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公开(公告)号：US10175191B2
公开(公告)日：2019-01-08
申请号：US14889968
申请日：2014-09-01
发明人： Andreas Nauber , Michael Sick , Gregor Steiner , Marie-Isabell Mattern-Frühwald , Frank Mett , Rigobert Chrzan , Sabrina Sommer
IPC分类号： G01N27/404 , G01N27/30 , G01N27/413 , G01N33/00
摘要： An electrochemical gas sensor (10) has a housing (20), a working electrode (51), a counterelectrode (52) and a reference electrode (53). The housing (20) has an electrolyte reservoir (30), a gas inlet orifice (21) and at least one gas outlet orifice (22). The electrolyte reservoir (30) is filled with a liquid electrolyte (40). The gas sensor (10) has a counterelectrode carrier (26). The counterelectrode (52) is suspended on the counterelectrode carrier (26) in such a way that the counterelectrode (52) is suspended in the electrolyte reservoir (30) and the electrolyte (40) flows around the counterelectrode (52) on all sides. Preferably, the electrolyte includes (I) a solvent, e.g. water, propylene carbonate, ethylene carbonate or mixtures thereof; (ii) a conductive salt, especially an ionic liquid; and/or (iii) an organic mediator, for example substituted quinones, anthraquinones, etc.
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公开(公告)号：US11828720B2
公开(公告)日：2023-11-28
申请号：US17109880
申请日：2020-12-02
发明人： Andreas Nauber , Michael Sick , Gregor Steiner , Marie-Isabell Mattern-Frühwald , Rigobert Chrzan , Sabrina Sommer , Frank Mett , Andreas Hengstenberg
IPC分类号： G01N27/404 , G01N33/00
CPC分类号： G01N27/4045 , G01N33/0054 , Y02A50/20
摘要： A liquid electrolyte, for an electrochemical gas sensor for detecting NH3 or gas mixtures containing NH3, contains at least one solvent, one conductive salt and/or one organic mediator. The conductive salt is an ionic liquid, an inorganic salt, an organic salt or a mixture thereof. The electrolyte preferably is comprised of (I) water, propylene carbonate, ethylene carbonate or a mixture thereof as solvent; (ii) LiCl, KCl, tetrabutylammonium toluenesulphonate or 1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate as conductive salt; and (iii) tert-butylhydroquinone or anthraquinone-2-sulphonate as organic mediator.
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公开(公告)号：US10969361B2
公开(公告)日：2021-04-06
申请号：US16206032
申请日：2018-11-30
发明人： Andreas Nauber , Michael Sick , Gregor Steiner , Marie-Isabell Mattern-Frühwald , Frank Mett , Rigobert Chrzan , Sabrina Pilz
IPC分类号： G01N27/404 , H01G11/58 , G01N27/30 , G01N27/413 , G01N33/00 , H01G9/035
摘要： An electrochemical gas sensor (10) has a housing (20), a working electrode (51), a counterelectrode (52) and a reference electrode (53). The housing (20) has an electrolyte reservoir (30), a gas inlet orifice (21) and at least one gas outlet orifice (22). The electrolyte reservoir (30) is filled with a liquid electrolyte (40). The gas sensor (10) has a counterelectrode carrier (26). The counterelectrode (52) is suspended on the counterelectrode carrier (26) in such a way that the counterelectrode (52) is suspended in the electrolyte reservoir (30) and the electrolyte (40) flows around the counterelectrode (52) on all sides. Preferably, the electrolyte includes (I) a solvent, e.g. water, propylene carbonate, ethylene carbonate or mixtures thereof; (ii) a conductive salt, especially an ionic liquid; and/or (iii) an organic mediator, for example substituted quinones, anthraquinones, etc.
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公开(公告)号：US10883958B2
公开(公告)日：2021-01-05
申请号：US14890757
申请日：2014-09-01
发明人： Andreas Nauber , Michael Sick , Gregor Steiner , Marie-Isabell Mattern-Frühwald , Rigobert Chrzan , Sabrina Sommer , Frank Mett , Andreas Hengstenberg
IPC分类号： G01N27/404 , G01N33/00
摘要： A liquid electrolyte, for an electrochemical gas sensor for detecting NH3 or gas mixtures containing NH3, contains at least one solvent, one conductive salt and/or one organic mediator. The conductive salt is an ionic liquid, an inorganic salt, an organic salt or a mixture thereof. The electrolyte preferably is comprised of (I) water, propylene carbonate, ethylene carbonate or a mixture thereof as solvent; (ii) LiCl, KCl, tetrabutylammonium toluenesulphonate or 1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate as conductive salt; and (iii) tert-butylhydroquinone or anthraquinone-2-sulphonate as organic mediator.
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