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    • 2. 发明授权
    • Process and device for monitoring the hydrogen concentration
    • 用于监测氢浓度的过程和装置
    • US07175753B2
    • 2007-02-13
    • US10349276
    • 2003-01-22
    • Herbert KieselePeter Tschuncky
    • Herbert KieselePeter Tschuncky
    • G01N27/26
    • G01N27/4045G01N27/4163G01N33/005
    • A process and a device are provided for monitoring the hydrogen concentration in a gas with at least one device, which comprises an electrochemical gas sensor and a bipotentiostat, e.g., for use in internal combustion engines with hydrogen, in fuel cells and in the petrochemical industry. The electrochemical gas sensor used has two working electrodes (3) and (4), with which the hydrogen and oxygen concentrations are determined in the gas in different steps due to the application of a voltage by a bipotentiostat (5-18). In an additional, optional step, a voltage in the range of −1,100 mV to −800 mV is applied to a working electrode (4), so that hydrogen is formed at the working electrode (4) and the functional surface of the working electrode (4) as well as the sensitivity of the working electrode (3) to hydrogen can be checked. A cyclic repetition of the process steps, preferably offset in time, with two devices makes possible the continuous monitoring of the hydrogen and oxygen concentrations with regular checking of the working electrodes (3, 4) for their readiness to function.
    • 提供了一种方法和装置,用于利用至少一个装置监测气体中的氢浓度,所述装置包括电化学气体传感器和双重定位器,例如用于燃料电池和石化工业中的氢气内燃机 。 所使用的电化学气体传感器具有两个工作电极(3)和(4),由于通过双恒电位仪施加电压(5-18),气体中的氢气和氧气浓度在不同的步骤中被确定。 在额外的可选步骤中,将-1,100mV至-800mV范围内的电压施加到工作电极(4),从而在工作电极(4)和工作电极的功能表面上形成氢 (4)以及工作电极(3)对氢的敏感性。 通过两个装置对工艺步骤的循环重复(优选时间偏移)使得可以通过定期检查工作电极(3,4)来准备工作来连续监测氢和氧浓度。
    • 4. 发明授权
    • Electrochemical gas sensor with folded membrane strip
    • 具有折叠膜条的电化学气体传感器
    • US06685808B2
    • 2004-02-03
    • US10288321
    • 2002-11-05
    • Peter Tschuncky
    • Peter Tschuncky
    • G01N27404
    • G01N27/404
    • An electrochemical gas sensor is provided which can be assembled economically and in a few steps. The electrodes (1, 2, 3) with associated electric lines are applied in a planiform manner to a membrane strip, which is impermeable to the electrolyte but permeable to gases. The membrane strip (6) is deposited in the sensor housing in a zigzag-folded pattern, so that the membrane strip limits the opening of the sensor housing for the entry of the measured gas. The electrodes (1, 2, 3) are arranged stacked in the sensor housing (5, 7) at spaced locations from one another due to the membrane strip (6) deposited in a zigzag-folded pattern.
    • 提供一种电化学气体传感器,其可以经济地和几步地组装。 具有相关电线的电极(1,2,3)以平面方式施加到电解质不透气但可透气的膜条上。 膜条(6)以锯齿形折叠的图案沉积在传感器壳体中,使得膜条限制传感器外壳的开口以便测量气体的进入。 由于以锯齿形折叠的图案沉积的膜条(6),电极(1,2,3)以彼此间隔开的位置堆叠在传感器外壳(5,7)中。
    • 8. 发明申请
    • ELECTROCHEMICAL GAS GENERATOR FOR CARBON MONOXIDE
    • 一氧化碳电化学气体发生器
    • US20080041730A1
    • 2008-02-21
    • US11835603
    • 2007-08-08
    • Kerstin CAROPeter TschunckyHerbert Kiesele
    • Kerstin CAROPeter TschunckyHerbert Kiesele
    • C25B9/00C25B1/00
    • G01N33/0006C25B1/00
    • An electrochemical gas generator is provided including an electrolysis cell (1) with a gas-impermeable housing, which is closed by a gas-permeable membrane (2) for the discharge of the test gas or calibrating gas CO. A chemically inert cathode (5) formed of a noble metal, a mixture of noble metals or a material containing carbon, is in direct contact with an electrolyte (7). An anode (4) formed of a noble metal, a mixture of noble metals or a material containing carbon, is in direct contact with a mesoxalic acid salt, the mesoxalic acid salt being in direct contact with the electrolyte (7). A control unit (6) is provided that also acts as a power source and is connected to the electrodes (4, 5).
    • 提供一种电化学气体发生器,其包括具有气体不可渗透壳体的电解池(1),其由用于排出测试气体或校准气体CO的透气膜(2)封闭。化学惰性阴极(5 )由贵金属,贵金属或含碳材料的混合物形成,与电解质(7)直接接触。 由贵金属形成的阳极(4),贵金属或含碳材料的混合物与中草酸盐直接接触,所述中草酸盐与电解质(7)直接接触。 还提供控制单元(6),其也用作电源并且连接到电极(4,5)。