Carbon dioxide sensor

Details Carbon dioxide sensor Carbon dioxide sensor

2007-10-15

2011-11-15

Olsen, Kaj K (Department: 1724)

Chemistry: electrical and wave energy

Apparatus

Electrolytic

C205S784000

Reexamination Certificate

active

08057653

ABSTRACT:
The present invention generally relates to carbon dioxide (CO2) sensors. In one embodiment, the present invention relates to a carbon dioxide (CO2) sensor that incorporates lithium phosphate (Li3PO4) as an electrolyte and sensing electrode comprising a combination of lithium carbonate (Li2CO3) and barium carbonate (BaCO3). In another embodiment, the present invention relates to a carbon dioxide (CO2) sensor has a reduced sensitivity to humidity due to a sensing electrode with a layered structure of lithium carbonate and barium carbonate. In still another embodiment, the present invention relates to a method of producing carbon dioxide (CO2) sensors having lithium phosphate (Li3PO4) as an electrolyte and sensing electrode comprising a combination of lithium carbonate (Li2CO3) and barium carbonate (BaCO3).

REFERENCES:
patent: 5194134 (1993-03-01), Futata et al.
patent: 6190519 (2001-02-01), Kobayashi et al.
patent: 6325905 (2001-12-01), Matsui et al.
patent: 7006926 (2006-02-01), Ono et al.
Figueroa et al, Sensors and Actuators B, 107 (2005), pp. 839-848.

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