Gas sensors
    1.
    发明授权
    Gas sensors 有权
    气体传感器

    公开(公告)号:US07279080B2

    公开(公告)日:2007-10-09

    申请号:US10343162

    申请日:2001-07-27

    IPC分类号: G01N27/407

    摘要: This invention provides an assembly comprising a sensing electrode and a counter electrode in contact with a membrane body formed from a solid polymer electrolyte system comprising a fluorinated polymer matrix and a charge carrying component which is dispersed in the matrix the electrodes and membrane being housed in a housing having a gas diffusion barrier through which gas may flow. The charge carrying components are fluorinated organic proton conductors (such as heptadecafluorooctane sulphonic acid, bis-trifluoromethane sulphonamide, N-(2,6-diethylphenyl)-1,1,1-trifluoromethane sulphonamide, N-benzyltrifluoromethane sulphonamide and N, N-1,2-cyclohexanediylbis (1,1,1-trifluoromethane sulphonamide)). The polymer matrix is a homopolymer or copolymer of vinylidene fluoride preferably with fluorinated comonomers. The solid polymer electrolyte system preferably contains plasticising additive(s) and is cast as a coating onto one or more electrodes eg. Platinum gas diffusion electrodes forming an assembly for use in a gas sensor especially a CO sensor.

    摘要翻译: 本发明提供一种组件,其包括与由固体聚合物电解质体系形成的膜体接触的感测电极和对电极,所述固体聚合物电解质体系包含氟化聚合物基质和电荷携带组分,其分散在基质中,电极和膜被容纳在基质中 壳体具有气体可以流过的气体扩散阻挡层。 载电组分是氟化有机质子导体(如十七氟辛烷磺酸,双三氟甲磺酸,N-(2,6-二乙基苯基)-1,1,1-三氟甲磺酰胺,N-苄基三氟甲烷磺酰胺和N,N-1 ,2-环己二基双(1,1,1-三氟甲磺酰胺))。 聚合物基质是偏二氟乙烯与氟化共聚单体的均聚物或共聚物。 固体聚合物电解质体系优选含有增塑添加剂,并且作为涂层浇铸到一个或多个电极上,例如, 铂气扩散电极形成用于气体传感器,特别是CO传感器的组件。