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Electrochemical gas sensor, liquid electrolyte and use of a liquid electrolyte in an electrochemical gas sensor

机译:电化学气体传感器,液体电解质和电化学气体传感器中的液体电解质的使用

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.
机译:电化学气体传感器( 10 )具有壳体( 20 ),工作电极( 51 ),逆电极( 52 < / b>)和参比电极( 53 )。壳体( 20 )具有电解质储存器( 30 ),气体入口孔( 21 / b>)和至少一个气体出口孔(< b> 22 )。电解质储存器( 30 )填充有液体电解质( 40 )。气体传感器( 10 )具有对电极载体( 26 / b>)。将逆电极( 52 )悬浮在逆电极载体( 26 / b>)上,使得逆电极( 52℃)悬浮在电解质中储存器( 30 )和电解质( 40 )在所有侧面上围绕抗衡电极( 52))流动。优选地,电解质包括(i)溶剂,例如溶剂。水,碳酸丙酯,碳酸亚乙酯或其混合物; (ii)导电盐,尤其是离子液体;和/或(iii)有机介体,例如取代的醌,蒽醌等

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