Process and device for monitoring the hydrogen concentration

Details Process and device for monitoring the hydrogen concentration Process and device for monitoring the hydrogen concentration

2007-02-13

2007-02-13

Diamond, Alan (Department: 1753)

Electrolysis: processes, compositions used therein, and methods

Electrolytic analysis or testing

C205S782000, C204S406000, C204S412000, C204S431000

Reexamination Certificate

active

10349276

ABSTRACT:
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.

REFERENCES:
patent: 5932079 (1999-08-01), Haupt et al.
patent: 5958214 (1999-09-01), Nikolskaja
patent: 6428665 (2002-08-01), Ilic et al.
patent: 6558519 (2003-05-01), Dodgson et al.
patent: 6896781 (2005-05-01), Shen et al.
patent: 6908536 (2005-06-01), Beckmann
patent: 6921475 (2005-07-01), Kuhr et al.
patent: 197 26 453 (2000-08-01), None

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