Chemistry: electrical and wave energy – Processes and products
Patent
1987-06-04
1989-01-10
Tung, T.
Chemistry: electrical and wave energy
Processes and products
204412, 204415, 204432, 204435, G07N 2746
Patent
active
047971800
ABSTRACT:
The present invention is for an electrochemical cell and method for quantitatively detecting noxious gas which comprises a first working electrode comprising a gas diffusion membrane having bonded thereto a catalytic portion electrochemically reactive with the noxious gas; a second working electrode having electrochemical activity with the oxidation/reduction products produced at the first working electrode; a counter electrode; a reference electrode; an electrolyte; means for containing said electrolyte and said electrodes; means for maintaining a fixed potential on said first working electrode relative to said reference electrode of from about 1.0 to 1.8 volts with respect to the potential of the reversible hydrogen couple of the electrolyte of the cell; and means for maintaining a fixed potential on said second working electrode relative to said reference electrode of from about 1.0 to 2.2 volts with respect to the potential of the reversible hydrogen couple of the electrolyte of the cell, the fixed potential on said working electrode being maintained at a voltage higher than the fixed potential being maintained on said first working electrode.
REFERENCES:
patent: 2805191 (1957-09-01), Hersch
patent: 3235477 (1966-02-01), Keyser et al.
patent: 3454485 (1969-07-01), Hauk et al.
patent: 3503861 (1970-03-01), Volpe
patent: 3510421 (1970-05-01), Gealt
patent: 3824167 (1974-07-01), Oswin et al.
patent: 4100048 (1978-07-01), Pompei et al.
patent: 4169779 (1979-10-01), Tataria et al.
patent: 4324257 (1982-04-01), Albarda et al.
patent: 4377446 (1983-03-01), Albery
patent: 4406770 (1983-09-01), Chan et al.
patent: 4507194 (1985-03-01), Shimomura et al.
patent: 4545382 (1985-10-01), Higgins et al.
Lingane, Electroanalytical Chemistry, 2d. ed. revised, 1958, p. 28.
Ives et al, Reference Electrodes, Theory and Practice, 1961, p. 314.
Auel RaeAnn M.
Jolson Joseph D.
Price John F.
Schneider Alan A.
Stewart David A.
Mine Safety Appliances Company
Tung T.
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