEM燃料电池阳极的含钨储氢材料

    公开(公告)号:US08557485B2

    公开(公告)日:2013-10-15

    申请号:US12332440

    申请日:2008-12-11

    IPC分类号: H01M4/02

    摘要: The incorporation of tungsten-containing hydrogen spillover materials into a composite fuel cell anode can be helpful in preserving the carbon catalyst support materials in the fuel cell cathode during periods of hydrogen starvation. Preferred examples of such tungsten-containing hydrogen spillover materials are tungsten oxides and tungsten silicides. These materials, when physically mixed with catalyst-loaded carbon support particles in a composite anode, have shown the ability to promote hydrogen storage in amounts that, during a disruption of hydrogen gas flow, can postpone an anodic potential excursion into the oxygen evolution region for a period of at least several seconds.

    摘要翻译: 将含钨氢气溢出物质掺入复合燃料电池阳极可有助于在氢气饥饿期间保持燃料电池阴极中的碳催化剂载体材料。 这种含钨氢气溢出材料的优选实例是钨氧化物和硅化钨。 这些材料在复合阳极中与催化剂负载的碳载体颗粒物理混合时已经显示出促进氢储存的能力,其量在氢气流动破坏期间可以将阳极电位偏移推迟到氧气进入区域 至少几秒的时间。

    ANODE MATERIALS FOR PEM FUEL CELLS
    4.
    发明申请
    ANODE MATERIALS FOR PEM FUEL CELLS 有权
    PEM燃料电池的阳极材料

    公开(公告)号:US20100151295A1

    公开(公告)日:2010-06-17

    申请号:US12332440

    申请日:2008-12-11

    IPC分类号: H01M8/10

    摘要: The incorporation of tungsten-containing hydrogen spillover materials into a composite fuel cell anode can be helpful in preserving the carbon catalyst support materials in the fuel cell cathode during periods of hydrogen starvation. Preferred examples of such tungsten-containing hydrogen spillover materials are tungsten oxides and tungsten silicides. These materials, when physically mixed with catalyst-loaded carbon support particles in a composite anode, have shown the ability to promote hydrogen storage in amounts that, during a disruption of hydrogen gas flow, can postpone an anodic potential excursion into the oxygen evolution region for a period of at least several seconds.

    摘要翻译: 将含钨氢气溢出物质掺入复合燃料电池阳极可有助于在氢气饥饿期间保持燃料电池阴极中的碳催化剂载体材料。 这种含钨氢气溢出材料的优选实例是钨氧化物和硅化钨。 这些材料在复合阳极中与催化剂负载的碳载体颗粒物理混合时已经显示出促进氢储存的能力,其量在氢气流动破坏期间可以将阳极电位偏移推迟到氧气进入区域 至少几秒的时间。

    Method for characterizing the porosity in fuel cell electrodes
    5.
    发明授权
    Method for characterizing the porosity in fuel cell electrodes 有权
    表征燃料电池电极孔隙率的方法

    公开(公告)号:US08257979B2

    公开(公告)日:2012-09-04

    申请号:US11938521

    申请日:2007-11-12

    IPC分类号: G01N27/00

    摘要: A method for evaluating the composition of an MEA for a fuel cell. The method includes soaking the MEA in an unsaturated organic compound for a predetermined period of time, and then allowing the MEA to dry. The method then includes staining the MEA with osmium tetroxide (OsO4) in a closed container. The stained MEA is then encased in an epoxy. Thin sections of the encapsulated MEA are then prepared, and the sections are viewed through a transmission electron microscope. The stained MEA will show dark regions where the ionomer and carbon particles are located and lighter regions that are epoxy filled pores.

    摘要翻译: 一种用于评估燃料电池的MEA的组成的方法。 该方法包括将MEA浸渍在不饱和有机化合物中预定的时间,然后使MEA干燥。 然后该方法包括在密闭容器中用四氧化锇(OsO 4)染色MEA。 然后将染色的MEA包裹在环氧树脂中。 然后制备包封的MEA的薄截面,并通过透射电子显微镜观察切片。 染色的MEA将显示离子交联聚合物和碳颗粒位于的较暗区域以及环氧树脂填充孔的较浅的区域。

    Method for imaging the ionomer spatial distribution in fuel cell electrodes
    6.
    发明授权
    Method for imaging the ionomer spatial distribution in fuel cell electrodes 有权
    在燃料电池电极中成像离聚物空间分布的方法

    公开(公告)号:US07695974B2

    公开(公告)日:2010-04-13

    申请号:US12021675

    申请日:2008-01-29

    IPC分类号: G01N21/75

    CPC分类号: G01N23/04

    摘要: A method for evaluating the spatial distribution of an ionomer in a fuel cell MEA. The method includes embedding the MEA in an epoxy, and then slicing thin sections from the MEA. The sliced sections are then exposed to a titanium tetrachloride vapor that stains the epoxy. The stained sections are then viewed with, for example, a transmission electron microscope (TEM) where the lighter regions in the TEM image show the ionomer distribution.

    摘要翻译: 一种用于评估燃料电池MEA中离聚物的空间分布的方法。 该方法包括将MEA嵌入环氧树脂中,然后从MEA切片薄切片。 然后将切片切片暴露于污染环氧树脂的四氯化钛蒸汽。 然后用例如透射电子显微镜(TEM)观察染色部分,其中TEM图像中的较亮区域显示离聚物分布。

    Combinations of hydrogen storage materials including amide/imide
    9.
    发明授权
    Combinations of hydrogen storage materials including amide/imide 失效
    含有酰胺/酰亚胺的储氢材料的组合

    公开(公告)号:US07029649B2

    公开(公告)日:2006-04-18

    申请号:US10649923

    申请日:2003-08-26

    IPC分类号: C01B3/04 C01B3/06 C01B3/08

    摘要: The invention provides a method of reversibly producing a source of hydrogen gas comprising mixing together a plurality of hydrogen-containing starting materials; and then heating the mixed materials at a temperature sufficient to release hydrogen. Upon release of hydrogen, there is formed a residue which comprises at least one material different from the starting materials. There is also synergy whereby it is possible to regenerate at least one of the hydrogen-containing starting materials by exposing hydrogen gas to the aforesaid residue.

    摘要翻译: 本发明提供了可逆地生产氢气源的方法,包括将多个含氢原料混合在一起; 然后在足以释放氢气的温度下加热混合材料。 在释放氢时,形成残渣,该残渣包含至少一种不同于原料的材料。 还有协同作用,通过将氢气暴露于上述残留物中,可以再生含氢原料中的至少一种。